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HomeMy WebLinkAbout14-160DRAINAGE REPORT F OR PEBBLE CREEK Phase7D College Station, Texas JUNE2014 REvlSED NOVEMBER 2014 MBESI# 1065-0019 M cCL U R E & BROW NE E N GI NE ERI NG/SU R VEY I NG, INC . 1008 Woodcreek Dr .. Suite 103 · Col lege Station , Tx . 77845 · (979) 693-3838 Enginee r Reg . No . F-458 Survey Reg. No. 101033-00 Pebble Creek, Phase 7D Stormwater Management Technical Design Summary Report MBES/#1065-0019 PART I -Executive S ummary R e port Section l -Contact Information: Project De signer: Project Devel oper: Submittal Date: McClure and Browne Engineering and S ur veying , lnc. 1008 Woodcreek Drive, Suite 103 College Station, TX 77845 979-693-3838 Pebble Creek Land Company 4500 Pebble Creek Parkway College Station, TX 77845 979-690-0992 June 20 14 Section 2 -General Information: Pebble C reek 7D is a ph ase of the Pebble Creek master pl anned community to be constructed in so uth Co ll ege Station . The total area of the development is approximately 55 acres with a total of 84 lots. The plan is based on the Pre li min ary Plat submitted May 2013. Section 3 -Pro ject Location: Pebble Creek 7D is located in so uth College Station near the intersection of Ro yal Adelade Dri ve and Pebble Creek Parkway. The entire project site is lo cated within the city limits of College Station . The entire site is located w ithin the A lum Creek and Lick Creek Drainage Basin . A portion of the site is s hown to be within th e 100-year floodplain. (Fema F irm Map # 48041 C0350E). Based on Table B-1 , Appendix B of the Unified Stormwater De s ign Guidelines, Alum Creek from S.H . 6 downstream is not required to have detention for flood contro l. Section 4 -Hydro logic Characteristics: Th e project s ite is mo stl y dense trees and underbrush with the heaviest concentrations of vegetation being near the creeks . There is a well defined drainage swale that separates Phase 70 from 7B . This drainage swale conveys stormwater east to Lick Creek. There are no existi ng drainage easements or ROW on the property . With this development drainage easements will be pro v ided a long the paths of conveyance to th e exi sting creek . Stormwater Management Technical Design Summary Report Page 1 of 2 Pebble Creek, Ph ase 7D Section 5 -Stormwater Management: As state d in Section 3, no d ete ntion will be pro vide d for thjs project. Stormwater will be conveyed by curb and g utter to reces sed inlets. The sto rmwater will be di sc harged directly into the existing drainage swale or T ributary AC-I of Alum Creek. Proper end treatments and riprap stabilization w ill be use d to prevent erosion. Section 6 -Coord in ation and Permitting: No coordinati o n or permittin g is required for thi s development. Section 7 -Reference: Exhi bit A Exhibit B Exhibit C-1 Exhibi t C -2 Exhib it C -3 Exh ibit C-4 Exhibit C-5 Exhibit C-6 Exhibit D-1 Exhib it D-2 Append ix D -Technical Design Summary Drainage Area Map (Storm Drain) Rational Formula Drainage Area Calculations Inlet Computations Pipe Size Calculations -I 0 year storm Pipe Size Calculations -100 year storm Hydraulic Grade Line -I 0-Year Sto rm Hydraulic Grade Line -I 00-Year Storm I 0 Year Street Capacity Calculations 100 Year Street Capacity Ca lculations Stormwater Management Technical De s ign S umm ary Report Pebble Creek, Phase 7D Page 2 of2 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY The Cities of Bryan and College Station both require storm drainage design to follow these Un ified Stormwater Design Guidelines . Paragraph C2 of Section Ill (Administration) requires submittal of a drainage report in support of the drainage plan (stormwater management plan) proposed in connection with land development projects , both site projects and subd ivi sions . That report may be submitted as a traditional prose report, complete with applicable maps , g ra phs , tables and drawings , or it may take the form of a "Technical Design Summary". The format and content for such a summary report shall be in substantial conformance with the description in this Appendix to those Guidelines. In either format the report must answer the questions (aff irmative or negative) and prov ide , at minimum , the in formation prescribed in the "Technical Design Summary" in this Appendix . The Stormwater Management Technical Design Summary Report shall include several parts as listed below . The information called for in each part must be provided as appl icable. In addition to the requirements for the Executive Summary, th is Appendix includes several pages detail ing the requirements for a Technical Design Summary Report as forms to be completed . These are provided so that they may be copied and completed or scanned and d igitized . In addit ion , electron ic versions of the report forms may be obtained from the City. Requirements for the means (medium) of submittal are the same as for a conventional report as detailed in Section Ill of these Guidelines. Note: Part 1 -Executive Summary must accompany any drainage report requ ired to be provided in connection with any land development project , regardless of the format chosen for said report . Note: Parts 2 through 6 are to be provided via the forms provided in this Appendix . Brief statements should be included in the forms as requested , but additional information should be attached as necessary. Part 1 -Executive Summary Report Part 2 -Project Administration Part 3 -Project Characteristics Part 4 -Drainage Concept and Design Parameters Part 5 -Plans and Specifications Part 6 -Conclusions and Attestation STORMWATER MANAGEMENT TECHNICAL DESIGN SUMMARY REPORT Part 1 -Executive Summary This is to be a brief prose report that must address each of the seven a re as listed below. Ideally it w ill include one or more paragraphs about each item. 1. Name , address , and contact information of the engineer submitt ing the report, and of the land owner and developer (or applicant if not the owner or developer). The date of subm ittal shou ld also be included. 2. Identification of the size and general nature of the proposed project , including any proposed project phases . This pa ragraph should also include reference to STORMWATER DESIGN GUIDELINES Effective Feb ruary 2007 Page 1of26 APPENDI X . D: TECH . DESIGN SUMMARY A s Revised Fe bruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY applications that are in process with either City : plat(s), site plans , zoning requests, or clearing/grading permits , as well as reference to any application numbers or codes assigned by the City to such request. 3 . The location of the project should be described . This should identify the Named Regulatory Watershed(s) in which it is located , how the entire project area is situated therein , whether the property straddles a watershed or basin divide , the approximate acreage in each basin, and whether its position in the Watershed dictates use of detention design. The approximate proportion of the property in the city limits and within the ET J is to be identified, includ ing whether the property straddles city jurisdictional lines. If any portion of the property is in floodplains as described in Flood Insurance Rate Maps published by FEMA that should be disclosed. 4. The hydrologic characteristics of the property are to be described in broad terms: existing land cover ; how and where stormwater drains to and from neighboring properties ; ponds or wetland areas that tend to detain or store stormwater; existing creeks , channels , and swales crossing or serving the property ; all ex isting drainage easements (or ROW) on the property, or on neighboring properties if they service runoff to or from the property . 5. The general plan for managing stormwater in the ent ire project area must be outlined to include the approximate size , and extent of use , of any of the following features: storm drains coupled with streets ; detention I retention facilities ; buried conveyance conduit independent of streets ; swales or channels ; bridges or culverts ; outfal ls to principal watercourses or their tributaries ; and treatment(s) of existing watercourses. Also , any plans for reclaiming land within floodplain areas must be outlined. 6. Coordination and permitting of stormwater matters must be addressed . This is to include any specialized coordination that has occurred or is planned with other entities (local, state , or federal). This may include agencies such as Brazos County government, the Brazos River Authority, the Texas A&M University System , the Texas Department of Transportat ion , the Texas Comm ission for Environmental Quality , the US Army Corps of Eng ineers, the US Environmental Protection Agency , et al . Mention must be made of any permits , agreements , or understandings that perta in to the project. 7. Reference is to be made to the full drainage report (or the Technical Design Summary Report) which the executive summary represents . The princ ipal elements of the main report (and its length), including any maps , drawings or construction documents , should be itemized. An example statement might be : "One __ -page drainage report dated , one set of construction drawings ( __ sheets) dated , and a ___ -page specifications document dated ____ comprise the drainage report for this project." STORMWATER DESIGN GUIDELINES Effective February 2007 Pag e 2 of 26 APPENDI X. D : TECH . DESIGN SUMMARY As Revi sed Februa ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Start (Page 2.1) Enaineerina and Design Professionals Information Engineering Firm Name and Add ress : J urisdiction McClure & Browne Engineering/Surveying, Inc . City: Bryan 1008 Woodcreek Dr., Ste . 103 x College Station College Station , Tx 77845 Date of Subm itta l: Oct 2013 , Lead Engineer's Name and Contact lnfo .(phone , e-mai l , fax ): I Other: Jeffery Robertson, PE, PH: 693-3838 , FX: 693-2554 , jeffr@mcclurebrowne .com Supporting Engineering I Consu lting Firm(s): Other contacts: Developer I Owner I Applicant Information Developer I Applicant Name and Address : Phone and e-mail : Pebble Creek Land Company PH : 690-0992 College Station, Tx 77802 wendy .s@pebblecreektx.org Property Owner(s) if not Developer I App licant (&address ): Phone and e-ma il: Project Identification Deve lopment Name: Pebble Creek Phase 70 Is subject property a site project, a single-phase subdivision , or part of a multi-phase subdivis ion? Yes If multi-phase , subject property is phase 70 of Legal description of s ubject pro perty (phase ) or Project A rea : (see Section 11 , Paragraph B-3a) If subject property (phase) is second or later phase of a project , describe general status of all earlie r ph ases . For most recent earlier phase Include submittal a nd review dates. Most earlier phases are completely developed . This is the last phase in this part of the subdivision. Additional property will be developed along Rock Prairie Road and near the business center in the future. Genera l Location of Project Area , or subject property (phase): Generally between Phase 78 and Alum Creek . In City Limits? Bryan : acres . College Station : 55 .03 acres . STORMWATER DESIGN GUIDELINES Effective Fe brua ry 2007 Extraterritorial Jurisd ict ion (acreage): Bryan : College Station : Acreage Outside ET J : Pag e 3 of 26 AP P END IX. D : TECH . DESIGN SUMMARY As Rev ised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 2 -Project Administration I Contin ued (page 2 .2) Project Identification (continued) Roadwa ys abutti ng or with in Pr oject Area or Abutt ing tracts , platted land , or bu ilt subject property : de velopments : Royal Adelade Drive & Pebble Creek Lick Creek Park Pebble Creek Phase ?B Parkway Pebble Creek Phase ?C Named Regulatory Watercourse(s) & Waters hed (s): T ri butary Ba s in(s ): Alum Creek & Lick Creek Pl at Information Fo r Project or Subject Property (or Phase) Preliminary Plat File #: Final Plat File #: Date : Name : Stat us and Vol /Pg : If two plats , second name : Fi le#: Status : Date: Zoning Information For Project or Subject Property (or Phase) Zoning T ype : GS Exist in g or Proposed? Case Code : Case Date Status: Existing Zon i ng T ype : Existi ng or Proposed? Case Code : Case Date Status : Stormwater Management Plann i ng For Project or Subject Property (or Phase) Planni ng Conference(s ) & Date (s): Part ic ipa nts : Prelim inary Report Required? S ubmittal Date Review Date Review Comments Addressed? Yes No --In Writ ing? W hen? -- Compliance W ith Pre lim i nary Dra i nage Repo rt. Briefly describe (or attach documentation ex plai ni ng) any deviation(s) from provisions of Preli m inary Drainage Report , if any . STORMWATER D ES IGN GUIDELINES Effective February 2007 Page 4 of 26 AP PENDIX . 0 : TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY P art 2 -P roject Administration I Continu ed (page 2 .3) Coordination For Project or Subject Property (or Phase) No te: Fo r any Coordination of stormwater matters indicated below, attach documentation describing and substantiating any agreements , unde rsta ndings , co ntracts , or a pprovals. Coordination Dept. Contact: Date : Subject: With Oth er Departme nts of J uris d iction C ity (Bryan or College Stat ion) Coordi nat ion With S um marize need(s) & actions take n (include contacts & dates): No n-jurisdict ion C ity Needed? Yes __ N o ~ Coordination with Summarize need(s) & actions taken (i nclude contacts & dates): Brazos County Needed? Yes No X -- Coordinat ion with S ummarize need(s) & actions taken (i nclude contacts & dates): TxDOT Needed? Yes --No ~ Coordination with Summarize need(s) & actions taken (inclu de contacts & dates): T AMUS Needed? Yes No x ---- Permits For Project or Subject Property (or Phase) As to sto rmwater management , are permits required fo r the proposed work from any of the entities listed be low? If so , s ummarize status of efforts towa rd that objecti ve in spaces be low. En tity Pe rmitted o r Approved? US Army Crops of Engineers No x Yes --- US En vir o nmenta l Protection Agency No x Yes --- Texas Commission on Environme ntal Qua lity No L_ Yes -- Brazos River Authority No ~ Yes - STORMWATER DESIGN GUIDELINES Effe ct ive February 2007 Page 5 of 26 Statu s of Action s (include dates) APPENDIX. D : TECH. DESIGN SUMMARY As Rev ised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro12ert~ Characteristics I Start (Page 3.1) Nature and Scope of Proposed Work Existing: Land proposed for development currently used, including extent of impervious cover? Land is currently oak covered pasture land . Site __ Redevelopment of one platted lot , or two or more adjoining platted lots . Development __ Building on a single platted lot of undeveloped land . Project __ Building on two or more platted adjoining lots of undeveloped land . (select all __ Building on a single lot , or adjoining lots, where proposed plat will not form applicable) a new street (b ut may include ROW dedication to existing streets). __ Other (exp la in): Subdivision __ Construction of streets and utilities to serve one or more platted lots . Development _X __ Construction of streets and utilities to serve one or more proposed lots on Project lands represented by pending plats . Site proje cts : building use(s), approximate floor space , impervious cover ratio . Describe Subdivisions : number of lots by general type of use , linear feet of streets and Nature and drainage easements or ROW . Size of 84 Lots -Single Family Residential Pro12osed Streets -4 ,340 LF Project -Is any work planned on land that is not platted If yes, explain : or on land for which platting is not pending? x No Yes -- -- FEMA Floodplains Is any part of subject property abutting a Named Regulatory Watercourse /No __ Yes _lL_ (Sectio n II, Pa ragrap h B1 ) or a tributary thereof? Is any part of subject property in floodplain /No _ Yes x Rate Map _ 48041 C0350E area of a FEMA-regulated watercourse? -- Encroachment( s) Encroachment purpose (s): __ Building site(s) __ Road crossing(s) into Floodplain areas planned ? __ Utility crossing(s) ~Other (exp lain): No Back of Lots in Block 39 -- Yes X If floodplain areas not shown on Rate Maps , has work been done toward amending the FEMA- approved Flood Study to define allowable encroachments in proposed areas? Expla in. STORMWATER DESIGN GUIDELINES Effective Februa ry 2007 Pag e 6 of 26 APPENDI X . D: TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY P a rt 3 -P r oQert~ Characteristics I Continued (Page 3.2) Hydro logic Attributes of Subject Property (or Phase) Has an earlier hydrolog ic ana lysis been done for larger area inclu din g subject property? Yes Reference t he study (&date) here , and attach copy if not already in City files . -- Is the stormwater management plan for the property in substantial conformance with the ear lier study? Yes No If not , ex plain how it differs . No If subj ect pro perty is not part of multi-phase project, describe stormwate r management x plan for the property in Part 4 . -If property is part of m ulti-phase project, provide overview of stormwate r management plan fo r Project Are a here. In Part 4 describe how plan for su bj ect property will comply t herewith . Do existi ng topographic features on subject property store or deta in runoff? ~ No --Yes Describe them (include approximate size , volume , o utfall , mode l , etc ). Any k nown drainage or flooding prob lems in areas near subject property? _ X _ No --Yes Identify: Based on location of study property in a watershed , is Typ e 1 Detention (flood control) needed ? (see Table B-1 in Appendix B) __ Detention is requ ired. --Need must be evaluated . _25__ Detention not required . What dec ision has been reached? By whom? If the need for Detention not needed per Appendix B Type 1 Dete nti o n How was determination ma de? must be evaluated: STORMWATER DES IGN GUIDELINES Effective Feb ruary 2007 Pag e 7 of 26 APPEND IX . D : TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 3 -P r ogert~ Characterist ics I Co nt inued (Page 3.3) Hydrologic Attributes of Subject Property (or Phase) (continued) Does subject property straddle a Watershed or Basin divide ? x No Yes If yes , -- describe splits below. In Part 4 describe desiqn concept for handlinq this . Watershed or Ba si n Larger acre age Lesser acreage A bo ve -Project Areas (Section II , Paragrap h 83-a) Does Project Area (project or phase) receive ru noff from upland areas? ~No --Yes Size(s) of area(s) in acres : 1) 2) 3) 4) Fl ow Characteristics (each instance) (overland s heet , shal low concentrated, recognizable concentrated section(s), small creek (non-regulatory), regulatory Watercou rse or tributary); Flow determination : Out li ne hydrologic methods and assum pt ions: Does storm runoff drain from public easements or ROW onto or across subject property? --No --Yes If yes , describe facilit ies in easeme nt or ROW : A re changes in runoff characteristics subject to change in fut ure? Exp lain Conveyan ce Pat hways (Section II , Paragraph C2) Must runoff from study property rlrain across lower properties before reaching a Regulatory Watercourse or tributary? X No Yes Describe length and characteristics of each conveyance pat hway(s). Include ownership of property(ies ). STORMWATER DESIGN GUIDELINES Effective February 2007 Page 8 of 26 APPEN D IX . D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY P a rt 3 -ProQert~ Characteristics I Co nti nued (Page 3.4) Hydrologic Attributes of Subject Property (or Phase) (continued) Conveyanc e Pathways (con t inued ) Do drainage If yes , for what part of length? % Created by? __ plat , or easements exist for any __ instrument. If instrument(s), descri be t heir provisions . part of pathway(s )? No -- Yes -- Where runoff must cross lower properties , describe c haracteristics of abutting lower property(ies ). (Existing waterco urses? Easement or Consent aqu ired?) Pa t hway Areas Describe any built or improved drainage fac ilities ex istin g near the property (culverts , bridges , lined chan nels , buried conduit , swales , dete nt ion ponds , etc ). Ne arby Drai nag e Do any of these have hydrolog ic or hydra uli c influence on proposed stormwater Faci lit ies design? --No --Yes If yes , ex pla in : STORMWATER DESIGN GUIDELINES Effective Feb ruary 2007 Pag e 9 of 26 A PPENDI X . D : TECH. DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Start (Page 4 .1) Stormwater Management Concept Discharge(s) From Upland Area(s) If runoff is to be received from upland areas , what design drainage features will be used to accommodate it and insure it is not blocked by future development? Describe for each area , flow section , or discharge point. Discharge(s) To Lower Property(ies) (Section II , Paragraph E1) Does project include drainage features (existing or future) proposed to become public via platting? --No --Yes Separate Instrument? No Yes Per Guidelines referen ce above , how will __ Establishing Easements (Scenario 1) runoff be discharged to neighboring __ Pre-development Release (Sce nario 2) property(ies )? Combination of the two Scenarios -- Scenario 1 : If easements are proposed , describe where needed , and provide status of actions on each . (Attache d Exhibit # ) Scenario 2 : Provide general description of how release (s) will be managed to pre-development conditions (dete ntion , sheet flow , partially concentrated , etc.). (Attached Exhibit # ) Combination : If combination is proposed , explain how discharge will differ from pre- development conditions at the property line for each area (or point) of release . If Scenario 2 , or Combination are to be used , has proposed design been coordinated with owner(s) of receiving property(ies)? No --Yes Explain and provide documentation. STORMWATER DESIGN GUIDELINES Effective Februa ry 2007 Page 10 of 26 APPENDIX. D: TECH . DES IG N SUMMARY As Revised February 2008 SECTION IX N/A APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4-Drainage Concept and Design Parameters I Continued (Page 4.2) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project Will project result in shifting runoff Identify gaining Basins or Watersheds and acres shifting: between Basins or 1------------------------------1 between Watersheds? X No Yes What design and mitigation is used to compensate for increased runoff from gaining basin or watershed? How will runoff from Project Area be mitigated to pre- development conditions? Select any or all of 1, 2 , and/or 3, and explain below. 1. __ With facility(ies) invo lving other development projects . 2 . __ Establishing features to serve overall Project Area . 3. __ On phase (or site) project basis within Project Area . 1. Shared facility (type & location of facility ; design drainage area served ; relationship to size of Project Area): (Attached Exhibit# ) 2. For Overall Project Area (type & lo cation of facilities): (Attached Exhibit# ) 3. By phase (or site) project: Describe planned mitigation measures for phases (or sites) in subsequent questions of this Part . C'· 'D Are aquatic echosystems proposed? __ No project( s )? __ Yes In which phase(s) or Q) en c Q) ffi >-Are other Best Management Practices for reducing stormwater pollutants proposed? 0:: __ No __ Yes Summarize type of BMP and extent of use: en c .Qi en Q) 0 Oz ro Jxl ~ <l'. If design of any runoff-handling facilities deviate from provisions of B-CS Technical Specifications , check type facility(ies) and explain in later quest ions. __ Detention elements __ Conduit elements __ Channel features __ Swales __ Ditches __ Inlets __ Valle y gutters __ Outfalls __ Culvert features __ Bridges Other STORMWATER DESIGN GUIDELINES Effective February 2007 Page 11 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.3) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project (continued) Will Project Area include bridge(s) or culvert(s)? X _N_o __ -_-_-~-Y-es--ld_e_n_t-ify_t_y_p_e_a_n_d __ --i general size and In which phase(s). If detention/retention serves (will serve) overall Project Area, describe how it relates to subject phase or site project (physical location , conveyance pathway(s), construction sequence): No detention required . Within Or Serving Subject Property (Phase, or Site) If property part of larger Project Area, is design in substantial conformance with earlier analysis and report for larger area? __ Yes No , then summarize the difference(s): Identify whether each of the types of drainage features listed below are included , extent of use , and general characteristics . C'-· "'O (lJ rJl gi (lJ rJl >- i I (lJ :'Q 0 rJl z ] xi 4: rJl .D. (lJ ~~;I ~ :. rJl (lJ .......... (lJ :J 0 ~ ciz ~~ I 4: Typical shape? I Surfaces? Steepest side slopes: I Usual front slopes: I Usual back slopes : Flow line slopes : least ___ _ Typical distance from travelway: typical ___ _ greatest ___ _ (Attac hed Exhibit# ) Are longitudinal culvert ends in compl ian ce with B-CS Standard Specifications? ___ Yes No , then explain: At intersections or otherwise, do valley gutters cross arterial or collector streets? _X _No __ Yes If yes explain: Are valley gutters proposed to cross any street away from an interse ctio n? _X _No __ Yes Explain: (number of locations?) STORMWATER DESIGN GUIDELINES Effective Febru ary 2007 Pag e 12 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -D ra i nage Conce~t and Design Paramete rs I Co ntinued (Page 4.4) Stormwater Management Concept (cont inued) W ithi n Or Servi ng Subject Property (Pha se, o r Si te) (co nt inued) Gutter li ne s lopes : Least 0 .60% Usual .2.0% -Greatest _ 6 .69% Are in lets recessed on arter ial and collector streets? x Yes No If "no ", -- -- identify where and why. W ill inlets capture 10-year design stormflow to prevent flooding of intersectio ns (arterial w ith arteria l or collector)? x Yes --No If no , expla in where and why not. C'-· -0 Q) Cf) W ill inlet size and placement prevent exceeding allowable water spread for 10-year :::J ._ design storm throughout site (or phase)? x Yes No If no , explain. 2 ----:; Ol -o -c -0 x (\l Q) Sag curves : Are inlets placed at low po in ts? Yes No Are inlets and .0 ~ ----._ ·-conduit sized to prevent 100-year stormflow from ponding at greater than 24 inches? :::J ...., (.) c x Yes No Exp lain "no " answers. 0 ..c (.) ----...., -·~ Cf) Q) Q) ._ u; Q) Will 100-yr stormflow be co nta ined in combination of ROW and buried conduit on ._ <( whole le ngth of al l streets? x Yes No If no , desc ri be where and why. -- Do designs for cu r b , gutter, a nd in lets comply with B-CS Technica l Specifications? x Yes --No If not , describe difference(s) and attach j ustification . Are any 12-inch latera ls used? _l$__ No --Yes Identi f y length(s) and where used . C'-· -0 Pipe runs betwee n system I Typica l _ 60' Longest 324' Q) Cf) Cf) Q) access points (feet): - :::J >- E Are junction boxes used at each bend? x Yes No If not , explain where i x l ---- and why . Cf) c (\l 0 ._ z -0 I E .8 Are downstream soffits at or be low up st ream soffits? Least amount that hydraulic Cf) grade lin e is below gutter li ne .!!!. Yes x No __ If not , explai n w here and why: (system-wide): 1.37' (10-year) STORMW ATER DES IGN GUIDELINES Effective February 2007 Page 13 of 26 AP P END IX. D: TECH . DES IGN SUMMARY As Rev ised Febru a ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.5) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase , or Site) (continued) (/) a.> u c .lB (/) c a.> ._ ~o ~ E ::::J ._ .!: .2 c . 0 .2 ~.!: E a.iE a.> ...... cu ~(/) (/) a.> c :"Q ·ro ~ -0 a. E w 0 a.> ...... ..c (/) (/) a.> "§ cu a. a.> (/) Describe watercourse(s), or system(s) receiving system discharge(s) below (include design discharge velo city, and angle between converg ing flow lines ). 1) Watercourse (or system), velocity , and angle? SD-1, 4 .3 fps, 60 deg. 2) Watercourse (or system), velocity, and angle? SD-3, 5.8 fps, 90 deg . 3) Waterco urse (or system), velocity, and angle? For each outfall above , what measures are taken to prevent eros ion or scour of receiving and all fa ci lities at juncture? 1) SD-1 -Rock rip-rap at end of headwall. 2) SD-3 -Rock rip-rap at end of headwall. c ~ 3) Are swale(s) situated along property lines between properties? __ No __ Yes Number of instances : For each instance answer the following questions . Surface treatments (i ncluding low-flow flumes if any): Flow line slopes (minimum and maximum): Outfall characteristics for each (velocity, convergent angle, & end treatment). Will 100-year design storm runoff be contained within easement(s) or platted drainage ROW in all instances? __ Yes __ No If "no " explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Pag e 14 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -D ra inage Concel;!t and Design Para m et ers I Co ntinued (Page 4.6) Stormwater Management Concept (continued) W ithin O r Se rvin g Subject Property (Phase , o r Site) (co nti nued) Are roads id e d itches used? No __ Yes If so , provide t he following : (/) Is 25-year flow contained with 6 inches of freeboard throughout? __ Yes No Q) --.r::. ~ Are top of banks separated from road shou lders 2 feet or more? __ Yes --No 0 Are all ditch sect ions trapezoida l and at least 1.5 feet d eep? Yes No Q) ---- 'O For any "no" answers provide location(s) and explai n: 'iii 'O C1l 0 et:: If conduit is beneath a swale , provide the follow i ng information (each instance). Instance 1 Describe general location, approximate length : (/) Q) Is 100-year design flow contained in conduiUswale combination? Yes No >--- -- lw If "no" explai n: c Space for 100-year storm flow? ROW Easement Width 0 C1l z u; Swale Surface type , minimu m Condu it T ype and size, minimum and maximum x i~ and maxi m um slopes : slopes , design sto rm : 0 C'-· :e (/) 'O a; 'O Inlets Describe how condui t is loaded (fro m streets/sto rm drains, inlets by type): C1l c >-c C1l c .r::. C1l u 0 c -Q) c Access Describe how maintenance access is provi ded (to swale, into co nd uit): 0.. 0 0 ~ -0 E :::i .Q2 .2 -c c I nstance 2 Describe genera l location , ap proximate le ngth : Q) 'O E Q) C1l (/) (/) :::i (/) Q) Is 100-year des ign flow co nta ined in co nd uiUswale co mb inatio n? Yes No c 'O 0 ·:;; -- -- ~ 0 If "no " explain: c a_ :0 Qi Space fo r 100-year storm flow? ROW Easement Width E Q) 0 .r::. u (/) Swale Surface type, minimum Co ndu it T ype an d size, m ini m um and maximum ...... Q) :::i ro and maximum slopes : slopes, design storm: 'O ..... c C1l 0 0.. u Q) In lets Describe how con d uit is loaded (from streets/sto rm drains, in lets by type): :Qi (/) c C1l .s 3: (/) Q) Access Describe how ma intenance access is provided (to swa le, into cond ui t): ~ STORMWATER DESIGN GUIDELINES Effective February 2007 Page 15 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.7) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase , or Site) (continued) c cu 0.. E x 0 w .!::: If "yes " provide the following information for each instance : Instance 1 Describe general location , approximate length , surfacing : 15 en Is 100-year design flow contained in swale? __ Yes __ No Is swale wholly c ~ within drainage ROW? __ Yes __ No Explain "no" answers : .; I f--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ u Access Describe how maintenance access is provide : ~ 0 -; z ]xi t--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Instance 2 Describe general location , approx imate length , surfacing : Q) ·~ <'-· ::::i en .0 c "'5 Q) o E £ ~ '§: cu Q) en ._ ~ 0 cu s ~ 0 = 0::: ~ .52 ('· :0 :::J 0.. "O c 35 cu 0 0.. 0.. x e w 0.. en en c Q) Q) >- I I 0.. E ~ J xi () Is 100-year design flow contai ned in swale? __ Yes __ No Is swale wholly w ithin drainage ROW? __ Yes __ No Explain "no " answers : Access Describe how maintenance access is provide d : Instance 3, 4, etc. If swales are used in more than two instances , attach sheet providing all above information for each instance . "New" channels: Will any area(s) of concentrated flow be channelized (deepe ned , widened, or straightened) or otherwise altered? __ No __ Yes If only slightly shaped , see "Swales" in this Part . If creating side banks, provide information below. Will design replicate natural channel? __ Yes __ No If "no", for each instance describe section shape & area , flow line slope (min. & max.), surfaces , and 100-year design flow , and amount of freeboard : Instance 1: Instance 2 : Instance 3 : STORMWATER DESIGN GUIDELINES Effective Februa ry 2007 Page 16 of 26 APPENDIX . D : TECH. DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -D rainage Conce~t and Design Parameters I Co nt inued (Page 4.8) Stormwater Management Concept (continued ) Wi t hin Or Se rvi ng Subj ec t Property (Phase , o r S ite ) (con t inued) Existing ch a nnels {small creeks}: Are t hese used ? --No --Yes If "ves" provide t he informatio n be low. Will small creeks and their floodp lains remain undistur bed? __ Yes No How many d isturbance instances? Ide ntify eac h planned location : For each location , describe length and general type of proposed improvement (including floodpla in c hanges): For each locatio n , describe section shape & area , flo w line slope (min . & max.), surfaces , and 100-year design flow. ~ "O Cll ::i .!: c Watercourses {and t ri butarie s}: Aside from fringe c hanges , are Regulatory 0 Watercourses proposed to be altered? __ No Yes Explain be low. ~ -- CJ) Submit ful l report describing proposed cha nges to Reg ul atory Watercourses. Address c Cll existing a nd proposed section size and s h ape , surfaces , alignment, flow line changes, E Cll length affected , and capacity, and provide full docu mentation of ana lysis procedures > 0 and data. Is full report sub m itted? Yes No If "no" expla in: I---a. E - Qi c c ct! A ll Proposed Channe l Work: For all proposed c hannel work , pro vide information .s::. u requested in next t hree boxes. If design is to replicate natural channel, identify locatio n and leng th here, and describe design in Special Design section of th is Part of Report. Will 100-year flow be contained with o ne foot of free board? Yes --No If -- not , identify location and exp lain : Are ROW /easements sized to contain channel and required main tenance space? Yes No If not, identify location(s) a nd exp lain : ---- STORMWATER DESIGN GUIDELINES Effective February 2007 Page 17 of 26 APP ENDIX . D: TECH. DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Dra i nage Conce~t and Design Parameters I Con ti nued (Page 4.9) Stormwater Management Concept (continued) W ith in Or Serving Subje ct Property (Phase , o r Site) (continued) How many facilities for subject property p ro j ect? For each provide info . below . For each dry-type fac il itiy: Fac ili ty 1 Faci lity 2 Acres served & des ign vo lu me + 10% 100-yr vol ume : free fl ow & plug ged Desig n disc harge (10 yr & 25 yr) Spi ll way crest at 100-yr WSE? __ yes --no __ yes --no Berms 6 inc hes a bov e pl ugged WS E? __ yes --no __ yes --no Explai n any "no " answers: (/) Cll >- I For eac h facility what is 25-yr design Q, and design of o utlet structure? 0 Faci lity 1: z xi Faci lity 2 : Do out lets and sp illways discharge into a pub li c faci lity in easement or ROW? C'-· Faci lity 1: __ Yes --No Fac ility 2: Yes No "O -- -- Cll If "no" ex pl a in : (/) 0 a. 0 ..... 0.. (/) For each , what is ve locity of 25-yr desig n discharge at ou tlet? & at s pil lwa y? Cll :E Facility 1: & Facility 2 : & -"(3 cu Are ene rgy d iss ipa ti o n measu res used? No Yes Descri be type and LL ---- c 0 location: ~ 2 Cll 0 Cll ~ For each , is spil lway su rface treatment ot her than co ncrete? Yes o r no , and describe: Facili ty 1: Facility 2: For each , wh at meas ures are taken to pre v e nt erosio n or scour at rece iving fac il ity? Facility 1: Facili ty 2: If berms are used gi v e heig hts , slop es an d s u rface treatments of sides. Facili ty 1: Faci lity 2 : STORMW AT ER DESIGN G U IDELIN ES Effecti ve Feb ruary 2007 Page 18 of 26 AP P EN DI X. D : TEC H. DESIGN S UMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t and Design Parameters l Co nt inued (Page 4 .10) Stormwater Manageme nt Concept (continued ) Wi t hin Or Servi ng Subj ect Property (Phas e, o r Site) (con ti nued) Do structures c omply with B-CS Specifications? Yes o r no , and exp lain if "no ": Faci lity 1; Cf) ~ =~ g Cll Facility 2: LL ::i c c:;:::; 0 c :;:::; 0 c (..) Cll- Q) For additio nal facil it ies prov ide all same informatio n on a sepa rate s heet. 0 Are parki ng areas to be used for detention? __ No --Yes What is maximum depth due to requi red des ign storm? Roadside Ditche s: W ill culverts serve access driveways at roadsi de ditches? --No --Yes If "yes ", provide information in next two boxes . Will 25-yr. flow pass without flowing over driveway in all cases? --Yes --No W ithout causing flowing or standing water on public roadway? --Yes --No Designs & materials comply with B-CS T echnica l Spec ifications? __ Yes --No Exp lain any "no " answers : C'· Cf) Ol .!: Cf) Are culverts paralle l to public roadway a lig nment? __ Yes No Explain : Cf) 0 -- ti Cf) Cll Cll ro >- > I ·c Creeks at Pr iva te Dri ve s : Do private driveways , drives , or streets cross drainage a. ro ways that serve Above-Project areas or are in public easements/ RO W ? 't:l 0 Cll z No Yes If "yes " provide informatio n below. ~x i How many instances ? Describe location a nd provide information below. Cll Locatio n 1: > :; (..) Cll Lo cation 2 : ..... <( Location 3: For each location enter value for: 1 2 3 Design year passing without toping t ravelway ? Water depth on travelway at 25-year fl ow? Wate r depth on travelway at 100-year f low? For mo re instances describe location and same info rmation on separate s heet. STORMWATER DESIGN GU IDELINES Effecti ve Feb rua ry 2007 Pa ge 19 of 26 APPEND IX . D : T ECH . DESIGN SUMMARY As Rev is ed Fe bruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continu ed (Page 4.1 1) Stormwater Management Concept (continued) W it hin Or Serv ing Subject Property (Phase , or Site) (con ti nued) Named Regulatort Watercourses {&Tributaries}: A re culverts pro pose d on these facilities? _x_ No __ Yes , then provid e full report documenting ass um ptions , criteria , ana lysis , com puter prog ra ms , a nd study findings that suppo rt proposed design(s). Is report prov ided? __ Yes --No If "no ", explain : -Arteria l or Major Collecto r Streets: Will cu lverts serve these types of roadways? (i) Q) No Yes How ma ny instances? Fo r each identify the .r:::. (f) ---- Q) location a nd provide the information belo w. (f) cu Insta nce 1: Q) ..... >-~ I~ Insta nce 2 : Insta nce 3 : c 0 0 76 Yes or No for the 100-year design flow : 1 2 3 z E x i ~ Headwater WSE 1 foot below lowest curb top? Sprea d of headwater w ithin RO W or easeme nt? E C'-· CIJ Is velo c ity li m ite d pe r conditions (T able C-1 1 )? (f) (f) g1-o Ex plai n any "no " answer(s ): ·-c ~ CIJ 0 c ..... 0 (.) :.=: >-CIJ CIJ (.) ~ .Q "O Q) CIJ .c M ino r Coll ect o r or Local Streets : Will culverts serve these types of streets? 0 ·-.......... (.) (.) x No Yes How many in stances ? fo r each identify the ·-(f) -Q) -----§ "O locat ion a nd prov ide t he information be low: 0.. Q) _. 0.. Instance 1: CIJ .c "O >-Instance 2 : Q) c ~ CIJ -In sta nce 3 : (f) 0 t (f) Q) Q) Fo r ea c h in stance enter va lue , or "yes " I "no" for: ~ (.) 1 2 3 ::Jc (.) CIJ Design yr. headwater WSE 1 ft . be low cu rb top? Q) ti ..... c <t: ·-100-y r . max . dept h at street crow n 2 feet or less? Q) ..... 0 Prod uct of veloc ity (fps) & dept h at crow n (ft)=? E ..... 0 Is veloci ty limited pe r conditions (Table C-1 1 )? ::::, Lim it of down st ream analys is (feet)? Explai n an y "no " ans wers : STORMW ATE R DES IGN GU IDELINES Effe cti ve Februa ry 2007 Page 20 of 26 A PPE NDI X. D: TEC H. D ESI GN S UMMA RY As Revi sed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -D rainage Conce~t and Design Parameters I Continued (Page 4.12) Stormwater Management Con cept (continued) Wi th in Or Servin g Subject Property (Phase , o r Site ) (continued) A ll Proposed Culverts : For all proposed culvert faci lit ies (except driveway/roadside ditch intersects) provide information requested in next eight boxes. Do culverts and travelways intersect at 90 degrees? Yes No If not , ---- identify location(s) and intersect angle(s), and justify the design(s): Does drai nage way a lignment change wit hin o r near li m its of culvert and surfaced approaches thereto? __ No --Yes If "yes " ide nt ify location(s), describe change(s), and justification : Are flumes or co nduit to discharge into cu lvert barre l(s)? __ No __ Yes If yes, identify location(s) and provide justification : -Are flumes or conduit to discharge into or near surfaced approaches to cu lvert ends? "O Cl> No Yes If "yes " identify locat ion(s), describe outfall design treatment(s): ::::l c ---- E 0 ~ (/) t:: Cl> -2'. ::::l Is scour/erosion protection provided to ensure long term stability of culvert structural u components, and s urfacing at culvert ends? --Yes --No If "no" Identify locations and provide justification(s): Wil l 100-yr flow and spread of backwater be fully co ntained in street ROW , and/or drainage easements/ ROW? __ Yes --No if not, why not? Do appreciable hydraulic effects of any cu lvert extend downstream or upstream to neighboring land(s) not encompassed in subject pro perty? No --Yes If -- "yes " describe location(s) and mitigation measures : Are all cu lvert desig ns and materials in compl iance with B-CS T ech. Specifications? Yes --No If not, explain in S pecial Design Section of t his Part . -- STORMWATER DESIGN GUIDELINES Effective February 2007 Page 21 of 26 AP P ENDIX. D : TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .13) Stormwater Management Concept (continued) W ith in O r Serving Subject Property (Phase , or Site) (continued) Is a bridge in cluded in plans fo r s ubject pro perty proj ect ? x No Yes ---- If "yes " pro vide the following info rmation . Name(s) and functio na l c lass ification of t he ro ad way(s)? What d ra in age way(s) is to be crossed? ~ CJ) Q) Ol ""O ·c en A full rep o rt support ing all aspects of the pro posed bri dge(s) (structura l, geotechnica l, hydrolog ic , and hydrau li c facto rs) m ust accom pa ny t hi s su m mary re port. Is the report prov ided? --Yes --No If "no " explain : Is a Storm water Provide a gene ral de scriptio n of planned tec hn iques: £ Pollutio n Preve ntion An erosion control drawing has been included with (ii Plan (SW 3P) the plans. The SW3P wi ll be the responsibility of :J a estab li s hed for .... project co nstruct ion? the contractor . Q) -ro x s --No --Yes Special Designs - No n-Tradit ional Method s A re a ny non -trad iti on al methods (aquatic echosyst em s, wetland-type dete nt io n, natu ral stream rep li cation , BM Ps for wate r quality, etc .) proposed for any aspect of subject property project? x No Yes If "yes " list genera l type and location be low. ---- Pro vid e full re port about the proposed special des ig n(s) inclu d ing rationale for use a nd expected benefits . Report m ust substantiate that stormwater m anageme nt objectives wil l not be comprom ised , and that mai ntenance cost wi ll not exceed tho se of tra di ti o nal design so lutio n(s). Is report provided? --Yes --No If "no" exp lai n: STORMW AT ER DE S IG N GUI DE LI N ES Effective February 2007 Page 22 of 26 A PP ENDI X. D : TEC H. DESI GN SUMMARY As Revised Feb ruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .14) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Special Designs -Deviation From 8-CS Technical Specifications If any design(s) or materia l(s) of traditional runoff-handling facilities deviate from provisions of B-CS Technical Specifications , check type facility(ies) and explain by specific detail element. --Detention elements __ Drain system elements --Channel features Culvert features Swales Ditches Inlets Outfalls -- ---- ---- __ Valley gutters __ Bridges (explain in bridge report) In table below briefly identify specific element , justification for deviation(s). Specific Detail Element Justification for Deviation (attach additional sheets if needed) 1) 2) 3) 4) 5) Have elements been coordinated with the City Engineer or her/h is designee? For each item above provide "yes " or "no", action date , and staff name : 1) 2) 3) 4) 5) Design Parameters Hydrology Is a map(s) showing all Design Drainage Areas provided? x Yes No ---- Briefly summarize the range of applications made of the Rational Formula : Determination of flow rates for inlets and pipes along the roadway. What is the size and location of largest Design Drainage Area to which the Rational Formula has been applied? 70 -acres Location (or identifier): Drainage Area Ex STORMWATER DESIGN GUIDELINES Effective Februa ry 2007 Page 23 of 26 APPENDIX. D : TECH. DES IGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -D rainage Conce~t and Design Parameters I Co ntinued (Page 4 .15) Design Paramete rs (continued) Hyd ro l ogy (cont inued) In m aking determ inations for time of concentration , was segme nt analysis used? x No Yes In approximate ly what percent of De si g n D ra inage A reas? % As to intensity-d u ration-frequency and rain depth criteria for determ ining r unoff flows , were any criteria other tha n those p ro vided in t hese Guidelines used? _ x -No --Yes If "yes " ide ntify type of data , source(s), and w here app li ed : For each of the sto rmwater management features listed below identify the storm return freq uencies (year) analyzed (or checked), and t hat used as th e basis for design . Feature An alysis Year(s) Des ign Year Storm drain system for arte rial and co ll ector streets 10, 100 10 , 100 Storm drain system for local streets 10, 100 10 , 100 Ope n channels N/A N/A Swa le/buried conduit comb ination in lieu of cha nnel N/A N/A Sw ales N/A N/A Roa dside ditches and culverts serving them N/A N/A Detention faci li t ies : spil lway crest and its outfa ll N/A N/A Detention faci lit ies : outlet a nd conveyance structure(s ) N/A N/A Detention facilities : vo lume when outlet plugged N/A N/A Culverts serving private drives or streets N/A N/A Cu lverts serving public roadways N/A N/A Bridges : provide in bridge report . N/A N/A Hydraulics W hat is the range of design flow velocities as outlined below? Design flow velocities ; H ighest (feet per second) Lowest (feet per second) Streets a nd Stor m Drai n Sys tem s Roughness coeffi cie nts used: For condu it type(s) RCP STORMWATER DESIGN GUIDELINES Effe ctive February 2007 Gutters Conduit Culverts Swales Channels 6.58 11.2 ------------------ 0.00 3.24 ------------------ Provide the summary information o utli ned below : Fo r street g utte rs : _ HOPE Page 24 of 26 0.018 Coefficients : 0.014 0 .014 - A PP ENDI X . D : TECH . DESIGN SUMMARY As Revised Februarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Cont inu ed (Page 4.16) Design Parame ters (continued) Hyd raulics (c on tin ued ) St reet a nd Sto rm Dra in System s (continued) For the following , are assumptions other than allowable per Gu idelines? Inlet coefficients? x No Yes Head and friction losses x No Yes -------- Explain any "yes " answer: In conduit is velocity generally increased in the downstream di rection? x Yes No ---- Are elevation drops provided at in lets , manholes , and junction boxes? x Yes No ---- Exp lain any "no " answers : Are hydraul ic gra de lines ca lculated and shown for design stor m ? x Yes No ---- For 100-year flow conditio ns? x Yes No Exp lain any "no " answers: ---- What tailwater conditions were assumed at outfall point(s) of t he storm drai n system? Identify eac h location and expla in: 100 year water surface elevations in existing creeks . Open Ch a nnel s If a HEC analysis is uti lized , does it follow Sec Vl.F .5.a? ~Yes __ No Outside of straig ht sections , is flow regime within li mits of su b-critical flow? ~Yes __ No If "no " list locatio ns and exp lain : Culve rts If pla n sheets do not prov ide the fo ll ow ing for eac h culvert , describe it here . For each design d ischarge , will ope ration be outl et (barrel) control or inlet control? Entrance , friction and exit losses : Bridg es Prov id e all in bridge report STORMW ATER DESIGN GU IDELINES Effective February 2007 Page 25 of 26 AP P ENDIX. D : TECH. DES IGN SUMMARY As Revi sed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Dra i nage Conce~t and Design Parameters I Co ntinued (Page 4.17) Design Parameters (continued) Computer Software What com puter software has been used in th e analysis and assessm ent of storm water management needs and/or the devel opment of facility designs prop osed for s ubj e ct property project? List them below , being sure to identify the software na m e and version , t he date of the version , any applicab le patches and the publ isher Microsoft Excel Spreadsheet Part 5 -Plans and S~ecifications Requirements for submittal of co nstruction drawings and specifications do not differ due to use of a Technical Design Summary Report . See Section I l l, Paragraph C3 . Part 6 -Conclusions and Attestation Conclus ions Add any concluding information here: Attestation Provide attestati on to t he accuracy and co mp leteness of the fore goin g 6 Parts of this Technical Design S ummary D rai nage Report by sign ing and sea li ng below. "This report (plan) for the drainage design of the development named in Part B was prepared by me (or under my supervision) in accordance with provisions of th e Bryan/Co llege Station Unified Drainage Design Guidelines for the owners of the property. All licenses and permits required by any and all state and federal regulatory agencies for the proposed drainage imptvements have been issued or fall under applicable genera l permits." _... _,,,,,~ 1 £1 (Affix Seal) ..=-=--~~.9.f,Zr:-\\\\ I rl. L. .~ '~ ,;-~~ .... *' ·.:z.,. ... Ii, I .JI'*: \ Li n.kJ Professional Engineer f .. :.::.!'}.!. ........ h'!!ft..°;~.1~ State of Texas PE No . q q7l/5' STORMWATER DESIGN GU IDELINES Effective February 2007 Page 26 of 26 )_.kFFt:RY L. ROBERTSON/ /"'':·······• ................... : 1,-i-... 94745 /I\...~ •• ~ ·.,'-/1 ~ -.:~ ••• c;v _, APPENDIX . D : TECH . DESIGN SUMMARY As Revised Februarv 2008 < s: s: w c 0 0 Cl: w ...J ...J ...J < < a. < LL. LL. w w 0 j:: I-c c Cl: ...J z < z z (!) < w z w u :3 i= :3 < ...J > w :::!: ...J z < W< c w < Cl:(!) Cl: ...J ~ (ij I-cw > I-Wz w ...J 8 ~~ w < e i:; ~ >< c Cl: a. 0 LL. NO. AC. 0.4 0.55 0.9 ft. ft. Ex 70.40 0.00 70.40 0.00 38.72 100.0 1.0 Prop 29.80 0.00 29.80 0.00 16.39 100.0 1.0 1.3 2.66 0.00 2.66 0.00 1.46 140.0 2.0 1.4 0.66 0.00 0.66 0.00 0.36 135.0 2.0 1.5 0.00 0.00 0.00 0.00 0.00 136.0 3.0 1.6 1.39 0.00 1.39 0.00 0.76 136.0 3.0 1.6B 0.00 0.00 0.00 0.00 0.00 137.0 4.0 4.1 0.92 0.00 0.92 0.00 0.51 140.0 7.0 4.2 0.60 0.00 0.60 0.00 0.33 140.0 7.0 4.3 0.59 0.00 0.59 0.00 0.32 141.0 8.0 4.4 0.30 0.00 0.30 0.00 0.17 138.0 5.0 4.5 5.96 0.00 5.96 0.00 3.28 285.0 6.0 8.1 2.05 0.00 2.05 0.00 1.13 1.0 1.0 3.1 0.82 0.00 0.82 0.00 0.45 285.0 4.0 3.2 2.40 0.00 2.40 0.00 1.32 15.0 3.0 3.3 0.39 0.00 0.39 0.00 0.21 185.0 4.0 3.4 0.46 0.00 0.46 0.00 0.25 185.0 4.0 3.5 0.53 0.00 0.53 000 0.29 186.0 5.0 5.1 2.60 0.00 2.60 0.00 1.43 187.0 6.0 6.2 1.79 0.00 1.79 0.00 0.98 188.0 7.0 7.1 2.69 0.00 2.69 0.00 1.48 189.0 8.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Pebble Creek 7D s: s: 0 0 ...J ...J LL. LL. ~ Cl: J: Cl: <..> w I-w u I-<..> ~ (!) ~ ...J 0 I-u ::i z :::> ...J ...J w (!) ~ (!) ;;_ ~ ftj en a ('j u :::> "' "' ft. ft. ft/s min min In/Hr cfs In/Hr cfs 1900.0 15.0 1.6 20.4 20.4 4.39 169.8 5.4 210.1 1900.0 15.0 1.6 20.4 20.4 4.39 71.9 5.4 88.9 180.0 1.8 1.2 4.3 10.0 6.33 9.3 7.7 11.3 450.0 2.0 1.2 8.3 10.0 6.33 2.3 7.7 2.8 451.0 3.0 1.4 6.8 10.0 6.33 0.0 7.7 0.0 451.0 3.0 1.4 6.8 10.0 6.33 4.8 7.7 5.9 452.0 4.0 1.7 5.9 10.0 6.33 0.0 7.7 0.0 455.0 7.0 2.2 4.6 10.0 6.33 3.2 7.7 3.9 455.0 7.0 2.2 4.6 10.0 6.33 2.1 7.7 2.5 456.0 8.0 2.3 4.3 10.0 6.33 2.1 7.7 2.5 453.0 5.0 1.8 5.3 10.0 6.33 1.0 7.7 1.3 110.0 2.0 1.2 5.3 10.0 6.33 20.7 7.7 25.2 50.0 5.0 6.3 0.1 10.0 6.33 7.1 7.7 8.7 453.0 4.0 1.3 9.7 10.0 6.33 2.9 7.7 3.5 415.0 3.0 1.7 4.2 10.0 6.33 8.4 7.7 10.2 285.0 2.0 1.3 5.8 10.0 6.33 1.4 7.7 1.7 302.0 2.0 1.3 6.1 10.0 6.33 1.6 7.7 1.9 303.0 3.0 1.6 5.2 10.0 6.33 1.8 7.7 2.2 304.0 4.0 1.7 4.7 10.0 6.33 9.0 7.7 11.0 305.0 5.0 1.9 4.3 10.0 6.33 6.2 7.7 7.6 306.0 6.0 2.1 4.0 10.0 6.33 9.4 7.7 11.4 0 "' 0 a "' a ~ "' In/Hr cfs In/Hr cfs 6.2 238.1 7.1 273.1 6.2 100.8 7.1 115.6 8.6 12.6 9.9 14.4 8.6 3.1 9.9 3.6 8.6 0.0 9.9 0.0 8.6 6.6 9.9 7.5 8.6 0.0 9.9 0.0 8.6 4.4 9.9 5.0 8.6 2.8 9.9 3.3 8.6 2.8 9.9 3.2 8.6 1.4 9.9 1.6 8.6 28.3 9.9 32.3 8.6 9.7 9.9 11.1 8.6 3.9 9.9 4.4 8.6 11.4 9.9 13.0 8.6 1.9 9.9 2.1 8.6 2.2 9.9 2.5 8.6 2.5 9.9 2.9 8.6 12.3 9.9 14.1 8.6 8.5 9.9 9.7 8.6 12.8 9.9 14.6 0 0 "' "' 0 In/Hr cfs 8.0 309.9 8.0 131.2 11.1 16.3 11.1 4.0 11.1 0.0 11.1 8.5 11.1 0.0 11.1 5.6 11.1 3.7 11.1 3.6 11.1 1.8 11.1 36.5 11.1 12.6 11.1 5.0 11.1 14.7 11.1 2.4 11.1 2.8 11.1 3.2 11.1 15.9 11.1 11.0 11.1 16.5 0 0 ~ In/Hr 9.0 9.0 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 0 0 a cfs 350.1 148.2 18.3 4.5 0.0 9.6 0.0 6.3 4.1 4.1 2.1 41.1 14.1 5.6 16.5 2.7 3.2 3.7 17.9 12.3 18.5 11/10/2014 dra.xls Exhibit C-1 0 ...... ~ ~ i.. ~ ~ ~ ~ = ~ i.. i.. ;;.. ....i " . < ~ 0 -<o ~ ~ ~ -~ ~z 01! eJJ i.. t' 0 0 ~ ~ ~ ~< c = = ~ i.. i.. ·-;;.... ~ -; ~ ·; ~ u -~~ ;;.. i.. i.. 0 0 o~ ~ ..-1 0 ~ '-' cfs 1.3 4 .5 12.6 0.0 12.6 1.4 1.6 3.1 0.0 3.1 1 .6 na 6.6 11.4 18.0 4 .1 4.3 4.4 0.0 4.4 4 .2 4 .3 2.8 0.0 2.8 4 .3 4.4 2.8 0.0 2.8 4.4 4 .5 1.4 0 .0 1.4 4.5 1.6 28.3 6.5 34.8 8 .1 4 .5 9.7 0.0 9.7 3 .1 5.1 3 .9 0.0 3.9 3 .2 3.3 11.4 0.0 11.4 3 .3 3.4 1.9 0 .0 1.9 3.4 3.5 2.2 0.0 2.2 3.5 na 2.5 0 .0 2.5 5 .1 6.2 12.3 0.0 12 .3 6 .2 7.L 8.5 0.0 8 .5 7 .1 na 12.8 0.0 12.8 EXHIBIT C-2 (10 Year) INLET COMPUTATIONS Pebble Creek 70 -~ .Cl = -....i "O -~ ~ 0 0 z -~ --; ~ ~ -i.. 0 -= ~ DESCRIPTION C'1 ....i 38 1.3 12.6 Recessed Inl et on Grade 38 1.4 3.1 Recessed Inl et on Grade 38 1.6 18.0 Recessed Low Point Inlet 27 4.1 4.4 Recessed Low Point Inlet 27 4.2 2.8 Recessed Low Point Inlet 27 4.3 2.8 Recessed Inl et o n Grade 27 4.4 1.4 Recessed Low Point Inlet 38 4.5 34.8 Recessed Low Point Inlet 27 8.1 9.7 Recessed Low Point Inlet 27 3 .1 3.9 Recessed Low Point Inlet 27 3.2 11.4 Recessed Low Point Inlet 27 3.3 1.9 Recessed Low Point Inlet 27 3.4 2.2 Recessed Low Point Inlet 27 3 .5 2 .5 Recessed Low Point Inl et 27 5 .1 12 .3 Recessed Low Point Inlet 27 6.2 8 .5 Recessed Low Point Inlet 27 7 .1 12.8 Recessed Low Point Inl et ~ ~ i.. ~ ~ ~ u cfs 0 .62 0.62 2.33 2.33 2.33 0.62 2 .33 2 .33 2.33 2.33 2.33 2.33 2.33 2.33 2.33 2.33 2.33 i.. ~ "O ;;.. ~ 0 "O "O ·;;:: t' O' 0 i.. ~ i.. ~ ~ p. u ~ ...:l 0 C urb Inl et ft ft 20.44 IO 6.45 5.07 10 0.00 7.72 10 0.00 1.87 10 0.00 1.22 10 0.00 4.53 10 0.00 0.61 5 0.00 14 .89 10 11.41 4.17 5 0.00 1.67 lO 0.00 4.88 LO 0.00 0 .79 10 0 .00 0.94 10 0 .00 1.08 IO 0 .00 5.29 lO 0.00 3.64 LO 0.00 5.47 LO 0.00 .Cl ~ "O -~ c. 00 i.. ~ ·:; ~ i.. O' ~ ~ "O ~ ~ ~ "O ~ ~ = ~ 0 i.. u < p. Grate Inlet ft cfs sq-ft "O ~ "O ·;;:: 0 i.. ~ ~ ~ i.. < sq-ft 11/10/2014 dra .xls Exh ibit C-2 Cl -~ ~ ~ "" Q.I Q.I Q.I = .c ~ "" < "" ;;. Jo-4 -~ . ~ -0 -"O <o "" ~ Q.I Q.I ~ ~ ~ ~~ eJl eJl Q.I c Cl 0 ~ ~ ~ e:;::: = "" -"" ~ -; Q.I Q.I ·; ·; 0 u -Q.I ~~ ;;. "" "" 0 0 "" -o~ ~ ..-; Cl r--rJJ .._, cfs 1 .3 4.5 18.3 0.0 18.3 38 1 .4 1.6 4 .5 0.0 4 .5 38 1 .6 na 9.6 32.3 4 1.9 38 4 .1 4.3 6.3 0 .0 6.3 27 4 .2 4.3 4.1 0 .0 4.1 27 4 .3 4.4 4.1 0.0 4.1 27 4.4 4.5 2.1 0.0 2.1 2 7 4 .5 1.6 41.1 14.6 55 .7 38 8 .1 4 .5 14.1 0.0 14 .1 27 3 .1 5.1 5.6 0.0 5.6 27 3 .2 3 .3 16.5 0.0 16.5 27 3 .3 3.4 2.7 0.0 2.7 27 3 .4 3.5 3.2 0.0 3.2 27 3 .5 na 3.7 0.0 3.7 27 5 .1 6.2 17.9 0.0 17 .9 27 6 .2 7 .1 12.3 0.0 12.3 27 7 .1 na 18.5 0.0 18.5 27 EXHIBIT C-2 (100 Year) INLET COMPUTATIONS Pebble Creek 70 --Q.I Q.I Q.I "" = -Jo-4 rJJ --"O ~ ~ Q.I 0 Cl Q "" .._, z ·= Q.I --; O"' Q., Q.I -Q.I 0 = 0 DESCRIPTIO N ~ 00 r--Jo-4 12.1% 1.3 18.3 Recessed Inl et o n G rade 0 .7 % 1.4 4.5 Recessed Inl et o n G rade 63 .3% 1.6 4 1.9 R ecessed Low Po int Inl et 0.7% 4.1 6.3 Recessed Low Po int Inl et 0.3% 4.2 4.1 Recessed Low Po int Inl et 0.3% 4.3 4 .1 Recessed Inl et o n Grade 0.1% 4.4 2.1 Recessed Low Po in t In let 111.8% 4 .5 55.7 Recessed Low Po int In let 3.3% 8.1 14 .1 Recessed Low Po in t Inl et 0.5% 3 .1 5.6 Recessed Low Po in t Inl et 4.5% 3.2 16.5 Recessed Low Po in t Inl et 0.1% 3.3 2.7 Recessed Low Poi nt Inl et 0.2% 3.4 3.2 Recessed Low Po in t Inl et 0 .2% 3.5 3.7 Recessed Low Po int In let 5 .2% 5 .1 17.9 Recessed Low Po int In let 2 .5% 6.2 12 .3 Recessed Low Po int In let 5.6% 7 .1 18.5 Recessed Low Po int ln le1 ~ ~ "" Q.I ~ ~ u cfs 0.62 0.62 2.33 2.33 2.33 0.62 2 .33 2.33 2.33 2.33 2.33 2 .33 2.33 2.33 2.33 2 .33 2 .33 "" Q.I "O ;;. Q.I 0 "O "O ·;: c O"' 0 "" Q.I "" ~ ~ ~ u .j .j Cl C u rb I n let ft ft 29.66 10 12.15 7 .36 10 0.00 17 .95 10 18.55 2.72 10 0 .00 1.7 7 10 0 .00 6.58 10 0 .00 0.89 5 0.00 23.84 10 32.32 6.05 5 2 .45 2 .4 2 10 0.00 7.08 10 0.00 1.1 5 10 0 .00 1.36 10 0.00 1.5 6 10 0 .00 7.67 10 0 .00 5.28 10 0.00 7.94 10 0.00 "O .c ~ -Q.I "" Q., czi ·-Q.I = ~ "" O"' Q.I Q.I "O ~ ~ Q.I "O ~ ~ = Q.I 0 "" ~ u < Grate Inlet ft cfs sq-ft "O Q.I "O ·;: 0 "" ~ ~ Q.I "" < s q -ft 11/1 0 /2014 dra .xls E xhib it C -2 1 EXHIBIT C-3 (10 Year Storm) PIPE SIZE CALCULATIONS Pebble Creek 70 ~i r--,-r Tl -T 1 I ' I I I I : I c I I ' t:lJI I I I ·-c: I I .. I ! I"\ ·-41 I 41 i I E """ ~ c.. l c.. · · 111 l i I ~ bJ) i -k I 0. I '--I <ti'. I ... "O Q I ~1 ;.,-l 0 : :. "' . z ~ I u i .s ~ -I c..I : I (;) I : = 1_' .: I "O j: I'--, I , I 1J) "' ~ ·-' : '--; f-C: ... C:-f--1-1 :I 41 Q.. ,,41 IC: I IC:-• l;,;l ... :t z I <ti'. I c: . ..., ti ·• ._ -I .2 • : Q : ~ f-:5 I -I f-: -~ ~ ~ :I ~ I 0 I ~ ! t: I ..i ..J : z : > @) Q S2 z I 0 I 0 ! '"' ~ c: .2 :0 .2 I 0 I .2 I ·~ ~ ~ : ..i i E '"' ~ I ..i -I ,_ er-+_J:oJ I -"--"'-t' _< r.. ~-~-r.. I rzi > ~~---~--I __ 1:'.____ --f~ # # !Ac. ,min lvr 4crs cfs I# lcfs 1% I" fps I' :min f min ' ' 1.3 I 1.4 I 1.51 10.01 1 o I 12.61 16.41 1 I 16.41 0.521 241 5.21 43 1.4 I 1.5 I 1.81 10.11 10 I 15.71 20.411 I 20.41 0.811 241 6.51 226 1.5 I 1.6 I 1.81 10.71 1 o I 15.31 19.91 1 I 19.91 0.771 241 6.31 201 1.6 I out I 8.31 11.51 1 o I 67.81 67.81 1 I 67.81 0.55lbox I 8.51 349 4.1 I 4.2 I 0.51 10.01 1 O I 4.41 5.71 1 I 5.71 0.291 181 3.21 32 4.2 I 4.3 I 0.81 10.21 1 o I 7.21 9.31 1 I 9.31 0.781 181 5.31 42 4.3 I 4.4 I 1.21 10.31 10 I 9.91 12.911 I 12.91 1.491 181 7.31 251 4.4 I 4.45 I 2.51 10.91 1 O I 20.41 20.41 1 I 20.41 0.251 301 4.21 30 4.45 I 4.5 I 2.51 11.0I 1 o I 20.41 20.41 1 I 20.41 0.241 301 4.11 97 4.5 I 1.6 I 5. 71 11.41 1 o I 46.81 46.81 1 I 46.81 1.301 301 9.51 42 8.1 I 4.4 I 1.11 10.0I 10 I 9.71 12.711 I 12.71 0.311 241 4.01 32 3.1 I 3.2 I 0.51 10.01 1 o I 3.91 5.1 I 1 I 5.11 0.231 181 2.91 31 3.2 I 3.3 I 1.81 10.21 1.0 I 15.21 19. 71 1 I 19. 71 0. 761 241 6.31 305 3.3 I 3.4 I 3.41 11.01 1 o I 28.31 28.31 1 I 28.31 0.471 301 5.81 339 3.4 I 3.5 I 3.71 12.0I 1 o I 29.31 29.31 1 I 29.31 0.51 I 301 6.01 305 3.5 I out I 5.41 12.81 10 I 42.11 42.111 I 42.11 1.051 301 8.61 193 5.1 I 3.3 I 1.41 10.01 10 I 12.31 16.111 I 16.11 0.501 241 5.11 31 6.2 I 6.4 I 1.01 10.01 1 o I 8.51 11 11 1 I 11.1 I 0.241 241 3.51 31 7.1 I 3.5 I 1.51 10.0I 10 I 12.81 16.611 I 16.61 0.541 241 5.31 36 •includes 33% Flow Increase for pipe sizes <27" dia. ••See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) 0.14 0.58 0.53 0.69 0.17 0.13 0.57 0.12 0.39 0.07 0.13 0.18 0.81 0.98 0.85 0.37 0.10 0.15 0.11 10.14 10.72 11.25 12.141 41 2 10.17 10.30 10.87 10.99 11.38 11.46 10.13 10.18 10.99 11.97 12.82 13.20 10.10 10.15 10.11 11/10/2014 dra.xls Exhibit C-3 EXHIBIT C-3 (100 Year Storm) PIPE SIZE CALCULATIONS Pebble Creek 70 I i I : i : T I I I I : ! : : I I &, I I : : : I I "<ii I c .. I i i i I I C1J t)ll ~ I I I I I ;; """"4 ~ Q. Q. ! I I I CIJ I "' '1 ,.... ·-4,) 4,) : ! : I I 0 E-< I Z ~ o ~ ~ -2 ! ! : ! E z w u I -I -.!:-:... (/] I i : = l ·-"O IE-..J ..;ii (/] ~ ~ Q. 4,) c I i lE-<I E-c :C::c: E-Z < i c ._, ti -• ._ Q. .:2 i i . l e,, I 4l W E-W I -E-I -~ "O ~ ::: ~ it ~ ti I w i ..J : z I > @) Q iS2 ..J 0 0 I "' = 0 ._, 0 • 0 ·-I N i ,_, : ,_, I f<: -w Z1 ,u 4" c_-o_o_I:..,_,,..., .... ,-u;::: ,.----1----E---,.J::-~ E-Q ;:;i ~--< r.. z -~--r.;-~-~--~~+~--~--t'-E-~~ # # 1Ac. !min yr cfs cfs # cfs 1% I" !fps :' !min min ' ' 1.3 I 1.4 I 1.51 10.011 oo I 18.31 23.81 1 I 23.81 1.101 241 7.61 431 0.091 10.09 1.4 I 1.5 I 1.81 10.11 1 oo I 22.71 29.61 1 I 29.61 1. 701 241 9.41 2261 0.401 10.54 1.5 I 1.6 I 1.81 10.711 oo I 22.21 28.91 1 I 28.91 1.621 241 9.21 201 I 0.361 11.08 1.6 I out I 8.31 11.511001 98.61 98.611 I 98.61 1.16lbox I 12.31 3491 0.471 11.93 4.1 I 4.2 I 0.51 10.011001 6.31 8.211 I 8.21 0.611 181 4.71 321 0.111 10.11 4.2 I 4.3 I 0.81 10.211 oo I 10.41 13.51 1 I 13.51 1.651 181 7.61 421 0.091 10.26 4.3 I 4.4 I 1.21 10.311001 14.41 18.711 I 18.71 3.141 181 10.61 2511 0.401 10.69 4.4 I 4.45 I 2.51 10.911001 29.71 29.711 I 29.71 0.521 301 6.01 301 0.081 10.96 4.45 I 4.5 I 2.51 11.011 oo I 29.61 29.61 1 I 29.61 0.521 301 6.01 971 0.271 11.26 4.5 I 1.6 I 5.71 11.411001 68.11 68.111 I 68.11 2.741 301 13.91 421 0.051 11.43 8.1 I 4.4 I 1.11 10.011001 14.11 18.411 I 18.41 0.651 241 5.81 321 0.091 10.09 3.1 I 3.2 I 0.51 10.011001 5.61 7.311 I 7.31 0.491 181 4.21 311 0.121 10.12 3.2 I 3.3 I 1.81 10.21100 I 22.0I 28.61 1 I 28.61 1.591 241 9.11 3051 0.561 10.74 3.3 I 3.4 I 3.41 11.011001 41.21 41.211 I 41.21 1.001 301 8.41 3391 0.671 11.66 3.4 I 3.5 I 3. 71 12.011 oo I 42. 71 42. 71 1 I 42. 71 1.081 301 8. 71 3051 0.591 12.55 3.5 I out I 5.41 12.811001 61.41 61.411 I 61.41 2.231 301 12.51 1931 0.261 13.08 5.1 I 3.3 I 1.41 10.01100 I 17.91 23.31 1 I 23.31 1.051 241 7.41 31 I 0.071 10.07 6.2 I 6.4 I 1.01 10.011001 12.31 16.0l 1 I 16.0I 0.501 241 5.11 311 0.101 10.10 7.1 I 3.5 I 1.51 10.011001 18.51 24111 I 24.11 1.131 241 7.71 361 0.081 10.08 •includes 33% Flow Increase for pipe sizes <27" dia. ••See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) 41 2 11/10/2014 dra.xls Exhibit C-3 FL I FL I Begin I Inlets Pipe From I To Un""r I Lower WS Elev 010 Dia 1.6 out 223.19 221.45 223.45 67.81 box 1.5 1.6 226.11 223.89 225.48 15.32 24 1.4 1.5 234.35 226.79 227.89 15.68 24 1.3 1.4 235.2 234.85 235.96 12.63 24 3.5 out 238.95 235.29 237.79 42.15 30 3.4 3.5 240.71 239 241.33 29.32 30 3.3 3.4 243.26 240.81 242.97 28.34 30 3.2 3.3 245.72 243.81 245.16 15.18 24 3.1 3.2 246.49 246.22 247.67 3.89 18 4.5 1.6 223.53 223.29 225.81 46.83 30 4.45 4.5 224.16 223.63 226.40 20.35 30 4.4 4.45 224.49 224.26 226.70 20.45 30 4.3 4.4 234.36 225.51 227.25 9.90 18 4.2 4.3 237.7 235.46 235.24 7.17 18 4.1 4.2 238.11 237.8 238.98 4.37 18 5.1 3.3 243.73 243.36 245.36 12.35 24 6.2 3.4 241.63 241.37 242.97 8.50 24 7.1 3.5 239.26 239 241.33 12.77 24 8.1 4.4 225.85 225.51 227 25 9.74 24 EXHIBIT C-4 HYDRAULIC GRADE LINE -10Yr. Storm Pebble Creek 70 I Noonal Normal Depth Starting Depth Velocity Velocity Lenoth Sf Pipe S LOY1er WS Elev U"""r Hf In Out 349 0.55% 0.50% 223.45 223.45 225.19 1.91 7.53 8.48 201 0.77% 1.09% 225.09 225.48 227.31 1.55 11.47 7.53 226 0.81% 3.25% 227.69 227.89 235.25 1.82 6.33 11.47 43 0.52% 0.78% 236.05 236.05 236.40 0.23 0.00 6.33 193 1.05% 1.90% 236.92 237.79 240.58 2.03 6.62 11.90 305 0.51% 0.56% 241.06 241.33 242.77 1.55 7.46 6.62 339 0.47% 0.73% 242.56 242.97 245.01 1.61 6.01 7.46 305 0.76% 0.63% 245.26 245.26 247.17 2.31 4.79 6.01 31 0.23% 0.80% 246.90 247.67 247.17 0.07 0.00 4.79 42 1.30% 0.56% 225.79 225.81 226.03 0.54 6.21 6.62 97 0.24% 0.54% 225.19 226.40 225.72 0.24 6.87 6.21 30 0.25% 0.70% 225.70 226.70 225.93 0.07 10.44 6.87 251 1.49% 3.43% 226.30 227.25 235.15 3.74 11.01 10.44 42 0.78% 5.02% 238.02 238.02 238.26 0.33 5.35 11.01 32 0.29% 1.00% 238.48 238.98 238.79 0.09 0.00 5.35 31 0.50% 1.14% 244.41 245.36 244.78 0.16 0.00 7.29 31 0.24% 0.77% 242.32 242.97 242.58 O.Ql 0.00 5.71 36 0.54% 0.72% 240.20 241.33 240.46 0.19 0.00 6.16 32 0.31% 1.00% 226.46 227.25 226.80 0.10 0.00 6.56 Ending Top Delta Hi WSElev Inlet Check 0.12 225.48 227.63 OK 0.58 227.89 230.57 OK 0.71 235.96 238.68 OK 0.31 236.71 238.68 OK 0.76 241.33 243.04 OK 0.09 242.97 245.09 OK 0.15 245.16 247.37 OK 0.10 247.67 249.53 OK 0.18 247.92 249.53 OK 0.04 226.40 227.63 OK O.Ql 226.70 228.8 OK 0.48 227.25 229.47 OK 0.10 235.24 238.75 OK 0.72 238.98 241.25 OK 0.22 239.30 241.25 OK 0.41 245.93 247.33 OK 0.25 243.30 244.95 OK 0.29 241.82 243.07 OK 0.33 227.69 229.45 OK Q Delta Full 2.1539 60.2 2.6795 22.0 2.7201 38.0 1.9687 18.6 1.7061 52.6 2.1155 28.6 2.2083 32.6 1.8614 16.7 1.6120 8.7 1.2347 28.6 2.1002 28.1 2.2171 32.0 3.5068 18.1 2.2686 21.9 1.9533 9.8 1.4025 22.5 1.6486 18.5 1.2485 17.9 1.7637 21.1 Main Inlet In 1.5 1.4 1.3 0 3.4 33 3.2 3.1 0 4.45 4.4 4.3 4.2 41 0 0 0 0 0 11/10/2014 dra.xls Exhibit C-4 Inlets FL FL Begin Pioe From To Upper lower WS Elev 0100 [l;a Length Sf 1.6 out 223.19 221.45 223.45 98.60 box ~9 1.16% 1.5 1.6 226.11 223.89 227.63 22.24 24 201 1.62% 1.4 1.5 2~.35 226.79 230.57 22.75 24 226 1.70% 1.3 1.4 235.2 2~.85 236.32 18.33 24 43 1.10% 3.5 out 238.95 235.29 237.79 61.40 30 193 2.23% 3.4 3.5 240.71 239 242.90 42.67 30 305 1.08% 3.3 3.4 243.26 240.81 245.09 41.18 30 339 1.00% 3.2 3.3 245.72 243.81 247.37 22.03 24 305 1.59% 3.1 32 246.49 246.22 249.53 5.65 18 31 0.49% 4.5 1.6 223.53 223.29 225.81 68.09 30 42 2.74% 4.45 4.5 224.16 223.63 226.97 29.57 30 97 0.52% 4.4 4.45 224.49 224.26 227.57 29.70 30 30 0.52% 4.3 4.4 2~.36 225.51 228.30 14.37 18 251 3.14% 4.2 4.3 237.7 235.46 236.34 10.40 18 42 1.65% 4.1 4.2 238.11 237.8 239.30 6.34 18 32 0.61% 5.1 3.3 243.73 243.36 245.36 17.91 24 31 1.05% 6.2 3.4 241.63 241.37 242.97 12.33 24 31 0.50% 7.1 3.5 239.26 239 241.33 18.53 24 36 1.13% 8.1 4.4 225.85 225.51 227.25 14.12 24 32 0.65% EXHIBIT C-5 HYDRAULIC GRADE LINE - 1 OOYr. Storm Pebble Creek 7D I "c,°;ma1 Normal Startin a Denth Velocitv Velocitv Endinn Too Endinn Pipes Lower WSElev Upper Hf In Out Hj WSHead Inlet WSElev 0.50% 224.05 224.05 225.79 4.04 7.96 9.48 0.21 228.29 227.63 227.63 1.09% 225.49 227.63 227.71 3.26 12.56 7.96 0.73 231.63 230.57 230.57 3.25% 227.89 230.57 235.45 3.84 6.73 12.56 0.87 236.32 238.68 236.32 0.78% 236.45 236.45 236.80 0.47 0.00 6.73 0.35 237.28 238.68 237.28 1.90% 237.79 237.79 241.45 4.30 6.62 12.20 0.81 242.90 243.04 242.90 0.56% 241.50 242.90 243.21 3.28 7.56 6.62 0.10 246.29 245.09 245.09 0.73% 243.31 245.09 245.76 3.40 6.05 7.56 0.16 248.65 247.37 247.37 0.63% 245.81 247.37 247.72 4.86 5.25 6.05 0.07 252.30 249.53 249.53 0.80% 247.08 249.53 247.35 0.15 0.00 5.25 0.21 249.89 249.53 249.53 0.56% 225.79 225.81 226.03 1.15 6.50 6.62 0.01 226.97 227.63 226.97 0.54% 225.76 226.97 226.29 0.50 7.37 6.50 0.09 227.57 228.8 227.57 0.70% 226.07 227.57 226.30 0.16 11.34 7.37 0.58 228.30 229.47 228.30 3.43% 226.49 228.30 235.~ 7.89 12.18 11.~ 0.15 236.34 238.75 236.~ 5.02% 236.17 236.~ 238.41 0.69 5.86 12.18 0.88 239.30 241.25 239.30 1.00% 238.66 239.30 238.97 0.20 0.00 5.86 0.27 239.76 241.25 239.76 1.14% 244.66 245.36 245.03 0.33 0.00 7.92 0.49 246.17 247.33 246.17 0.77% 242.52 242.97 242.78 0.15 0.00 6.28 0.31 243.43 244.95 243.43 0.72% 240.65 241.33 240.91 0.41 0.00 6.47 0.32 242.06 243.07 242.06 1.00% 226.71 227.25 227.05 0.21 0.00 7.17 0.40 227.86 229.45 227.86 Delta Q Street Check Della Surface IMdth Surc:harae -0.66 33.00 38 Surcharae -1.06 0.00 38 OK 2.36 0.00 38 OK 1.40 0.00 38 Surcharoe 0.14 25.25 27 Surcharoe -1.20 4.34 27 Surcharoe -1.28 4.87 27 Surcharae -2.77 0.00 27 Stxcharae -0.36 0.00 27 OK 0.66 0.00 38 OK 1.23 0.00 27 OK 1.17 0.00 27 OK 2.41 0.00 27 OK 1.95 0.00 27 OK 1.49 0.00 27 OK 1.16 0.00 27 OK 1.52 0.00 27 OK 1.01 0.00 27 OK 1.59 0.00 27 Street ROW Slope Capacity 0.72% 65.80 3.61% 147.34 361°.4 147.~ 361% 147.34 0.67% 61.<6 0.67% 61.46 0 67'"/o 61.46 0.67% 61.46 067% 61.46 0.70% 64.88 0.70% 62.82 2.26% 112.88 4.24% 154.62 0.70% 62.82 0.70% 62.82 067% 61.46 0.67% 61.46 0.67% 61.46 2.26% 112.88 Main Inlet In 1.5 1.4 1.3 0 3.4 3.3 3.2 3.1 0 4.45 4.4 4.3 4.2 4.1 0 0 0 0 0 1111012014 dra.xls Exhibit C-5 1/4..:JFT. I 50' R.O.W. 11' 28' B.C. -B.C. ---------~----------i Flow Area ( 10 year) = 3 .82 sf !Wetted Perimeter = 24.0 LF ~ 3 .00" 1/~/FT. I I I I TYPICAL 213' eA~ME~I SEC]Q~ NTS 1.49 5.50 21.5 1h Q = 0.018 5.50 ( 28.4 ) l 0.0067*) -12.5 cfs ** • -Lowest Street Grade ln Phase 70 wlth largest drainage areas (Quany Oaks) ** = Exceeds all flows In residential streets per Exhibit C-1. llO' R.O.W. Je' e.c. ro e.c. 10.5' Flow Area (10 year) = 7.28 sf f Wetted Perimeter = 32.08 LF 1/4" /Ft.-~ --1/4" /Ft. I v11111 1 I ~---~,-==r:======:.__~~--===========----======::::ii=::....L~, TYPICAL 39' PAVEMENT SECTION NTS 1.49 L~:~_/.6l )1h Q = 0.018 7 .28 \3-2.08] 0.01 O* -22.4 cfs ** • -Lowest Street Grade In Phase 70 (Royal Adelade Loop) ** = Exceeds all flows In collector streets per Exhibit C-1. EXHIBIT D-1 10-year Street Capacity P£88L£ Cl?££K PHASE 7C COLL£C£ STATION, BRAZOS COUNTY, TEXAS 1/4" /FT. I 50' R.O .W. 11' 28' B.C. -B.C. ----------+----------~ ! Flow Area (100 year) = 12.26 sf Wetted Perimeter = 50.64 LF '-q////-,,,,,, J //,/////,: I TYPICAL 28' PAVEMENT SECTION NTS I Q -1.49 ( 12.26 (1.i( )1h 0.018 12.26 50.64 0.0067* -29.03 cfs .. 1/4" /FT. I * = Lowest Street Grade in Phase 70 with largest drainage areas (Quany Oaks) ** -Exceeds all flows in residential streets per Exhibit C-1. 60' R.O.W. 39' B.C. TO B.C. 10.5' 1/4" /Fl. ! Flow Area (100 year) = 25.30 sf Wetted Perimeter = 60.80 LF 3.00" -1/4" /Ft. I I 11111 .,,,,, TYPICAL 39• PAVEMENT SECTION NTS Q 1.49 = 0.018 l 25 30(!.5( )V2 25.30 0.010* = 116.7 cfs ** * -Lowest Street Grade in Phase 70 (Royal Adelade Loop) ** -Exceeds all flows in collector streets per Exhibit C-1. I I EXHIBIT D-2 100-year Street Capacity PEBBLE CREEK PHASE 7C COLLEGE STATION, BRAZOS COUNTY. TEXAS ~ 1006 -DrM, S..1• 10J, ~ stolion. TX 77tU5 l:HB '""""' . """""' """""""'/S<AM"N'. ""' • (V9) 61J-.18J8 Fax: (179) 61J-2554 Fdm R9g. No. F-458 Area= 51 .3 sf Wetted Perimeter = 37 .7 ft Hyd . Radius = 1.36 ft / ---------I ' I \_ _____ _; EXISTING CHANNEL BETWEEN PHASE zp ANP 78 NlS Q 1ty 1.49 L..~.!.:.~_lh1 )1h capac • 0 .03S 51 .3 \37Yl \ 0 .008 -240 cfs Qactual • 148 cfs (100 year) EXHI B IT D-3 Creek Capac it y PEBBLE CREEK PHASE 70 COLLEGE STATION, BRAZOS COUNTY, TEXAS ~ • 1006 -°"""' sun. I~ CWllpo -TX 171U$ ~ McCLU/?£ .!' BROWNE ENCINEIRllVC/SURVEYINC, INC. • (Pn) a.J-Ja:JIJ ror (Pn) llJ-.1$54 nm Rog. ,., r-4!16 DRAINAGE MAP 1· = 300' SCALE : Hor: ~ ~o· i o' 600' I EXHIBIT B-1 DRAINAGE AREA MAP PEBBLE CREEK PHASE 70 COL1ECE STATION, BRAZOS COUNTY. TEXAS \ ;:: ;:: <LI c 0 0 " w ....I ....I ....I < < a. < LL LL w w 0 i= I-c c " ....I z < z z C) < w z w (.) ~~ ~ < w ....I > ::e ....I z c ~ < W< iii w < " C) " ....I I-cw > I-Wz w ....I g ~~ ~ ~ e i') ~ El ;t NO. AC. 0.4 0.55 0.9 ft. ft. ,. Ex· 70.40 0.00 70.40 a.aa 36.72 1ao.a 1.a Prop 29.80 o.ao 29.8a a.oo 16.39 1ao.o 1.a 1.3 2.66 a.oo 2.66 a.aa 1.46 14a.a 2.a 1.4 a.66 0.00 0.66 0.00 a.36 135.a 2.a 1.5 o.aa o.ao a.aa 0.00 a.oa 136.a 3.0 1.6 1.39 o.aa 1.39 o.oa a.76 136.a 3.0 1.68 0.00 o.aa o.ao o.oa a.oo 137.0 4.0 4.1 0.92 o.oa 0.92 o.ao 0.51 140.0 7.a 4.2 0.6a o.ao a.6a o.ao 0.33 140.0 7.0 4.3 0.59 a.ao a.59 o.ao 0.32 . 141.a 8.0 4.4 0.30 0.00 0.30 a.oo 0.17 138.0 5.a 4.5 5.96 a.aa 5.96 0.00 3.28 265.a 6.0 6.1 2.a5 a.aa 2.05 o.oa 1.13 1.0 1.a 3.1 0.82 a.aa a.82 o.oa a.45 265.0 4.0 3.2 2.4a 0.00 2.40 o.ao 1.32 15.a 3.a 3.3 a.39 0.00 0.39 o.ao 0.21 185.0 4.a 3.4 a.46 a.aa a.46 0.00 0.25 165.0 4.0 3.5 0.53 0.00 a.53 a.ao 0.29 166.a 5.0 5.1 2.60 0.00 2.60 a.oo 1.43 187.0 6.0 6.2 1.79 o.oa 1.79 0.00 0.96 166.a 7.0 7.1 2.69 0.00 2.69 a.oa 1.48 169.a 6.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Pebble Creek 70 ;:: ;:: 0 0 ....I ....I LL LL r:: " :t: " u w I-w u I-u I-I= ~ I= j 0 ..; ....I w i5 ~ i5 ~ ~ ~ ~ ~ ~ "' "' ft. ft. tus min min In/Hr cfs In/Hr cfs 19ao.a 15.a 1.6 2a.4 2a.4 4.39 169.6 5.4 21a.1 190a.o 15.a 1.6 2a.4 20.4 4.39 71.9 5.4 68.9 160.0 1.6 1.2 4.3 1a.a 6.33 9.3 7.7 11.3 45a.o 2.a 1.2 8.3 10.a 6.33 2.3 7.7 2.6 451.a 3.a 1.4 6.8 10.0 6.33 a.o 7.7 a.o 451.a 3.0 1.4 6.6 10.0 6.33 4.8 7.7 5.9 452.0 4.a 1.7 5.9 1a.a 6.33 o.a 7.7 o.a 455.0 7.a 2.2 4.6 10.0 6.33 3.2 7.7 3.9 455.0 7.a 2.2 4.6 1a.o 6.33 2.1 7.7 2.5 456.0 8.0 2.3 4.3 1a.o 6.33 2.1 7.7 2.5 453.0 5.0 1.8 5.3 10.0 6.33 1.a 7.7 1.3 110.0 2.a 1.2 5.3 1a.a 6.33 2a.7 7.7 25.2 50.0 5.a 6.3 0.1 1a.o 6.33 7.1 7.7 6.7 453.0 4.a 1.3 9.7 1a.a 6.33 2.9 7.7 3.5 415.0 3.0 1.7 4.2 10.0 6.33 8.4 7.7 10.2 285.a 2.0 1.3 5.6 10.a 6.33 1.4 7.7 1.7 302.0 2.a 1.3 6.1 10.0 6.33 1.6 7.7 1.9 303.0 3.a 1.6 5.2 10.a 6.33 1.8 7.7 2.2 304.0 4.0 1.7 4.7 10.0 6.33 9.a 7.7 11.a 305.0 5.0 1.9 4.3 10.a 6.33 6.2 7.7 7.6 306.0 6.0 2.1 4.0 10.a 6.33 9.4 7.7 11.4 0 "' 0 c; "' ~ ~ "' In/Hr cfs In/Hr cfs 6.2 236.1 7.1 273.1 6.2 1aa.8 7.1 115.6 6.6 "'12.6 9.9 14.4 6.6 3.1 9.9 3.6 8.6 0.0 9.9 0.0 8.6 6.6 9.9 7.5 6.6 a.a 9.9 0.0 8.6 4.4 9.9 5.0 6.6 2.6 9.9 3.3 6.6 2.8 9.9 3.2 6.6 1.4 9.9 1.6 8.6 26.3 9.9 32.3 8.6 9.7 9.9 11.1 6.6 3.9 9.9 4.4 6.6 11.4 9.9 13.0 8.6 1.9 9.9 2.1 8.6 2.2 9.9 2.5 8.6 2.5 9.9 2.9 6.6 12.3 9.9 14.1 8.6 8.5 9.9 9.7 6.6 12.8 9.9 14.6 0 0 8 "' In/Hr cfs 8.0 3a9.9 8.0 131.2 11.1 . 16.3 11.1 4.0 11.1 . o.a 11.1 8.5 11.1 0.0 11.1 5.6 11.1 3.7 11.1 3.6 11.1 1.8 11.1 36.5 11.1 12.6 11.1 5.0 11.1 14.7 11.1 2.4 11.1 2.6 11.1 3.2 11.1 15.9 11.1 11.a 11.1 16.5 0 0 ~ In/Hr 9.0 9.0 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 12.5 0 0 c; cfs 350.1 148.2 16.3 4.5 a.a 9.6 a.o 6.3 4.1 4.1 2.1 41.1 14.1 5.6 16.5 2.7 3.2 3.7 17.9 12.3 16.5 11/10/2014 dra.xls Exhibit C-1 c( ~ w c 0 c:: w ...J ...J c( c( Q. c( .... w 0 I-c w c:: ...J i= z c( z (!) c( w z w (.) ~ i= c( w ...J > :::;; ...J z c( We( c w c( c:: (!) ~ I-cw iii > I-Wz 8 z c:: w c( 8 >w c ::> c( c:: Q. 0...J NO. AC. 0.4 0.55 0.9 ft. Ex 70.40 0.00 70.40 0.00 38.72 100.0 Prop 29.80 0.00 29.80 0.00 16.39 100.0 1.3 2.66 0.00 2.66 0.00 1.46 140.0 1.4 0.66 0.00 0.66 0.00 0.36 135.0 1.5 0.00 0.00 0.00 0.00 0.00 136.0 1.6 1.39 0.00 1.39 0.00 0.76 136.0 1.68 0.00 0.00 0.00 0.00 0.00 137.0 4.1 0.92 0.00 0.92 0.00 0.51 140.0 4.2 0.60 0.00 0.60 0.00 0.33 140.0 4.3 0.59 0.00 0.59 0.00 0.32 141.0 4.4 0.30 0.00 0.30 0.00 0.17 138.0 4.5 0.00 0.00 0.00 0.00 0.00 139.0 4.5 5.96 0.00 5.96 0.00 3.28 285.0 4.5 Red 4.00 0.00 4.00 0.00 2.20 285.0 4.5 Green 1.96 0.00 1.96 0.00 1.08 310.0 4.5 0.00 . 0.00 0.00 0.00 0.00 65.0 8.1 2.05 0.00 2.05 0.00 1.13 1.0 3.1 0.82 0.00 0.82 0.00 0.45 285.0 3.2 2.40 0.00 2.40 0.00 1.32 15.0 3.3 0.39 0.00 0.39 0.00 0.21 185.0 3.4 0.46 0.00 0.46 0.00 0.25 185.0 3.5 0.53 0.00 0.53 0.00 0.29 186.0 5.1 2.60 0.00 2.60 0.00 1.43 187.0 6.2 1.79 0.00 1.79 0.00 0.98 188.0 7.1 2.69 0.00 2.69 0.00 1.48 189.0 ~ 0 ...J .... c z ~ c:: ...J w ...J >< 0 .... EXHIBIT C-1 Rational Formula Drainage Area Calculations Pebble Creek 70 ~ ~ 0 0 ...J ...J .... .... ~ c:: J: c:: u .., w I-w I-.., I= (!) I= ...J 0 I-...J u w ::> z ::> ...J w ;;; I/) N (!) ~ (!) ~ > (.) ::> N 0 .... .... 0 ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs 1.0 1900.0 15.0 1.6 20.4 20.4 4.39 169.8 5.4 210.1 1.0 1900.0 15.0 1.6 20.4 20.4 4.39 71.9 5.4 88.9 2.0 180.0 1.8 1.2 4.3 10.0 6.33 9.3 7.7 11.3 2.0 450.0 2.0 1.2 8.3 10.0 6.33 2.3 7.7 2.8 3.0 451.0 3.0 1.4 6.8 10.0 6.33 0.0 7.7 0.0 3.0 451.0 3.0 1.4 6.8 10.0 6.33 4.8 7.7 5.9 4.0 452.0 4.0 1.7 5.9 10.0 6.33 0.0 7.7 0.0 7.0 455.0 7.0 2.2 4.6 10.0 6.33 3.2 7.7 3.9 7.0 455.0 7.0 2.2 4.6 10.0 6.33 2.1 7.7 2.5 8.0 456.0 8.0 2.3 4.3 10.0 6.33 2.1 7.7 2.5 5.0 453.0 5.0 1.8 5.3 10.0 6.33 1.0 7.7 1.3 6.0 454.0 6.0 2.0 4.9 10.0 6.33 0.0 7.7 0.0 6.0 110.0 2.0 1.2 5.3 10.0 6.33 20.7 7.7 25.2 6.0 110.0 2.0 1.2 5.3 10.0 6.33 13.9 7.7 16.9 4.0 250.0 4.0 1.2 8.1 10.0 6.33 6.8 7.7 8.3 1.0 200.0 4.0 1.8 2.4 10.0 6.33 0.0 7.7 0.0 1.0 50.0 5.0 6.3 0.1 10.0 6.33 7.1 7.7 8.7 4.0 453.0 4.0 1.3 9.7 10.0 6.33 2.9 7.7 3.5 3.0 415.0 3.0 1.7 4.2 10.0 6.33 8.4 7.7 10.2 4.0 285.0 2.0 1.3 5.8 10.0 6.33 1.4 7.7 1.7 4.0 302.0 2.0 1.3 6.1 10.0 6.33 1.6 7.7 1.9 5.0 303.0 3.0 1.6 5.2 10.0 6.33 1.8 7.7 2.2 6.0 304.0 4.0 1.7 4.7 10.0 6.33 9.0 7.7 11.0 7.0 305.0 5.0 1.9 4.3 10.0 6.33 6.2 7.7 7.6 8.0 306.0 6.0 2.1 4.0 10.0 6.33 9.4 7.7 11.4 0 .... 0 & .... N ~ N 0 In/Hr cfs In/Hr cfs 6.2 238.1 7.1 273.1 6.2 100.8 7.1 115.6 8.6 12.6 9.9 14.4 8.6 3.1 9.9 3.6 8.6 0.0 9.9 0.0 8.6 6.6 9.9 7.5 8.6 0.0 9.9 0.0 8.6 4.4 9.9 5.0 8.6 2.8 9.9 3.3 8.6 2.8 9.9 3.2 8.6 1.4 9.9 1.6 8.6 0.0 9.9 0.0 8.6 28.3 9.9 32.3 8.6 19.0 9.9 21.7 8.6 9.3 9.9 10.6 8.6 0.0 9.9 0.0 8.6 9.7 9.9 11.1 8.6 3.9 9.9 4.4 8.6 11.4 9.9 13.0 8.6 1.9 9.9 2.1 8.6 2.2 9.9 2.5 8.6 2.5 9.9 2.9 8.6 12.3 9.9 14.1 8.6 8.5 9.9 9.7 8.6 12.8 9.9 14.6 0 0 .... .... 0 In/Hr cfs 8.0 309.9 8.0 131.2 11.1 16.3 11.1 4.0 11.1 0.0 11.1 8.5 11.1 0.0 11.1 5.6 11.1 3.7 11.1 3.6 11.1 1.8 11.1 0.0 11.1 36.5 11.1 24.5 11.1 12.0 11.1 0.0 11.1 12.6 11.1 5.0 11.1 14.7 11.1 2.4 11.1 2.8 11.1 3.2 11.1 15.9 11.1 11.0 11.1 16.5 0 0 0 0 & ~ In/Hr cfs 9.0 350.1 9.0 148.2 12.5 18.3 12.5 4.5 12.5 0.0 12.5 9.6 12.5 0.0 12.5 6.3 12.5 4.1 12.5 4.1 12.5 2.1 12.5 0.0 12.5 41.1 12.5 27.6 12.5 13.5 12.5 0.0 12.5 14.1 12.5 5.6 12.5 16.5 12.5 2.7 12.5 3.2 12.5 3.7 12.5 17.9 12.5 12.3 12.5 18.5 12/12/2014 dra.xls Exhibit C-1 DRAINAGE REPORT F OR PEBBLE CREEK Phase7D College Station, Texas JUNE2014 REVISED SEPTEMBER 2014 MBESI# 1065-0019 M c C L U R E & BRO WNE EN GI NE ERI NG/S U R VEY I N G , INC. 1008 Woodcreek Dr., Suite 103 · College Stat ion , Tx . 77845 · (979) 693-3838 Engineer Reg . No . F-4 58 Survey Reg . No . 101033 -00 Pebble Creek, Phase 7D Stormwater Management Technical Design Summary Report MBES/#1065-0019 PART 1 -Executive Summary Report Section I -Contact In for mation : Project Designer: Project D eveloper: Submittal Date: McC lure and Browne Eng in ee rin g an d Surveying , In c. 1008 Wo odcre ek Dri ve , S uite 10 3 College Station, TX 77845 979 -693-3838 Pebble C reek Land Company 4500 Pebble Creek Parkway Co ll ege Station , TX 77845 979-690-0992 June2014 Section 2 -General Information : Peb ble Creek 70 is a phase of the Pebble Creek master p lanned community to be constructed in south Co lle ge Station. The total area of the development is ap pro xi mate ly 55 acres with a total of 84 lots . The plan is based on the Prelim inary Plat s ubmitte d May 20 13. Section 3 -Project Locatio n : Pebble Creek 7D is loc ate d in south Co ll ege Stati o n near the intersectio n of Royal Ade lade Dri ve and Pebbl e Creek Park way. T he entire project s it e is located w ithin the c ity limit s of Co ll ege Station. The e ntire site is located within the Alum Creek and Lick Cree k D rainag e Basin . A portion of the site is s ho wn to be within the I 00-year floodplain . (Fema Firm Map # 4 804 1 C0350E). Based on Table B-1, Appe ndix B of the Unifi ed Storm water Des ig n Guidelines , A lum Creek from S .H. 6 down stream is not required to have dete ntion for flood co ntrol. Section 4 -Hydro lo gic C haracterist ics: The project site is mostl y den se trees a nd und e rbru sh with the heaviest co nce ntrati o ns of vege tatio n being near the creeks . There is a well defined drainage swale th at separates Ph ase 7 0 from 7B . This drain age swale co nveys storm wate r east to Lick C reek. There are no ex ist in g drainage easeme nt s or ROW on the property. With thi s development drain ag e ease ments wi ll be prov id ed a long the paths of conveyance to the existing creek . Stormwater Management Technical D es ig n S umm ary R e port Page 1 of2 Pebble Creek, Ph ase 70 Section 5 -Stormwater Management: As st ated in Section 3, no detention will be provi ded for this project. Stormwater w ill be co nveyed by curb and g utter to re cessed inlets. The stormwater will be dis c har ged directl y into the existing drain age swale or Tributary AC-I of Alum Creek. Prope r e nd treatments and riprap sta bilizati on w ill be used to prevent erosion. Section 6 -Coordination and Permitting: No coordin atio n or permitting is required for this deve lopment. Section 7 -Reference: Exhi bit A Exh ibit B Exhibit C-1 Exhi bit C-2 Exhibit C-3 Exhibit C-4 Exhibit C-5 Exh ibit C-6 Exhibit D-1 Exhibit D-2 Appendix D -Technical De s ig n Summary Drainage Area Map (Storm Dra in) Ration a l Formu la Drain age Area Calculations Inlet Computations Pipe Si ze Calculations -I 0 year s torm Pipe Size Calculations -100 year storm Hydraulic Grade Line -I 0-Year Storm Hy draulic Grade Line -JOO-Y ear Storm I 0 Year Street Capacity Calculations I 00 Year Street Capacity Calculations Stormwater Ma nagement Technical Des ign Summary R e po rt Pebble Creek, Phase 7D Page 2 of2 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY T he Cities of Bryan and College Station both require storm drainage design to fol low these Un ified Stormwater Des ign Guidelines . Paragraph C2 of Section Ill (Adm inistration) requires submittal of a drainage report in support of the drainage plan (stormwater management plan) proposed in connection w ith land development projects , both site projects and subdivisions . That report may be submitted as a traditional prose report, complete with appl icab le maps , graphs , tables and drawings , or it may take the form of a "Technical Design Summary". The format and content for such a summary report shall be in substantial conformance with the description in this Appendix to those Guidelines . In either format the report must answer the q uestions (affirmative or negative) and provide , at min imum , the information prescr ibed in the ''Technical Design Summary" in this Appendix . The Stormwater Management Technical Des ign Summary Report shall include several parts as listed below . The information called for in each part must be provided as applicable . In addition to the requirements for the Execut ive Summary, this Appendix includes seve ral pages deta iling the requirements for a Technical Design Summary Report as forms to be completed. These are provided so that they may be cop ied and completed or scanned and d igit ized . In add ition , e lectronic vers ions of the report forms may be obta ined from the C ity . Requirements for the means (medium) of submittal are the same as for a convent ional report as detailed in Sect ion Ill of these Guidel ines . Note: Part 1 -Executive Summary must acc ompany any drainage report requ ired to be provided in connect ion with any land development project , regardless of the format chosen for said report. Note: Parts 2 through 6 are to be provided via the forms provided in this Appendix . Brief statements shou ld be included in the forms as requested , but additional information should be attached as necessary. Part 1 -Executive Summary Report Part 2 -Project Administration Part 3 -Project Characteristics Part 4 -Drainage Concept and Design Parameters Part 5 -Plans and Specifications Part 6 -Conclusions and Attestation STORMWATER MANAGEMENT TECHNICAL DESIGN SUMMARY REPORT Part 1 -Executive Summary Th is is to be a brief prose report that must address each of the seven areas listed below . Ideally it will include one or more paragraphs about each item . 1. Name , address , and contact information of the engineer submitting the report , and of the land owner and developer (or applicant if not the owner or developer). The date of submittal shou ld also be included. 2 . Identification of the size and general nature of the proposed project , including any proposed project phases . This paragraph should also include reference to STORMWATE R D ESIG N G U ID ELINES Effective Fe bru ary 2007 Page 1of26 A PP END IX . D: TEC H . DES IGN S UM MA RY A s Revi sed Febr uary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY app lications that are in process with either C ity: plat(s ), site plans , zoning requests , or clearing/grading permits , as well as reference to any application numbers or codes assigned by the City to such request. 3. The location of the project should be described. This should identify the Named Regulatory Watershed(s) in which it is located, how the ent ire project area is situated therein , whether the property straddles a watershed or basin d ivide , the approximate acreage in each basin , and whether its position in the Watershed dictates use of detention des ign . The approximate proportion of the property in the city limits and within the ET J is to be identified, including whether the property straddles city jurisdictional lines . If any portion of the property is in floodplains as described in Flood Insurance Rate Maps published by FEMA that should be disclosed . 4. The hydrologic characteristics of the property are to be described in broad terms : ex ist ing land cover ; how and where stormwater drains to and from ne ighboring properties ; ponds or wetland areas that tend to detain or store stormwater; existing creeks , channe ls , and swales crossing or serv ing the property ; all existing dra inage easements (or ROW) on the property, or on neighboring properties if they service runoff to or from the property . 5. The general plan for managing stormwater in the entire project area must be outl ined to include the approximate size , and extent of use , of any of the following features : storm drains coupled with streets ; detention I retention faci lities ; bur ied conveyance conduit independent of streets ; swales or channels ; bridges or culverts ; outfalls to pr incipal watercourses or the ir tr ibutaries ; and treatment(s) of ex ist ing watercourses . Also , any plans for reclaiming land within floodplain areas must be outl ined . 6. Coordination and perm itting of stormwater matters must be addressed. This is to include any specialized coordination that has occurred or is planned w ith other ent it ies (local , state , or federal). Th is may inc lude agenc ies such as Brazos County government, the Brazos River Authority , the Texas A&M University System , the Texas Department of Transportat ion , the Texas Comm ission for Env ironmental Qua li ty , the US Army Corps of Engineers, the US Environmental Protect ion Agency , et al. Mention must be made of any permits , agreements , or understandings that pertain to the project. 7 . Reference is to be made to the full drainage report (or the Technical Design Summary Report) which the executive summary represents . The princ ipal elements of the ma i n report (and its length), including any maps , drawings or construction documents , should be itemized . An example statement might be : "One __ -page drainage report dated , one set of construction drawings ( __ sheets) dated , and a ___ -page specifications document dated comprise the drainage report for this project." STORMWATER D ESI GN GU IDE LI NES Effe ctive Fe bruary 2007 Pa ge 2 of 26 APPEND IX . D : TECH . D ESIGN SUMMARY A s Revi sed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Start (Page 2.1) Engineering and Design Professionals Information Engineering Firm Name and Address: Jurisdiction McClure & Browne Engineering/Surveying , Inc. City : Bryan 1008 Woodcreek Dr ., Ste . 103 x College Station College Station, Tx 77845 Date of Submittal : Oct 2013 ' Lead Engineer's Name and Contact lnfo .(phone , e-mail , fax): I Other: Jeffery Robertson , PE , PH: 693-3838, FX: 693-2554, jeffr@mcclurebrowne.com Supporting Engineering I Consulting Firm(s ): Other co nt acts : Developer I Owner I Applicant Information Developer I Applicant Name and Address : Phone and e-mail : Pebble Creek Land Company PH: 690-0992 College Station , Tx 77802 wendy.s@pebblecreektx.org Property Owner(s) if not Developer I Applicant (&address ): Phone and e-mail : Project Identification Development Name : Pebble Creek Phase 70 Is subject property a site project , a single-phase subdivision , or part of a multi-phase subdivision? Yes If multi -phase , subject property is phase 70 of Legal description of subject property (phase) or Project Area: (see Section II , Paragraph B-3a) If subje ct property (phase) is second or later phase of a project , describe general status of all earlier phases . For most recent earlier phase In clude submittal and review dates . Most earlier phases are completely developed. This is the last phase in this part of the subdivision . Additional property will be developed along Rock Prairie Road and near the business center in the future . General Location of Project Are a, or subject property (phase ): Generally between Phase 7B and Alum Creek . In City Limits ? Extrater ritorial Jurisdiction (acreage): Bryan : acres . Bryan : College Station : College Station : 55.03 acres. Acreage Outside ET J : STORMWATER DESIGN GUIDELINES Effective February 2007 Pag e 3 of 26 APPENDI X . D : TECH . DESIGN SUMMARY As Revised February 2008 S ECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Co nt in ued (pa ge 2.2) Project Identification (continued) Roadways abutting or w ithin Project Area or Ab utting tra cts , pl atted land , or bui lt subj ect property: deve lopme nts : Royal Adelade Drive & Pebble Creek Lick Creek Park Parkway Pebble Creek Phase 7B Pebble Creek Phase 7C Name d Regulatory W aterco urse(s) & Watershed(s): T ributary Basin (s ): Alum Creek & Carters Creek Plat Information For Project or Subject Property (or Phase) P rel imi nary Plat File #: Fina l Plat File #: Date : Name : Status and Vol /Pg: If two p lats , second na m e: Fi le#: Status : Date : Zoning Information For Project or Subject Property (or Phase) Zon ing T ype : R-1 Existing or Proposed? Case Code : Case Date Status : Existing Zon ing Type : Existing or Proposed? Case Code : Case Date Status : Stormwater Management Planning For Project or Subject Property (or Phase) P lanning Conference (s) & Date (s): Partic ipants : Preliminary Report Required? Submitta l Date Review Date Revi ew Com m ents Addressed? Yes --No --In Wri ti ng ? When ? Co m plia nce W it h Prel iminary Dra inag e Repo rt. Briefly desc ribe (or atta c h documentation ex plaining ) an y deviation (s ) from provisions of Preli m inary Drainage Report , if any . ST OR MWA TER DESIGN GU IDELINES Effec tive Febru ary 200 7 Page 4 of 26 APPENDI X. D: TECH . DESIG N SUMMAR Y As Revise d Febru ary 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Continued (page 2 .3) Coordination For Project or Subject Property (or Phase) Note: For any Coordination of stormwater matters indicated below, attach documentation descri bin g and substantiating any agreements , understandings, contracts, or approva ls . Coordination Dept. Contact: Date : Subject: With Other Departments of Jurisdiction City (Bryan or College Station ) Coord ina tion With Summarize need(s) & actions taken (incl ude contacts & dates): Non-jurisdiction City Needed? Yes __ No ~ Coord in ation with Summarize need(s) & actions taken (inclu de contacts & dates): Brazos County Needed? Yes No X -- Coordination with Summarize need(s) & act ions taken (inclu de contacts & dates): TxDOT Needed ? Yes No X -- Coordination with Summarize need(s) & actio ns taken (incl ude contacts & dates): TAMU S Needed ? Yes No x -- -- Permits For Project or Subject Property (or Phase) As to stormwater management , are permits required for the proposed work from any of the entities listed be low? If so , summarize status of efforts toward that objective in spaces below . Entity Permitted or Status of Actions (include dates) Approved? US Army Crops of Engineers No x Yes --- US Environmenta l Protection Agency No x Yes --- Texas Commission on Environmental Qua lity No X Yes -- Brazos River Authority No X Yes - STORMWATER DESIGN GUIDELINES Effectiv e Febru ary 2007 Page 5 of 26 APPENDI X. D: TECH . DESIGN SUMMARY As Revis ed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQert~ Characte r istics I St art (Pa g e 3.1) Nature and Scope of Proposed Work Exi sting: Land proposed for development current ly used , includi ng extent of impervious cover? Land is currently oak covered pasture land . S ite __ Redeve lopme nt of o ne platted lot , or two o r more adjoi ning platted lots . Developm en t __ Building on a single platted lot of undeveloped land. Project __ Bui ldi ng on two or more platted adjoining lots of undeveloped land . (select all __ Building on a s ing le lot , or ad j oining lots, where proposed plat will not form applicab le) a new street (b ut ma y incl ud e ROW ded ication to exist in g streets). __ Other (explain): Subdivision __ Construction of st reets an d ut ilities to serve one or more platted lots . Development _X __ Constructio n of st reets and ut ilit ies to se rve one o r mo re proposed lots on Project la nds rep resented by pen di ng plats. Site projects : building use(s), approximate floor space , impervio us cover ratio . Describe Su bdi vi sio ns : number of lots by ge nera l type of use , linear feet of streets and Na t ure and drainage easements o r ROW . S ize of 81 Lots -Single Family Residential Pro12osed Streets -4 ,340 LF Pr oject - Is any work planned on land that is not platted If yes , explain : or on lan d for w hic h platting is not pending? x No Yes ---- FEMA Floodplains Is any part of subject property abutti ng a Named Regulatory Wate rcourse I No __ Yes _lL_ (Section II , Paragrap h B1) or a t ributary thereof? Is any part of subject property in floodplain I No_ Yes x Rate Map _ 48041 C0350E area of a FEMA-regu lated watercourse? -- Encroac hment( s) Encroachment purpose(s): __ Build ing site(s ) __ Road crossing(s) into Floodplain areas pla nn ed? __ Uti li ty crossi ng(s) L__ Ot her (exp la in ): No --Back of Lots in Block 39 Yes X If floodp lain areas not shown on Rate Maps , has work been done toward amending the FEMA- approved Flood St ud y to defin e a ll owab le encroachments in proposed areas? Explain . STORMWATER DESIGN GUIDELINES Effe ctive Februa ry 2007 Pag e 6 of 26 APPENDIX . D : TECH . DES IG N SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ert)l Characteristics I Co ntinued (Pa ge 3.2) Hydrologic Attributes of Subject P roperty (or Phase) Has a n earlier hydro logic analysis been done for larger area incl udi ng subject property? Yes Reference t he study (&date) here , and attach copy if not already in City files . -- Is the storm water management plan for the property in s ubstantia l conformance w ith the earlier study? Yes No If not, expla in how it differs . No If subject property is not part of multi-phase project , describe stormwater management x plan for the property in Part 4 . -If property !.§. part of m ulti -phase proj ect, prov ide ove rvie w of stormwa ter management plan for Project Area here . In Part 4 describe how plan for s ubject property will comply therewith . Do existing topograp hic featu res on subject property store or deta in runoff? ~ No --Yes Desc ri be them (inc lud e approx imate s ize, vo lume , outfall , mode l , etc). Any known drainage or flooding problems in areas near subject pro perty? -X -No --Yes Identify: Based on location of study property in a watershed, is Type 1 Detention (flood control) needed? (see T ab le B-1 in A ppe ndix B) __ Detention is req uired. --Need must be evaluated . ~Detention not required . W hat decis ion has been reac hed? By w hom ? If the need for Detention not needed per Appendix B Type 1 Detention How was determination made? must be evaluated: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 7 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ert~ Characteristics I Co nt inued (Page 3.3) Hydrologic Attributes of Subject Property (or Phase) (continued) Does su bject property straddle a Watershed or Bas in divide? x No Yes If yes , ---- descri be splits below. In Part 4 desc ribe desiq n concept for hand linq this . Watershed or Basin Larger acreage Lesser ac reaQe Above-Project Areas (Sec tio n II , Paragrap h 8 3-a) Does Project A rea (project or phase) receive runoff from up la nd areas? ~No --Yes Size(s) of a rea(s) in acres : 1) 2) 3) 4) Fl ow Cha racterist ics (each instance) (overla nd s heet , shal low concentrate d , recogn izable concentrated section(s), small c reek (non-reg ulat ory), regu lato ry Watercou rse or tributary); Flo w dete rm inati on : Ou tli ne hydro logic methods and assu mpt ions : Does storm r unoff drain from pub lic easements o r ROW onto or across su bject property? --No --Yes If yes , describe fac il ities in easement or ROW : A re changes in runoff cha racterist ics subj ect to c hange in fu t ure? Exp la in Conveyance Pathways (Section II, Pa rag raph C2) Must runoff from study property rlrain across lowe r properties before reac hi ng a Regulatory Watercourse o r tributary? X No Yes Describe length and c haracte ri stics of each conveyance pat hway(s). Include owne rship of property(i es). STORMWATER DESIGN GUIDELINES Effe ctive February 2007 Page 8 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQert:t Characteristics I Continued (Page 3.4) Hydrologic Attributes of Subject Property (or Phase) (continued) Conveyance Pathways (continued) Do drainage If yes , for what part of length? % Created by? __ plat , or easements instrument. If instrument(s), describe their provisions . exist fo r any -- part of pathway (s )? No -- Ye s -- Where runoff must cross lower properties , des c ribe characteristics of abutting lower property(ies ). (Ex isting watercourses ? Easement or Consen t aquired?) Pathway Areas Des c ribe any built or improved dra i nage facil ities ex isting nea r the property (c ulverts , bridges , lined channels , buried conduit, swales , detention ponds , etc). Nearby Drainage Do any of these have hydrologic or hydraul ic influence on proposed stormwate r Facilities design ? --No --Yes If yes , exp lai n : STOR MWATER DES IGN GU IDELIN ES Effective Fe bru ary 2007 Page 9 of 26 APPENDI X . D : TECH . DESIGN SUMMARY A s Revi se d Febru ary 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce(;!t and Design Parameters I Start (Page 4 .1) Stormwater Management Concept Discharge(s) From Upland Area(s) If runoff is to be received from upland areas , what design drainage features will be used to accommodate it and insure it is not blocked by future development? Describe for ea c h area , flow se ct ion , or discharge point. Discharge(s) To Lower Property(ies) (Section II, Paragraph E1) Does project include drainage features (ex ist ing or futu re ) proposed to become public via platting ? --No --Yes Separate Instrument? No Yes Per Gu idel ines reference above , how will Establishing Easements (Scenario 1) runoff be discharged to neighboring -- __ P re-development Release (Scenario 2) property(i es )? Combination of the two Scenarios -- Scenario 1: If easements are proposed , describe where needed , and provide status of actions on each . (Attached Ex hibit# ) Scenario 2 : Provide general description of how release (s) will be managed to pre-development condition s (detention , sheet flow , partially c on c entrated , et c .). (Attached Exhibit # ) Combination : If combination is proposed , ex plain how discharge w ill d iffer from pre- development c ond itions at the property line for each area (or point) of release . If Scenario 2 , or Combination are to be used , ha s propo sed des ign been coordinated with owner(s ) of receiving property(ie s )? No --Yes Ex plain and provid e documentation . STO RMWATE R DESIGN GU IDELINES Effecti ve Febr uary 2007 Page 10 of 26 APPENDI X . D : TE C H . D ESIGN S UMMARY As Revi se d Febru ary 200 8 N/A SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.2) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project Identify gaining Basins or Watersheds a nd acres shifti ng : Will project result in shifting runoff between Basins or 1--------------------------------i betwe en Wate rsheds? What design and mitigation is used to co mp ensate for in creased runoff from gaining basin or watershed? x No Yes How wil l runoff from Project Area be mitigated to pre- development conditions? Select an y or all of 1, 2 , and/or 3 , and exp lain below . 1. __ With facility(ies ) involving other development projects . 2. __ Establishing features to serve overall Project Area . 3. __ On phase (or s ite ) project basis within Project Area . 1. Shared facility (type & location of facility ; design dra inage area served ; re lationship to size of Project Area ): (Attached Exhib it# ) 2 . For Overall Proj ect Area (type & location of facilities ): (Attached Exhibit# ) 3 . By phase (or site) project: Describe planned mitigation measures for phases (or sites ) in subsequent questions of this Part . C'-· "O QJ en c Q) ~ >- 0::: (/) c .Ql en Q) 0 Oz Jxj Q) -< Are aquatic echosystems proposed ? __ No project(s)? __ Yes In which phase (s ) or Are other Best Management Pra ctices for redu ci ng stormwater pollutants proposed? __ No __ Yes Summarize type of BMP and extent of use : If desig n of any r un off-handlin g facilities deviate from provisions of B-CS Technical Specificat ions , check type facility (ies ) and explain in later questions . __ Detention elements __ Cond uit elements __ Channel features __ Swales __ Ditches __ Inl ets __ V all ey gutters __ Outfalls __ Culvert features __ Bridges Other STO RMWATER DES IGN GU IDELIN ES Effectiv e Fe bru ary 2 007 Pag e 11 of 26 APPENDI X. D : TECH. DES IGN SUMMARY A s Rev ised Feb ru arv 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.3) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project (continued) Will Project Area include bridge(s) or culvert(s)? X _N_o __ -~~~-Y_e_s--ld_e_n-tif_y_t_y_pe_a_n _d __ _, general size and In which phase(s). If detention/retention serves (will serve) overall Proje ct Area, describe how it re lates to subject phase or site project (physical location , conveyance pathway(s), construction sequence): No detention required . Within Or Serving Subject Property (Phase, or Site) If property part of larger Project Area , is des ign in substantial conformance with earlier analysis and report for larger area? __ Yes No , then summarize the difference (s): Identify whether each of the types of drainage features listed below are included , extent of use , and general characteristics . C'-· "O Q) (j) (j) Q) :::i >-Ul ~ I Q) :Q 0 (j) z ] xi ~ (j) .0 Q) a~ >-I 0.' ~ ~x ~ ;::_ If) Q) ...., ...., Q) ::; 0 ~~zl Q) c ..__ Cll <( Typical shape? I Surfaces? Steepest side slopes : Usual front slopes : I Usual back slopes: Flow line slopes: least_____ Typical distance from travelway : typical greatest (Attached Exhibit# ) Are long itudinal culvert ends in compliance with B-CS Standard Specifications ? ___ Yes No , then explain: At intersections or otherwise , do valley gutters cross arterial or collector streets? _X _No __ Yes If yes explain: Are valley gutters proposed to cross any street away from an intersection? _X _No __ Yes Explain : (number of locations?) STORMWATER DESIGN GUIDELINES Effe ctive February 2007 Page 12 of 26 APPENDI X . D : TECH . DES IGN SUMMARY As Revi se d February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.4) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Gutter line slopes : Least 0.60% Usual .2.0% _ Greatest _ 6 .69% Are in lets recessed on arterial and co llector streets? x Yes No If "no ", ---- ident ify where and why. Will in lets capture 10-year design stormflow to prevent flooding of intersections (arterial with arterial or collector)? x Yes --No If no , explain where and why not. C'-· "O Cll U) Will inlet size and placement prevent exceeding allowable water spread for 10-year :::i ..... design storm throughout site (or phase)? x Yes No If no , explain . 2 ----:; Dl -o~ c -0 x Ctl Cll Sag curves : Are in lets placed at low points? Yes No Are inlets and .0 ~ ----..... ·-conduit sized to prevent 100-year stormflow from ponding at greater than 24 inches? :::i...., (..) c x Yes No Explain "no" answers . 0 ..c (..) ---- ....,~ ·~ U) a:; ~ en Cll Will 100-yr stormflow be contained in combination of ROW and buried conduit on ..... <{ whole length of all streets? x Yes No If no , describe where and why . -- Do designs for c urb , gutter , and inlets comply with B-CS Technical Specification s? x Yes --No If not , describe difference(s) and attach justification . Are any 12-inch laterals used? _x__ No --Yes Ident ify length (s) and where used . C'-· "O Pipe runs between system I Typ ical _ 60' Longest 324' Cll U) U) access points (feet): -:::i Cll E >-~x J Are junction boxes used at each bend? x Yes No If not , explain where -- --and why. U) c Ctl 0 ..... z "O I E 0 Are downstream soffits at or below upstream soffits? Least amount that hydraulic en .!!!. Yes __x__ No __ If not , explain where and why: grade line is below gutter line (system-w ide ): 1.42' (10-year) STORMWATER DESIGN GUIDELINES Effect ive February 2007 Page 13 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Pa rameters I Continued (Page 4.5) Stormwate r Management Concept (con ti nued) W it hin O r Se rv ing Subject Property (Phase , or Site) (cont inued) (j) Describe waterco u rse(s), or syste m (s) rece iv ing system disc harge(s) below Q) (inc lude design discharge velocity , a nd a ngle between converging flow lin es). u c 1) Watercourse (or system ), velocity, and ang le? Cll Ul SD-1 , 4 .3 fps, 60 deg. c Q) ~a al E 2) Watercourse (o r system ), ve loc ity , and a ngle ? ::J L.. c 0 SD-2, 5.8 fps, 90 deg . ·--c 0 o-~-~ E Q) ~ Q) E 3) W ate rcou rse (or system), velocity , and angle? -Cll Cll Ul Ul ~ ~ Q) ::J c :Q 0 ·-> ~ e "'O o._ E-L.. Q) For each outfall above , what measures are taken to prevent eros ion or sc our of 0 Q) -.r:::. Cf) Ul receiv ing and all facilities at j un cture? Q) 1) SD-1 -Rock rip-rap at end of headwall. ~ Cll SD-2 -Rock rip-rap at end of headwall. o._ 2 ) Q) Ul c 3) _£. Are swale(s ) situated along prope rty lines betwee n properties? __ No --Yes Number of instances : For eac h instance answer the followin g questions . Surface treatme nts (including low-flow f lu mes if any): C'· Ul (i) ~ Ul -Q) Flo w line slopes (min imum and ma xim um): ~ >- ~ I al 0 Ul z Outfall characteristics for ea ch (veloc ity , convergent a ngle , & end treatment). ::J ~x / Ul Q) ~ Will 100 -year desig n storm ru noff be co nta in ed withi n easement(s) o r platted drainage ROW in all instan ce s? --Ye s --No If "no " ex pla in : STORMW ATE R DESIGN GU IDELINES Effective February 2007 Pag e 14 of 26 APPEND IX . D : TEC H . DES IGN SUMMAR Y As Revi sed Feb ru ary 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -Drainage Conce~t and Desig n Parameters I Continued (Page 4 .6) Stormwat er Manage ment Concept (cont inued) W it hin O r Serving Subj ect Prop erty (Pha se, or S ite) (c ontin ued ) Are roadside ditches used? No __ Yes If so , provide the following : Cf) Is 25-year flow contained with 6 inches of freeboard throughout? __ Yes No Q) --..c _.g Are top of banks separated from road s houlders 2 feet or more? __ Yes --No 0 Are all ditch sections trapezoidal and at least 1.5 feet deep ? Yes No Q) ---- -0 For any "n o" answers provide location(s) and explain : ·u; -0 C1l 0 0::: If conduit is beneath a swale , provide the following info rmation (eac h instance). Instan ce 1 Describe general location, approximate length : Cf) Q) Is 100-year design flow contained in conduit/swale combination? Yes No >----- lw If "no " explain : c Space fo r 100-year storm flow? ROW Ease m ent Width 0 C1l z tl Swale Surface type , minimum Conduit Type and s ize , minimum and maximum x i~ and maximum slopes : slopes , design storm : 0 C'-· ~ "O .!!:. "O Inlets Des cribe how conduit is loa ded (from streets/storm drains , inlets by type ): Q) C1l c ;., c C1l c ..c C1l u ..__ c 0 -Q) c Access Describe how maintenance access is provided (to swale , into conduit): 0.. 0 0 ~ -0 E :J 0 _Q,? --c c ·-Inst an ce 2 Describe general location , approx imate length: Q) "O E Q) C1l Cf) Cf) :J Cf) Q) Is 100-year design flow conta ined in co nduit/swale co mbi nation ? c "O Yes No 0 "> ---- ~ 0 If "no " explain : ..__ c 0.. ..a a; Space for 100-year storm flow? E Q) ROW Easement Width 0 ..c u Cf) Swale Surface type , minimum Condu it Type and size , minimum and ma ximum ...... Q) :J ~ and maximum s lopes : s lo pes , design storm : "O c C1l 0 0.. u Q) Inlets Describe how conduit is load ed (from streets/storm drains , inlets by type ): --Cf) _Q,? c C1l ~ 3; Cf) Q) ~ A ccess Des c ribe how ma intenance access is provided (to swale , into conduit): STORMWATER DESIGN GUIDELINES Effective February 20 07 Page 15 of 26 APPE NDI X . D: TEC H . DES IGN SUMMARY As Revi sed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Co ntinued (Page 4.7) Stormwater Management Concept (continued) W ithin Or Serving Subject Property (Phase , or Site) (continued) c co Q_ E x 0 w ~ If "yes " pro vide the foll owing in f ormatio n for eac h in sta nce: Instance 1 Describe general location , approxima te length, surfac ing : :g C/l Is 100-year design flow conta ined in swa le? __ Yes __ No Is swa le wholly c ~ within drai nage RO W ? __ Yes __ No Ex pl a in "no " a nswe rs: .; I !--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ u Access Describe how maintenance access is prov ide : Q) '-0 ; z i x1 !--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Instance 2 Describe general location , a pproximate le ngth , surfaci ng : Q) 'i:: <'· ::i C/l .0 c :5 Q) o E £ ~ "3: al ~ a ~s C/l 0 0:: ~ .S2 C'· .0 ::i Cl. al c C/l ~ 0 Cl. Cl. x e w Cl. C/l C/l c Q) Q) >- I I Cl. E ~ J xi 0 Is 100-yea r des ign flo w co ntai ned in swal e? __ Yes __ No Is swale wholly within dra inage ROW? __ Yes __ No Ex plain "no " a nswers : Access Describe how ma intenance access is prov id ed : Instance 3, 4 , etc. If swales are used in more tha n two insta nces, attach sheet providing a ll above info rmation for each instance. "New" channels : W ill any area(s) of conce ntrated flow be c hann e li zed (deepened, widened , or straig htened) or otherwise altered? __ No __ Yes If only slightly shaped, see "Swales " in this Part. If creating side banks , provide information below. Will desig n replicate natura l cha nnel? __ Yes __ No If "no", for each instance describe sectio n sha pe & area , flow li ne slope (mi n . & max.), surfaces , and 100-year design flow , and amo unt of freeboard : Instance 1 : Instance 2 : Instance 3 : STORMWATER DESIGN GUIDELINES Effective February 2007 Pag e 16 of 26 APPENDI X. D : TEC H . DES IGN SUMMARY As Revi sed Feb ruarv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY P art 4 -D rainage ConceQt and Design Parameters I Continued (Page 4.8) Stormwater Management Concept (continued) W it hin Or Serving Subject Property (Phase , or Site) (con t inued) Existing channels {small creeks}: Are t hese used? --No --Yes If "yes " provide t he infor mation below . Will small creeks and their floodplains remain undisturbed? __ Yes No How many disturbance instances? Identify each planned location : For each location , describe length and general type of proposed improvement (including floodpla in cha nges): For each location , describe section shape & area , flow line slope (min . & max.), surfaces , and 100-year design flow. ~ "O (!) :::l c ~ Watercourses (and tributaries}: Aside from fringe changes , are Regulatory 0 Waterco urses proposed to be altered? __ No Yes Explain below . ~ -- rJJ c Submit ful l report describing proposed changes to Regu latory Wate rcourses . Address (!) existing a nd proposed section size and shape , surfaces, alignment, flow line changes , E (!) length affected , and capacity , and provide full documentation of a nalysis procedures > e and data . Is full report submitted? Yes No If "no " explain : 0.. -- E - Q.i c c ro A ll Pro~osed Channel Work : For all proposed cha nnel work , prov ide information ..c u requested in next t hree boxes . If design is to replicate natural channel , identify location and length here , and describe design in Special Design section of this Part of Report . Will 100-year flow be contained with one foot of freeboard? --Yes --No If not , identify location and explain : Are ROW I easements sized to contain channel and required maintenance space? --Yes --No If not , identify location(s) and explain : STORMWATER DESIGN GUIDELINES Effe ctiv e Febru ary 200 7 Page 17 of 26 APPENDI X. D: TECH . DESIGN SUMMARY As Revised Feb ruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .9) Stormwater Managem ent Concept (continued) With in O r Se rvi ng Subj ect Pro pe rty (Ph ase, or S it e) (co nti nued) How many faci lit ies for subject property project? For eac h provide info . below . For eac h dry-type facilitiy : Facility 1 Facility 2 Acres served & design volume+ 10% 100-yr vo lume: free flow & p lugged Design discharge ( 10 yr & 25 yr) Spillway crest at 100-yr WSE? __ yes --no __ yes --no Berms 6 inches above plugged WSE? __ yes --no __ yes --no Ex plain any "no " answers: Cf) Q) >- I For each facility what is 25-yr design Q , and design of outlet structure? 0 Facility 1: z x j Facility 2 : Do outlets and spillways discharge into a publ ic facility in easement or ROW? C'-· Facility 1 : __ Yes --No Facil ity 2 : --Yes --No "O Q) If "no " explain : Cf) 0 0.. 0 '-0... Cf) For each , what is velocity of 25-yr design discharge at outlet? & at spillway? Q) ~ Facility 1: & Fa c ility 2: & "(::i co Are energy dissipation measures used ? No Yes Describe typ e and LL ---- c location : 0 ~ Q) al 0 Q) ~ For eac h , is spi ll way surface treatment other than c oncrete? Yes or no , and describe : Fa c il ity 1: Facility 2 : For each , what measures are taken to prevent erosion or scour at rece iving fa c ili t y? Facility 1: Fac ility 2: If berms are used give heights , slop e s and surfa c e treatments of sides. Fa c ility 1 : Fa c ility 2 : STORMWATER DES IGN GUIDELINES Effective Februa ry 2 007 Pag e 18 of 26 APPENDI X . D : TECH. DES IGN SUMMARY As Revise d Fe bru ary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainag e Conce~t and Design Paramete rs I Co ntinued (Page 4 .10) Stormwater Management Concept (con t inued) W it h in O r Se rv ing Subject Prop e rt y (Ph ase, o r Si t e) (c o ntin ued) Do structures comp ly with B-CS Specifications? Yes or no , and explain if "no ": Faci lity 1; tf) <ll :;::: =:o ~ <ll Faci lity 2: LL :J c c:;::::; 0 c :;::::; 0 c u <ll~ Q) For add itiona l facilities provide all same information on a separate sheet. 0 Are parki ng areas to be used for detention? __ No --Yes What is ma x imum depth due to required design storm ? Road s ide D itc hes : Will culverts serve access driveways at roadside ditc hes? --No --Yes If "yes ", provide information in next two boxes . W ill 25 -yr . flow pass without flowing over driveway in all cases? --Yes --No W ithout causing flowing or stand ing water on public roadway? --Yes --No Designs & materials comply w ith B-CS Techn ical Specifications? __ Yes --No Ex plain any "no " answers : C'· en Ol c "iii Are culverts parallel to public roadway alignment? Y es No Exp lain : tf) 0 ----u tf) <ll <ll ro >- > I ·.:::: Creeks at Pr ivate Dr ives : Do private driveways , drives , or streets cross drainage a. ro ways that serve Above-Project areas or are in publ ic easements/ ROW ? -0 0 No Yes If "yes " provide information below. <ll z ----~x I How many instances ? Describe location and prov ide information below. <ll Location 1: ..2: :J u <ll Locat ion 2: ~ Location 3: For each location enter value for : 1 2 3 Design year passing without toping travelway? Water depth on travelway at 25-year flow? Water depth on travelway at 100-year flow? Fo r more instan ces describe location and same information on separate sheet. STO RMWATER DES IGN GU IDELINES Effecti ve Februa ry 2 007 Pag e 19 of 26 APPENDI X . D : TE CH . DESIGN SUMMARY A s Revi sed Febru ary 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Co ntinued (Page 4 .11) Stormwater Managemen t Concept (continued) W it hin Or Serv ing Subj ect Property (Pha se , or Site) (continued) Named Regulato!)l Watercourses {&Tributaries}: Are cu lverts proposed on these facilit ies? _x_ No __ Yes , then provide ful l report documenting assumptions , criteria , analysis , computer programs , and study findings that support proposed design (s). Is report provided? __ Yes --No If "no", exp lain: Qi Arterial or Major Collecto r Streets : W ill culverts serve these types of roadways? Cll No Yes How many instances? For each ide ntify the £ Ul ---- Cll location and provide t he information be low. Ul -cu Instance 1: Cll ..__ >-~ I~ Instance 2 : Instance 3 : c 0 o~ Yes or No for t he 100-year design flow : 1 2 3 z E xii Headwater WSE 1 foot be low lowest cu rb top ? Spread of headwater with in ROW or easement? E C'· cu Is ve locity limited per c onditions (Tab le C-11 )? Ul Ul g'-o Explain any "no" answer(s): ·-c ~ cu 0 c ..__ 0 u~ >-cu cu u :;: ..Q -0 Cll cu ..0 Minor Collector or Local Streets : Wi ll c ulverts se rv e these types of streets? 0 ·-..__ ..__ u u x No Yes How many instances ? for each identify th e ·-Ul -Cll - ---.g -0 location and provide the information be low: a_ Cll ...... a_ Instance 1: cu~ -0 >-Instance 2 : Cll c ~cu -Instance 3: Ul 0 t Ul Cll Cll 2: u Fo r each instance enter va lue , or "yes " I "no " for : 1 2 3 ::J c u cu Design yr . headwater WSE 1 ft . bel ow curb top ? Cll u=; ..__ c <( ·-100-yr . max. depth at street crown 2 feet or les s? Cll 0 Product of velocity (fps ) & depth at c rown (ft )= ? E ..__ g Is velocity limited per cond itions (Table C-11 )? Limit of down stream analysis (feet )? Exp lain any "no" answe rs : STO RMW ATER DESIGN GU IDELINES Effective Febru ary 20 07 Page 20 of 26 APPENDI X. D : TECH . DES IGN SUMMA RY As Revi sed February 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t and Design Parameters I Continu ed (Page 4.12) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase , or Site) (continued) All Proposed Culverts: For al l proposed culvert fa ciliti es (except driveway/roadside ditch intersects) prov ide information requested in next e ight boxes . Do culverts and trave lways intersect at 90 degrees? Yes -- -- No If not , identify location(s) and intersect angle(s), and justify the design(s): Does drainage way alignment change wi thi n or near lim its of culvert and surface d approaches thereto? __ No --Yes If "yes " identify lo cation(s ), desc ribe change(s), and justification : Are flumes or condu it to discharge into culvert barrel(s)? __ No __ Yes If yes , identify location(s) and provide justifi cation : ~ Are flumes or conduit to discharge in to or near surfaced approaches to cu lvert ends? -0 (!) ::J No Yes If "yes " identify location (s), describe outfall des ign treatmen t(s ): c ---- ~ 0 -2- (/) t (!) ~ ::J Is scour/erosion protection provided to ensure long term stability of c ulvert structural 0 components , and surfacing at culvert ends? --Yes --No If "n o" Identify locations and provide justification (s): W ill 100-yr flow and spread of backwater be ful ly contained in street ROW , and /or drainage easeme nts / ROW? __ Yes --No if not , why not? Do appreciable hydrau lic effects of any culvert ex tend downstream or upstream to neighboring land (s ) not encompassed in subje ct property? --No --Yes If "yes " des c ribe lo cation (s ) and mitigation measures: Are all cu lvert des igns and materials in comp lian ce with B-CS Tech. Specification s? --Yes --No If not , ex plain in Special Des ign Se ction of th is Part. STORMWATER DESIGN GU IDELINES Effectiv e Febr uary 2 007 Page 21of26 APPENDI X . D: TECH . DES IGN SUMMAR Y As Revi sed Februa ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Pa rameters I Cont inued (Page 4 .13) Stormwater Management Concept (conti nued) W ithin O r Servi ng Subject Property (Phase , o r Site) (co nt i nued) Is a bri dge included in pla ns fo r subj ect property pro j ect? x No Yes ---- If "yes " provide t he fo llowing informat ion. Name (s ) and functional class ificat ion of the roadway(s)? What dra inage way (s) is to be crossed? ~ en Q) en "O ·c co A full report supporting al l aspects of the proposed bridge (s ) (structural , geotec hnical , hydrologic , and hydraulic factors ) must accompany this summary report . Is the report provided? --Yes --No If "no" explain : Is a Sto rm wate r Prov ide a genera l descript io n of planned t echniques : £ Pollutio n Prevention An erosion control drawing has been included with (ii Plan (SW3P ) the plans . The SW3P will be the responsibility of :::s a estab li s hed for ..._ project co nstruction? the contractor . (]) ro x s No Yes ---- Specia l Designs -Non-Traditional Methods Are any non-trad it ional methods (aquatic echosystems , wetland -type detention , natural stream replicat io n, BMPs for water quality , etc .) proposed for any aspect of subject property project? x No Yes If "yes " list ge nera l type a nd location be low . ---- Provide f ull report about th e proposed spe ci al design (s) incl udi ng ra ti onale for use and ex pecte d benefits . Report must substantiate that stormwater manageme nt object ives will not be compromised , and that maintenance cost wil l not excee d th ose of trad it ional design so lution (s ). Is report prov ided? --Ye s --No If "no " ex pla in: STO RM W ATE R DESIGN GU IDELIN ES Effective Febru ary 200 7 Page 22 of 26 APPENDI X. D : TECH . DESIGN SUMMARY A s Revi sed February 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Conti nu ed (Page 4 .14) Stormwater Management Concept (continued) W ith i n Or Serving Subject Property (Phase, or S ite) (c onti nued) Specia l Des igns -Deviati on From 8-CS T echnical S p ecifications If an y desig n(s) o r materi al(s) of tradit ional runoff-handling fac ili ties deviate from provisions of B-CS T ech nica l S pecificatio ns , check type faci lit y(ies) and exp lain by s pecifi c detai l element. Dete ntion e lements __ Drain system elements --Cha n nel features -- Culvert f eatures Swales D itch es Inlets Outfalls ------ ---- __ Valley gutters __ Bridges (explain in bridge re port) In t a bl e below b ri efly ide nti fy spec ific e lement, just ificatio n fo r deviatio n(s). Specific De tai l Element Ju stification fo r Deviat ion (attach add itional sheets if needed) 1) 2) 3) 4) 5) Have elements been coo rd in ated wi th t he City En g ineer or he r/h is desig nee? For each item above provide "yes " or "no", action d ate , and sta ff name : 1) 2) 3) 4) 5) Design Parameters Hydrology Is a map(s) showi ng all Design Drainage Areas provided? x Yes No ---- Briefly summa rize the range of app lications made of the Rat ional Formu la: Determination of flow rates for inlets and pipes along the roadway . What is the size a nd location of largest Design D rainag e Area to which t he Rational Fo r mula has been applied? 4.35 -ac res Lo catio n (or identifie r): Drainage Area 158 STORMWATER DESIGN GUIDELINES Effective Feb ruary 2007 Pag e 23 of 26 AP PENDI X. D: TEC H. DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Pa r ameters I Co ntinued (Page 4 .15) Design Parameters (continued) Hydrology (continued) In mak ing determ inations for time of con centration , was seg m ent ana lysis used ? x No Yes % In approximate ly what percent of Design Drainage Areas? As to intensity-duration-frequency and ra in depth criteria for determ ining r unoff flows , were any crite ria other than those provided in these Gu ideli nes used? _ x -No --Y es If "yes " ide nt ify type of da ta , source(s), and w here applied : Fo r each of the stormwate r management features listed be lo w ident ify t he storm return frequen c ies (year) analyzed (or checked ), and that used as the basis for design . Feature A nalys is Year(s ) Desig n Year Sto rm dra in system for arte ri al and c ollector streets 10, 100 10 , 100 Storm drain system for local streets 10 , 100 10 , 100 Open channe ls N/A N/A Swale /buried condu it combination in lieu of channel N/A N/A Swa les N/A N/A Roadside ditches and cu lverts serving them N/A N/A Detentio n facilities : spillway crest and its outfa ll N/A N/A Deten ti on faci lit ies : o utlet and conveyance structu re (s) N/A N/A Detention facilities : volume when outlet plugged N/A N/A Cu lv erts serv ing private drives or streets N/A N/A C ulverts serv ing public roadways 2,5, 10,25,50, 100 2,5 , 10 ,25,50 , Bridges : prov ide in bridge report. N/A N/A Hy draulics What is t he range of design flow velocities as o ut li ned below? Design flow veloc ities ; Highest (feet pe r second) Lowest (feet per se cond) Streets and Storm Drain Sys tems Roughness coefficients used : For condu it type(s) RCP STOR MWATE R DESIGN GUID ELI NES Effective Fe bruary 20 07 Gutters Conduit Culv e rts Swales Channels 6 .58 11.2 ------------------ 0.00 3.24 ------------------ Provide the summary information o utlined below : For street gutters : _ HOPE Page 24 of 26 0.024 Coefficients : 0.014 0.014 APPEND IX . D : T EC H. D ES IGN S UM MA RY A s Re v ise d Febru ary 200 8 100 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 - D rainage Conce~t and Desig n Parameters I Continued (Page 4.16) Design Parameters (continued) Hydraulics (cont inued ) Street a nd Storm Dra i n Sys tems (continued) For the following, are assumptions other than all owable per G uidelines? In let coefficients? x No Yes Head and frictio n losses x No Yes -- ------ Exp lain any "yes " answer: In conduit is velocity genera ll y increased in the dow nstream di rection ? x Yes No ---- Are e levatio n drops provided at in lets , manholes , and junction boxes ? x Yes No -- -- Exp lain any "no " answers: Are hydraulic grade li nes calculated and shown for design sto rm ? x Yes No ---- For 100-year flow conditions? x Yes No Explain any "no" answers : ---- What ta ilwater conditions were assumed at outfall point (s) of the storm dra in system? Identify each location and expla in : 100 year water surface elevations in existing creeks. Ope n Chan nel s If a HEC analysis is uti lize d , does it follow Se c Vl.F .5.a? ~Yes __ No O ut side of straight sections , is f low regime within li m its of sub-critical flow? ~Yes __ No If "no " list locations and explain: C ulverts If plan sheets do not provide the following for each culvert , describe it here . For ea ch design discharge , wi l l operation be o ut let (barre l) control or inlet control? Entrance , friction and exit losses : Entrance Coef.: 0.50 Exit Coef: 1 . 0 Friction 'n': 0.014 B ridg es Provide all in bridge report STORMWATER DESIGN GU IDELINES Effective February 2007 Page 25 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised Febr uary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Conti nued (Page 4.17) Design Paramet ers (continued) Computer Soft ware What computer software has been used in t he ana lys is and assessment of stormwater management needs and/or the deve lopment of fac ility designs p ro posed for subj ect property project? List them below, being sure to identify the software name and version, the date of the version , any applicab le patches and t he publ isher Microsoft Excel Spreadsheet Part 5 -Plans and Specifications Require m ents for submitta l of construct io n drawings and specificat ions do not differ due to use of a Tech nica l Design Summary Report. See S ection 111 , Paragraph C 3 . Part 6 -Conclusions and Attestation Conclusions Add any concluding information here : Att est ation Prov ide attestation to t he accuracy and completeness of t he foregoi ng 6 Parts of this T ech nical Desiq n S ummary Drainaqe Report by signing and sea ling below. ''This report (plan) for the drainage design of the deve lopment named in Part B was prepared by me (or under my supervision) in accordance with provisions of the Bryan/College Station Unified Drainage Design Guidelines for the owners of the property. All licenses and permits required by any and all state and federal regulatory agencies for the proposed drainage improvements have been issued or fa ll under applicable genera l permits." --""'~~''\\, f ~I ,...-..;'(..\.;:· T~· ., / (Affix Seal} ..:-,.:-...'lf:.:····~·:"" .. :; .. -11 o \l CJ , I f ,. -,, ,. , ··.v ) "" . ,...,,__ -,, 2-7JI : * ./ }}; \" ,, fl I r*: Jo ~*J LiceJ <jed r essiona l Engineer ~:ir:f·ERY"l.:"r105~r~TSON~ f ................................ ,; a.1 t/,-I ·. 9 1 , 4 5 : ,; I ·-z ~ r,~·· t.t 1 :CJ::; State of Texas PE No. 7 t,"b,,;:,:.~ICENS~;°? .. ·:.&~ STORMWATER DESIGN GUIDELINES Effe ctive February 2007 Page 26 of 26 '\ '· .st:' . • • c'.'""" -\\ v/ONA\. ~·· --''"'-'"""-- APPENDIX. D : TECH. DESIGN SUMMARY As Revised February 2008 <( :!: :!: w Cl 0 0 Cl:'. w ...J ...J ...J <( <( c.. <( .._ .._ w w 0 i== I-Cl Cl Cl:'. ...J z <( z z (!) <( w z w (.) <( ::c <( <( w ...J > ::!< ...J ...J I-...J z <( w <( Cl w <( Cl:'.(!) Cl:'. ...J ~ iii I-Cl w > I-Wz w ...J Cl:'. 0 z Cl:'. w <( 0 >w > <( Cl I-::J <( Cl:'. c.. I-0 ...J 0 .._ NO. AC. 0.4 0.52 0.9 ft. ft. 1.3 2.66 0.00 2.66 0.00 1.38 140.0 2.0 1.4 0.66 0.00 0.66 0.00 0.34 135.0 2.0 1.5 0.00 0.00 0.00 0.00 0.00 136.0 3.0 1.6A 0.67 0.00 0.67 0.00 0.35 136.0 3.0 1.6B 0.71 0.00 0.71 0.00 0.37 137.0 4.0 4.1 0.92 0.00 0.92 0.00 0.48 140.0 7.0 4.2 0.60 0.00 0.60 0.00 0.31 140.0 7.0 4.3 0.59 0.00 0.59 0.00 0.31 141.0 8.0 4.4 0.30 0.00 0.30 0.00 0.16 138.0 5.0 4.5 0.00 0.00 0.00 0.00 0.00 139.0 6.0 4.5A 2.09 0.00 2.09 0.00 1.09 285.0 6.0 4.5B 4.04 0.00 4.04 0.00 2.10 65.0 1.0 8.1 2.05 0.00 2.05 0.00 1.07 1.0 1.0 3.1 0.82 0.00 0.82 0.00 0.43 285.0 4.0 3.2 2.40 0.00 2.40 0.00 1.25 15.0 3.0 3.3 0.39 0.00 0.39 0.00 0.20 185.0 4.0 3.4 0.46 0.00 0.46 0.00 0.24 185.0 4.0 3.5 0.53 0.00 0.53 0.00 0.28 186.0 5.0 5.1 2.87 0.00 2.87 0.00 1.49 187.0 6.0 6.2 2.14 0.00 2.14 0.00 1.11 188.0 7.0 7.1 2.85 0.00 2.85 0.00 1.48 189.0 8.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Pebble Creek Phase 70 :!: :!: 0 0 ...J ...J .._ .._ >-Cl:'. ::c Cl:'. I-ti 0 w I-w I-0 ~ (!) ~ ...J 0 I-0 ...J w ::J ~ ::J ...J w ~ rn "' "' (!) ...J (!);;: > (.) ::J !:! 0 ~ 0 ft. ft. ft/s min min In/Hr cfs In/Hr cfs 180.0 1.8 1.2 4.3 10.0 6.33 8.8 7.7 10.6 450.0 2.0 1.2 8.3 10.0 6.33 2.2 7.7 2.6 451.0 3.0 1.4 6.8 10.0 6.33 0.0 7.7 0.0 451.0 3.0 1.4 6.8 10.0 6.33 2.2 7.7 2.7 452.0 4.0 1.7 5.9 10.0 6.33 2.3 7.7 2.8 455.0 7.0 2.2 4.6 10.0 6.33 3.0 7.7 3.7 455.0 7.0 2.2 4.6 10.0 6.33 2.0 7.7 2.4 456.0 8.0 2.3 4.3 10.0 6.33 1.9 7.7 2.4 453.0 5.0 1.8 5.3 10.0 6.33 1.0 7.7 1.2 454.0 6.0 2.0 4.9 10.0 6.33 0.0 7.7 0.0 110.0 2.0 1.2 5.3 10.0 6.33 6.9 7.7 8.4 200.0 4.0 1.8 2.4 10.0 6.33 13.3 7.7 16.2 50.0 5.0 6.3 0.1 10.0 6.33 6.7 7.7 8.2 453.0 4.0 1.3 9.7 10.0 6.33 2.7 7.7 3.3 415.0 3.0 1.7 4.2 10.0 6.33 7.9 7.7 9.6 285.0 2.0 1.3 5.8 10.0 6.33 1.3 7.7 1.6 302.0 2.0 1.3 6.1 10.0 6.33 1.5 7.7 1.8 303.0 3.0 1.6 5.2 10.0 6.33 1.7 7.7 2.1 304.0 4.0 1.7 4.7 10.0 6.33 9.4 7.7 11.5 305.0 5.0 1.9 4.3 10.0 6.33 7.0 7.7 8.6 306.0 6.0 2.1 4.0 10.0 6.33 9.4 7.7 11.4 0 "' 0 c; "' "' ~ !:! 0 In/Hr cfs In/Hr cfs 8.6 11.9 9.9 13.6 8.6 3.0 9.9 3.4 8.6 0.0 9.9 0.0 8.6 3.0 9.9 3.4 8.6 3.2 9.9 3.6 8.6 4.1 9.9 4.7 8.6 2.7 9.9 3.1 8.6 2.6 9.9 3.0 8.6 1.3 9.9 1.5 8.6 0.0 9.9 0.0 8.6 9.4 9.9 10.7 8.6 18.1 9.9 20.7 8.6 9.2 9.9 10.5 8.6 3.7 9.9 4.2 8.6 10.8 9.9 12.3 8.6 1.8 9.9 2.0 8.6 2.1 9.9 2.4 8.6 2.4 9.9 2.7 8.6 12.9 9.9 14.7 8.6 9.6 9.9 11.0 8.6 12.8 9.9 14.6 0 0 "' ~ 0 In/Hr cfs 11.1 15.4 11.1 3.8 11.1 0.0 11.1 3.9 11.1 4.1 11.1 5.3 11.1 3.5 11.1 3.4 11.1 1.7 11.1 0.0 11.1 12.1 11.1 23.4 11.1 11.9 11.1 4.8 11.1 13.9 11.1 2.3 11.1 2.7 11.1 3.1 11.1 16.6 11.1 12.4 11.1 16.5 0 0 0 0 c; ~ In/Hr cfs 12.5 17.3 12.5 4.3 12.5 0.0 12.5 4.4 12.5 4.6 12.5 6.0 12.5 3.9 12.5 3.8 12.5 2.0 12.5 0.0 12.5 13.6 12.5 26.3 12.5 13.4 12.5 5.3 12.5 15.6 12.5 2.5 12.5 3.0 12.5 3.5 12.5 18.7 12.5 13.9 12.5 18.6 9/24/2014 10650019-dra.xls Exhibit C-1 0 ...... co: ~ co: I.. ~ ~ ~ = .c ~ I.. I.. ... < ...... ...... ~ . co: 0 ...... "O <o ~ ~ ~ co: :i ~~ 01l 01l c 0 0 co: co: i= = ·= I.. ...... I.. co: ~ ~ ·; u co: ~ A~ co: ..... ... I.. I.. 0 I.. OA ~ 0 E--< ..... rJ:J cfs 1.3 na 11.9 0.0 1 l.9 38 1 .4 na 3 .0 0.0 3.0 3 8 1.5 na 0.0 0.0 0 .0 38 NIA na 3.0 0.0 3 .0 38 1 .6 n a 3.2 0.0 3.2 38 4 .1 na 4.1 0.0 4.1 27 4 .2 na 2 .7 0 .0 2.7 27 4.3 na 2.6 0.0 2.6 27 4.4 na 1.3 0.0 1.3 27 4.45 na 0 .0 0 .0 0.0 27 NIA n a 9.4 0 .0 9.4 38 4 .5 na 18.] 0.0 18.1 38 8 .1 na 9.2 0.0 9.2 27 3 .1 na 3 .7 0.0 3.7 27 3 .2 na 10.8 0 .0 10.8 27 3.3 na l.8 0.0 l.8 27 3.4 na 2.1 0.0 2.1 27 3 .5 na 2.4 0.0 2.4 27 5 .1 na 12.9 0 .0 12.9 27 6 .2 na 9 .6 0.0 9.6 27 7.1 na 12 .8 0 .0 12 .8 27 ...... ~ ~ I.. ...... rJ:J ,.-., "O ~ ~ Q I.. '-' ·:; ~ O" c. ~ 0 ~ c;5 5 .1 % 0 .3% 0 .0% 0 .3% 0.4 % 0 .3% 0.1 % 0.1 % 0 .0% 0 .0% 3.2% 11.9% 1.4% 0.2% 1.9% 0.1 % 0.1% 0.1% 2.7% 1.5% 2 .7% EXHIBIT C-2 INLET COMPUTATIONS Pebble Creek Phase 70 ...... ~ = .... ...... co: 0 0 z ~ ...... ~ ..... = 0 E--< DESCRIPTION .... 1.3 l 1.9 Recessed Inl et on Grade 1.4 3 .0 Recessed Inlet o n Grade 1.5 0 .0 Junction Box NI A 1.6 3 .2 Recessed Low Point Inl et 4 .1 4.1 Recessed Low Point Inlet 4 .2 2 .7 Recessed Low Point Inlet 4 .3 2.6 Recessed Inl et on Grade 4.4 l.3 Recessed Inlet on Grade 4.45 0.0 Junction Box N I A 4.5 18.1 R ecessed Low Point Inlet 8.1 9.2 Recessed Inl et o n Grade 3.1 3.7 Recessed Low Point Inlet 3 .2 10.8 R ecessed Low Point Inlet 3 .3 1.8 Rec essed Low Point Inlet 3.4 2.1 Recessed Low Point Inlet 3 .5 2.4 Recessed Low Point Inlet 5 .1 12.9 Recessed Low Point Inl et 6.2 9.6 Recessed Low Point Inl et 7 .1 12.8 Recessed Low Point lnl e1 L~ ~ ~ I.. ~ p.. ~ u cfs 0.62 0 .62 2.33 2.33 2.3 3 0 .62 0 .62 2.33 0.62 2 .33 2.33 2.33 2 .33 2.33 2.33 2.33 2.33 I.. ~ ... "O ~ 0 "O "O ·;;: c O" 0 I.. ~ I.. co: ~ p.. u .j .j 0 C urb Inlet ft ft 19.33 10 5.8 4.80 5 0 0 0 1.37 5 0 1.77 5 0 l.15 5 0 4.29 5 0 2.18 5 0 0 0 7.77 10 0 14 .89 10 3 1.58 5 0 4.62 5 0 0.75 5 0 0.88 5 0 l.02 5 0 5 .52 10 0 4.12 5 0 5.48 10 0 .c ...... c. ~ ~ "O ~ "O = 0 p.. ft "O "O ~ ~ ~ I.. "O 00 ·-= ·;;: I.. O" 0 ~ ~ I.. p.. ~ p.. ~ co: co: ~ ~ I.. I.. u < < Grate Inlet cfs sq-ft sq-ft 912412014 106500 19 -dra.xls Exhib it C-2 E 0 <: ,_ f--. u 0 z; ..i -[/') f--. ..J ..J z; <: ~ l"'1 -f--o ..J ·c;; z; 0 0 u "' f--. f--. f--. 0 # # Ac. min yr 1.3 1.4 1.4 10.0 10 1.4 1.5 1.7 10.1 10 1.5 1.6b 1.7 10.7 10 1.68 out 8.0 11.5 10 4.1 4.2 0.5 10.0 10 4.2 4.3 0.8 10.2 10 4.3 4.4 1.1 10.3 10 4.4 4.45 2.3 10.9 10 4.45 4.5b 2.3 11.0 10 4.58 1.6b 5.5 11.5 10 8.1 4.4 1.1 10.0 10 3.1 3.2 0.4 10.0 10 3.2 3.3 1.7 10.2 10 3.3 3.4 3.4 11.0 10 3.4 3.5 4.7 12.0 10 ~-:-5-.-out::" -.6.5 13.0 10 5.1 3.3 1.5 10.0 10 6.2 3.4 1.1 10.0 10 7.1 3.5 1.5 10.0 10 EXHIBIT C-3 PIPE SIZE CALCULATIONS Pebble Creek Phase 70 = bJI ·c;; = .. "' bJI .. 0 ·c;; "' "' "' c.. c.. "' 0 "C 0 "' c:: "' c.. (;j -,_ "' "C 0: = "' "' = . ...., -...... ~ 0 "C ::: "' .. 0 :.:: ..i .::, ::: ::: ~ 0 u N = -"C 0 0 0 ·;: .... ;:i [;I;. <: ri: z; r;;::: [;I;. [/') cfs cfs # cfs O/o " 11.9 15.9 1 15.9 2.64 18 14.9 19.8 1 19.8 0.88 24 14.5 19.3 1 19.3 0.84 24 64.6 64.6 1 64.6 0.58 box 4.1 5.5 1 5.5 0.32 18 6.8 9.0 1 9.0 0.85 18 9.4 12.4 1 12.4 1.62 18 19.3 19.3 1 19.3 0.26 30 19.2 19.2 1 19.2 0.25 30 44.9 44.9 1 44.9 138 30 9.2 12.2 1 12.2 0.34 24 3.7 4.9 1 4.9 0.25 18 14.3 19.1 1 19.1 0.82 24 27.9 27.9 1 27.9 0.53 30 37.7 37.7 1 37.7 0.37 36 _4_9.9 49.9, 1 49.9 0.65 36 12.9 17.1 1 17.1 0.66 24 9.6 12.8 1 12.8 0.37 24 12.8 17.0 1 17.0 0.65 24 •• See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) "' E ::c: f: f--o C,;) a:i _j z; ;> ~ l"'1 l"'1 ,_ > ..J f--. fps ' min 9.0 43 0.08 6.3 226 0.60 6.1 201 0.55 8.1 349 0.72 3.1 32 0.17 5.1 42 0.14 7.0 251 0.59 3.9 34 0.14 3.9 95 0.41 9.1 42 0.08 3.9 32 0.14 2.8 31 0.19 6.1 305 0.84 5.7 339 0.99 5.3 305 0.95 7.1 193 -0.4£ 5.5 32 0.10 4.1 31 0.13 5.4 36 0.11 "C f--. = l"'1 ::c: :c f--. @) C,;) 0 u ~ 1-'l f--. :c min ' ' 10.08 10.68 11.22 12.25 412 10.17 10.31 10.90 11 05 11.45 11.53 10.14 10.19 11.02 12.02 12.97 1343) 10.10 10.13 10.11 9/24/2014 10650019-dra.xls Exhibit C-3 EXHIBIT C-4 PIPE SIZE CALCULATIONS -100 Year Pebble Creek Phase 70 I 1 .~ Q • I i II E Q I -~ ~ -k~o !! :,: ~ 0 E-< '--o Q ~c: '7 r..i i u .s .2:l c.. (ii ! :I: : E "O I E- C.... ..:i i ..:i rFJ "'=] c: ~ =i E-l:f= =:I: E-I < --Q.. Q I C-' -@)[.;i;J f-::·.1 r·:J:w~ r..i l Z :f-. bii~~ ~ .. ~~ ~ :.::1 r..i ,j Z I ~ "-' ~ 0 ! 0 u -~ -0 :2 0 0 0 ~ i N r..i l'"1 I E u ~-_..l:'_ __ L..t:'_~ ___ f-. ____ +--o--+_;::i_-_[;_+-< __ ri:_,_z._,__.[;__ I ri; ~ rn > ..:i i E-f-. ~ J: # # 1Ac. I min lvr cfs cfs # cfs ~ !" fp s ' i m_i_n ----+m-in--+-,---+-, _, 1.3 1.4 1.4 100 100 17 .3 23 .0 1 23 .0 5 .55 18 13 .0 1.4 1.5 1.7 10 .1 101 21 .6 28 .7 1 28 .7 1.85 24 9 .1 1.5 1.6b 1.7 10 .7 102 21 .1 28 .0 1 28 .0 1.77 24 8 .9 1.68 out 8 .0 11 .5 104 94 .0 94.0 1 94 .0 1.22 box 11 .7 4 .1 4.2 0 .5 10 .0 105 6 .0 8 .0 1 8 .0 0 .66 18 4 .5 4 .2 4.3 0 .8 10 .2 106 9 .8 13 .1 1 13 .1 1 .79 18 7.4 4 .3 4.4 1.1 10 .3 107 13 .6 18 .1 1 18 .1 3.41 18 10 .2 4.4 4.45 2 .3 10.9 108 28 .1 28 .1 1 28 .1 0 .54 30 5 .7 4.45 4 .5b 2 .3 11 .0 109 27 .9 27 .9 1 27 .9 0 .53 30 5 .7 4 .58 1.6b 5 .5 11 .5 111 65 .3 65 .3 1 65 .3 2 .92 30 13.3 8 .1 4.4 1.1 10.0 112 13.4 17 .8 1 17 .8 0 .71 24 5.6 3 .1 3 .2 0.4 10 .0 113 5 .3 7 .1 1 7 .1 0 .53 18 4 .0 3 .2 3 .3 1.7 10 .2 114 20 .8 27 .7 1 27.7 1.73 24 8 .8 3 .3 3.4 3.4 11 .0 115 40.6 40 .6 1 40 .6 1.13 30 8 .3 3.4 3 .5 4 .7 12 .0 116 54 .8 54 .8 1 54.8 0 .78 36 7 .8 -a:5-•-out--6 .5 13.0 117 1-7:2 .8 72 .8 1 72 .8 1.37 -36 10 .3 5 .1 3 .3 1.5 100 118 18 .7 24 .9 1 24 .9 1.39 24 7 .9 6 .2 3.4 1.1 10 .0 119 13.9 18 .5 1 18 .5 0 .77 24 5 .9 7 .1 3 .5 1.5 10 .0 120 18 .6 24 .7 1 24 .7 1.37 24 7 .9 ••See Plan & Pro fil e for pi pe slope used (Pipe slo pe >o r= Fri cti on slope) 43 0 .05 226 0.41 201 0 .38 349 0 .50 32 0 .12 42 0 .09 251 0.41 34 0 .10 95 0 .28 42 0 .05 32 0 .09 31 0 .13 305 0 .58 339 0 .68 305 0 .66 193 0 .31 32 0 .07 31 0 .09 36 0.08 10 .05 10.49 11 .05 12 .02 4 2 10 .12 10 .27 10 .72 11 .00 11 .33 11 .51 10 .09 10 .13 10 .76 11 .71 12 .67 13 .28·~ 10 .07 10.09 1008 9/24/20 14 10650019-dra .x ls Exhibit C-4 Inlets FL FL Begin I Pi pe F rom To Uppe r Lowe r WS Elev, 0 10 Di a 1.6b out 223.19 22 1.45 224 .00 64.6 1 box 1.5 1.6b 226.11 223.89 226.1 4 14.50 24 1.4 1.5 234.35 226 .79 228 .33 14 .86 24 1.3 1.4 235 .2 234.85 235.96 11 .94 18 3.5 out 238.7 235.29 236.00 49.93 36 3.4 3.5 240.33 238 .8 240.47 37.67 36 3.3 3.4 243.26 240.8 1 242.48 27.92 30 3.2 3.3 245.72 243.81 245.16 14.35 24 3.1 3.2 245.96 245.75 247.74 3.68 18 4 .5b 1.6b 223.53 223.29 224.53 44 .88 30 4.45 4 .5b 224.16 223.63 226.4 1 19.20 30 4.4 4 .45 224.46 224 .26 227.19 19 .31 30 4.3 4.4 234.36 225 .5 1 227.93 9.3 5 18 4.2 4 .3 237.7 235.46 235.74 6 .78 18 4.1 4 .2 238 .11 237.8 239.02 4. 13 18 5.1 3.3 243.73 243.36 244.00 12.89 24 6 .2 3.4 241.63 241 .37 242 .00 9.61 24 7.1 3.5 239.26 238.8 240.00 12.80 24 8.1 4.4 225.85 225.51 225 .00 9.20 24 EXHIBIT C-5 HYDRAULIC GRADE LINE -10Yr. Sto rm Pebble Creek Phase 7D I Normal Normal I Depth Starting De pth Vel oci ty Ve lo city I Le ngth S f P ip e S Lowe r WS Ele v Uppe r Hf In Out I 349 0 .576% 0 .499% 223.35 224.00 225.09 2.0 1 7.4 9 8.50 201 0 .806% 1.104% 225.04 226 .14 227.26 1.62 11.40 7 .49 226 0 .64 6% 3 .34 5% 227.64 228 .33 235.20 1.91 5.68 1 1.4 0 43 2.539% 0.81 4 % 236.35 236.35 236.70 1.09 0.00 5.68 193 0 .648% 1.767% 236.94 236.94 240.35 1.25 6.97 8.00 305 0 .369% 0 .5 02 % 240.90 240.90 242 .4 3 1.13 7.42 6 .97 339 0.537% 0 .723% 242.56 242 .56 245 .0 1 1.82 5.95 7.42 305 0 .789% 0 .626% 245.21 245.2 1 247.12 2 .4 1 4 .4 2 5.95 3 1 0.241 % 0.677% 246.46 247.74 246.67 0 .07 0.00 4.42 42 1.387% 0.57 1% 225.79 22 5.79 226.03 0 .58 6 .34 6.69 95 0 .254 % 0.5 58% 225.13 226.41 225 .66 0.24 10.38 6 .21 34 0 .257% 0 .588% 225.70 227.19 225.90 0 .09 11.15 6.34 25 1 1.558 % 3.526% 226.26 227.93 235.11 3.91 5.20 10.38 42 0 .818% 5.333% 236.02 236.02 23 8.26 0 .34 5.20 11.15 32 0 .304 % 0.969% 238.48 239.02 23 8.79 0.10 0.00 5.20 32 0.636% 1.156% 244.46 244.46 244 .83 0 .20 0.00 7.40 31 0 .354 % 0.839% 242.37 242.37 242.63 0.11 0.00 6 .10 36 0 .627 % 1.278% 239.85 240.00 240.31 0 .23 0.00 7.67 32 0.325 % 1.063% 226.4 1 226 .4 1 226 .75 0.10 0 .00 6.60 Ending To p Delta Hj WS Elev Inlet Check 0 .13 226.14 227.63 OK 0 .57 228.33 230 .56 OK 0 .76 235.96 238 .68 OK 0 .25 237.69 238 .68 OK 0.12 240.47 24 3.04 OK 0.05 242.48 245.09 OK 0.15 245.16 24 7.6 OK 0. 12 247.74 249.53 OK 0. 15 247.97 249.53 OK 0.04 226.4 1 227.63 OK 0 .54 227.19 228.73 OK 0 .65 227.93 229.45 OK 0 .63 235.74 238.51 OK 0 .76 239.02 24 1.25 OK 0.2 1 239.33 24 1.25 OK 0.43 245.26 247.33 OK 0.29 242.92 244 .95 OK 0.46 240.77 243.07 OK 0.34 227 .09 229.45 OK Q Delta Fu ll 1.4940 60.1 2.2311 22.1 2.7218 38.5 0 .9878 8 .8 2.5706 82.5 2.6099 44 .0 2.4376 32.5 1.7916 16 .7 1.5649 8.0 1.2222 28.9 1.5445 28.5 1.5233 29.3 2.7735 18.4 2.23 14 22.6 1.9244 9.6 2.0748 22 .6 2 .03 13 19 .3 2.3028 23.8 2.3622 2 1.7 Main Inle t In 1.5 1.4 1.3 0 3.4 3.3 3 .2 3.1 0 4.4 4 .3 4 .2 4 .1 4 .1 0 0 0 0 0 912412014 10650019-d ra.x ls Exhibit C-4 I Nets FL FL Begin Pipe From To Upper lower WSBev Q100 Dia Length Sf 1.6b out 223.19 221.45 224 .00 93.96 box 349 1.22% 1.5 1.6b 226.11 223 .89 225.00 2 1.06 24 201 1.70% 1.4 1.5 23 4 .35 226.79 226.00 2 1.56 24 226 1.78% 1.3 1.4 235.2 23 4.85 227.00 17.33 18 43 5.34% 3.5 ou t 238.7 235 .29 236.00 72.76 36 193 1.38% 3.4 3.5 240 .33 23 8.8 226.32 54.82 36 305 0.78% oi.a 1-3 .4 24 3 .26 240.81 226 .32 40 .57 30 339 1.13% 3.2 3.3 245.72 243.81 247 .31 20.82 24 305 1.66% 3.1 3.2 24 5 .96 245.75 226 .87 5 .34 18 3 1 0.5 1% 4.5 b 1.6b 223.53 223.29 216.69 65.26 30 42 2.93% 4.4 5 4.5b 224 .16 223.63 226.32 27.90 30 95 0.54% 4.4 4 .4 5 224 .46 224.26 226.32 28.05 30 34 0.54% 4 .3 4 .4 234 .36 225.51 227.32 13.58 18 251 3.28% 42 4 .3 237.7 235 .46 235.73 9.83 18 42 1.72% 4.1 4.2 238.11 237.8 226.87 5 .99 18 32 0.64% 5.1 3.3 243.73 243.36 244 .00 18.69 24 32 1.34% 6 .2 3.4 241 .63 24 1.37 242.00 13 .9 4 24 31 0.74 % 7.1 3.5 239.26 238.8 240.00 18.56 24 36 1.32% 8 .1 4.4 225.85 225.51 225.00 13 .3 5 24 32 0.68% EXHIBIT C-6 HYDRAULIC GRADE LINE - 1 OOYr. Storm Pebble Creek Phase 7D Norma l Normal Depth Starting Depth Veloci ty Ve locity Ending Top Ending Pipe S Lower W SElev Upper Hf In Out Hj WSHead Inlet WSElev 0.50% 223.95 22 4.00 225 .69 4 .25 8.00 9 .4 0 0.19 228.44 227.63 227.63 1.10% 225 .39 225.3 9 227 .61 3.42 12.54 8.00 0.7 2 229.53 230 .56 22 9.53 3.35% 227 .84 227.84 2 35.40 4.02 5.68 12.54 0.97 236.3 7 238.68 236.37 0 .81 % 236 .3 5 236.35 236.70 2.3 0 5.68 5.68 0.00 238 .65 238 .68 238 .65 1.77% 237.39 237.39 240 .80 2 .66 7.08 13 .15 0 .95 24 1.75 243.04 226.32 0 .50% 241.80 24 1.80 243.33 2.38 7.52 7.08 0 .05 244 .23 245 .09 226.32 0 .72% 24 3 .31 243 .31 245 .76 3.84 6.03 7 .5 2 0.16 247 .31 247.6 24 7.31 0.63% 245.81 247.31 247.72 5.06 4.86 6.03 0 .10 252.47 249.53 226.87 0 .68% 246.6 1 246.61 246.82 0 .16 0 .00 4 .86 0 .18 247 .01 249.53 228.74 0 .57% 225.79 225.79 226 .03 1.23 6.6 1 6.69 0.01 227.03 227.6 3 226.32 0 .56% 225.57 226.32 226.10 0.51 6.78 6.61 0 .02 226.85 228.73 226.32 0.59% 226 .14 226 .32 226.34 0 .18 11.3 1 6 .78 0.6 4 227.14 229.45 227.32 3 .53% 226.45 227.32 235.30 8.24 12 .27 11 .3 1 0.17 235.73 238 .5 1 235.73 5.33% 236 .14 236 .14 238.38 0.72 5.73 12.27 0.91 239.29 24 1.25 226.87 0.97% 238.66 238.66 238.97 020 0 .00 5.73 0 .25 23923 24 1.25 228 .74 1.16% 244 .7 1 244 .7 1 24 5.08 0.43 0.00 8.03 0.50 245.64 247.33 245.64 0 .84% 242.62 242.62 242.88 0.2 3 0 .00 6 .67 0.35 2 43.23 244.95 243.23 1.28% 240 .10 24 0.10 240.56 0.4 8 0 .00 8.3 5 0.54 24 1.12 243 .07 24 1.12 1.06% 226 .66 226.66 227 .00 0.22 0.00 7.24 0.41 227 .4 1 229.4 5 227 .41 De lta a Street Street ROW Main Check De lta Surface \Mdlh Slope Capacity Inlet In Surcharae -0.8 1 6.50 38 0 .60°!. 60.07 1.5 OK 1.03 0.00 38 0.60 % 60.07 1.4 OK 2.3 1 0.00 38 3.6 1% 14 7.34 1.3 Surcharge 0.03 4.62 38 3.61 % 147.3 4 0 OK 16.72 0.00 27 0 .67% 61 .46 3.4 OK 18.77 0 .00 27 0 .61•;. 61.46 3.3 Surcharae 0.29 2.54 27 0 .6 7% 61 .46 32 Sur ch a roe 22.66 0.00 27 0 .67% 61.46 3.1 OK 20.79 0.00 27 0.67"/1 61 .46 0 OK 1.31 0.00 38 0.67% 63.48 4.45 OK 2.4 1 0.00 27 0.671!. 61 .46 4 .4 OK 2.13 0.00 27 2 .28"11 11 3.38 4 .3 OK 2.78 0.00 27 4 .24°!. 154 .62 4 2 OK 14 .38 0.00 27 0.70°1. 62 .82 4.1 OK 12 .51 0.00 27 0 .70°!. 62 .82 0 OK 1.69 0.00 27 0 .67% 61.46 0 OK 1.72 0.0 0 27 0.67% 6 1.46 0 OK 1.95 0.00 27 0 .67% 61.46 0 OK 2.04 0.00 27 2.28% 113.38 0 9124120 14 10650019-dra.xls Exhibit C-5 1/4.:_tFT. r 50' R.O.W. 11 ' 28' B.C. -B.C. Fl ow Area ( 10 yea r) = 3.82 sf !Wetted Perimeter = 24.0 LF ~ 3.00:it 1 /~/FT. I I l TYPICAL 28' PAVEMENT SECTION NTS Q 1.49 = 0.016 L~!~./131 )1h 3.82 \ 24.0 I \ 0.0061* = 9.1 cts ** * = Lowest Street Grade in Phase 70 with largest drainage areas (Quany Oaks) ** = Exceeds all flows in residential streets per Exhibit C-1. 60' R.O.W. 39 ' B.C. TO B.C. 10.5' Flow Area (10 year) = 7.28 sf 1/4" /Ft.- I !Wetted Pe ri meter = 32.08 LF ~ 1/4" /Ft. I I TYPICAL 39' PAVEMENT SECTION NTS Q 1.49 = 0 .016 ~21J, )1/2 7.28 \32.087 \ 0.006* = 19.6 cfs ** * = Lowest Street Grade in Phase 70 (Royal Adelade Loop) ** = Exceeds all flows in collector streets per Exhibit C-1. EXHIBIT D-1 I 10 -year Street Capacity PEBBLE CREEK PHASE 7C COLLEGE STATION, BRAZOS COUNTY, TEXAS lnB AlcCLl/R£ &-BROWN£ £NC/N££RINC/Sl/RVEYTNG, INC. ;Y,:; • 1008 Woodcrffk OrMI, !Ml• /OJ, Co/log• S/olion. TX 77845 • (979) 69J-Jl/Jll Fox: (979) 6!JJ-25M Firm R~. No. F-4-58 I 1/4" /FT. I 50' R.O.W. 1 1' 26' B.C. - B.C. ----------~------------ / Flow Area (100 year) = 12.26 sf Wetted Peri met er = 50.64 LF "..C,/////,~1~1111// Ill J ,,,11111 TYPICAL 28' PAVEMENT SECTION NTS I I 1.49 l 12 26 (13( )1/2 Q = 0 .020 12.26 0.0067* = 29.03 cfs ** 1/4" /FT. I * = Lowest Street Grade in Phase 70 with largest drainage areas (Quany Oaks) ** = Exceeds all flows in residential streets per Exhibit C-1. 60' R.O.W. 39' B.C. TO B.C. 10.5' 1/4" /Ft. ( Flow Area (100 year) = 25.30 sf Wetted Perimeter = 60.80 LF 3 .0 0" 1/4" /Ft. I I TYPICAL 39' PAVEMENT SECTION NTS Q 1.49 = 0.020 l 25 30(!3( )1/2 25.30 0.006* = 81.4 cfs ** * = Lowest Street Grade in Phase 70 (Royal Adelade Loop) ** = Exceeds all flows in collector streets per Exhibit C-1. I I EXHIBIT D-2 100-year Street Capacity PEBBLE CREEK PHASE 7C COLLEGE STATION, BRAZOS COUNTY. TEXAS MR~ McCLURE .!' BROWNE ENC/NffR/NC/SlJRVEYINC. INC. ;:.,:; • 1008 #bodctHk Dn'w0 Su,1• IOJ, C"""9-S/alk>n, TX 778'5 (97!1) 69J-JIJ.J8 Fox: (97!1) 69J-2554 Firm Rrg. No. F-"58 DRAINAGE REPORT FOR PEBBLE CREEK Phase7D College Station, Texas JUNE2014 MBESI# 1065-0019 McCLURE & BROWNE ENGINEERING/SURVEYING, INC. 1008 Woodcreek Dr., Suite 103 ·College Station , Tx. 77845 · (979) 693-3838 Eng ineer Reg . No . F-458 Survey Reg . No 101033-00 Pebble Creek, Phase 7D Stormwater Management Technical Design Summary Report MEES! #1065-0019 PART 1 -Executive Summary Report Section I -Contact Information: Project Designer: Project Developer: Submittal Date: McClure and Browne Engineering and Surveying, Inc. 1008 Woodcreek Drive, Suite 103 College Station , TX 77845 979-693-3838 Pebble Creek Land Company 4500 Pebble Creek Parkway College Station, TX 77845 979-690-0992 June 2014 Section 2 -General Information : Pebble Creek 70 is a phase of the Pebble Creek master planned community to be constructed in south College Station. The total area of the development is approximately 55 acres with a total of 84 lots. The plan is based on the Preliminary Plat submitted May 2013. Section 3 -Project Location : Pebble Creek 7D is located in south College Station near the intersection of Royal Adelade Drive and Pebble Creek Parkway. The entire project site is located within the city limits of College Station. The entire site is located within the Alum Creek and Lick Creek Drainage Basin . A portion of the site is shown to be within the 100-year floodplain . (Fema Firm Map# 48041 C0350E). Based on Table B-1, Appendix B of the Unified Stormwater Design Guidelines, Alum Creek from S .H. 6 downstream is not required to have detention for flood control. Section 4 -Hydrologic Characteristics: The project site is mostly dense trees and underbrush with the heaviest concentrations of vegetation being near the creeks. There is a well defined drainage swale that separates Phase 7D from 7B . This drainage swale conveys stormwater east to Lick Creek. There are no existing drainage easements or ROW on the property . With this development drainage easements will be provided along the paths of conveyance to the existing creek. Stormwater Management Technical Design Summary Report Page 1 of 2 Pebble Creek, Phase 7D Section 5 -Stormwater Management: As stated in Section 3, no detention will be provided for this project. Stormwater will be conveyed by curb and gutter to recessed inlets. The stormwater will be discharged directly into the existing drainage swale or Tributary AC-I of Alum Creek. Proper end treatments and riprap stabilization will be used to prevent erosion . Section 6 -Coordination and Permitting: No coordination or permitting is required for this development. Section 7 -Reference: Exhibit A Exhibit B Exhibit C-1 Exhibit C-2 Exhibit C-3 Exhibit C-4 Exhibit C-5 Exhibit C-6 Exhibit D-1 Exhibit D-2 Appendix D -Technical Design Summary Drainage Area Map (Storm Drain) Rational Formula Drainage Area Calculations Inlet Computations Pipe Size Calculations -10 year storm Pipe Size Calculations -I 00 year storm Hydraulic Grade Line -JO-Year Storm Hydraulic Grade Line -I 00-Year Storm I 0 Year Street Capacity Calculations 100 Year Street Capacity Calculations Stormwater Management Technical Design Summary Report Pebble Creek, Phase 70 Page 2of2 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY The Cities of Bryan and College Station both require storm drainage design to follow these Uni fi ed Stormwater Design Guidelines. Paragraph C2 of Section Ill (Administration) requires submittal of a drainage report in support of the drainage plan (stormwater management plan) proposed in connection with land development projects , both site projects and subdivisions . That report may be submitted as a traditional prose report , complete with applicable maps , graphs , tables and drawings , or it may take the form of a "Technical Design Summary". The format and content for such a summary report shall be in substantial conformance with the description in this Appendix to those Guidelines. In either format the report must answer the questions (affirmative or negative) and provide , at minimum , the information prescribed in the 'Techn ical Design Summary" in this Appendi x . The Stormwater Management Technical Des ign Summary Report shall include several parts as listed below. The information called for i n each part must be provided as applicable. In addition to the requirements for the Executive Summary, this Appendix includes several pages detail ing the requirements for a Technical Design Summary Report as forms to be completed. These are provided so that they may be copied and completed or scanned and digi t ized . In addition, electronic versions of the report forms may be obtained from the City. Requirements for the means (medium) of submittal are the same as for a conventional report as detailed in Section Ill of these Guidelines. Note: Part 1 -Executive Summary must accompany any drainage report requ ired to be provided in connect ion with any land development project, regardless of the format chosen for said report . Note: Parts 2 through 6 are to be provided via the forms provided in this Appendix . Brief statements should be included in the forms as requested , but additional information should be attached as necessary. Part 1 -Executive Summary Report Part 2 -Project Administration Part 3 -Project Characteristics Part 4 -Drainage Concept and Design Parameters Part 5 -Plans and Specifications Part 6 -Conclusions and Attestation STORMWATER MANAGEMENT TECHNICAL DESIGN SUMMARY REPORT Part 1 -Executive Summary This is to be a brief prose report that must address each of the seven areas listed below. Ideally it will include one or more paragraphs about each item . 1. Name , address , and contact information of the engineer submitting the report , a nd of the land owner and developer (or applicant if not the owner or developer). The date of submittal should also be included . 2 . Identification of the size and general nature of the proposed project, including any proposed project phases . This paragraph s hould also include reference t o ST O RM WATER D ESIGN GUID E LIN ES Effective Fe bru ary 2007 Page 1 of 26 APPENDI X. D : T E CH. D ESIGN SUMMARY A s Revise d Febru a ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY applications that are in process with either City: plat(s), site plans, zoning requests, or clearing/grading permits , as well as reference to any application numbers or codes assigned by the City to such request. 3 . The location of the project should be described . This should identify the Named Regulatory Watershed(s) in which it is located, how the entire project area is situated therein, whether the property straddles a watershed or basin divide, the approximate acreage in each basin , and whether its position in the Watershed dictates use of detention design. The approximate proportion of the property in the city limits and within the ET J is to be identified, including whether the property straddles city jurisdictional lines. If any portion of the property is in floodplains as described in Flood Insurance Rate Maps published by FEMA that should be disclosed . 4 . The hydrologic characteristics of the property are to be described in broad terms: existing land cover ; how and where stormwater drains to and from neighboring properties ; ponds or wetland areas that tend to detain or store stormwater; existing creeks , channels , and swales crossing or serving the property; all existing drainage easements (or ROW) on the property, or on neighboring properties if they service runoff to or from the property. 5 . The general plan for managing stormwater in the entire project area must be outlined to include the approximate size , and extent of use , of any of the following features: storm drains coupled with streets ; detention I retention facilities ; buried conveyance conduit independent of streets; swales or channels; bridges or culverts ; outfalls to principal watercourses or their tributaries ; and treatment(s) of existing wate rcourses . Also, any plans for reclaiming land within floodplain areas must be outlined . 6 . Coordination and permitting of stormwater matters must be addressed. This is to include any specialized coordination that has occurred or is planned with other entities (local , state, or federal). This may include agencies such as Brazos County government, the Brazos River Authority, the Texas A&M University System , the Texas Department of Transportation , the Texas Commission for Environmental Quality , the US Army Corps of Engineers, the US Environmental Protection Agency, et al. Mention must be made of any permits , agreements , or understandings that pertain to the project. 7 . Reference is to be made to the full drainage report (or the Technical Design Summary Report) which the executive summary represents . The principal element s of the main report (and its length), including any maps , drawings or construction documents, should be itemized . An example statement migh t be : "One __ -page drainage report dated , one set of construction drawings ( sheets) dated , and a ___ -page specifications document dated comprise the drainage report for this project." STORMWATER D ESIGN GUIDELINES Effecti ve Febru a ry 2007 Page 2 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revi se d Febru ary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Start (Page 2.1) Enaineerina and Desian Professionals Information Engineering Firm Name and Address: Jurisdiction McClure & Browne Engineering/Surveying, Inc. City: Bryan 1008 Woodcreek Dr., Ste. 103 x College Station College Station, Tx 77845 Date of Submittal: Oct 2013 ' Lead Engineer's Name and Contact lnfo.(phone, e-mail, fax): I Other: Jeffery Robertson, PE, PH: 693-3838, FX: 693-2554, jeffr@mcclurebrowne.com Supporting Engineering I Consulting Firm(s): Other contacts: Developer I Owner I Applicant Information Developer I Applicant Name and Address: Phone and e-mail: Pebble Creek Land Company PH: 690-0992 College Station, Tx 77802 wendy.s@pebblecreektx.org Property Owner(s) if not Developer I Applicant (&address): Phone and e-mail : Project Identification Development Name : Pebble Creek Phase 70 Is subject property a site project, a single-phase subdivision , or part of a multi-phase subdivision? Yes If multi-phase, subject property is phase 70 of Legal description of subject property (phase) or Project Area: (see Section II , Paragraph B-3a) If subject property (phase) is second or later phase of a project, describe general status of all earlier phases. For most recent earlier phase Include submittal and review dates . Most earlier phases are completely developed. This is the last phase in this part of the subdivision. Additional property will be developed along Rock Prairie Road and near the business center in the future. General Location of Project Area, or subject property (phase): Generally between Phase 78 and Alum Creek. In City Limits? Extraterritorial Jurisdiction (acreage): Bryan : acres . Bryan : College Station : College Station : _ 55.03 acres . Acreage Outside ET J : - STORMWATER DESIGN GUIDELINES Effective February 2007 Page 3 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Continued (page 2 .2) Project Identification (continued) Roadways abutting or within Project Area or Abutting tracts, platted land , or built subject property: developments : Royal Adelade Drive & Pebble Creek Lick Creek Park Pebble Creek Phase 78 Parkway Pebble Creek Phase 7C Named Regulatory Watercourse(s) & Watershed(s): Tributary Basin(s): Alum Creek & Carters Creek Plat Information For Project or Subject Property (or Phase) Preliminary Plat File #: Final Plat File #: Date : Name: Status and Vol/Pg : If two plats , second name : File#: Status: Date : Zoning Information For Project or Subject Property (or Phase) Zoning Type : R-1 Existing or Proposed? Case Code : Case Date Status : Existing Zoning Type : Existing or Proposed? Case Code: Ca se Date Status: Stormwater Management Planning For Project or Subject Property (or Phase) Planning Conference(s) & Date(s): Participants: Prel i minary Report Required? Submittal Date Review Date Review Comments Addressed? Yes --No --In Writing? When? Compliance With Preliminary Drainage Report. Briefly describe (or attach documentation explaining) any deviation(s) from provisions of Preliminary Drainage Report, if any. STORMWATER DESIGN GU IDELINES Effective Febru a ry 2007 Pag e 4 of 26 APPENDIX. D : T ECH . D ESIGN SUMMARY A s Revi se d Fe bru a ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration I Continued (page 2.3) Coordination For Project or Subject Property (or Phase) Note: For any Coordination of stormwater matters indicated below, attach documentation describing and substantiating any agreements, understandings , contracts, or approvals. Coordination Dept. Contact: Date : Subject: With Other Departments of Jurisdiction City (Bryan or College Station) Coordination With Summarize need(s) & actions taken (include contacts & dates): Non-jurisdiction City Needed? Yes __ No ~ Coordination with Summarize need(s) & actions taken (include contacts & dates): Brazos County Needed? Yes No X -- Coordination w ith Summarize need(s) & actions taken (include contacts & dates): TxDOT Needed? Yes No X -- Coordination with Summarize need(s) & actions taken (include contacts & dates): T AMUS Needed? Yes No x ---- Permits For Project or Subject Property (or Phase) As to stormwater management , are permits required for the proposed work from any of the entities listed below? If so , summarize status of efforts toward that objective in spaces below. Entity Permitted or Status of Actions (include dates) Approved? US Army Crops of Engineers No x Yes --- US Environmental Protection Agency No x Yes --- Texas Comm ission on Environmental Quality No X Yes -- Brazos River Authority No ~ Yes - STORMWATER DESIGN GUIDELINES Effective February 2007 Page 5 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ert:l£ Characteristics I Start (Page 3.1) Nature and Scope of Proposed Work Existing: Land proposed for development currently used , including extent of impervious cover? Land is currently oak covered pasture land . Site __ Redevelopment of one platted lot , or two or more adjoining platted lots. Development __ Building on a single platted lot of undeveloped land. Project __ Building on two or more platted adjoining lots of undeveloped land . (select all __ Building on a single lot, or adjoining lots, where proposed plat will not form applicable) a new street (but may include ROW dedication to existing streets). __ Other (explain): Subdivision __ Construction of streets and utilities to serve one or more platted lots . Development ~ Construction of streets and utilities to serve one or more proposed lots on Project lands represented by pending plats . Site projects : building use(s), approximate floor space , impervious cover ratio . Describe Subdivisions : number of lots by general type of use , li near feet of streets and Nature and drainage easements or ROW . Size of 81 Lots -Single Family Res idential Pro~osed Streets -4,340 LF Project -Is any work planned on land that is not platted If yes, explain : or on land for which platting is not pending? x No Yes -- -- FEMA Floodplains Is any part of subject property abutting a Named Regulatory Watercourse I No __ Yes __x_ (Section II , Paragraph B 1) or a tributary thereof? Is any part of subject property in floodplain I No _ Yes x Rate Map _ 48041 C0350E area of a FEMA-regulated watercourse? -- Encroachment(s) Encroachment purpose(s): __ Building site(s) __ Road crossing(s) into Floodplain areas planned? __ Utility crossing(s) l_ Other (explain): No Back of Lots in Block 39 -- Yes X If floodplain areas not shown on Rate Maps, has work been done toward amending the FEMA- approved Flood Study to define allowable encroachments in proposed areas? Explain . STORMWATER DESIGN GUIDELINES Effecti ve February 2007 Pag e 6 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ert~ Characteristics l Continued (Page 3 .2) Hydrologic Attributes of Subject Property (or Phase) Has an earlier hydrologic analysis been done for larger area including subject property? Yes Reference the study (&date) here, and attach copy if not already in City files . -- Is the stormwater management plan for the property in substantial conformance with the earlie r study? Yes No If not, explain how it differs . No If subject property is not part of multi-phase project, describe stormwater management x plan for the property in Part 4 . --If property is part of multi -phase project , provide overview of stormwater management plan for Project Area here . In Part 4 desc rib e how plan for subject property will comply therewith . Do existing topographic features on subject property store or detain runoff? ~No --Yes Describe them (include approximate s ize , volume , outfall , model , etc). Any known drainage or flooding problems in areas near subj ect property? -X _No --Yes Identify: Based on loca ti on of study property in a watershed , is Type 1 Detention {flood control) needed? (s ee Table B-1 in Appendix B) __ Detenti on is required . --Need must be evaluated . L_ Detention not requ ired . What decision has been reached? By whom? If the need fo r Detention not needed per Appendix B Type 1 Detention How was dete rmination made? must be eva luated : STORMWATER DESIGN GUIDELINES Effecti ve Febru a ry 2 007 Page 7 of 26 APPENDI X . D : TECH . DESIGN SUMMARY A s Rev ised Feb ruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProRert)l Characteristics I Continued (Page 3 .3) Hydrologic Attributes of Subject Property (or Phase) (continued) Does subject property straddle a Watershed or Basin divide? x No Yes If yes , -- -- describe splits below. In Part 4 describe design concept for handling this. Watershed or Basin Larger acreage Lesser acreage Above-Project Areas(Section 11, Paragraph 83-a) Does Project Area (project or phase) receive runoff from upland areas? l No --Yes Size( s) of area( s) in acres: 1) 2) 3) 4) Flow Characteristics (each instance) (overland sheet, shallow concentrated , recognizable concentrated section(s), small creek (non-regulatory), regulatory Watercourse or tributary); Flow determination : Outline hydrologic methods and assumptions : Does storm runoff drain from public easements or ROW onto or across subject property? --No --Yes If yes , describe facilities in easement or ROW: Are changes in runoff characteristics subject to change in future? Explain Conveyance Pathways (Section II , Paragraph C2) Must runoff from study property drain across lower properties before reaching a Regulatory Watercourse or tributary? X No Yes Describe length and characteristics of each conveyance pathway(s). Include ownersh ip of property(ies ). STORMWATER DESIGN GUIDELINES Effective Febru a ry 2007 Page 8 of 26 APPENDIX. D : T ECH . DESIGN SUMMARY As Revi s ed Feb rua rv 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ert~ Characteristics I Continued (Page 3.4) Hydrologic Attributes of Subject Property (or Phase) (continued) Conveyance Pathways (continued) Do drainage If yes , for what part of length? easements % Created by? __ plat , or exist for any __ instrument. If instrument(s), descri be their provisions. part of pathway(s)? No -- Yes -- Where runoff must cross lower properties , describe characteristics of abutting lower property(ies). (Existing watercourses? Easement or Consent aquired?) Pathway Areas Describe any bu i lt or improved drainage facilities existing near the property (culverts , bridges , lined channels , buried conduit, swales , detention ponds , etc). Nearby Drainage Do any of these have hydrologic or hydraulic i nfluence on proposed stormwate r Facilities de s ign ? --No --Yes If yes , expla in : STORMWATER DESIGN GUID E LINES Effecti ve Febru ary 2007 Pa ge 9 of 26 APPENDIX. D: TECH . DESIGN SUMMARY A s Rev ise d Febru ary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Start (Page 4.1) Stormwater Management Concept Discharge(s) From Upland Area(s) If runoff is to be received from upland areas , what design drainage features will be used to accommodate it and insure it is not blocked by future development? Describe for each area , flow section, or d ischarge point. Discharge(s) To Lower Property(ies) (Section II , Paragraph E1) Does project include drainage features (existing or future) proposed to become public via platting? --No --Yes Separate Instrument? No Yes Per Guidel ines reference above, how will __ Establishing Easements (Scenario 1) runoff be discharged to neighboring __ Pre-development Release (Scenario 2) property(ies )? Combination of the two Scenarios -- Scenario 1: If easements are proposed , describe where needed , and provide status of actions on each . (Attached Exhibit# ) Scenario 2 : Provide general description of how release(s) will be managed to pre-development conditions (detention , sheet flow , partially concentrated , etc.). (Attached Exhibit# ) Combination : If combination is proposed , explain how discharge will differ from pre - development conditions at the property line for each a rea (or point) of release . If Scenario 2 , or Combination are to be used , has proposed design been coordinated with owner(s) of receiving property(ies)? documentation . ST ORMWATER DESIGN GUIDELINES Effecti ve Febru a ry 2007 No Pag e 10 of 26 --Yes Explain and provide APPENDIX. D: TECH . DESI G N SUMMARY A s Re vised Fe brua ry 2008 SECTION IX N/A APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.2) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project Will project result in shifting runoff between Basins or Identify gaining Basins or Watersheds and acres shifting : f--~~~~~~~~~~~~~~~~~~~~~~~~~~-4 between What design and mitigation is used to compensate for increased runoff from gaining basin or watershed? Watersheds? x No Yes How will runoff from Project Area be mitigated to pre- development conditions? Select any or all of 1, 2 , and/or 3, and explain below. 1. __ With facility(ies) involving other development projects . 2 . __ Establishing features to serve overall Project Area . 3. __ On phase (or site) project basis within Project Area . 1. Shared facility (type & location of facility; design drainage area served; relationship to size of Project Area): (Attached Exhibit# ) 2 . For Overall Project Area (type & location of facilities): (Attached Exhibit# ) 3. By phase (or site) project: Describe planned mitigation measures for phases (or sites) in subsequent questions of this Part. C'-· "C Q) (/) Are aquatic echosystems proposed? __ No project(s)? __ Yes In which phase(s) or c Q) ~ >-Are other Best Management Practices for reducing stormwater pollutants proposed? 0::: __ No __ Yes Summarize type of BMP and extent of use : (/) c .Ql (/) Q) 0 Oz Jxl Q) ~ If design of any runoff-handling facilities deviate from provisions of B-CS Technical Specifications , check type facility(ies) and explain in later questions. __ Detention elements __ Conduit elements __ Channel features __ Swales __ Ditches __ Inlets __ Valley gutters __ Outfalls __ Culvert features __ Bridges Other STORMWATER DESIGN GUIDELINES Effective February 2007 Page 11 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revi sed Feb ruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .3) Stormwater Management Concept (continued) Within Project Area Of Multi-Phase Project (continued) Will Project Area include bridge(s) or culvert(s)? ~No __ Yes Identify type and general size and In which phase(s). If detention/retention serves (will serve) overall Project Area , describe how it relates to subject phase or site project (physical location , conveyance pathway(s), construction sequence): No detention required . Within Or Serving Subject Property (Phase, or Site) If property part of larger Project Area , is design in substantial conformance with earlier analysis and report for larger area? __ Yes No , then summarize the difference(s): Identify whether each of the types of drainage features listed below are included , extent of use , and general characteristics . Typical shape? I Surfaces? C'-· -0 (1) rJl Steepest side slopes: Usual front slopes: Usual back slopes : rJl :::J (1) rJl >- (1) I .i:::::. Flow line slopes : least Typical distance from travelway: .B '6 typical greatest (Attached Exhibit# ) (1) -0 0 ·u; z !xi Are longitudinal culvert ends in compliance with B-CS Standard Specifications? Yes No , then explain : <{ rJl At intersections or otherwise , do valley gutters cross arterial or collector streets? ..Cl (1) _x_ No Yes If yes explain : ~ C'-· >--- u -0 I 0.' :E ~x $: ::::. Are valley gutters proposed to cross any street away from an intersection? rJl (1) Q3 =§ 0 x No Yes Explain : (number of locations?) ~ D'lZ ----u; -0 I (1) c ..... Ctl <{ STORMWATER DESIGN GUIDELINES Effect iv e Febru ary 2007 Pag e 12 of 26 APPENDIX . D : TECH . DESIGN SUMMARY A s Revi se d February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4-Drainage Concept and Design Parameters I Continued (Page 4.4) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) C'· "O Q) (/) (/) :::J Q) E >- i xl (/) c ·~ ~ Gutter line slopes: Least _ 0.60% Usual . 2.0% _ Greatest _ 6.69% Are inlets recessed on arterial and collector streets? _X __ Yes identify where and why. __ No If "no ", Will inlets capture 10-year design stormflow to prevent flooding of intersections (arterial with arterial or collector)? X Yes __ No If no, explain where and why not. Will inlet size and placement prevent exceeding allowable water spread for 10-year design storm throughout site (or phase)? _ X _Yes __ No If no , explain . Sag curves: Are inlets placed at low points? ~Yes __ No Are inlets and conduit sized to prevent 100-year stormflow from ponding at greater than 24 inches? __X_ Yes __ No Explain "no" answers . Will 100-yr stormflow be contained in combination of ROW and buried conduit on whole length of all streets? X Yes __ No If no , describe where and why. Do designs for curb , gutter, and inlets comply w ith 8 -CS Technical Specifications? _ X _Yes __ No If not, describe difference(s) and attach justification . Are any 12-inch laterals used? _x__ No used . __ Yes Identify length(s) and where Pipe runs between system I Typical _ 60' access points (feet): _ Longest 324' Are junction boxes used at each bend? ~Yes and why. __ No If not, explain where i I >-------------------.-------,----,-------.,,-~ -Are downstream soffits at or below upstream soffits? Least amount that hydraul ic ~ Yes X No __ If not , expla i n where and why: grade line is below gutter line (system-wide): STORMWATER DESIGN GUIDELINES Effective Febru a ry 2007 Page 13 of 26 1.42' (10-year) APPENDIX. D: TECH . DESIGN SUMMARY As Revise d Febru ary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .5) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Describe watercourse(s), or system(s) receiving system discharge(s) below (/) (include design discharge velocity, and angle between converging flow lines). (!) (.J c 1) Watercourse (or system), velocity, and angle? ctl 1ii SD-1, 4.3 fps, 60 deg. c ~ -o -g E 2) Watercourse (or system), velocity, and angle? :J '-c 0 SD-2, 5.8 fps, 90 deg. ·--c . 0 .2 ~.S -E (!) ~ 3) Watercourse (or system), velocity, and angle? (!) E ..... ctl ctl ~(/) ':t:: (/) (!) :J c:s2 0 ·-> ~ e "O Cl.. E ..... For each outfall above , what measures are taken to prevent erosion or scour of '-(!) 0 (!) receiving and all facilit ies at j uncture? ..... .r::. (J) (/) 2 1) SD-1 -Rock rip-rap at end of headwall. ctl '- ctl 2) SD-2 -Rock rip-rap at end of headwall. Cl.. (!) (/) c 3) _£. Are swale(s) situated along property lines between properties? __ No --Yes Number of instances: For each instance answer the following questions . Surface treatments (including low-flow flumes if any): C'-· (/) Q) ~ (/) ..... (!) Flow line slopes (minimum and maximum): (/) >-c ~ I -g 0 CllZ Outfall characteristics for each (velocity, convergent angle , & end treatment). :J ~x i (/) (!) ~ W ill 100-year design storm runoff be contained within easement(s) or platted drainage ROW in all instances? --Yes --No If "no " explain : STORMWATER DESIGN GUIDELINES Effecti ve February 2007 Page 14 of 26 APPENDIX. D : TECH . DESIGN SUMMARY A s Revised Febru a ry 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -D rainage ConceQt and Design Parameters I Con ti n ued (Page 4 .6) Stormwater Management Concept (continued) W ithin Or Servi ng Subject Property (Phase, or Site ) (continued) A re ro ads id e ditc hes use d ? No __ Yes If so, provide the following : en Is 25-year f low con ta in e d w ith 6 inc hes of freeboard throug hout ? __ Yes No Q) ..c -- .B A re top of ba nks se pa rated from ro ad sho ulders 2 fe et or more? __ Yes No Ci -- Q) A re all d itc h secti o ns tra pezoidal and at lea st 1.5 feet dee p? --Yes --No :2 For any "no " answ ers pro v ide lo cati on (s) a nd expl ai n: en "O cu 0 Cl'.'. If conduit is beneath a swale, pro v ide the following in fo rmatio n (each instance). In stance 1 Describe g e ne ra l lo cation , approxi m ate le ngth: en Q) Is 100-ye ar d esig n f low con tai ned in co ndu it/swale c ombinatio n? >---Yes --No lw If "no" explain : c Space for 1 00-year sto rm flow ? ROW Ease m ent W idth 0 cu z u; S wal e Surface typ e, min im um Con duit Type and size , minim um and maximum x i~ and m ax imum s lopes : slo pes, design storm : 0 C'-· :e "O en "O a; cu Inlets Describe how con duit is loaded (from streets/s to rm drains, in lets by type): c >-c cu c ..c cu (..) L.. c S2 Q) c Access Desc ribe how m a inte nance access is pro v ide d (to swa le , into conduit): a. 0 0 ~ ..... 0 E :::s L.. .~ 0 ..... c c ·-Instance 2 D esc ribe g e nera l lo cation , a pprox imate len gth: Q) "O E Q) cu en en :::s en Q) Is 100-ye ar design fl o w conta ined in co nd uit/swale co m b ination? Yes No c "O ·:;;: ----0 If "no" exp lain : ~ 0 L.. c a. .a -Q) Space for 100-year storm f lo w? ROW Ease m e nt W idth E Q) 0 ..c (..) en Swale Su rface type, min im um Co nduit Type a nd s ize , m inim um an d m axim um :!:::: Q) and maximum s lopes : slopes , design sto rm : :::s -ro "O L.. c cu 0 a. Describe how cond uit is loade d (from streets/storm d rains, in lets by type): (..) Q) Inlets --en ~ c cu -9.. 3: en Q) Access Describe how maintenan ce access is prov ided (to s w a le , into conduit): L.. <( STORMW ATER DESIG N GUIDELI NES Effective Febru ary 2007 Page 15 of 26 A PP ENDIX. D : TECH . DESIG N SUMM AR Y As Revis ed Feb ruary 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -Drai nage Conce~t and Design Parameters I Con tinued (P age 4 .7) Stormwater Management Concept (contin ued) Wi th i n Or Serving Subject Property (Phase, or Site) (conti nued) If "yes" provide the fo llowing informatio n for each insta nce : Instance 1 De scribe genera l locati o n , a pproximate le ngth , surfaci ng : c ~ E o._ x 0 w '--~ ui Is 100-yea r desig n f low co ntai ned in sw a le? --Yes --No Is sw ale wholly 0 Q) withi n drai nage ROW ? Y es No Ex pl a in "no" answ ers : c ,_I :::J ---- '- Q) > "(ii A ccess De scri be how ma inte na nce access is pro vid e : u Q) '-0 -z :::J ]xi Instance 2 D escribe g eneral location , approximate length , surfaci ng : Q) ·;:::: C'· :::J Ill .c c :J Q) 0 E £ Q) Ill Is 100 -year desi g n flow conta in ed in swa le? Yes No Is sw ale wholly -~ Cl) ----Q) w ithin d ra inage ROW ? __ Yes No Exp lain "no" an swers : Ill '---~ 0 Cl) s ~ 0 ~ Cl'.: Access Describe ho w mai nte na nce access is pro vid e d : .!:2 .c :::J o._ Instance 3, 4, etc. If swa les are used in m o re t han two instances, attach sheet providi ng all above informati o n for each in stance . "New " channels: W ill any area(s) of con centrated flow be channe lized (deepened , widened , o r stra ighten ed) or ot herwise a ltered? --No --Yes If on ly s lightly shape d , see "Sw a les" in th is Pa rt . If creati ng side ba nks , provid e in formati o n below. C'· "O c Will desi g n replicate natu.ra l c ha nnel? Yes No If "no", for each instance Q) ~ ----- Ill describe section shape & area , flow line slope (min . & max.), su rfaces , and 100-year 0 o._ o._ x design flow , an d a mo unt of free board : 0 w '-o._ Instance 1: Ill Ill c Q) Q) >- E I Q) > Instance 2 : 0 '-o._ E 0 z )xj Instance 3: u ST ORMWATER DES IGN GUID E LI NES Effective Febru ary 2007 Pag e 16 of 26 AP PENDIX. D : TECH . DES IGN SUMMARY As Rev ise d Feb ruary 200 8 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t and Design Parameters I Continued (Page 4 .8) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Existing channels {small creeks}: Are these used? --No --Yes If "yes" provide the information below. Will small creeks and their floodplains remain undisturbed? __ Yes --No How many disturbance instances? Identify each planned location : For each location , describe length and general type of proposed improvement (including floodplain changes): For each location , describe section shape & area, flow line slope (min . & max.), surfaces, and 100-year design flow . ~ "O Q) :::J c ~ Watercourses {and tributaries}: Aside from fringe changes, are Regulatory 0 Watercourses proposed to be altered? __ No Yes Explain below. ~ -- C/) Submit full report describing proposed changes to Regulatory Watercourses. Address c Q) existing and proposed section size and shape , surfaces , alignment, flow line changes , E Q) length affected , and capacity, and provide full documentation of analysis procedures > 0 and data . Is full report submitted? Yes No If "no" explain : L.. --a. E a; c c (ll All Proposed Channel Work: For all proposed channel work , provide information ~ u requested in next three boxes . If design is to replicate natural channel, identify location and length here , and describe design in Special Design section of this Part of Report. Will 100-year flow be contained with one foot of freeboard? --Yes --No If not , identify location and explain : Are ROW I easements sized to contain channel and required maintenance space? --Yes --No If not , identify location(s) and explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 17 of 26 APPENDIX . D: TECH . DESIGN SUMMARY As Revise d February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Pa rt 4 -Dra i nage Conce~t and Design Parameters J Co ntinued (Page 4.9) Stormwater Management Concept (continued) With i n Or Serving Subject Property (Phase, or Site) (con t inued) How m a ny facilitie s for su bject property pro ject? For ea ch provi de info . below. Fo r each dry-type faci liti y: Fa cil ity 1 Faci lity 2 Acres serve d & design vol ume + 10 % 100-yr vol um e : free f low & pl ugg ed Design d ischarge (10 yr & 25 yr ) Spillway crest at 100 -yr WSE ? __ yes --no __ yes --no Berms 6 inc hes ab ov e plu gged WSE? __ yes --no __ yes --no Expl ai n any "no" an s w ers: Cl) Q) >- I For each faci lity wh at is 25-yr design Q, an d design of ou tlet structu re? 0 Facility 1: z xj Facility 2 : Do outlets a nd s pi llwa ys discha rg e into a publ ic faci lity in easeme nt or ROW ? C'· Facility 1: __ Yes --No Facility 2 : --Yes --No "O Q) If "no " ex pl ain : Cl) 0 a.. 0 L.. a.. Cl) For each , w hat is ve lo city of 2 5-yr desig n d ischarge at outl et? & at spill w ay? Q) :e Faci lity 1: & Faci lity 2 : & "t) ro Are energy dissi pation measures used? No Yes Describe type and LL ---- c 0 location: ~ Q) Q) 0 Q) ~ For each , is spi ll way su rface treatment ot her than con crete? Y es or no , and descri be: Facility 1: Facility 2 : For each , wh at mea su res are ta ken to p revent erosion o r scour at recei v ing facility? Faci lity 1: Facility 2: If berms a re use d g iv e heig hts, slopes an d surface t reatments of sides . Facil ity 1: Facility 2: STORMWATER DES IGN GUIDELI NES Effective February 2007 Page 18 of 26 APPENDIX . D : TECH . DESIGN SUM MARY As Revis ed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.10) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Do structures comply with B-C S Specifications? Yes or no , and explain if "no ": Fa cility 1; en ~ =s-g Ql Facility 2: LL :::J c C:.;::; 0 c :.;::; 0 ct.) Ql -al For additional facilities provide all same information on a separate sheet. 0 Are parking areas to be used for detention? __ No --Yes What is maximum depth due to required design storm? Roadside Ditches: Will culverts serve access driveways at roadside ditches? --No --Yes If "yes", provide information in next two boxes . Will 25-yr. flow pass without flowing over driveway in all cases? --Yes --No Without causing flowing or standing water on public roadway? --Yes --No Designs & materials comply with B-CS Technical Specifications? __ Yes --No Explain any "no" answers : C'-· en Q) c en Are culverts parallel to public roadway alignment? __ Yes No Explain : en 0 --..... en t.) Ql (]) -ro >- > I ·;::: Creeks at Private Drives: Do private driveways , drives , or streets cross drainage a. -ro ways that serve Above-Project areas or are in public easements/ ROW? "O 0 No Yes If "yes" provide information below. (]) z ----~x I How many instances? Describe location and provide information below. Ql Location 1: ~ :::J t.) (]) Location 2 : < Location 3: For each location enter value for: 1 2 3 Design year passing without toping travelway? Water depth on travelway at 25 -year flow? Water depth on tra velway at 100-year flow? For more instances describe location and same information on separate sheet. STORMWATER DESIGN GUIDELINES Effecti ve February 2007 Page 19 of 26 APPENDIX. D : TECH . DESIGN SUMMARY A s Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -D r ainage Conce~t and Design Parameters I Continu ed (Pag e 4 .11) Stormwater Management Concept (continued) W ithin Or Serving Subject Property (Phase, o r Sit e) (conti nued) Named Regulato!)l Watercourses {&Tributaries}: A re culve rts p ropose d o n these f acilitie s? _x_ No __ Y es, then provide f ull re po rt docum e nt in g ass umptions , criteria , a na lysi s , c o m pu ter progra m s , a nd study fi nd ings that su pport proposed desig n(s). Is report provi ded? __ Yes --No If "no", expl a in : -Arterial or Major Collector Streets : Will c ul verts se rv e t hes e t ype s of ro adways? a; (J) N o Y es Ho w many insta nces? Fo r each identify the .L: fJl -- -- (J) locati o n a nd provi d e the inform ati o n be lo w . fJl (ii Insta nce 1 : (J) .... >-gi_ I~ Insta nce 2 : Instance 3: c 0 o~ Yes o r No fo r the 100-yea r design flow: 1 2 3 z E xii Headw ater W SE 1 fo ot be low lowest c ur b top? Spread of headwater within ROW or easement? E <'-· co Is velocity li mited per co nditio ns (Table C-11 )? fJl fJl g>-o Expl a in a ny "no" a nswe r(s): ·-c ~co 0 c .... 0 u :;:: >. co co (.) ~ ..Q -0 (J) co ..0 0 ·-........ Minor Collector or Local Streets: W ill culv erts se rv e th ese t ypes of streets? (.) (.) x No Y es How many insta nces? for each identify the ·-fJl -----(J) -g -0 locatio n a nd prov id e t he in fo rm ati o n be low: a. (J) ...... a. Insta nce 1 : co z.. -0 >. Instance 2 : (J) c ~co -Insta nce 3 : 2 0 .... fJl (J) (J) For each instance enter va lue , or "yes" I "no" for: 1 2: (.) 2 3 :::Jc (.) co Desi g n y r . hea dwate r WS E 1 ft . be lo w c urb to p? (J) Ui .... c <( ·-100-y r . max . depth at street cro w n 2 feet o r less? (J) 0 Prod uct of velocity (fps) & d e pth at c ro w n (ft)= ? E .... 0 Is velocity limited per co nditi o ns (Tab le C-11 )? ~ Limit of down strea m a na lys is (f eet)? Explai n a ny "no" a ns wers: STORM W ATE R DESIGN GUIDELI NES Effective Febru ary 2007 Page 20 of 26 APPE NDIX. D: TECH . DESIGN SUMMARY A s Revise d February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4-Drainage Conce~t and Design Parameters I Continued (Page 4.12) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) All Proposed Culverts: For all proposed culvert facilities (except driveway/roadside ditch intersects) provide information requested in next eight boxes. Do culverts and travelways intersect at 90 degrees? --Yes --No If not, identify location(s) and intersect angle(s), and justify the design(s): Does drainage way alignment change within or near limits of culvert and surfaced approaches thereto? __ No --Yes If "yes" identify location(s), describe change(s), and justification : Are flumes or conduit to discharge into culvert barrel(s)? __ No __ Yes If yes , identify location(s) and provide justification : ~ Are flumes or conduit to discharge into or near surfaced approaches to culvert ends? "O Q) No Yes If "yes " identify location(s), describe outfall design treatment(s): :::J c ---- ~ 0 ~ (/) t Q) ~ :::J Is scour/erosion protection provided to ensure long term stability of culvert structural u components , and surfacing at culvert ends? __ Yes __ No If "no " Identify locations and provide justification(s): Will 100-yr flow and spread of backwater be fully contained in street ROW , and/or drainage easements/ ROW? __ Yes --No if not , why not? Do appreciable hydraulic effects of any culvert extend downstream or upstream to neighboring land(s) not encompassed in subject property? --No --Yes If "ye s" describe location(s) and mitigation measures : Are all culvert designs and materials in compliance with B-CS Tech . Specifications? --Yes --No If not, explain in Special Design Section of this Part. STORMWATER DESIGN GUIDELINES Effective February 2007 Pag e 21 of 26 APPENDIX . D: TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4-Drainage Conce~t and Design Parameters I Continued (Page 4 .13) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Is a bridge included in plans for subject property project? x No Yes ----If "yes " provide the following information . Name(s) and functional classification of the roadway(s)? What drainage way(s) is to be crossed? en al Ol ""O ·;:::: co A full report supporting all aspects of the proposed bridge(s) (structural , geotechnical, hydrologic, and hydraulic factors) must accompany this summary report . Is the report provided? --Yes --No If "no" explain : Is a Stormwater Provide a general description of planned techniques : £ Pollution Prevention An erosion control drawing has been included with ro Plan (SW3P) the plans. The SW3P will be the responsibility of ::::i a established for ..... project construction? the contractor . Q) 1il x s --No --Yes Special Designs -Non-Traditional Methods Are any non-traditional methods (aquatic echosystems , wetland-type detention , natural stream reolication , BMPs for water quality, etc .) proposed for any aspect of subject property project? x No Yes If "yes " list general type and location below. ---- Provide full report about the proposed special design(s) including rationale for use and expected benefits . Report must substantiate that stormwater management objectives will not be compromised, and that maintenance cost will not exceed those of traditional design solution(s). Is report provided? --Yes --No If "no" explain: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 22 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Rev is ed February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.14) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Special Designs -Deviation From B-CS Technical Specifications If any des ign(s) or material(s) of traditional runoff-handling facilities deviate from provisions of B-CS Technical Specifications , check type facility(ies) and explain by specific detail element. --Detenti on elements __ Drain system elements --Channel features Culvert features Swales Ditches Inlets Outfalls ---------- __ Valley gutters __ Bridges (explain in bridge report) In table below briefly identify specific element, justification for deviation(s). Specific Detail Element Justification for Deviation (attach additional sheets if needed) 1) 2) 3) 4) 5) Have elements been coordinated with the City Engineer or her/his designee? For each item above provide "yes" or "no", action date , and staff name : 1) 2) 3) 4) 5) Design Parameters Hydrology Is a map(s) showing all Design Drainage Areas provided? x Yes No -- -- Briefly summarize the range of applications made of the Rational Formula: Determination of flow rates for inlets and pipes along the roadway . What is the size and location of largest Design Drainage Area to which t he Rational Formula has been applied? 4.35 -acres Location (or identifier): Drainage Area 158 STORMWATER DESIGN GUIDELINES Effective February 20 07 Page 23 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.15) Design Parameters (continued) Hydrology (continued) In making determinations for time of concentration, was segment analysis used? x No Yes In approximately what percent of Design Drainage Areas? % As to intensity-duration-frequency and rain depth criteria for determining runoff flows , were any criteria other than those provided in these Guidelines used? _ x -No Yes If "yes" identify type of data, source(s), and where applied: For each of the stormwater management features listed below identify the storm return frequencies (year) analyzed (or checked), and that used as the basis for design . Feature Analysis Year(s) Design Year Storm drain system for arterial and collector streets 10, 100 10, 100 Storm drain system for local streets 10, 100 10, 100 Open channels N/A N/A Swale/buried conduit combination in lieu of channel N/A N/A Swales N/A N/A Roadside ditches and culverts serving them N/A N/A Detention facilities: spillway crest and its outfall N/A N/A Detention facilities : outlet and conveyance structure(s) N/A N/A Detention facilities : volume when outlet plugged N/A N/A Culverts serving private drives or streets N/A N/A Culverts serving public roadways 2,5, 10,25,50, 100 2,5, 10,25,50, Bridges : provide in bridge report . N/A N/A Hydraulics What is the range of design flow velocities as outlined below? Design flow velocities ; Gutters Conduit Culverts Swales Channels Highest (feet per second) 6.58 11.2 ------------------ Lowest (feet per second) 0.00 3.24 ------------------ Streets and Stonn Drain Systems Provide the summary information outlined below: Roughness coefficients used : For conduit type(s) RCP STORMWATER DESIGN GUIDELINES Effective February 2007 For street gutters : _ HOPE Page 24 of 26 0.024 Coefficients : 0.014 0.014 APPENDIX . D : TECH . DESIGN SUMMARY As Revi sed Febru a ry 2008 100 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Con tin ued (Page 4 .16) Design Parameters (continued) Hydraulics (continued) Street and Storm Drain Systems (co ntinued) For the following , are assumptions ot her than a ll o wab le per Guid e lines? Inlet co efficients? x No Ye s Hea d and frictio n losses x No Yes -------- Exp lain any "yes" answer: In co nduit is vel o ci ty genera lly increase d in the downstream di rection? x Yes No - --- Are e levatio n d ro ps provi d ed at inl ets , ma nholes, a nd junction bo xes? x Yes No ---- Exp lain any "no " a nsw ers : Are hydraulic grade lines calcu lated a nd shown fo r design storm ? x Yes No ---- For 100-year f lo w conditio ns? x Yes No Expla in any "no " answ ers : -- -- What tailwater c o ndi tions were assumed at outfa ll point(s) of th e storm drain system ? Identify each location and explain : 100 year water surface elevations in existing creeks. Ope n Ch a nnels If a HEC ana lysis is uti lized , does it follo w Sec V l.F .5 .a? ~Y e s __ No Outside of straight sections , is flow regime within limits of sub-critical flow? _x_ Yes __ No If "no" li st location s and expl ain : C ulve rts If p la n s heets d o not provide the follow ing for each culvert , describe it here . For each design d ischarge , will operation be outlet (barrel) co ntrol or in let contro l? Entrance , frict io n and exi t lo sses: Entrance Coef.: 0.50 Exit Coef: 1 . 0 Friction 'n': 0.014 Bridges Provide a ll in bridge report STORMWATER DES IGN GUIDELINES Effe ctive February 2007 Page 25 of 26 APPE NDIX . D : TECH . DES IGN SUMMARY As Rev ised February 2008 SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters I Continued (Page 4.17) --------'------------ 0 es i g n Parameters (continued) _______________ _J Computer Software What computer software has been used in the analysis and assessment of stormwater management needs and/or the development of facility designs proposed for subject property project? List them below, being sure to identify the software name and version, the date of the version, any applicable patches and the publisher Microsoft Excel Spreadsheet Part 5 -Plans and Specifications Requirements for submittal of construction drawings and specifications do not differ due to use of a Technical Design Summary Report . See Section Ill , Paragraph C3 . Part 6-Conclusions and Attestation Conclusions Add any concluding information here : Attestation _______________ _J Provide attestation to the accuracy and completeness of the foregoing 6 Parts of this Techn ical Desi n Summa Draina e Report b si nin and sealina below . ..____ ______________ _ ''This report (plan) for the drainage design of the development named in Part B was prepared by me (or under my supervision) in accordance with provisions of the Bryan/College Station Unified Drainage Design Guidelines for the owners of the property. All licenses and permits required by any and all state and federal regulatory agencies for the proposed drainage improvements have been issued or fall under applicable general permits." Licensed Professional Engineer State of Texas PE No .. ______ _ STORMWATER DESIGN GUIDELINES Effective February 2007 Page 26 of 26 (Affix Seal) APPENDIX. D : TECH . DESIGN SUMMARY As Revised February 2008 I I 3: 3: <( w 0 0 0 0:: w I ..J ..J ..J <( I <( c.. <( u.. u.. w I w 0 j:: t-0 0 0:: ~) z <( z z (!) I <( z w (.) s ~ 1 s <( ..J w :::E ..J z I <( 0 w <( o:: (!) Io:: ..J ~ I t-ow I iii > t-w z w ..J I 0 I z 0:: w <( 0 > w > <( 0 I t-I :J <( 0:: c.. t-0 ..J 0 u.. NO. AC. 0.4 0.55 0.9 ft. !ft. 1 I 0.97 0.00 0.97 0.00 0.53 140.01 2.0 2 3.01 0.00 3.01 0.00 1.66 135.0 2.0 3 2.87 0.00 2.87 0.00 1.58 136.0 3.0 4 2.14 0.00 2.14 0.00 1.18 137.0 4.0 5 0.54 0.00 0.54 0.00 0.30 140.0 7.0 6 2.85 0.001 2.85 0.00 1.57 140.01 7.0 7 ' 0.43 0.00 0.43 0.00 0.24 141.0 8.0 10 I 1.82 0.00 1.82 0.00 1.00 65.0 1.0 11 I 0.66 0.001 0.66 0.00 0.36 1.01 1.0 12 2.09 0.00 2.09 0.00 1.15 285.0 4.0 13 1.45 0.00 1.45 0.00 0.80 15.o: 3.0 14 0.60 0.00 0.60 0.00 0.33 185.0 4.0 15A 2.71 0.00 2.71 0.00 1.49 185.0• 4.0 158 4.35 0.00 4.35 0.00 2.39 186.0 5.0 16A 1.061 0.00 1.06 0.00 0.58 187.0! 6.0 168 0.36 0.00 0.36 0.00 0.20 188.0 7.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Pebble Creek Phase 70 I I 3: 3: I 0 0 I I ..J ..J u.. u.. ~ 0:: ::c 0:: u I u I w t-w u t-(!) t-..J 0 t-t-t-z t-..J ..J 0 w sl ::> w ::> <( w iii V) "' (!) ..J (!) u.. > (.) ::> N "' a ft. ft. lftls min lmin In/Hr cfs lln/Hr cfs 180.0 1.8 1.2 4.3 10.0 6.33 3.4 7.7 4.1 450.0 2.0 1.2 8.3 10.0 6.33 10.5 7.7 12.7 451.0 3.0 1.4 6.8 10.0 6.33 10.0 7.7 12.1 452.0 4.0 1.7 5.91 10.0 6.33 7.4 7.7 9.1 455.0 7.0 2.2 4.6 10.0 6.33 1.9 7.7 2.3 455.0 7.0 2.2 4.6 10.0 6.33 9.9 7.7 12.1 456.0 8.0 2.3 4.3 10.0 6.33 1.5 7.7 1.8 200.0 4.01 1.8 2.4 10.0 6.33 6.3 7.7 7.7 50.0 5.0 6.3 0.1 10.0 6.33 2.3 7.7 2.8 453.0 4.0 1.3 9.7 10.0 6.33 7.3 7.7 8.8 415.0 3.0 1.7 4.2 10.0 6.33 5.0 7.7 6.1 285.0 2.0 1.3 5.8 10.0 6.33 2.1 7.7 2.5 302.0 2.0 1.3 6.1 10.0 6.33 9.4 7.7 11.5 303.0 3.0 1.6 5.2 10.0 6.33 15.1 7.7 18.4 304.0 4.0 1.7 4.71 10.0 6.33 3.7: 7.7 4.5 305.0 5.0 1.9 4.3 10.0 6.33 1.3 7.7 1.5 I I I I I I ! I ! I I I 0 0 I "' 0 0 0 0 ~ I "' N 0 "' 0 I c; ~ a, N a "' a ~ In/Hr cfs lln/Hr cfs In/Hr cfs In/Hr !cfs 8.6 4.61 9.9 5.3 11.1 5.9 12.5 6.7 8.6 14.3! 9.9 16.3' 11.1 18.5 12.5' 20.7 8.6 13.6! 9.9 15.6 11.1 17.6 12.5 19.8 8.6 10.21 9.9 11.6 11.1 13.1 12.5 14.7 8.6 2.6! 9.9 2.9 11.1 3.3 12.5 3.7 8.6 13.5t 9.9 15.5 11.1 17.5 12.5 19.6 8.6 2.0! 9.9 2.3 11.1 2.6 12.5 3.0 8.6 8.61 9.9 9.9 11.1 11.2 12.51 12.5 8.6 3.1 I 9.9 3.6 11.1 4.0 12.5 4.5 8.6 9.9'! 9.9 11.3 11.1 12.8 12.5 14.4 8.6 6.9i 9.9 7.9 11.1 8.9 12.5 10.0 8.6 2.81 9.9 3.3 11.1 3.7 12.5 4.1 8.6 12.9~ 9.9 14.7 11.1 16.6 12.5 18.7 8.6 20.7, 9.9 23.6 11.1 26.7 12.5 30.0 8.6 5.01 9.9 5.7 11.1 6.5 12.5, 7.3 8.6 1.7: 9.9 2.0 11.1 2.2 12.51 2.5 6/18/2014 10650019-dra.xls Exhibit C-1 0 .... .... i:: ~ ~ i:: a.. ~ ~ ~ ~ = -= a.. ~ a.. < a.. ~ .... .... .... Co-' • i:: 0 .... "O rJ:J. <o -~ ~ ~ i:: :E "O ~ zz l:>JJ l:>JJ c ~ 0 0 ~ i:: i:: a.. ._ .... < i;: = = a.. .... ·:; ~ ~~ a.. i:: ~ ~ ~ ·; ·; u ~ O" c. .... a.. ~ a.. a.. 0 .... ~ 0 ~< o ~ ~ 0 E--rJ:J. 1Z oo cfs 1 na 4.6 0 .0 4.6 27 0 .3% 2 na 14.3 0.0 14 .3 27 3.3% 3 n a 13 .6 0.0 13 .6 27 3.0% 4 n a 10 .2 0 .0 10 .2 27 1.7 % 5 na 2 .6 0 .0 2.6 27 0 .1 % 6 na 13 .5 0.0 13.5 27 3 .0 % 7 na 2 .0 0.0 2.0 2 7 0.1 % 8 na 0 .0 0 .0 0 .0 2 7 0 .0% 9 na 0 .0 0 .0 0 .0 27 0 .0% 10 na 8.6 0 .0 8 .6 38 2 .7% 12 na 3.1 0 .0 3 .1 3 8 0.4% I3 na 9 .9 0 .0 9 .9 27 1.6% 14 na 6.9 0.0 6 .9 27 0 .8% 15 na 12 .9 0.0 12.9 3 8 6 .0% 16 na 5 .0 0 .0 5 .0 3 8 0.9% EXHIBIT C-2 INLET COMPUTATIONS Pebble Creek Phase 70 .... ~ = .... .... i:: 0 0 z .... ~ ~ .... = 0 DESCRIPTIO N .... E-- 1 4.6 Recessed Low P oi nt Inl et 2 14.3 Recessed Low Po int Inl et 3 13.6 Recessed Low Po int Inl et 4 10 .2 Recessed L ow Po int Inl et 5 2 .6 Recessed Low Po int Inl et 6 13.5 Recessed Low Po int Inl et 7 2.0 Recessed L ow Po int Inl et 8 0 .0 Recessed Low Po int Inl et 9 0 .0 Recessed Low Po int Inl et 10 8.6 Recessed Low Po int In let 12 3 .1 Recessed Low Poi nt Inl et 13 9 .9 Recessed Low P oi nt Inl et 14 6.9 Recessed Low Po int Inl et 15 12 .9 Rec ess ed L ow Po int Inl et 16 5 .0 Recessed L ow P o int Inl et ~ J a.. ~ ~ ~ < u cfs 2 .33 2 .33 2.33 2 .33 2 .33 2 .33 2.33 2.3 3 2.33 2.33 2 .3 3 2.3 3 2.33 2.33 2 .33 a.. ~ "O ~ ~ 0 "O -0 ·s: c O" 0 a.. ~ a.. i:: IZ ~ u .J J 0 C u rb I nl et ft ft 1.97 5 0 6 .12 JO 0 5 .84 10 0 4 .3 5 5 0 1.10 5 0 5 .80 10 0 0.87 5 0 0 .00 5 0 0 .00 5 0 3.70 5 0 1.34 5 0 4 .25 5 0 2.95 5 0 5 .51 10 0 2.16 5 0 -= .... c. ~ ~ "O ~ "O = 0 ~ ft "O "O ~ ~ ~ a.. 00 ·-"O = ·s: a.. O" 0 ~ ~ a.. ~ IZ ~ ~ i:: i:: ~ ~ < a.. a.. u < < Grat e Inlet cfs sq-ft sq-ft 6/18/201 4 10650019-dra.x ls Exhi b it C-2 EXHIBITC-3 PIPE SIZE CAL CU LA TIONS Pebble Creek Phase 70 I T = , I . ~ ' ' ·-c -i: I ; ~ ~ -i: I I i E Q ·;;; ~ ~ I I . I < ; ... ~ "' ·-0 I ~ I Z ~ ~ ! en "' ~ ~ ~ "~ I . ~ E--~ ::i:: I~ 0 t; u I 3 ] Q I ~ Cl., ;;: I .... .5 -I E--z < : c .:, t; -i: ._ Cl., o I : c.:l Q:i E--___ g ______ g ____ gJ.--.. ~---_g __ !__~--~-~-1~ ---~---L--l._ l __ ~----~--l~--__ } ___ --.-~---~I~ # # Ac. imm /yr cfs cfs 1# cfs 1% I" fps :' mm mm ' 1· 1 2 I o.5i 10.01 10 4.6 6.111 6.11 o.39l 18 3.5; 114 o.55 10.55 ____ 3-__ ... .:t j ~,f?J 1_<?:<? _)_<? ___ 1_3-:6-_ )_~:! 1_ ---~-~ .. ![ .. 3-.. ~~j ____ !~ _ !9:~~---4? _ -°-·-°-? ... W9? ---!-1--_2_ --~_J-2.21 -fo~ 1tf ---1~5~----24.6 1 24.6! 1.36j 24 1.8: 201 o.44 10.99 Li ----~----___ :5-__ + __ ?.:~L---~Q,! --~Q_ ----~~:? ---~!,§'-~----~_1_._6-L_ __ 2--.2-~L ... 2-~ __ !9~9~-~~ ____ Q:.7-~ ___ !9~!l_Q ---'---:t-r-~~i: 1--~;~ ~$!r~l-~lti~lt!tf ~J~1f !t~l~~;!~!ri!f.~~ _ __!1_+_.!__~ _ _;___9.:_4_} __ JO.O .J..Q_ ---~.:1 ---~±.! 1 ---~2-+__Q_:Q~--2-~ 1.3; 150 ___ -2_~9 __ !_1Jl~ __ _ 12 I 15a i 1.11 10.0 10 9.9 13.211 13.2! 1.821 18 7.5• 134 0.30 10.30 ~=~}~=~t~=EJ_=~=9~~t:=jq~g :J=g~j :=~=~Ii~~~~:I~it T :~~~I~[~=g~rnt=~~f~ ~=~?~~Jj~~J=~~I=q~·=~=!I9=~ ~=~[ --·11k---+~~--~ -~~~r ---l~~g--~----·2~'{--2H1+---2Hl----~~5-j~ ----~ --i.-~~-~~1--6'~~ H:-~~ --·· --I I ' ' I ' I I -=I~Ii_--------~~_i_-_-l-~9_-,_~r-~-·w9 _-_I§_-~----~--_-_Tjr_-_-_-_·np_· _-_-_-_--f"tf-~--_-6)1_qr·------~~1~--_-_cL~T-?il_Qr_·j~}~_ =-j_f(~ _-_-_--_-_-_ •• See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) 6/18/2014 10650019-dra.xls Exhibit C-3 EXHIBITC-4 PIPE SIZE CALCULATIONS -100 Year Pebble Creek Phase 70 1 c I ! I bf) : I ·-c , -): I ' ' r!l bfl I : -i: • ! < I J... ~ Cl) •-I Q ~ i I E Q ·;;; I ~ i ~ I 0 ~tul o] Q ~~I;-;: ... E -o z; ~ I I --·=-1-! ~, .... ·-I ~ i ...;l I rJ'J "' ] ~ <U i c . ~ I ~ c :c t:: ~ ; -< ' c .:, -.... ~ ! 0 ' c..? -~ ~ .... __ i ___ 1JJ1t~JJlUl JJJ liilJ l~.11~-# # !Ac. !min yr cfs cfs # cfs !% !" fps :' lmin min ' ' 1 I 2 i 0.51 10.0 1001 6.7 8.911 8.9! 0.831 181 5.0: 1141 0.38 10.38 ---~-. ---~ _L .. ~:?j .. __ 1_Q,O .1921.. _1_~:~. -~~:~ ~ L .. ?.~--~l --~:??j _18 .. 1~:~; __ '!~4---°-·-°-? _!9.-9.5----~-__ 2_+_i_.J 2.2! 1_0.5 10.Ql __ ~~~-35.7 _!J-~~~-~ 11.4: 2071 __ 0.301_10.85-f _; -·~l:i=!Hlt::il~ !litt-i =~iii tl=tt~::·tif :::~ ::l~!1~r~:j~tt}i :f ·------------;-------r-------·----_.. .._____ ---·-·-··-·---;-----1---· ---,---r--·--·-__ ,__ 10 11 ! 1.0; 10.0 100 12.5 16.7 1 16.7; 0.631 10 5.3: 42 0.13 10.13 I __ 1_1_ !..~-+-Q£ __ _1_Q.:.o .1Ql+ ______ i:5 ----~~o _! -----~QJ. ___ .QJ2_~L_24 --~~ __ 110 _ 11 _30 _1 __ --1it+-t~T~~r-I!il l;¥-t~i :~tli )ttm~1~-:tt ·~f ~!l!r-::.J1i ~:lfil-=. ~ ------·-i-·------r------r---···-·-·-· ----+---------------+ --------r-------r-----------:----l---------------------•• See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) 6/18/2014 10650019-dra.xls Exhibit C-4 WATER AND SEWER REPORT FOR Peb·ble Creek Subdivision Phase7D COLLEGESTATION,BRAZOSCOUNTY,TEXAS SEPTEMBER 2014 MBESI# 1065-0019 SUBMTITED BY: IMm McCLURE & BROWNE ENGINEERING/SURVEYING, INC. ~ ;n 1008 Woodcreek Dr., Suite 103 · College Station , Tx. 77845 · (979) 693-3838 Engineer Reg . No . F-458 Survey Reg . No. 101033-00 WATER AND SEWER SYSTEM ANALYSIS P E BBLE CREEK, PHASES 7D Area encompass ed by this phase : Anticipated land use: Anticipated number of lots: General Information 55.025 ac res Single fami ly resident ia l 84 lots No tes on surroundin g de velopm ent: T he area s urr oundi ng the site is mostly developed with existing phases of Pebbl e Creek to th e north, east and west. A lum C reek is adj acent to the tract to the south. Primary water supply lin e : Software mod e l: Average daily flow: P eaking factor: Water System Analys is Existing 8" lin e o n Royal Ade lade Dri ve & 12 " line o n Pebbl e Creek Park way PIP E200 0 (Kentucky Pipe etwork Model) 267 gp d (0.185 gp m) per residentia l lot 4 .0 Estima ted p eak dom estic demand: 0.75 gp m per reside ntial lot 100 0 g pm Estimated fire d e mand: Pipe material: PV C (C9 09 ) Most Hydraulically Re mote Po int: Node J-2 1 (This p o int was de termined by calcu lating th e lowest pressure under s tatic co nditions) Table of Res ults Regulated Items A s I R . D . d equzrem ent esz ne Notes 67 .73 2 0 ! Fire flo w cond itions J-21 n/a 1500 Co nclusion: The proposed water sys tem exceeds the requirements of TC E Q and the City of College Station Applicab le Exhib its: Exhibit B Sc he mat ic Water System Layout Exhibit C PIPE20 12 Mode l Output for Pebble Creek 7 0 (static) Exhibit D PlPE2012 Mode l Output for Pebb le Creek 7 0 (fire flow) Pe bble C reek, Phases 7C Page I of2 MB ESI #I 06500 17 General Note: Primary outfall lin e: Software mod el: Average daily flow: Peaking factor: Pipe Material: Manning 's N value: Spreadsheet No tes: Co nclusion: Applicable Exhibits: Sewer System Analysis This se wer system drains to the ex isting 16" line that runs along Alum Creek. The lots in th e propose d phase accounts for only a small portion of th e capacity for the entire system. Existing 16 " near the southern property line of Ph ase 7C Microsoft EXCEL Spreadsheet based on Manning 's Equation 267 gpd per resid e ntial lot 4.0 PVC (D3034) 0 .013 The s preads heet in Exhibit E computes th e minimum s lo pe of the line s needed to carry water at 2.5 feet per second or faster. If that slope is le ss than the minimum s lope required by the Cities of Bry an and Co lle ge Station, the calculated s lope value a ppears in red and indic ates that the lin e has adequate capacity even whe n laid on the minimum s lope All of the lines in the spreadsheet on Exhibit E have computed slopes shown in red that are less than the minimum required by the City of College Station. Therefore, we conclude that the lines are adequately sized and will easily carry the sewage flows that are expected to pa ss through them. Exhibit A Schematic Sewer System Layout Exhibit E Sewer Model Spreadsheet Peb bl e Creek, Ph ases 7C Page 2 of2 MB ES I #106500 17 E x hibit C Static Model Results K Y P I P E 5 Pipe Network Modeling Software Copyrighted by KYPIPE LLC Version 5 -February 2010 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Date & Time : Tue Sep 23 15 :45:03 2014 Master File f:\1065 -davis young\0019 -pebb le creek phase 7d\docs\10650019-stat .KYP\10650019 - stat .P2K ************************************************ S U M M A R Y 0 F 0 R I G I N A L D A T A ***********************************~************ U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . PRESSURE ........... . P I P E L I N E D A T A gallons/minute feet psig STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE NODE NAMES DIAM ETER ROUGHNESS MINOR P I P E N A M E #1 #2 LENGTH (ft ) (in) CO EFF. LOSS COEFF. P -1 J -21 J -19 135 .54 8 .00 140.0000 0 .00 P -2 J -21 J -22 148 .79 4 .00 140.0000 0 .00 P -3 J -19 J -18 144 .81 8 .00 140 .0000 0 .00 P -4 J -19 J -20 317 .67 8 .00 140 .0000 0 .00 P-5 J -18 J -17 496 .99 8 .00 140 .0000 0 .00 P-6 J -20 J -18 4 52 . 72 6 .00 140.0000 0.00 P -7 J-20 J -16 152.23 8 .00 140 .0000 0 .00 P -8 J -16 J -6 295 .10 8 .00 140 .0000 0 .00 P -9 J -17 J -16 317.11 8 .00 140 .0000 0 .00 P-20 VP -2 J -5 348.00 8 .00 135 .9163 0.00 P-21 J -5 J -13 264 .00 8 .00 140 .0000 0.00 P-22 J -7 J -6 78.00 8 .00 140 .0000 0 .00 P-23 J -7 J -8 467 .00 8 .00 140.0000 0 .00 P-24 J -8 J -9 275 .00 4.00 140 .0000 0.00 P-25 J -8 J -10 356 .00 8 .00 140 .0000 0.00 P-26 J -10 J -11 201. 00 4.00 140 .0000 0 .00 P-27 J -10 J -21 229 .00 8 .00 140.0000 0 .00 P-28 J -13 J -7 435.00 8 .00 140.0000 0 .00 P-29 J -13 J -14 445 .00 8 .00 140.0000 0 .00 P-30 J -5 J -15 515.00 4.00 140.0000 0 .0 0 P U M P/L 0 S s E L E M E N T D A T A THERE IS A DEVICE AT NODE VP -2 DESCRIBED BY THE FOLLOWING DATA : (ID= 1) HEAD (ft) 287 .22 184 .15 -84 .84 N 0 D E D A T A 0 u T NODE NAME J -5 J -6 J -7 J -8 J -9 J -10 J -11 J -13 J -14 J -15 J -16 J -17 J -18 J -19 J -20 J -21 J -22 VP -2 P U T 0 NODE TITLE p T I FLO WRATE (gpm) 0 .00 1250 .00 2500 .00 EXTERNAL DEMAND (gpm) 2 .25 3 .50 3 .75 6 .75 3 .75 0 .00 4 .50 0 .00 4 .50 6 .75 36 .00 13 . 50 21 .00 6 .00 15 .00 3 .00 12 .00 0 N D A T A EFFICIENCY (%) 75 .00 75 .00 75 .00 JUNCTION ELEVATION (ft) 232 .00 222 .00 224.00 242 .00 238 .00 246 .00 246 .00 234 .00 220.00 228 .00 228.00 248 .00 248.00 246 .00 242 .00 248 .00 248.00 230 .00 EXTERNAL GRADE (ft) 230 .00 OUTPUT SELECTION : ALL RESULTS ARE INCLUDED IN THE TABULATED OUTPUT MAX IM UM AND MINIMU M PRESSURES 5 MAXI MUM AND MI NIMU M VELOCITIES 5 MAXI MUM AND MINIMU M HEAD LOSS/1000 5 S Y S T E M C 0 N F I G U R A T I 0 N NUMBER OF PIPES ................... (p) 20 NUMBER OF END NODES ............... ( j) 1 7 NUMBER OF PRIMARY LOOPS ........... ( 1) 3 NUMBER OF SUPPLY NOD ES ............ (f) 1 NUMBER OF SUPPLY ZONES ............ (z) l Case : 0 RESULTS OBTAI NED AFTER 9 TRIALS : ACCURACY 0 .00000 S I M U L A T I 0 N D E S C R I P T I 0 N (L A B E L) P I P E L I N E R E S U L T S STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE P I P E N A M E P-1 P -2 P-3 P-4 P-5 P-6 P-7 P-8 P-9 P-20 P-21 P-22 P-23 P-24 P-25 P-26 P-27 P-28 P-29 P-30 NODE NUMBERS #1 #2 J -21 J -21 J -19 J -20 J -17 J -20 J -16 J -6 J -16 VP -2 J -5 J -7 J -7 J -8 J -8 J -10 J -10 J -13 J -13 J -5 J -19 J -22 J -18 J -19 J -18 J -18 J -20 J -16 J -17 J -5 J -13 J -6 J -8 J -9 J -10 J -11 J -21 J -7 J -14 J -15 FLOWRATE (gpm) 18 .67 12 .00 14 .29 1. 62 3 .01 3 .70 20 .31 72 . 83 16 .51 142 .25 133 .25 76 .33 48 .67 3 .75 38 .17 4 .50 33 .67 128 .75 4 .50 6 .75 HEAD MINOR LOSS LOSS (ft) (ft) 0 .00 0 .02 0 .00 0 .00 0 .00 0 .00 0 .00 0 .04 0 .00 0 .16 0 .10 0 .01 0 .03 0 .00 0 .01 0 .00 0 .01 0 .16 0 .00 0 .02 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 LINE HL+ML/ VELO. 1000 (ft/s) (ft/ft) 0 .12 0 .31 0 .09 0 .01 0 .02 0 .04 0 .13 0 .46 0 .11 0 .91 0 .85 0 .49 0 .31 0 .10 0 .24 0 .11 0 .21 0 .82 0 .03 0 .17 0 .01 0 .13 0.01 0 .00 0 .00 0 .00 0 .01 0 .12 0 .01 0 .45 0 .38 0 .14 0 .06 0 .01 0 .04 0 .02 0 .03 0 .36 0 .00 0 .04 HL/ 1000 (ft/ft) 0 .01 0 .13 0 .01 0 .00 0 .00 0 .00 0 .01 0 .12 0 .01 0 .45 0 .38 0 .14 0 .06 0 .01 0 .04 0 .02 0 .03 0 .36 0 .00 0 .04 P U M P/L 0 S S E L E M E N T R E S U L T S NPSH NAME Avail . (ft) VP -2 33 .2 N 0 D E NODE NAME J -5 J -6 J -7 J -8 J -9 J -10 J -11 J -13 J -14 J -15 J -16 J -17 J -18 J -19 J -20 J -21 J -22 VP -2 FLOWRATE (gpm) 142 .25 R E S U L T S NODE TITLE INLET HEAD (ft) 0.00 OUTLET HEAD (ft) 285.37 EXTERNAL DEMAND (gpm) 2 .25 3 .50 3 .75 6 .75 3 .75 0 .00 4 .50 0 .00 4 .50 6 .75 36 .00 13.50 21. 00 6 .00 15 .00 3.00 12.00 PUMP EFFIC -USEFUL INCREMTL TOTAL #PUMPS #PUMPS HEAD ENCY POW ER COST (ft) ( %) (Hp) ($) 285 .4 75 .00 HYDRAULIC NODE GRADE ELEVATION (ft) (ft) 515 .22 514 .95 514.96 514 .93 514 .93 514 .92 514.91 515.12 515 .12 515.19 514 .91 514 .91 514.91 514.91 514.91 514.91 514 .89 515 .37 232 .00 222 .00 224 .00 242 .00 238 .00 246 .00 246 .00 234.00 220 .00 228 .00 228 .00 248 .00 248 .00 246 .00 242 .00 248 .00 248 .00 230 .00 0 . 0 .0 PRESSURE HEAD (ft) 283 .22 2 92 . 95 290 .96 272 . 93 276 .93 268 .92 268 .91 281 .12 295 .12 287 .19 286 .91 266 .91 266 .91 268 .91 272 . 91 266 .91 266 .89 285 .37 COST PARA LLEL S ERIE S ($) 0 .0 NODE PRESSURE (psi) 122 .73 126 .94 126 .08 118 .27 120 .00 116 .53 116 . 53 121 .82 127 .88 124 .45 124 .33 115 . 66 115 .66 116 . 53 118 .26 115 . 66 115 . 65 123 .66 M A X I M U M A N D M I N I M U M V A L U E S p R E s s u R E s JUNCTION MAXIMUM JUNCTION MINIMUM NUMBER PRESSURES NUMBER PRESSURES (psi) (psi) ------------------------------------------ J -14 127 .88 J -22 115 .65 J -6 126 .94 J -18 115 . 66 J -7 126 .08 J -17 115 . 66 J -15 124.45 J -21 115 .66 J -16 124 .33 J -19 116 .53 v E L 0 c I T I E s PIPE MAXIMUM PIPE MINIMUM NUMBER VELOCITY NUMBER VELOCITY (ft/s) (ft/s) ------------------------------------------ P-20 0 .91 P -4 0 .01 P-21 0 .85 P-5 0 .02 P-28 0 .82 P-29 0 .03 P-22 0 .49 P -6 0 .04 P-8 0. 4 6 P-3 0 .09 H L + M L I 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBER HL+ML/1000 NUMBER HL+ML/1000 (ft/ft) (ft/ft) ------------------------------------------ P-20 0.45 P-4 0.00 P-21 0 .38 P-5 0 .00 P-28 0 .36 P-29 0 .00 P-22 0 .14 P-6 0 .00 P-2 0 .13 P-3 0 .01 H L I 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBER HL/1000 NUMBER HL/1000 (ft/ft) (ft/ft) ------------------------------------------ P-20 0 . 4 5 P-4 0 .00 P -21 0 .38 P-5 0 .00 P -28 0 .36 P-29 0 .00 P -22 0 .14 P-6 0 .00 P-2 0 .13 P -3 0.01 S U M M A R Y 0 F I N F L 0 W S A N D 0 U T F L 0 W S (+) INFLOWS INTO THE SYSTEM FROM SUPPLY NODES (-) OUTFLOWS FROM THE SYSTEM INTO SUPPLY NODES NODE NAME VP -2 NET SYSTEM INFLOW NET SYSTEM OUTFLOW NET SYSTEM DEMAND FLOWRATE (gpm) 142 .25 142.25 0 .00 142 .25 NODE TITLE ***** HYDRAULIC ANALYSIS COMPLETED ***** * * * * * * * E x hibit D Fire Flo w Results K Y P I P E 5 Pipe Network Modeling Software Copyrighted by KYPIPE LLC Version 5 -February 2010 ************ Date & Time : Tue Sep 23 15 :55 :13 2014 Master File f :\1065 -davis young\0019 -pebble creek phase 7d\docs\10650019 -fire .KYP\10650019 - fire .P2K S U M M A R Y 0 F 0 R I G I N A L D A T A ************************************************ U N I T S S P E C I F I E D FLOWRATE HEAD (HGL) PRESSURE ........... . P I P E L I N E D A T A gallons/minute feet psig STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE NODE NAMES DIAMETER ROUGHNESS MINOR P I P E N A M E #1 #2 LENGTH (ft) (in) COE FF . LOSS COEFF . P-1 J -21 J -19 135 .54 8.00 140 .0000 0 .00 P-2 J -21 J -22 148 .79 4 .00 140 .0000 0 .00 P-3 J -19 J -18 144 .81 8 .00 140 .0000 0.00 P-4 J -19 J -20 317 .67 8 .00 140 .0000 0 .00 P-5 J -18 J -17 496 .99 8.00 140 .0000 0 .00 P-6 J -20 J -18 452 .72 6 .00 140 .0000 0 .00 P-7 J -20 J -16 152 .23 8 .00 140 .0000 0 .00 P-8 J -16 J -6 295 .10 8 .00 140 .0000 0 .00 P-9 J -17 J -16 317 .11 8 .00 140 .0000 0.00 P-20 VP -2 J -5 348 .00 8 .00 135 .9163 0.00 P-21 J -5 J -13 264.00 8 .00 140 .0000 0 .00 P-22 J -7 J -6 78 .00 8 .00 140.0000 0 .00 P-23 J -7 J -8 467 .00 8 .00 140 .0000 0.00 P-24 J -8 J -9 275 .00 4 .00 140 .0000 0.00 P-25 J -8 J -10 356 .00 8 .00 140 .0000 0 .00 P-26 J -10 J -11 201 .00 4 .00 140 .0000 0 .00 P-27 J -10 J -21 229 .00 8 .00 140 .0000 0 .00 P-28 J -13 J -7 435 .00 8 .00 140 .0000 0 .00 P-29 J -13 J -14 445 .00 8 .00 140 .0000 0.00 P-30 J -5 J -15 515 .00 4 .00 140 .0000 0 .00 P U M P/L 0 S s E L E M E N T D A T A THERE IS A DEVICE AT NODE VP -2 DESCRIBED BY THE FOLLOWING DATA: (ID= 1) HEAD (ft) 287 .22 184 .15 -84 .84 N 0 D E D A T A 0 u T NODE NAME J -5 J -6 J -7 J -8 J -9 J -10 J -11 J -13 J -14 J -15 J -16 J -17 J -18 J -19 J -20 J -21 J -22 VP -2 p u T 0 NODE TITLE p T I FLO WRATE (gpm) 0 .00 1250 .00 2500 .00 EXTERNAL DEMAND (gpm) 2 .25 3 .50 3 .75 6 .75 3.75 0 .00 4 .50 0 .00 4 .50 6.75 36 .00 13 .50 21 .00 6 .00 15 .00 1003 .00 12 .00 0 N D A T A EFFICIENCY (%) 75 .00 75 .00 75 .00 JUNCTION ELEVATION (ft) 232 .00 222 .00 224.00 242.00 238 .00 246 .00 246 .00 234.00 220 .00 228 .00 228 .00 248 .00 248 .00 246 .00 242 .00 248 .00 248 .00 230 .00 EXTERNAL GRADE (ft) 230 .00 OUTPUT SEL ECTION : ALL RESULTS ARE INCLUDED IN THE TABULATED OUTPUT MAX I MUM AND MINIMUM PRESSURES 5 MAX I MUM AND MINIMUM VELOCITIES 5 MAXIM UM AND MINIMUM HEAD LOSS/1000 5 S Y S T E M C 0 N F I G U R A T I 0 N NUMBER OF PIPES ................... (p) 20 NUMB ER OF END NODES ............... (j) 17 NUMBER OF PRIMARY LOOPS ........... (1) 3 NUMBER OF SUPPLY NODES ............ (f) 1 NUMBER OF SUPPLY ZONES ............ (z) 1 Case : 0 RESULTS OBTAI NED AFTER 5 TRIALS : ACCURACY 0 .00001 S I M U L A T I 0 N D E S C R I P T I 0 N (L A B E L ) P I P E L I N E R E S U L T S STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE P I P E N A M E P-1 P-2 P-3 P-4 P-5 P-6 P -7 P -8 P -9 P-20 P-21 P-22 P-23 P-24 P-25 P-26 P-27 P-28 P-29 P-30 NODE NUMBERS #1 #2 J -19 J -21 J -18 J -20 J -17 J -20 J -16 J -6 J -16 VP -2 J -5 J -7 J -7 J -8 J -8 J -10 J -10 J -13 J -13 J -5 J -21 J -22 J -19 J -19 J -18 J -18 J -20 J -16 J -17 J -5 J -13 J -6 J -8 J -9 J -10 J -11 J -21 J -7 J -14 J -15 FLOWRATE (gprn) 547.91 12 .00 267 .24 286 .67 203 .94 84 .31 385 .97 639 .41 217 .44 1142 .25 1133 . 25 642 .91 482 .09 3 .75 471 .59 4 .50 467 .09 1128 .75 4 .50 6 . 75 HEAD MINOR LINE HL+ML/ HL/ LOSS LOSS VELO. 1000 1000 (ft) (ft) (ft/s) (ft/ft) (ft/ft) 0 .71 0 .02 0 .20 0 .50 0 .42 0 .30 0 .42 2 .05 0 .30 7 .49 5 .30 0 .55 1. 93 0 .00 1. 41 0 .00 0 .89 8 .67 0 .00 0 .02 0.00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 0 .00 3.50 0 .31 1. 71 1. 83 1. 30 0 .96 2 . 46 4 .08 1. 39 7 .29 7 .23 4 .10 3 .08 0 .10 3 .01 0 .11 2 .98 7 .20 0 .03 0 .17 5.23 0 .13 1. 38 1. 57 0 .84 0 .66 2.73 6. 96 0 .94 21 .52 20 .08 7 .03 4.12 0.01 3 .96 0 .02 3.89 19.93 0.00 0 .04 5 .23 0 .13 1. 38 1. 57 0 .84 0 .66 2 .73 6 . 96 0 .94 21.52 20 .08 7 .03 4.12 0.01 3 .96 0 .02 3 .89 19 .93 0.00 0 .04 P U M P/L 0 S S E L E M E N T R E S U L T S NPSH NAME Avail. (ft) VP -2 33 .2 N 0 D E NODE NAME J -5 J -6 J -7 J -8 J -9 J -10 J -11 J -13 J -14 J -15 J -16 J -17 J -18 J -19 J -20 J -21 J -22 VP -2 FLOWRATE (gprn) 1142 .25 R E S U L T S NODE TITLE INLET HEAD (ft) 0 .00 OUTLET HEAD (ft) 200 .00 EXTERNAL DEMAND (gprn) 2 .25 3 .50 3.75 6 . 7 5 3.75 0 .00 4 .50 0 .00 4 .50 6 .75 36 .00 13 .50 21. 00 6 .00 15.00 1003 .00 12.00 PUMP EFFIC -USEFUL INCREMTL TOTAL #PUMPS #PUMPS HEAD ENCY POWER COST COST PARALLEL SERIES (ft) (%) (Hp) ($) ($) 200 .0 75 .00 0 . 0 .0 0 .0 HYDRAULIC NODE PRESSURE NODE GRADE ELEVATION HEAD PRESSURE (ft) (ft) (ft) (psi) 422 .51 407 .99 408 .54 406 .62 406 .61 405 .21 405 .20 417 .21 417 .21 422 .49 405 .94 405 .64 405 .22 405 .02 405.52 404 .32 404 .30 430 .00 232 .00 222.00 224 .00 242 .00 238.00 246 .00 246 .00 234 .00 220 .00 228 .00 228 .00 248.00 248.00 246.00 242.00 248.00 248 .00 230 .00 190 .51 185 .99 184 .54 164. 62 168 .61 159 .21 159 .20 183 .21 197 .21 194.49 177 .94 157 .64 157 .22 159 .02 163 .52 156 .32 156 .30 200 .00 82 .55 80 .60 79 .97 71 .33 73 .06 68 .99 68 .99 79 .39 85 .46 84 .28 77 .11 68 .31 68 .1 3 68 .91 70 .86 67 .74 67 .73 86 .67 M A X I M U M A N D M I N I M U M V A L U E S p R E s s u R E s JUNCTION MAXIMUM JUNCTION MINIMUM NUMBER PRESSURES NUMBER PRESSURES (psi) (psi) ------------------------------------------ VP -2 86 . 67 J -22 67 .73 J -14 85 .46 J -21 67 .74 J -15 84 .28 J -18 68.13 J -5 82 .55 J -17 68 .31 J -6 80 .60 J -19 68.91 v E L 0 c I T I E s PIPE MAXIMUM PIPE MINIMUM NUMBER VELOCITY NUMBER VELOCITY (ft/s) (ft/s) ------------------------------------------ P -20 7 .29 P-29 0.03 P -21 7.23 P-24 0 .10 P -28 7.20 P-26 0 .11 P -22 4 .10 P-30 0 .17 P-8 4 .08 P-2 0.31 H L + M L I 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBER HL+ML/1000 NUMBER HL+ML/1000 (ft/ft) (ft/ft) ------------------------------------------ P-20 21. 52 P-29 0 .00 P -21 20.08 P-24 0 .01 P -28 19 .93 P-26 0 .02 P -22 7 .03 P-30 0 .04 P-8 6 .96 P-2 0 .13 H L I 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBER HL/1000 NUMBER HL/1000 (ft/ft) (ft/ft) ------------------------------------------ P -20 21 .52 P-29 0 .00 P -21 20 .08 P -24 0 .01 P -28 19 .93 P-26 0 .02 P -22 7 .03 P -30 0 .04 P-8 6 .96 P-2 0 .13 S U M M A R Y 0 F I N F L 0 W S A N D 0 U T F L 0 W S (+) INFLOWS INTO THE SYSTEM FROM SUPPLY NODES (-) OUTFLOWS FROM THE SYSTEM INTO SUPPLY NODES NODE NAME FLOWRAT E (gpm) VP -2 1142 .25 NET SYSTEM INFLOW 1142 .25 NET SYSTEM OUTFLOW 0 .00 NET SYSTEM DEMAND 1142 .25 NODE TITLE ***** HYDRAULIC ANALYSIS COMPLETED ***** L in e g ~ " 0 c -;;; "O G: @ 0 " . ., z Oil b ~ c " c ~ " From To " E -o 'D P."'O ~ 0 0 => ::i 0 ct: z 1: 6 z " oc ~ c 0 0 0 <b G: u 267 GPD per MH # MH # Lo t GPD Outfall #I I 2 15 4,005 2 5 12 3,204 4,005 3 4 7 1,869 4 5 3 80 1 1,869 5 17 15 4,005 9,879 6 8 3 80 1 7 8 7 1,869 8 10 4 1,068 2,670 9 10 8 2 ,136 10 12 3 80 1 5,874 II 12 8 2,136 12 14 3 80 I 8,8 11 13 14 6 1,602 14 16 4 1,068 11 ,2 14 15 16 6 1,602 16 17 7 1,869 13 ,884 17 18 8 2, 136 29,637 18 19 5 1,3 35 3 1,773 Exhibit E P e bble Creek Pha se 7D Sanitary Sewer Analys is Flow Ca lcul atio ns Average Da il y Flows Infiltrat ion Peaki ng Peak Inside Size Ma teri al (ADF) (10%ADF) Facto r Flows Diameter G PD CFS C FS CFS (i n.) In ches 4,005 0 .0062 0 .0006 4 .00 0 .03 8 D3034 7.754 7,209 0.0 11 2 0.00 11 4.00 0.05 8 D3034 7.75 4 1,869 0.0029 0.0003 4.00 0 .0 1 8 D3034 7.754 2,670 0 .004 1 0 .0004 4.00 0.02 8 03034 7.754 13,884 0 .02 15 0 .002 1 4.00 0.09 8 D3034 7.754 80 1 0 .00 12 0 .000 1 4.00 0.0 1 8 D3034 7.754 1,869 0.0029 0 .0003 4 .00 0 .0 1 8 D3034 7.754 3,738 0.0058 0 .0006 4.00 0.02 8 D3034 7.754 2,136 0.0033 0.0003 4.00 0 .0 1 8 D3034 7.754 6 ,675 0.0 103 0.00 10 4 .00 0.04 8 D3034 7.754 2,136 0.0033 0 .0003 4.00 0.0 1 8 03034 7.754 9 ,6 12 0.0 149 0 .00 15 4.00 0.06 8 D3034 7.754 1,602 0.0025 0.0002 4 .00 0 .0 1 8 D303 4 7 .754 12,282 0.0 190 0 .00 19 4.00 0 .08 8 D3034 7 .754 1,602 0.0025 0.0002 4.00 0.0 1 8 03034 7.754 15,753 0.0244 0.0024 4.00 0.10 8 D3034 7.754 3 1,773 0.0492 0 .00 49 4.00 0.20 8 D3034 7 .75 4 33,108 0 .05 12 0.005 1 4.00 0 .21 8 D3034 7 .754 Pipe Ca lcul ati ons Manning Mannin g Min . Ave . Da il y Fricti on Fri ction Design Ave . Da il y Flow Slope Slo pe Slope Flow Dept h Ve locity Peak A DF ADF Flows % % fus In ches % 0 .000 1 0.40 0 .77 0.00 0.0005 0.0005 0 .40 0 .90 0.00 0.00 17 0 .0000 0.40 0.55 0.00 0.000 1 0.000 1 0.40 0.68 000 0.0002 0.00 18 0.40 I I I 0 .78 0.0062 0 0000 0.40 0 00 0 .00 0 .0000 0.0000 0.40 0.55 0.00 0.000 1 0.000 1 0.40 0.68 0 00 0.0005 0.0000 0 .4 0 0.55 0.00 0.000 1 0.0004 0.40 0.90 0 00 0.00 14 00000 0.40 0.55 0.00 0.000 1 0 .0009 0.40 1.00 0 .3 9 0 .0030 0 .0000 0.40 0.55 0.00 0 .000 1 0.00 14 0.40 1.04 0.39 0 .0049 00000 0.40 0 .55 0 .00 0 .000 1 0 .0023 0.40 1.1 7 0.78 0.0080 0.0094 0.40 1.44 1.1 6 0 .0327 0 .0 102 0.40 1.4 4 1.1 6 0.0355 Ac tu al M in . Slo pe fo r Design Ex istin g Slope Peak or Flows Designed Systems % % 0 .4 0 0.60 0 .4 0 0.60 0 .4 0 0.60 0.40 0.60 0.40 0 .60 0.40 0 .60 0 .4 0 0.60 0 .4 0 0.60 0 .4 0 0.60 0.40 0 .60 0.40 0.60 0.40 0.60 0 .4 0 0 .60 0 .4 0 0.60 0 .4 0 0.60 0 .4 0 0.60 0 .4 0 0.60 0.40 0.60 Pipe Peak Peak Slope Flow Flow Check Ve locity Depth fus Inches OK I.II 0.78 OK 1.37 1.1 6 OK 0.90 000 OK 1.00 0.39 OK 1.68 1.55 OK 0 .68 0 .00 OK 0 .90 0.00 OK I.I I 0.78 OK 0.96 0.39 OK 1.33 0.78 OK 0.96 0.39 OK 1.5 1 1.1 6 OK 0 .84 000 OK 1.63 1.1 6 OK 0 .84 0 .00 OK 1.73 1.55 OK 2.13 2.33 OK 2 .16 2.33 I 06500 19-Sewer .xls 9/23 /20 14 Exhi bit E Item# I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 PEBBLE CREEK PHASE 7D MBESI PROJ #: 1065-0019 Engineer's Preliminary Estimate of Project Costs November 26, 2014 Description Unit Quantity Unit Price Paving Construction Mobilization and Staking L.S . 1.00 9,000.00 Earthwork C.Y. 11 ,500 6 .00 6" Lime Stabili zed Subgrade (6% bv weight) S.Y. 22 ,963 4 .13 6" Crushed Limestone Base S.Y. 9,827 10.31 8" Crushed Limestone Base S.Y. 7,363 13 .75 2" HMAC Surface Course (including orime coat) S.Y. 17.190 11.50 Concrete Curb and Gutter (all tvoes) L.F . 11.145 11.00 6" Reinforced Concrete Pavement S.Y. 987 38 .00 4" Reinforced Concrete Sidewalk S.F . 59 ,452 3 .50 Sidewalk Ramos EACH 12 750 .00 Paving Subtotal Drainage System Construction 18" RCP, ASTM C76 , CLIII L.F. 388 45.00 24" RCP ASTM C76 , CLIII L.F. 873 60 .00 30" RCP , ASTM C76 , CLIII L.F. 1 006 75.00 4'x2' Box Culvert L.F. 349 150 .00 5' Rec . Inlet EACH 2 3 000 .00 10' Rec . Inlet EACH 15 3 600 .00 Junction Box EACH 3 3,000 .00 30" S.E.T. EACH 1 1,600 .00 4x2 Headwall EACH 1 1,850.00 Rock Rio Rao S.Y. 31 50 .00 TV Insoection L.F. 2,6 16 3.50 Drainage System Subtotal Water System Construction 12" PVC , C909 Cl 200 , Water Line, Str . Backfill L.F . 1,856 45 .00 8" PVC. C909 Cl 200 , Water Line Str. Backfill L.F . 2,488 27 .00 8" Ductile Iron Pioe L.F . 156 60 .00 6" PVC, C909 Cl 200 , Water Line Str . Backfill L.F . 736 24 .00 4" PVC, C909 Cl 200 , Water Line, Str. Backfill L.F . 315 18 .00 Fire Hvdrant Assemb ly EACH 6 3,500.00 12"x8" M.J. Tee EACH 2 675.00 8"x8" M .J. Tee EACH 1 475 .00 8 "x6 " M .J. Tee EACH 3 400 .00 12" Gate Valve EACH 2 2,200 .00 8" M .J. Gate Valve EACH 6 1,250.00 6" M.J . Gate Valve EACH 4 950.00 12"x13" M.J. Anchor Couoling EACH 2 250 .00 8"xl3" M .J. Anchor Couolin g EACH 9 250.00 6"x13" M.J. Anchor Couolin g EACH 6 250 .00 12"x45 deg. Bend EACH 6 250 .00 12"xll.25 deg . Bend EACH 2 250 .00 8"x22 .5 deg. Bend EACH 2 250 .00 8"xl 1.25 deg. Bend EACH 1 250 .00 1 of2 Total 9,000 69 ,000 94 ,837 101 ,316 101 ,241 197 ,685 122 ,595 37 ,506 208 ,082 9,000 $950 ,263 17 460 52 ,380 75 ,450 52 350 6 000 54 000 9,000 1,600 1 850 1 550 9,156 $280 ,796 83 ,520 67 ,176 9,360 17 ,664 5,670 21 ,000 1,350 475 1,200 4,400 7,500 3,800 500 2,250 1,500 1,500 500 500 250 • I ,. ' PEBBLE CREEK PHASE 7D MBESI PROJ #: 1065-0019 Engineer's Preliminary Estimate of Project Costs November 26, 2014 Item# Description Unit Quantity 41 6"x45 deg. Bend EACH 3 42 6"x22.5 deg _ Bend EACH 1 43 6"xl 1.25 deg. Bend EACH 1 44 6"x4" Reducer EACH 1 45 2" Blow Off Valve Assembl v EACH 1 46 Connect to Existing Waterli ne EACH 3 47 Water Service , 1.5" Tvoe K Conner Short Side (<20 ') EACH 17 48 Water Service l" Type K Copper Short Side (>20') EACH 1 49 Water Service , 1.5'' Type K Cop per Short Side (>20') EACH 21 Water System Subtotal Sewer Svstem Construction 50 8" PVC D-3034 SDR 26 L.F. 5,351 51 6" PVC, D-3034 SDR 26 L.F . 0 52 Trenching and Backfill (5'-8' Deoth). Non -Structural L.F. 2,023 53 Trenching and Backfill (8'-10' Deoth), Non -Structural L.F. 530 54 Trenching and Backfill (5'-8' Depth), Structural L.F . 1,600 55 Trenching and Backfill (8'-10' Depth), Structural L.F . 718 56 Trenching and Backfill (10 '-1 2' Depth), Structural L.F . 121 57 Trenching a nd Backfill (12'-14" De pth), Structural L.F . 148 58 Trenching and Backfill (14'-1 6" Depth), Structural L.F . 337 59 Standard Manhole, 0 -6 ft. deeo EACH 19 60 Extra Deoth for Std. Manhole V.F. 47 .6 61 Short Side 4" Sewer Service(< 20') EACH 24 62 Long Side 4" Sewer Service (>20') EACH 13 63 Connect to Existing Manho le EACH 2 64 TV Inspection L.F. 5.351 65 Trench Safety (sewer) L.F . 5,351 Sewer System Subtotal Erosion Control Construction Erosion Co ntrol P lan & Sedimentation Contro l (per Item 66 106) (incl udes silt fencing , construction exits , straw bale L.S . 1 barriers, inlet protection, grass seeding, and any other sedimentation control devices) Erosion Control Subtotal TOT AL C O NSTRUCTION COST I The above constructio n estimate is based on the engineer 's preliminary opinion of probable construction costs . This estimate constitutes our best judgment a t this time . Please note that the engineer does not ha ve any control ove r contractor or supplier 2 of2 Unit Price Total 250 .00 750 250 .00 250 250 .00 250 300 .00 300 1,100 .00 1,100 1,100 .00 3,300 950 .00 16 ,150 1,250 .00 1,250 1,450 .00 30 ,450 $283 ,915 17 .00 90 ,967 15.00 0 18.00 36,4 14 19 .00 10 ,070 20 .00 32 ,000 21.00 15 ,078 22 .00 2,662 23 .00 3,404 24 .00 8,088 2,500 .00 47 ,500 250.00 11 ,900 600.00 14 ,400 1,350 .00 17 ,550 1,000 .00 2,000 3.50 18 ,729 1.00 5,351 $316,113 22 ,500 22 ,500 $22 500 $1,853,586 -"'''"'"'' .... ~--\:.Of Tt: ''\ -";:\, .......... ,..(~ \ ,,.. ":··· J\. ··;:,r l, ,.. C:>.· """"'W ·. i' '*:' ~ ··.*I "-~: ·.*J ~ .... ~ ........................... , I. JEFFt:P.Y L. ROoERT SON j f. ........................... : .. ··.1 '1 .-<'\.... 9 4 7 4 5 /.0:: ,I f '.::\. • '<· ,,, f ·ro;:· .. ~(crns~~.···4.:.-..:' l\ ~" ......... ·G' _, \\ "3/0Nli.L'f-~ .:' ''"'' .... --- Item# I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 PEBBLE CREEK PHASE 7D MBES I PROJ #: 1065-0019 Engineer's Preliminary Estimate of Project Costs November 26, 2014 Description Unit Qu antity Unit Price Paving Construction Mobili zation and Staking L.S . 1.00 9,000.00 Earthwork C.Y. 11 ,500 6 .00 6 " Li me Stabili ze d Sub grade (6% bv we ight) S.Y. 22 ,963 4.13 6 " Cru shed Limestone Base S.Y. 9,827 10 .3 1 8 " Crushed Limestone Base S.Y. 7,363 13.75 2" HMAC Surface Course (including orime coa t) S.Y. 17,190 11.50 Concrete Curb and Gutter (all tvoes) L.F . 11 ,145 11 .00 6 " Reinforce d Conc rete Pave ment S.Y. 987 38 .00 4 " Reinfo rce d Concrete Sidewalk S.F . 59 ,452 3.50 Sidewalk Ramp s EACH 12 750 .00 Paving Subtotal Drainage Sy stem Construction 18 " RCP , AS TM C76 , CLIII L.F. 388 45 .00 24 " RCP , AS TM C76 , CLIII L.F. 873 60 .00 30 " RCP , AS TM C76 , CLIII L.F. 1,006 75.00 4'x2 ' Bo x Culve rt L.F. 349 150.00 5' Rec . Inlet EACH 2 3,000 .00 10' Rec . Inl et EACH 15 3,600 .00 30 " RCP Bend EACH 1 1,500 .00 Junction Bo x EACH 2 3,000.00 30" S.E.T. EACH 1 1,600 .00 4x2 Headwal l EACH 1 1,850 .00 Ro ck Rip Rap S.Y. 3 1 50 .00 T V Insp ec tion L.F . 2,6 16 3 .50 Drainage System Subtotal Water Sv stem Construction 12" P VC , C9 0 9 Cl 200 , Wa ter Lin e Str. Bac kfill L.F . 1,856 45 .00 8 " P VC , C9 0 9 Cl 200 , Wa ter Li ne , Str. Backfill L.F . 2,488 27 .00 8 " Ductile Iron Pipe L.F. 156 60.00 6 11 PVC , C9 0 9 Cl 200 , Water Li n e Str. Backfill L.F. 736 24 .00 4" PVC, C909 Cl 200 , Wa ter L ine , Str. Bac kfill L.F . 3 15 18 .00 Fire Hydrant Asse mbl y EACH 6 3,500 .00 12"x8" M.J. Tee EACH 2 675 .00 8 "x8" M.J. Tee EACH 1 475.00 8 "x6" M.J. T ee EACH 3 400 .00 12 " Gate Valve EACH 2 2,200 .00 8 11 M .J. Gate Valve EACH 6 1,25 0 .00 6 " M .J. Ga te Valve EACH 4 950.00 12 "xl3" M.J. Anch or Couolin g EACH 2 25 0 .00 8 "xl3 " M .J. Anchor Couoling EACH 9 250 .00 6 "xl3" M .J. Anchor Coupling EACH 6 250 .00 12 "x45 deg. Bend EACH 6 250 .00 12 "x ll.25 deg. Bend EACH 2 250 .00 8 "x22.5 deg. Bend EACH 2 250 .00 8 "x l 1.25 deg. Bend EACH 1 25 0 .00 1 of2 Total 9,000 69 ,000 94 ,837 101 ,3 16 101 ,241 197 ,685 122 ,595 37,5 06 208 ,082 9,000 $950 ,263 17 ,46 0 52 ,38 0 75 45 0 52 ,35 0 6 000 54 ,000 1 500 6,000 1,600 1,85 0 1,55 0 9,156 $279 ,296 83 ,520 67,176 9,36 0 17 ,66 4 5,67 0 2 1,000 1,35 0 475 1,20 0 4,40 0 7 ,500 3,80 0 500 2,25 0 1,500 1,50 0 50 0 50 0 250 PEBBLE C R E EK PHASE 7D MBE SI PROJ #: 1065-00 19 Engineer's Preliminary Estimate of Project Costs November 26, 2014 Item# Description Unit Quantity Unit Price 42 6 "x45 deg. Bend EACH 3 43 6 "x22 .5 deg. Bend EACH 1 44 6 "xll .25 deg. Bend EACH 1 45 6"x4" Re duce r EACH 1 46 2 " Blow Off Valve Asse mbl y EACH 1 47 Connect to Existing Wate rline EACH 3 48 Wate r Service, 1.5" Tvoe K Conner Short Side (<20') EACH 17 49 Wa ter Service, l" Type K Coooe r Short Side (>20') EACH 1 50 Wa ter Service, 1.5" Type K Copper Short Side (>20 ') EACH 2 1 Wa ter Sys tem Sub total Sewer Sy stem Construction 51 8" PVC, D-3034 SDR 26 L.F . 5,35 1 52 6" PVC. D-3034 SD R 26 L.F . 0 53 Trenching and Backfil l (5 '-8' Deoth). Non-Structural L.F . 2,023 54 T renching and Backfi ll (8'-1 0 ' Dep th) Non-Structural L.F . 530 55 Trenching and Backfill (5'-8 ' Deoth), Stru ctural L.F . 1,600 56 T renching and Backfi ll (8 '-10 ' De pth) Stru ctural L.F . 7 18 57 T renching and Backfill (10'-1 2' Depth), Structural L.F . 12 1 58 T renching and Backfi ll (12 '-1 4 " Depth), Structural L.F . 148 59 T renching and Backfill (14 '-1 6" Depth), Structura l L.F. 337 60 Standard Manhol e 0 -6 ft. dee p EACH 19 61 Extra Depth for Std . Manhol e V.F . 47 .6 62 Sho rt Si de 4" Sewer Service(< 20') EACH 24 63 Long Si de 4" Sewer Service (>20') EACH 13 64 Connect to E xisti ng Manhol e EACH 2 65 TV Inspection L.F. 5,35 1 66 Trench Safety (sewe r) L.F . 5,35 1 Sewer Sys tem Subto tal Erosion Control Construction E ro sion Control P lan & Se dime ntation Control (per Item 67 106) (includes sil t fenc ing, constru ction exits , straw bale L.S . l barriers , inlet protectio n, grass seeding, and any other sedi mentati on contro l devices) E ro sio n Control Su btotal TOTAL CONSTRUCTION COST I The above constructi on estimate is base d on th e e nginee r 's prelim inary op ini on of probabl e construction costs . T hi s estimate con stitutes our bes t j udgment at thi s time . Pl ease no te that the engineer does not have any control ove r contractor or sup plier 2 of2 250 .00 250 .00 250 .00 300.00 1,100 .00 1,100 .00 950 .00 1,250.00 1,450 .00 17 .00 15 .00 18 .00 19 .00 20 .00 2 1.00 22.00 23 .00 24 .00 2,500 .00 250 .00 600.00 1,3 50 .00 1,000 .00 3.50 1.00 22 ,500 Total 750 250 250 300 1,100 3,300 16 ,150 1,250 30 ,450 $283 ,9 15 90 ,967 0 36,4 14 10 ,070 32 ,000 15 ,078 2,662 3,40 4 8,088 47 ,500 11 ,900 14 ,400 17 ,550 2,000 18 ,729 5,3 5 1 $316 ,113 22 ,500 $22 ,500 $1,852,086 Item # I 2 3 4 5 6 7 8 9 IO 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2 7 28 29 30 3 1 32 33 34 35 36 37 38 PEBBLE CREEK PHASE 7D MBESI PROJ #: 1065-0019 Engineer's Preliminary Estimate of Project Costs June 18, 20 14 Description Unit Quantity Unit Price Paving Construction Mobilization and Staking L.S. 1.00 9,000.00 Earthwork C.Y. 11 ,500 6 .00 6" Lime Stabilized Sub ade 6% b wei ht S.Y. 22,963 4.13 6" Crushed Limestone Base S.Y. 9,827 10.31 8" Crushed Limestone Base S.Y. 7 ,3 63 13.75 2" HMAC Surface Course includin rime coat S.Y. 17 ,190 11 .5 0 Concrete Curb and Gutter all es L.F. 11 ,145 11.00 6" Reinforced Concrete Pavement S.Y. 987 38.00 4" Reinforced Concrete Sidewalk S.F. 59,452 3 .50 Sidewalk Ram s EACH 10 750.00 Paving Subtotal Draina e S stem Construction 18" RCP , ASTM C76, CLIII L.F. 805 45.00 24" RCP , ASTM C76, CUil L.F . 1,6 85 60.00 30" RCP , ASTM C76, CLIII L.F . 551 75 .00 5' Rec . Inlet EACH 18 3,000.00 S.E.T. EACH 2 1,600 .00 S.Y . 75 50.00 L.F. 3 041 3.50 Draina e System Subtotal w s ater iystem c onstruction 12" PVC , C909 Cl 200, Water Line, Non-Str . Backfill L.F. 0 12" PVC , C909 Cl 200, Water Line, Str . Backfill L.F. 1,86 8 45.00 8" PVC , C909 Cl 200, Water Line, Non-Str. Backfill L.F. 0 8" PVC , C909 Cl 2 00 , Water Line, Str. Backfill L.F. 2 ,656 27.00 6" PVC , C909 Cl 200, Water Line, Non-Str. Backfill L.F . 0 6" PVC , C909 Cl 2 00 , Water Line, Str. Backfill L.F. 738 24.00 4" PVC , C909 Cl 200 , Water Line, Non-Str. Backfill L.F. 0 4" PVC , C909 Cl 200, Water Line, Str . Backfill L.F. 312 18 .00 Fire Hydrant Assembly EAC H 5 3 ,500.00 12"x8" M.J . Tee EACH 2 675.00 8"x8" M.J . Tee EACH 1 475.00 8"x6" M.J . Tee EACH 3 400.00 12" Gate Valve EAC H 3 2,200.00 8" M.J. Gate Valve EACH 7 1,250.00 6" M.J . Gate Valve EACH 3 950.00 12"xl3" M.J. Anchor Coupling EACH 0 8"x13" M.J. Anchor Coupling EACH 0 2" Blow Off Valve Assembly EAC H I 1,100 .00 Connect to Existing Waterline EACH 3 1,100 .00 Water Service, 1.5" short side EACH 19 800.00 Water Service, 1.5" long side EACH 22 1,45 0.00 Water System Subtotal I of2 Total 9,000 69 ,000 94,837 101 ,3 16 101 ,2 41 197 ,6 85 122 ,5 95 37,506 208,082 7,500 $948 ,763 36,225 I 01, 100 41 ,325 54,000 3,200 3 ,750 10 ,644 $250,244 84,060 71 ,712 17 ,712 5,616 17 ,500 1,350 475 1,200 6,600 8,750 2,850 1,100 3,300 15 ,200 3 1,9 00 $269,325 PEBBLE CREEK PHASE 7D MBESI PROJ #: 1065-0019 Engineer's Preliminary Estimate of Project Costs June 18, 2014 Item# I Description Unit Quantity Unit Price s s ewer System c onstruction 39 24" PVC, D-3034 SDR 26 L.F. 0 40 8" PVC, D-3034 SDR 26 L.F. 3,215 41 6" PVC, D-3034 SDR 26 L.F. 2,136 42 Trenching and Backfill (5'-8' Depth) L.F. 5,351 43 Standard Manhole, 0-6 ft . deep EACH 18 44 5' Diam . Manhole, 0-6 ft. deep EACH 0 45 Extra Depth for Std. Manhole V.F. 35 46 Extra Depth for 5' Diam. Manhole V .F. 0 47 Short Side 4" Sewer Service('.:: 20') EACH 25 48 Long Side 4" Sewer Service (>20') EACH 22 49 Connect to Existing Manhole EACH 2 50 TV Inspection L.F. 5,351 51 Trench Safety (sewer) L.F. 5,3 51 Sewer System Subtotal Erosion Control Construction Erosion Control Plan & Sedimentation Control (per Item 52 106) (includes silt fencing, construction exits, straw bale L.S . l barriers, inlet protection , grass seeding, and any other sedimentation control devices) Erosion Control Subtotal TOTAL CONSTRUCTION cosT I The above construction estimate is based on the engineer's preliminary opinion of probable construction costs. This estimate constitutes our best judgment at this time. Please note that the engineer does not have any control over contractor or supplier 2 of2 17.00 15 .00 18.00 2,500.00 250.00 600 .00 1,350.00 1,000.00 3 .50 1.00 22,500 Total 54,655 32,040 96 ,3 18 45,000 8,750 15 ,000 29,700 2,000 18,729 5,351 $307,543 22 ,500 $22,500 $1,798,374 Kevin Ferrer From: Sent: To: Jeff Robertson <jeffr@mcclurebrowne.com> Friday, December OS, 2014 4:S6 PM Kevin Ferrer Subject: Re: Pebble Creek 70 OK, please let me know if you have any questions when you're looking at them. The owner would like to get started as soon as he can. Thanks Jeff On 12/5/2014 3:00 PM, Kevin Ferrer wrote: Jeff, I didn't get a chance to look at Pebble Creek plans since I'm still reviewing other projects that were submitted prior your submittal. Regarding the Op request reference, I'll get back to you when I hear back from the Utility Department. I'll get back to you as soon as possible . Thanks, Kevin From: Jeff Robertson [mailto:jeffr@mcclurebrowne.com] Sent: Friday, December OS, 2014 12:06 PM To: Kevin Ferrer Subject: Pebble Creek 70 Kevin, Do you know when the Pebble Creek plans will be approved? The owner wants to start on that construction ASAP. Also, do you have the actual participation agreement that the performance bond needs to reference for the OP request? The bonding company is needing a copy of that in order to issue the bond. Thanks Jeff Jeffery L. Robertson , P.E. Vice-President Engineering McClure & Browne Engineering/Surveying, Inc. 1008 Woodcreek Drive, Ste . 103 College Station, Tx 77845 1 PH : (979) 693-3838 FX: (979) 693-2554 jeffr@mcclurebrowne.com CONFIDENTIAL NOTICE: The information contained in this transmission is considered by the sender to be confidential. Th is materia l is intended only for use of the recipient named above . If the reader or other recipient of this material is not the intended recipient named above, please notify me and delete this transmission. Thank you . AGREEMENT FOR ELECTRONIC FILES: is understood and agreed that McClure & Browne Engineering/Surveying , Inc ., upo n release of these electronic files is no longer responsible for their use or modification . The user of the attached electron ic med ia accepts full responsibility and liability for any consequences arising out of the use of this electronic data . City of College Station Home of Texas A&M University ® Jeffery L. Robertson , P.E . Vice-President Engineering McClure & Browne Engineering/Surveying, Inc. 1008 Woodcreek Drive , Ste . 103 College Station , Tx 77845 PH : (979) 693-3838 FX: (979) 693-2554 jeffr@mcclurebrowne.com CONFIDENTIAL NOTICE: The information contained in this transmission is cons idered by the sender to be confidential. This material is intended only f, use of the recipient named above . If the reader or other recipient of this material is not the intended recipient named above , please notify me and delete th transmission . Thank you . AGREEMENT FOR ELECTRONIC FILES: is understood and agreed that McClure & Browne Engineering/Surveying , Inc., upon release of these electron files is no longer responsible for their use or mod ification . The user of the attached electronic media accepts full responsibility and liability for ar consequences arising out of the use of this electronic data . 2 CITY OF C oll.EGE STATION HoTM ofTtxAS A&M Un iversity• FOR OFFICE USE ONLY CASE NO .: ltj • \ (/ 0 DATE SUBMITTED : {a . I Ci . /cJ TIME : J : JS STAFF: y\(._ FINAL PLAT APPLICATION (Check one) D Minor ($700} D Amending ($700) ~Final ($932) D Vacating ($932) 0Replat ($932) Is this plat in the ET J? D Yes (8) No Is this plat Commercial D or Residential ~ MINIMUM SUBMITTAL REQUIREMENTS: (8) $700-$932 Final Plat Application Fee (see above). O $233 Waiver Request to Subdivision Regulations Fee (if applicable). (8) $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee . Fee is 1 % of acceptable Engineer's Estimate for public infrastructure , $600 minimum (if fee is > $600 , the balance is due prior to the issuance of any plans or development permit). (8) Appl ication completed in full . This application form provided by the City of College Station must be used and may not be adjusted or altered. Please attach pages if additional information is provided . (8) Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.) (8) Two (2) copies of the grading , drainage , and erosion control plans with supporting drainage report. (8) Two (2) copies of the Public infrastructure plans and' supporting documents (if applicable). O Copy of original deed restrictions/covenants for replats (if applicable). (8) Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate current within n inety (90) days . The report must include applicable information such as ownership , liens , encumbrances , etc. (8) Paid tax certificates from City of College Station , Brazos County and College Station l.S.D. (8) The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not. NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be conside red complete. If the mylar is submitted with the final plat application , it shall be considered a submittal for the preliminary plan project and processed and reviewed as such . Until the mylar has been confirmed by staff to be correct , the final plat application will be considered incomplete. Date of Optional Preapplication or Stormwater Management Conference NAME OF PROJECT Pebble Creek Phase 70 ADDRESS SPECIFIED LOCATION OF PROPOSED PLAT: Adjacent to Pebble Creek Parkway and Pebble Creek Phase 7C APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name Pebble Creek Land Company (Davis Young) E-mail davis.y@pebblecreektx.com Street Address 5102 Stonewater Loop City College Station Zip Code 77845 ------State Tx --------- Phone Number 979-690-0992 Fax Number ~--------------- Revised 4/14 Page 1of 9 A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable): Requested waiver to subdivision reQulations and reason for same (if applicable): Regarding the waiver request , explain how: 1. There are special circumstances or conditions affecting the land involved such that strict application of the subd ivision regulations will deprive the applicant of the reasonable use of his land . 2 . The wa iver is necessary for the preservation and enjoyment of a substantial property right of the applicant. 3. The granting of the waiver will not be detrimental to the publ ic health, safety , or welfare, or i njurious to ot her property in the area , or to the City in administering subdivision regulations . 4 . The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the provisions of the Unified Development Ordinance. Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable): 1. I An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way ; 2. I The presence of unique or unusual topographic , vegetative , or other natural conditions exist so that strict adherence to the sidewalk requirements of the UDO is not physically feasible or is not in keeping with the purposes and goals of the UDO or the City's comprehensive Plan ; 3. I A cap ital improvement project is imminent that will include construction of the required sidewalk. Imminent shall mean the project is funded or projected to commence within twelve (12) months ; 4. I Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I rural context ; 5. I When a sidewalk is required along a street where a multi-use path is shown on the Bicycle, Pedestrian , and Greenways Master Plan ; Revised 4/14 Pag e 3 of 9 I I 6. r 1· The proposed development is within an older residential · subdivision meeting the criteria in Platting and Replatting within Older Residential Subdivisions Section of the UDO; or 7 . r1 The proposed development contains frontage on a Freeway I Expressway as designated by Map 6 .6, J Thoroughfare Plan -Functional Classification, in the City's Comprehensive Plan. Detaile explanation of condition identified above: NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the same time by the Planning & Zoning Commission . To I Linear Footage of roposed Public: ~Streets tJ, 00 J Sidewalks 5'35o Sanitary Sewer Lines Channels Storm Sewers () Bike Lanes I Paths Parkland Dedication due prior to filing the Final Plat: ACREAGE : ___ No. of acres to be dedicated + $ ____ development fee ___ No. of acres in floodplain ___ No. of acres in detention ___ No. of acres in greenways OR FEE IN LIEU OF LAND : __ No. of SF Dwelling Units X $ = $ -------~ (date) Approved by Parks & Recreation Advisory Board ---- NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are I true, corredt, and complete. IF THIS APPL/CAT/ON IS FILED BY ANYONE OTHER THAN THE OWNER OF THE PROPERTY. this application must be accompanied by a power of attorney statement from the owner. If there is more than one o~ner, all owners must sign the application or the power of attorney. If the owner is a company, the application must be a · mpanied by proof of authority for the company's representative to sign the application on its behalf. LIEN HOLDERS dentified in the title report are also considered owners and the appropriate signatures must be provided as described a ve . Signature a Date Revised 4/14 Page4 of9 CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner · ertification: 1. No lork of any kind may start until a permit is issued . 2. Thei pennit may be revoked if any false statements are made herein . 3 . If reyoked, all work must cease until permit is re-issued . 4. Dev~' lopment shall not be used or occupied until a Certificate of Occupancy is issued . 5. The permit will expire if no significant work is progressing within 24 months of issuance. 6. 0th r permits may be required to fulfill local, state, and federal requirements. Owner will obtain or show co~liance with all necessary State and Federal Permits prior to construction including NOi and SWPPP. 7. If r uired, Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pou and post construction. 8. Ow r hereby gives consent to City representatives to make reasonable inspections required to verify comfliance. 9. If, st rmwater mitigation is required, including detention ponds proposed as part of this project, it shall be desi · ned and constructed first in the construction sequence of the project. 10. In adcordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to in~ure that all debris from construction, erosion , and sedimentation shall not be deposited in city streets, or exis~g drainage facilities . All development shall be in accordance with the plans and specifications submitted to and pproved by the City Engineer for the above named project . All of the applicable codes and ordinances of the City f College Station shall apply. 11. The i formation and conclusions contained in the attached plans and supporting documents will comply with the curre t requirements of the City of College Station, Texas City Code , Chapter 13 and associated BCS Unified Design Guidelines Technical Specifications, and Standard Details. All development has been designed in accofidance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 12. Relea~e of plans to (name or firm) is authorized for bidding purposes only. \ understand that final approval and release of plans and development for construction is contingent on cont~ctor signature on approved Development Permit. 13. I, THE OWNER, AGREE TO AND CERTIFY THAT All STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPMENT PERMIT APPLICATION, ARE , TO THE BEST OF MY KNOWLEDGE. TRUE, AND I / t2U3! IL/ ACCWRATE~ I Propertv Ow~ Date / I Engin ~r Certification: 1. The project has been designed to ensure that stormwater mitigation, including detention ponds, proposed as part of th'e project will be constructed first in the construction sequence. 2. I will l obtain or can show compliance with all necessary Local, State and Federal Permits prior to construction incIJding NOi and SWPPP. Design will not preclude compliance with TPDES: i.e., projects over 10 acres may requ re a sedimentation basin . 3. The nformation and conclusions contained in the attached plans and supporting documents comply with the curr nt requirements of the City of College Station , Texas City Code, Chapter 13 and associated BCS Unified Desi n Guidelines. All development has been designed in accordance with all applicable codes and ordinances of th City of College Station and State and Federal Regulations . 4 . I, TH ENGINEER, AGREE TO AND CERTIFY THAT All STATEMENTS HEREIN, AND IN ATTACHMENTS FORITHE DEVELOPMENT PERMIT APPLICATION, ARE. TO THE BEST OF MY KNOWLEDGE , TRUE , AND ACCURA Engin Date Revised 4/14 Page 5 of 9 ------------- The following CERTIFICATIONS apply to development in Special Flood Hazard Areas. Required for Site Plans, Final Plats, Construction Plans, Fill / Grading Permits, and Clearing Only Permits:* A. I, ...,.\ftYf\l-) i . BkJ?v . .J certify, as demonstrated in the attached drainage study , that the alterations or development covered by this permit, shall not: (i) increase the Base Flood elevation ; (ii) create additional areas of Special Flood Hazard Area; (iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway and where the velocity of flow in the Base Flood event is greater than one foot per second . Th is area can also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or areas where the depth of from the BFE to natural ground is 18 inches or greater; (iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyo nd the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than one foot per second without acceptable compensation as set forth in the City of College Station Code of Ordinances , Chapter 13 concerning encroachment into the Special Flood Hazard Area; nor (v) increase Base Flood velocities. pted by ordinance in Section 5.11 .3a of Chapter 13 Code of Ordinances . Engi Date Initial D * If a platting-status exemption to this requirement is asserted, provide written justification under separate letter in lieu of certification. Required for Site Plans, Final Plats, Construction Plans, and Fill / Grading Permits: B. I, , certify to the following : (i) that any nonresidential or multi-family structure on or proposed to be on this site as part of th is application is designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm . Engineer Date Additional certification for Floodway Encroachments: C. I, , certify that the construction , improvement, or fill covered by th is ~~~~~~~~~~~~~~~~ permit shall not increase the base flood elevation . I will apply for a variance to the Zoning Board of Adj ustments . Engineer Date Revis ed 4/14 Page 6 of 9 Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate required). Residential Structures: D. I, , certify that all new construction or any substantial improvement of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an elevation at least one foot above the Base Flood Elevation . Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-pour) and post construction . Engineer I Surveyor Date Commercial Structures: E. I, -----------------, certify that all new construction or any substantial improvement of any commercial , industrial, or other non-residential structure are designed to have the lowest floor, including all utilities, ductwork and basements, elevated at least one foot above the Base Flood Elevation Engineer I Surveyor Date OR I, , certify that the structure with its attendant utility , ductwork , basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities, ductwork, basement and sanitary facilities are designed to be watertight and impermeable to the intrusion of water in all areas below the Base Flood Elevation, and shall resist the structural loads and buoyancy effects from the hydrostatic and hydrodynamic conditions . Required Elevation Certificates will be provided with elevations certified during construct ion (forms at slab pre - pour) and post construction . Engineer I Surveyor Date Conditions or comments as part of approval : Revised 4/14 Page 7 of 9 Kevin Ferrer From: Sent: To: Jeff Robertson <jeffr@mcclurebrowne.com > Friday, December 12, 2014 9:41 AM Kevin Ferrer Subject: Re : Pebble Creek 70 Attachments: Exhibit C-1 revised 12 -12 -14.pdf; 10650019-DM -12 -12-14.pdf Here are my concerns/questions: 1. Fire Hydrants are labeled on overall plan with a "FH" leader. 2. Is the problem with Inset A on Sheet C4.1 the hydrant that has been removed? 3. I believe the area of water line WA-1 that is 6.5' deep is along the Pebble Creek Pkwy. That section was approved with the Pebble Creek Pkwy plans. Is there another area you were looking at? 4. Drainage Area 4.5 has a flow rate of28.3 when combined , but the drainage comes from 2 directions. The attached drawing shows a red area and a green area of this drainage area that represents the two directions. The red area is larger (4.0 acres) and is less than the street capacity when analyzed in this fashion. 5. I'm not sure I understand what you are wanting on the outfall on SD-3. Can you send me a sketch? We originally had the headwall 90 degrees to the creek to reduce the potential for water in the creek to undermine the S.E.T. When we turned the headwall per the last comments, we added a bend without a junction box because this has been allowed in the past and a junction box will stick up well above existing ground and will create an eye sore in this back yard. I would like to just reprint the sheets that are affected and switch them out with the drawings you already have to save on printing . Thanks Jeff On 12 /11 /2014 4:58 PM , Kevin Ferrer wrote: Jeff, I have a sh ort window tomorrow. I can meet between 10:30 t i ll 12. Plea se let me know . Th an ks, Kevin From: Jeff Robertson [mailto:jeffr@mcclurebrowne.com] Sent: Thursday, December 11, 2014 4 :27 PM To: Kevin Ferrer Cc: Danielle Singh; Jennifer Prochazka Subject: Re: Pebble Creek 7D Are you available in the morning, can I come discuss these comments with you? We already have cleared/graded this phase . Thanks Jeff On 12/11/2014 4:17 PM, Kevin Ferrer wrote: 1 1/4_:_1FT. I I r I 50' R.O .W. 28' B.C. -B.C . Flow Area ( 10 year) = 5.50 sf f Wetted Perimeter = 28.4 LF 2:Q2! I TYPICAL 28' PAVEMENT SECTION NTS Q = 1.49 0.018 ~2f.3, )1h 5.50 \ 28.4 J \ 0.0067* = 12.5 cfs ** 11' 1/4• /FT. I I * -Lowest Street Grade in Phase 70 with largest drainage areas (Quarry Oaks) ** -Exceeds all flows in residential streets per Exhibit C-1 . 60' R.O.W. 39' B.C. TO B.C. 10.5' 1/4" /Fl.-- 1 ! Flow Area (10 year) = 7.28 sf Wetted Perimeter = 32.08 LF 2:Q2! """''''' --1/4" /Ft. 1111/A I I TYPICAL 39' PAVEMENT SECTION Q = 1.49 0.018 NTS ~%, )1/2 7.28 \ 32.081 \ 0.01 O* = 22.4 cfs ** * -Lowest Street Grade in Phase 70 (Royal Adelade Loop) ** -Exceeds all flows in collector streets per Exhibit C-1 . EXHIBIT D-1 I 10-year Street Capacity PEBBLE CREEK PHASE 7C COLLEGE STATION, BRAZOS COUNTY, TEXAS ;::.;; 1008 Woode~ Drlvrl, Sulttt 10.J, Collttgtt Station, TX 77845 ~ <kCLURE ~ BROWN£ £NGtN££mNG/SVRV£>1NG, WC. • (979) 69J-J8.J8 Fax: (979) 69J-2~ Rrm Rttg. No. F-458 Kevin Ferrer From: Sent: To: Subject: Danielle/Kevin, Jeff Robertson <j effr@mcclurebrowne.com > Friday, November 21, 2014 11:23 AM Kevin Ferrer; Danielle Singh Pebble Creek 70 I'm working on the comments on Phase 7D of Pebble Creek and I have a few questions for you: I. Can you clarify what you mean in comment 12 that the water and sewer lines are mislabeled? 2 . The sewer service flow line at the end shown in the plan view represents the elevation of the bend or wye (See Detail S7-00 and S7-01), not the riser. It is up the contractor to build the riser to within 3.5' of proposed grade. Do you want us to change the label to state the e levation is at the bend? 3 . I'm unclear of what you want us to do with the headwall for SD-3. Do you want us to point the headwall downstream? The headwall is currently ~10' back from the flowline of the creek. Thanks Jeff Jeffery L. Robertson , P.E. Vice-President Engineering McClure & Browne Engineering/Surveying, Inc. 1008 Woodcreek Drive , Ste . 103 College Station , Tx 77845 PH : (979) 693-3838 FX: (979) 693-2554 jeffr@mcclurebrowne.com CONFIDENTIAL NOTICE : The inform ation contained in this transmission is considered by the sender to be confidential. This material is intended only f, use of the recipient named above . If the reader or other recipient of this materia l is not the in tended recipient named above, please notify me and delete th transmission . Thank you. AGREEMENT FOR ELECTRONIC FILES : is understood and agreed that McClure & Browne Engineerin g/Surveying , Inc., upon release of these electron files is no longer responsible for their use or modification . The user of the attached electronic media accepts full responsibility and liability for ar consequences arising out of the use of this electronic data . 1 CITY or C oli.EGE STATION Home of Texas A&M University' TI M E : STAFF : ==:,,~._,t.~~~~~~~ PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. D New Project Submittal D Incomplete Project Submittal -documents needed to complete an application . Case No.: ~ Existing Project Su bmittal. Case No .: 14-160 Project Name Pebble Creek 70 Contact Name Jeff Robertson ~~~~~~~~~~~~~~~~ Phone Number 693-3838 ~~~~~~~~~~~~~~ We are transmitting the following for Planning & Development Services to review and comment (check all that apply): D Comprehensive Plan Amendment D Rezon ing Application D Conditional Use Permit D Prelim inary Plan D Final P lat D Development Plat D Site Plan D Special D istrict Site Plan D Specia l D istrict Bu il d ing I Sign D Landscape Plan D Non-Res idential Architectu ral Standards D Irrigation Plan D V ariance Request D Development Permit D Development Exaction Appeal 0 FEMA CLOMNCLOMR/LOMA/LOMR D Grading Plan D Other -Please specify be low INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. T he following are included in the complete set: D Comprehensive Plan Amendment D Waterline Construction Documents D TxDO T Driveway Permit D Sewerline Construction Documents D TxDO T Utility Perm it D Street Construction Documents ~ Drainage Letter o r Report D Easement Appl icat ion ~ Fire Flow Ana ly sis D Other -Please specify Special Instructions : 10/10 Print For ~ CnY or Cm.LE GE STATT ON Home ofTexas A&M University' FOR OFFICE USE ONLY CASE NO .: 14 -lloV DATE SUBMITTED: (JO\\ \'"2--I (q T IME : \Q '. OS STAFF : • f\J PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. D New Project Submittal D Incomp lete Project Submittal -documents needed to complete an application . Case No .: [g] Existing Project Submittal. Case No .: 14-160 Project Name Pebble Creek Phase 70 Contact Name Jeff Robertson ----------------Phone Number _9_79_-_6_9_3-_3_8_3~8 ________ _ We are transm itting the following for Planning & Development Services to review and comment (check all that apply ): D Comprehensive Plan Amendment D Rezoning Applicat ion D Conditional Use Permit D Preliminary Plan D Final Plat D Development Plat D Site Plan D Special District Site Plan D Special District Building I Sign D Landscape Plan D Non-Residential Architectural Standards D Irrigation Plan D Variance Request D Development Permit D Development Exaction Appeal 0 FEMA CLOM NCLO MR /LOMA/LOMR D Grading Plan D Other -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment [g] Waterline Construction Documents D TxDOT Driveway Permit [g] Sewerline Construction Documents D TxDOT Utility Perm it [g] Street Construction Documents D Drainage Letter or Report D Easement Application D Fire Flow Analysis D Other -Please specify Special Instructions : 10/1 0 Print Form C ITY OF C OLI.EGE STATIO r Home o/Texas A&M University' FOR OFFICE USE ONLY CASE NO.: ~y -\ l.J) 0 DATE s usMITTED : og ('d..~ / 14 TIME : .@. ·.oo STAF F: -+-A ..... :f~------- PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. D New Project Submittal D Incomplete Project Submittal -documents needed to complete an application. Case No.: ~ Existing Project Submittal. Case No .: 14-160 Project Name Pebble Creek Phase 70 Contact Name ~Je~ff_R_o_b _ert_s_o_n __________ _ Phone Number 979-693-38 -------------~ We are transmitting the following for Planning & Development Services to re view and comment (check all that apply): D Comprehensive Plan Amendment D Rezoning Application D Conditional Use Permit D Prel i minary Plan ~ Final Plat D Development Plat D Site Plan D Special District Site Plan D Special District Building I Sign D Landscape Plan D Non-Residential Architectural Standards D Irrigation Plan D Varia nce Request D Development Permit D Devel opment Exaction Appeal D FEMA CLOMA/CLOMR/LOMA/LOMR D Grading Plan D Other -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment D Waterli ne Construction Documents D TxDOT Driveway Permit D Sewerline Construction Documents D TxDOT Utility Perm it D Street Construction Documents ~ Drainage Letter or Report D Easement Application ~ Fire Flow Analysis D Other -Please specify Special Instructions: 10/10 Print Form Cnv or COLLEGE STATION Home of Texas A&M University' FOR OFFICE USE ONLY CASE NO.: \q -,11Q0 DATE SUBMITTED :~\ ~0\00 \ lL-\ TIME : _.\-'· Q~Q ______ _ ST AFF : ~kS'-'"'~-l-------- PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. 0 New Project Subm ittal D Incomplete Project Submittal -documents needed to complete an application . Case No .: ~ Ex isting Project Submittal. Case No .: 14-160 Project Name Pebble Creek 70 Contact Name _J_eff_R_o_b_ert_s_o_n __________ _ Phone Number 9 79-693-3838 -------------~ We are transmitting the following for Planning & Development Services to review and comment (check all that apply ): 0 Comp re hensive Plan Amendment D Rezon ing Application 0 Conditional Use Pe rm it 0 Prel imin ary Plan ~ Final Plat D Development Plat D Site Plan D Special District Site Plan 0 Special District Build in g I Sign 0 Landscape Plan D Non-Residential Architectural Standards D Ir rigation Plan D Variance Request D Development Permit 0 Development Ex action Appeal D FEMA CLOMA/CLOMR/L OMA/LOMR 0 Grading Plan 0 Oth er -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment ~ Waterline Construction Documents D TxDOT Driveway Permit ~ Sewerli ne Construction Documents D TxDOT Utility Perm it ~ Street Constru ct ion Documents ~ Drainage Letter or Report D Easement Application ~ Fire Flow Analysis D Other -Please specify Special Instructions : 10/10 Print Form ) McCLURE & BROW N E, ENGI N EE R ING /SURVEYI N G, I N C. 1008 Woodcree k Dr., Sui te 103 ·Coll ege Station , T x . 7784 5 · (979) 693-3838 1314 10 th Stree t , Suite 2 10 Huntsvill e, Tx. 77320 · (936) 294-9749 Novembe r 4 , 20 14 Ms . Dan ielle Singh , PE City of College Station Post Office Box 9960 College Station , TX 77842 Re .: LETTER ACKNOWLEDGING CITY STANDARDS Pebble Creek Phase 7D MBESI No . 1065-0019 Dear Ms . Singh : Engi neer Reg. No . F-458 Survey Reg . No. 101033-00 The pu rpose of th is letter is to acknowledge that the construction plans for the street , drainage , water, s idewalk , and sanitary sewer for the above-referenced project , to the best of my knowledge , do not deviate from the B/CS Design Guideline Manual except as follows : Sanitary Sewer p ipe slopes are less than minimum in the B/CS Design Gu idelines , but greater than TCEQ minimums . I also ack nowledge , to the best of my knowledge , that the details provided in the construction plans are in accordance with the Bryan/College Station Standard Details . Line B 3: " 0 E ~ -0 w: " 0 " c z" Oil b "' E -o <= "' " From To " ·.;:::: C.."'O -0 0 0 :J :J 0 ~ ~ z cg E Z "'- 3: c 0 0 0 <!::: w: u 267 G PD pe r MH # MH# Lot GPD Outfall #I I 2 15 4 ,005 - 2 5 12 3,204 4 ,005 3 4 7 1,869 - 4 5 3 801 1,869 5 17 15 4 ,005 9 ,879 6 8 3 801 - 7 8 7 1,869 - 8 I O 4 1,068 2 ,670 9 10 8 2 ,136 - I O 12 3 801 5,874 11 12 8 2 ,136 - 12 14 3 80 1 8,811 13 14 6 1,60 2 - Exhibit E Pebble Creek P hase 7D Sa nitary Sewer Analysis Flow Ca lcul ations Average Dai ly In fi lt ra ti on Peak in g Peak In side Size Material Flows (ADF) (10%ADF) Factor Flows Diameter GPD CFS CFS CFS (in .) In ches 4 ,005 0.0062 0.0006 4 .00 0.03 8 D3034 7.754 7,209 0.0 112 0.00 11 4 .00 0 .05 8 D3034 7.754 1,869 0 .0029 0.0003 4 .00 0 .0 1 8 D3034 7 .754 2 ,670 0 .0041 0 .0004 4 .00 0 .02 8 D3034 7 .754 13 ,884 0 .0215 0 .0021 4 .00 0.09 8 D3034 7 .754 801 0.00 12 0 .0001 4 .00 0.0 1 8 D3034 7 .754 1,869 0.0029 0 .0003 4 .00 0 .01 8 D3034 7 .754 3 ,738 0 .0058 0 .0006 4 .00 0 .02 8 D3034 7 .754 2 ,136 0.0033 00003 4 .00 0 .01 8 D3034 7 .754 6,675 0 .0103 0 .00 10 4 .00 0 .04 8 D3034 7 .754 2 ,136 0.0033 0 .0003 4 .00 0 .01 8 D3034 7 .754 9,6 12 0.0 14 9 0.00 15 4.00 0.06 8 D3 034 7.754 1,602 0.0025 0.0002 4 .00 0 .0 1 8 D3 034 7 .754 Pipe Calc ul ation s Manning Manning Min . Ave . Daily Ave . Dail y Friction Friction De sign Flow Flow Slope S lope Slope Velocity Depth Peak ADF A DF Flows % % fp s Inches % 0.000 149 0.33 0.62 0 .00 0.0005 0 .000484 0.33 1.19 0.00 0 .00 17 0 .000033 0.33 0 .00 0 .00 0 .000 1 0 .000066 0 .33 0 .00 0 .00 0 .0002 0 .00 1796 0.33 0 .96 0 .78 0 .0062 0 .000006 0 .33 0.00 0 .00 0 .0000 0 .000033 0.33 045 0 .00 0 .0001 0 .000 130 0.33 0 .63 0 00 0.0005 0 .000042 0 .33 0 .56 0 .00 0 .000 1 0 .000415 0 .33 0 .83 0.39 0 .00 14 0 .000042 0 .33 0 .56 0 .00 0.000 1 0.00086 1 0.33 0.85 0.39 0.0030 0 .000024 0.33 045 0 .00 0 .000 1 Act ual Min . S lope for Design Ex istin g Slope Peak or Des igned Flows Sy stems % % 0.33 0.33 0.33 1.19 0.33 2.08 0 .33 2 .86 0 .33 040 0.33 040 0.33 040 0.33 040 0.33 040 0.33 045 0.33 040 0.33 040 0.33 040 Pipe Peak lope Flow Check Velocity fps OK 0.91 OK 1.74 OK 1.27 OK 1.69 OK 1.45 OK 0 .56 OK 0 78 OK 0 .96 OK 0 .82 OK 1.22 OK 0.82 OK 1.28 OK 0.74 I 0650019-Sewer.x ls 11 /6/2014 Exhibit E Peak Flow Depth In ches 0.78 0.78 0 .31 0.23 1.55 0 .23 0.39 0 78 0.39 1.16 0.39 1.1 6 0 00 1111 McCLU R E & BRO WNE, ENG I NEE RI NG /SU R VEY I NG, INC . 1008 Woodcreek Dr., Suite 103 ·Coll ege Station, Tx. 77845 · (979) 693-3838 1314 10th Street , Suite 2 10 Huntsvil le , Tx. 77320 · (936) 294-9749 September 24 , 2014 Ms. Danielle Singh , PE City of College Station Post Office Box 9960 College Station , TX 77842 Re .: LETTER ACKNOWLEDGING CITY STANDARDS Pebble Creek Phase 7D MBESI No. 1065-0019 Dear Ms . Singh : Engi nee r Reg . No . F-458 Survey Reg . No. 10 10 33-00 The purpose of th is letter is to acknowledge that the construction plans for the street , drainage , water, sidewalk , and sanitary sewer for the above-referenced project , to the best of my knowledge , do not deviate from the B/CS Design Guideline Manual except as follows : I also acknowledge , to the best of my knowledge , that the details provided in the construction plans are in accordance with the Bryan/College Station Standard Details. ,,, The Wallace Group, Inc. Engineers • Architects • Planners • Surveyors Waco • Kiiieen • Austin Gale Arnold, R.P.L.S . Geot'ge Jezek. A.I.A. Mike Keahey, P.E .. R.P.L.S. June E. Lykes. P.E. J.A. ·Jake " Pavlas. Jr .. P.E . Chris Ruiz. P.E. George E. "Jed" Wolker, Jr .. P.E. R.E. "Bob" Wotlace, P.E .. R.P.L.S . ~~ A\ vv' D~ /\~ t Otto E. Wiederhold, P.E. John F. Winkler, P.E. \ o~· . January 14, 1998 City of College Station /I . ~ dt l i/J (o, _.--< ~ P . 0 . Box 9960 lf1)JP' /V"' College Station, Texas 77842-0960 Attn: Re' Pebble Creek Phase 7 A, Variance Request ·~-AJ~ .j..-0 . ,fa-- Dear Sheri' rr~ ;v(RY~ On behalf of the owner of Pebble Creek Development Co., Mr. F.M. Young, we hereby request a k.0~ W variance to the City of College Station's Subdivision Ordinance. Specifically, the Developer~ desires not to extend Pebble Creek Parkway nor the 12-inch water line during the construction of Phase 7A because of the following reasons: 'f;J).. • The extension will not be used by vehicular traffic. . '(}>Y • The 12-inch waterline will not have any services, and thus the potential for stagnant ~ water will be high. Jl • The pavement will most likely suffer from surface failures since it will not be {gl' Z1) 1 . , _ "exercised" by traffic. ~ • The extension is not needed for emergency vehicles. The Developer understands that he will have to complete the parkway and waterline prior to opening any lots to the south of Phase 7 A (see attached map). If you need any additional infonnation regarding this issue, please call me . Sincerely, eorge E. "Jed" Walker, Jr. P.E . The Wallace Group, Inc . · Cc: F .M. Young Davis Young File #8803 GW:ab P.O . Box 22007. Waco. Texas 76702 · 8225 Central Park Drive · Waco, Texas 76712 (254) 772-9272 · Telefax (254) 776-2924 · STAFF REVIEW COMMENTS NO . 1 Project: Pebble Creek Ph 7 d (FP) ( 14-00900160) PLANNING 1. Repeat Comment: Please provide an index sheet showing the entire subdivision w ith matchline and label the matchl i nes on the other pages . To cla rify , Sec. 12-3.4.C .3 .b.4) of the Un ified Development Ordinance requires t hat when the plat is on more than one page , an index sheet including the layout of the subd ivision at a scale of 1 :500 or larger be provided . Please let me know if you have further questions about this . Rev iewed by : Jennifer Prochazka Date : November 17 , 2014 ENGINEERING COMMENTS NO. 4 1. Please fix the scale of Inset "A " on final plat sheet. 2. Please add a note regarding requirement for compaction of fill or engineered slab for affected lots that have greater than 2 feet of fill. Also please list the lots that would require th is . 3 . Please indicate min imum habitable finish floor elevat ion for lot 69 on Block 39 . 4 . Provide an updated Engineering cost estimate . 5 . MH 2 .02 & 4 .02 is 10 feet deep and the horizontal clearance w ith the PUE is not adequate . Please prov ide an additional 5 feet PUE around manholes 2.02 , 4 .02 , 7 .02 . (The additiona l PUE is only required for lots that are adjacent to the manholes .) 6 . The additiona l PUE provided for SE-7 Sta 10+00 to Sta 17+00 is not adequate . Please provide additional PUE in such a way that there 's at least a 1: 1 ratio of depth to horizonta l clearance of the sewer line to the PUE boundary . Water Lines 7 . Check the proposed sizes for Inset "A " on sheet C4 .1. 8 . It appears fire hydrants are more than 1000 feet apart . Please add additional fire hydrants or adjust the fire hydrants ' locations . 9 . In li eu of achieving a minimum 4 feet depth on several portions in all your waterlines , we would need to have the sections that do not meet the minimum 4 feet depth change to ductile i ron pipe with cement stabilized sand backfill. See waterlines WA-1 , WA-2 (Sta 12+20 -13+10) and WA-3 (Sta 6+38 -8+20). 10 . SE -3 does not meet TCEQ clearance requ irement with WA-2. 11 . We don 't have equipment to maintain an 8 feet waterline . Please adjust Water line WA-2 to have a maximum depth of 5 feet and cross the sewer lines above. The line may need to be changed to duct ile iron if it doesn 't meet the minimum 4 feet depth requirements. 12 . Please check your water & sewer service lines on plan and profile . They seem to be mislabeled . 13 . There are several deflection that appear to need bends , show the curvature with rad ius and vertical curves and confirm that they meet the maximum deflection per B/CS guidelines . Please use fittings where applicable. Sewer Lines 14 . Grades for sewer serv ice lines don 't correspond with flow line elevations , please revised . Also the flow line elevat ion at the property line seem to be deeper than the maximum 3.5 allowable term inus depth . Please address and fix . 15 . Please fix lot numbering on sheet C5 .3, C5.4 16 . It seems there is no sewer service line for lots 69 & 70 on Block 39 , and lot 4 on Block 62 . C ITY OF C OLLEGE S TAT ION Home o/TexasA&M University • =---IJillll!!!!lldlllilllll!,llllllllllllidlll!liill----~ ..,.._ o;a# MEMORANDUM DATE : November 17 , 2014 TO: Davis Young , Pebble Creek Land Company , via ; davis .y@pebblecreektx .com FROM : Jennifer Prochazka , AICP SUBJECT: PEBBLE CREEK PH 70 (FP) Staff reviewed the above-mentioned final plat as requested. The following page is a list of staff review comments detailing items that need to be addressed. Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zoning Commission meeting : One (1) 24 "x36 " copy of the revised final plat; One (1) 24 "x36 " Revised set of construction documents; Thirteen (13) 11 "x17" copies of the revised final plat ; One (1) Mylar orig inal of the revised final plat (required after P&Z approval); and One (1) copy of the digital file of the final plat on diskette or e-mail to: pdsdigitalsubmittal@cstx.gov. Upon receipt of the required documents for the Planning & Zoning meeting , your project will be considered formally filed with the City of College Station . Please note that this application will expire in 90 days from the date of this memo , if the applicant has not provided written response comments and revised documents to the Administrator that seek to address the staff review comments contained herein . If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meeting . Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting. http://www.cstx .gov/pz Please note that a Mylar original of the revised final plat will be required after P&Z approval and prior to the filing of the plat. If you have any questions or need additional information , please call me at 979 .764 .3570. Attachments : Staff Review Comments PC : Jeff Robertson, McClure & Browne Engineering, via ; jeffr@mcclurebrowne .com P&DS Project No . 14 -00900160 Plan11ing & Development Services P.O. BOX9960 • 1101 TEXAS AVENUE · COLL EGES"I:>\TJO N ·TEXAS · 77842 TEL. 979 .764.3570 •FAX. 979 .764.3496 cstx.gov/devservices DATE : July 14 , 2014 C ITY OF C OLLEGE S TATION Home of Texas A&M University " MEMORANDUM TO: Davis Young , Pebble Creek Land Company , via; davis .y@pebblecreektx .com FROM: Danielle Singh , Transportation Engineer SUBJECT: PEBBLE CREEK PH 70 (FP) ENGINEERING COMMENTS NO. 1 1. Please label the volume and page numbers for all existing easements. See revised plat. 2 . The scale appears to be incorrect. See revised plat. 3. Please clarify in note 8 that privacy fences are not allowed in the floodplain as this would impede flow . See revised plat. 4 . Some bearings have not been labeled near the common area. Please ensure all necessary bearings are included . See revised plat. 5. Please show markers for lot corners or other changes in direction (some are missing around the property boundary). See revised plat. Development Permit Comments : 6 . Please provide a water report , sanitary sewer report and letter acknowledging City Standards . Please include any designs that deviate from the standards (including sewer slopes). 7. Please review the last two notes on sheet C1 .1, it appears that symbols were left of the plans. 8 . On the grading an erosion control plan , please show contours for the entire property . 9 . It appears that some erosion control measures may be needed along the north property line. 10. Please show a construction entrance . 11 . Please provide a street light layout. 12 . Please provide a street sign layout.' 13 . Please show the limits of the floodplain on the construction plan . Please add a note that about no construction activities in the floodplain unless otherwise specified . 14 . Has the post office reviewed the location of the mailbox? 15 . The sidewalk should be shown behind the mailbox turnout , not through it. Please add a public access easement for the new sidewalk location . Curb ramps and detectable warning pavers should be shown at all intersections. Please remove Planning & Development Services P.O. BOX 9960 • 110 1 TEXAS AVENUE · COLLEGE STATION · TEXAS · 77842 TJ:"I ()7() 7(./i '1~7n . J:"AY Q7CJ 7(./J. 'l/J.CJ(. 17 . Why does lot 78 on Quarry Oaks Dr. have 2 sewer service lines? 18 . MH 1.05 does not have a transition drop . Please adjust the slope so that it has at least a 0.1 feet transition drop . 19 . Please check MH2 .02 , the flow line shows a 0 .1 feet drop but the profile seems to show a greater drop . 20. Please correct the label of the waterline conflict on profile for SE-5 . WA-1 is shown instead cl~~-' 21 . The grade changes from .40% to .45% between MH 1.03 & MH 1.04 . Please add a manhole or adjust the grade . 22 . Check the flow lines for MH 7 .03 & MH 7.04 . Storm Sewer Lines I Drainage Report 23 . The outfall for SD-3 needs to be pulled back and in acute angle towards the creek flow . Please confirm that the outfall velocity entering the creek is fairly similar to the Creek 's velocity to minimize turbulence. 24 . Please correct 7.1 's curb inlet stationing . 25. Why were the inlet computations changed from Recessed Inlet on Grade to Recessed Low point Inlet for Inlet# 4.4 & 8.1? These two inlets should 've stayed Recessed Inlet on Grade like your previous Drainage report has shown . 26 . Please provide justification and the assumptions being made for the calculations of the creek 's capacity . 27 . It seems that a different area for the street capacity calculation was used for the 10 year storm event. Please correct the area value used for the calculations , and it also seems that the determined flows on exhibit C-1 exceeds the flow determined for your street capacity . Oversized Participation Requirements 1. Please provide a sealed metes & bound . 2. Please provided an updated Insurance policy , the current one is about to be expired . 3. Please provide filled out Performance Bond . (See attached file) 4. Please provide a water map that corresponds with the provided Fire flow reports . Reviewed by : Danielle Singh I Kevin Ferrer Date : November 17 , 2014 ~""'l!ll!!--~==---------~C:I~T:Y OF COLLEGE STATION Home of Texas A&M University • ------~~ cP MEMORANDUM DATE : October 8, 2014 TO : Davis Young , Pebble Creek Land Company , via ; davis .y@pebblecreektx .com / FROM: Jennifer Prochazka , AICP SUBJECT : PEBBLE CREEK PH 70 (FP) Staff reviewed the above-mentioned final plat as requested . The following page is a list of staff review comments detailing items that need to be addressed . Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zoning Comm ission meeting : One (1) 24"x36 " copy of the revised final plat ; One (1) 24"x36 " grading and erosion control plan; Thirteen (13) 11 "x17" copies of the revised final plat ; One (1) Mylar original of the revised final plat (required after P&Z approval); and One (1) copy of the digital file of the final plat on diskette or e-mail to : pdsdigitalsubmittal@cstx.gov . Upon receipt of the required documents for the Planning & Zoning meeting , your project will be considered formally filed with the City of College Station . Please note that this application will expire in 90 days from the date of this memo , if the applicant has not provided written response comments and revised documents to the Administrator that seek to address the staff review comments conta ined herein . If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meeting. Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting. http://www.cstx .gov/pz Please note that a Mylar original of the revised final plat will be required after P&Z approval and prior to the filing of the plat. If you have any questions or need additional information , please call me at 979.764 .3570 . Attachments : Staff Review Comments PC : Jeff Robertson , McClure & Browne Engineering , via ; jeffr@mcclurebrowne .com / P&DS Project No . 14-00900160 Planning & Development Services P.O. BOX9960 • 1101 TEXAS AVENUE · COLLEGE STATION· TEXAS · 77842 TEL 979 .764.3570 ·.FAX. 979.764.3496 cstx .gov/devservices STAFF REVIEW COMMENTS NO . 1 Project: Pebble Creek Ph 7d (FP) (14-00900160) PLANNING -Repeat Comments 1. Please prov ide an index sheet showing the entire subdivision with matchline and label the matchlines on the other pages . 2 . Please provide the total lot count in the title block . 3. Please label all roads on Inset "A." 4 . The current zoning of the property is GS General Suburban (no longer called R-1 ). 5. The scale does not appear to be 1 "=100 ' as indicated . Please check . 6 . Please provide volume and page of all existing easements on the plat. 7 . Please note that any changes made to the plans , that have not been requested by the City of College Station, must be explained in your next transmittal letter and "bubbled" on your plans . Any additional changes on these plans that the City has not been made aware of will constitute a completely new review. 8. Please note that you may be required to submit paid tax certificates if they are not current prior to the filing of your plat. 9 . Please be aware that each lot will be required to provide a minimum of two (2) trees of at least two inches (2") in caliper or one (1) tree of four inch (4") caliper per Ordinance No. 3222 . Reviewed by : Jennifer Prochazka Date : October 7, 2014 ADDRESSING -Repeat Comment 1. Please change Royal Adelade Drive to Royal Adelade Loop . The street name needs to be continuous. Reviewed by: Robin Krause , Permit Technician Date : 6/24/14 ELECTRICAL COMMENTS REQUIRING IMMEDIATE ATTENTION 1. The follow ing easements will be required : • BLOCK 62 IN BE1WEEN LOTS (21 & 22) (14 & 13) 5' PUE • BLOCK 64 IN BE1WEEN LOTS (16 & 17) 5' PUE • BLOCK 64 IN BE1WEEN LOTS (9 & 10) (19 & 20) 10 ' PUE • BLOCK 43 IN BE1WEEN LOTS (92 & 93) 10' PUE Reviewed by: Eric Horton Date: 7/11/14 ENGINEERING COMMENTS NO. 3 1. The scale shown on plat is not corresponding with the scale specified on the title block. 2 . Please provide a 20 ' PDE along SD-3 on plat. DEVELOPMENT PERMIT COMMENTS 3. Please fix/update the Sheet List Table on the cover sheet. 4. It seems that Quarry Oak Drive 's street plan and profile are not included . 5 . Please provide updated Engineering estimate . 6. Please include the street names on all the sheets . 7. Please clar ify what the circle symbols that are shown by the cul de sac on the grading and erosion control plan . 8. Please provide a street sign detail. 9. Please add a note stating that no construction activities in the floodplain unless otherwise specified . 10. The 6" Curb needs to be changed to a lay-down curb. Please make sure this change will be reflected on your drainage report. 11. Please adjust the intersection grades in such a way that the first 25 feet do not exceed +-2% grade. (Royal Adelade Drive & Pebble Creek Pkwy , Royal Adelade Drive & Quarry Oaks Drive) 12 . Please provide elevation every 25 ' along the eyebrow on Hawks Ridge Drive . 13. Please label the sidewalk on both sides for typical 28 ' pavement section on sheet C2 .5. 14 . Please show propose contour tying with existing tours with lots sloping away from the street. We have concern with the driveway , and drainage issues that may arise. 15 . A slope of 0.6% on Bandon Dunes ct. will result in slopes less than minimum requirements in the gutter around the cul de sac. Please label spot elevations around cul de sac . WATER LINES 16 . Please show Sewer conflict on water conflicts on profiles . 17. On Waterline WA-1 profile by station 7+00 , there 's a donut shape symbol above the waterline. Please label what this is . 18 . Please show Gate valves and Fire Hydrants on profiles. 19. Please make sure to have gate valves at least every 800 feet. See Quarry Oak Dr. 20 . Please provide the curvature for the water lines on the profile and confirm that they meet the maximum deflection per BCS guidelines. Please use fittings where applicable . 21 . Please use appropriate gate valve sizes , Tees , and Anchor Coupling . See insets . 22 . Please label all your water service lines on the plan & profile view. Also make sure that they are corresponding on the plan & profile . See sewer lines also . 23 . Please make sure that all the labels with leaders are point ing at the right item on the profiles . 24 . Crossings are not meeting TCEQ . See WA-1 on SE-2, WA-2 on SE-5 , SE-3 & SE-6 on WA-2 , and laterals. Please note lateral clearance is only a recommendation . 25. Please confirm that lots 95-89 on block 43 is acquiring their water service lines by the 12 " water line through Pebble Creek Parkway and that they are being left between 2' and 3' deep at the point of terminus with a ball valve by the contractor. 26 . Waterline WA-2 's profile is showing SD-1 , but the overall plan shows that SD-1 does not cross WA-2 but WA-1 . Please fix . 27 . Is there a particular reason why the WA-2 has sections that are 8 feet deep? We prefer to keep the maximum depth of a main line to 5 feet if there are no special circumstances that would require a greater depth than 5 feet. 28 . In lieu of achieving a m i nimum 4 feet depth on several portions in all your waterlines , we would need to have the sections that do not meet the minimum 4 feet depth change to ductile iron pipe with cement stabilized sand backfill . 29 . Please provide the stati o ning on waterline WA-2 's plan v iew. 30 . It seems that the water service line for lots 88 & 87 of Block 43 along Quarry Oaks Way is connected at the bend of WA-1. Please move it before or after the bend . Also see water service line for lots 15 & 16 of Block 64 on WA-3 31 . Are lots 11 & 12 of Block 64 having a water service l ine of Quarry Oaks Dr? Please show water service on WA-2 plan and profile . 32 . Is there a particular reason why the water service line for lot 25 of Block 62 is a 1.5" service line instead of 1.0 "? 33 . The water service line for lots 60 and 59 on block 39 can 't be sharing the same service point with the sewer service line . Please relocate the water service line or sewer service line in such a way that they are not using the same property border. 34 . Please fix Water profile title on sheet C4 .6 . It's stating that a 6 " & 8" are being used . 35 . Notes on sheet C4 .6 are not legible . 36. Please show the slopes of all waterl ines on the profiles. See sheet C4 .6 SEWER LINES 37 . Sewer service line SS 5.02 can 't service both lots with a water serv ice line on t hat property lot line . Please relocate the service line to the lot line between 1 & 2 , and have another service line between lot lines 3 & 4 . This also eliminates having a sewer service line on Hawks Ridge Dr. and Quarry Oaks Dr. FYI , we would like to keep the service lines on the frontage of property. 38 . Please fix the north arrows , they seem to be po inting in the wrong direction for sheets C3 .1, C3 .3 , C4.3 , C4.4 , C5 .3 , C5.6 , C5 .7 . It 's confusing when you 're trying to orient yourself with the north arrows . · 39 . Is there a sewer service line for lots 88 & 89 of Block 43 connected to MH 2 .01? Please show service line on plan view . Also see service l ine for lots 16 & 17 of Block 64 connect ing to MH 4 .01 . 40 . Please adjust sewer service lines in such a way that they are perpendicular to the sewer mains . Same goes for water service lines if applicable . 41 . Please fix profiles , there are measurements without correspondence to nearby utility lines . 42 . SS4.05 seems to be m islabeled since its showing Sta 9+99. 43 . Please correct lot numbering on sheet C5 .5 , C5.7 . 44 . There are several sewer service lines that are showing negative grade percentage and 0 percent. Please address these lines to have adequate gravity flow slope . 45. Please make sure tha t all the Manholes have at least a .1 foot drop between the transit ions . 46. Please fix sewer lines to have the minimum slope requirement per B/CS . O r Address this on the letter acknowledg ing city standards with justification. 47 . Please make sure that the Manholes are corresponding Stationing and label on plan and profile view. See Sheet C5 .2. 48 . SE-2 sect ion (Sta 6+00 to Sta 7+00) is having a depth of 10 feet and the horizontal clearance from the line t o the PUE is only 8 feet. Move the section closer towards the sidewalk so that there 's at least 10 feet clearance between the line and PUE. Or provide additional PUE along those lots . 49 . MH 2 .03 needs to be c hanged to a drop manhole since the 4 " is entering the manhole more than 2 feet above t he exiting flow line elevation. Also please move the label since its cut off. 50 . Please show PUE boundaries on sheet C5.4. Please note that if the PUE horizontal clearance to the depth of the sewer line ratio is less than 1: 1. Additional PUE is going to be required or the sewer line has to be shifted to provide adequate clearance . 51. SE-7 is having sections that are 10 feet to 15 feet deep. The line needs to be shifted towards the ROW in such a way that there 's at least a 1: 1 ratio of depth to horizontal clearance to the PUE boundary . If this is not possible we would need to acquire additional PUE so that it meets the ratio . WATER & SEWER REPORT 52 . Please show proposed Fire Hydrants on the Overall Sheet, and water map report. Please make sure that the fire Hydrants are 1000 feet apart and that no structure is more than 500 feet away that is measured along the ROW. 53 . Please check water report, the table shows a junction node 6 which is not shown on the water map. 54. Please show the fire flow demand for each Fire Hydrant, and label them uniquely on the Water map. 55 . Sanitary Sewer Analysis table seems to be using the incorrect min design slope. 56. The Manning friction slope ADF is not corresponding with the slopes provided on the construction documents . 57 . The velocity of the sewer lines shown on the sewer analysis table are below the minimum velocity of 2 .5 fps . Please address this issue. 58 . Please check Sewer analysis spreadsheet , there are several lines that are showing a peak flow depth of 0 . STORM SEWER LINES I DRAINAGE REPORT 59 . Please check your stationing for all your inlets on plan and profile view. 60 . Please correct FL in & FL out on the storm drain & sewer profiles 61 . Please make sure that there 's at least .1 foot drop between the transition of all inlets , junction boxes , and manholes . See Inlets 3 .2 & 3.4 . 62 . Please pull back SD-3 & place outflow in an acute angle towards the flow . Please make sure that the discharge location has adequate armor and that the flow stays within the easement. Also provide a cross section detail of the discharge location . 63 . Please provide pre-development drainage conditions and map. Please show that flows adjacent to existing properties are not increasing . Also show a summary table showing the impact of the proposed drainage compared to the pre-development drainage conditions. 64. Technical Design summary is stating that there 's a SD-2, but the construction documents do not show a SD-2 . Did you mean SD-3? If it is SD-3 , the headwall is not showing a rock rip rap . Please address and fix . See page 14 on appendix D. 65 . Technical Design Summary page 23 is stating a drainage area 15b. There 's no drainage area 15b shown on the drainage map. Please address this issue 66 . Why's a roughness coefficients of .024 for street gutters being assumed? Instead of the roughness of .018 . 67 . Why's the roughness coefficient for RCP and HOPE .014 being assumed? Instead of .013 and .012 respectively . 68 . On pages 24 & 25 in Technical Design Summary, the use of culverts is being shown . Please remove . 69 . Please label Exhibit C-2 's Storm year. 70 . Please provide inlet computation for a 100 year storm . 71. Does Exhibit C-2 take clogging factor into account? Please add a note that clogging factor has been taken into account. 72 . On Exhibit C-2 , Inlets 1.3 and 8 .1 have Q carry over which does not transition to the next inlet. 73. The required street slope on exhibit C-2 does not correspond with the construction documents. 74 . Please use Tc value 10 .0 min for exhibit C-3 & C-4 like it was determined by exhibit C -1. Please note that the maximum velocity for conduits is 15 ft/s. 75 . Please fix the design storm column on exhibit C-4 . 76 . The flow on exhibit C-5 is not corresponding with the flow determined in exhibit C-3 . Please fix this. 77 . Exhibit C-5 & C-6 are showing different pipe slope , d iameter, flow elevation , street slopes compared to the construction documents . 78 . Column SF on exhib it C-5 & C-6 , is this the friction slope? Please check the friction slope some are not corresponding w ith exhibit C-3 & C-4 . 79 . Please use roughness coefficient .018 in your pavement section calculat ions . 80 . The calculated flows in your pavement section exceed the flows determined in C-1. Please address this. Reviewed by : Danielle Singh Date : October 8, 2014 ..... DATE : TO : FROM: SUBJECT: July 11 , 2014 V--4'"'' C ITY OF C m .LEGE S TATION Home o/Texas A&M University " MEMORANDUM •* ep4'.$2 Davis Young , Pebble Creek Land Company , via ; davis.y@pebblecreektx.com Jennifer Prochazka , AICP PEBBLE CREEK PH 70 (FP) Staff reviewed the above-mentioned final plat as requested. The following page is a list of staff review comments detailing items that need to be addressed. Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zoning Commission meeting: One ( 1) 24 "x36 " copy of the revised final plat; One (1) 24"x36" grading and erosion control plan; Thirteen ( 13) 11 "x17 " copies of the revised final plat ; One (1) Mylar original of the revised final plat (required after P&Z approval); and One (1) copy of the digital file of the final plat on diskette or e-mail to : pdsdigitalsubmittal@cstx.gov. Upon receipt of the required documents for the Planning & Zoning meeting, your project will be considered formally filed with the City of College Station. Please note that this application will expire in 90 days from the date of this memo , if the applicant has not provided written response comments and revised documents to the Administrator that seek to address the staff review comments contained herein . If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meeting. Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting . http://www.cstx .gov/pz Please note that a Mylar original of the revised final plat will be required after P&Z approval and prior to the filing of the plat. If you have any questions or need additional information, please call me at 979 .764 .3570. Attachments: Staff Review Comments PC : Jeff Robertson, McClure & Browne Engineering , via; jeffr@mcclurebrowne .com P&DS Project No . 14-00900160 Pla11ni1lg & Development Se?·vices P.O. BOX 9960 • lJOl TEXAS AVENUE · COLLEGE STAT ION· TEXAS · 77842 TEL. 979.764.3570 ·FAX. 979 .764.3496 cstx.gov/devservices STAFF REVIEW COMMENTS NO . 1 Project: Pebble Creek Ph 7d (FP) (14-00900160) PLANN ING 1. Please provide an index sheet showing the entire subdivision with matchline and label the .___.. matchlines on the other pages . "2 . Please provide the total lot count in the title block. 0)_ Please label all roads on Inset "A." 4 . \The current zoning of the property is GS General Suburban (no longer called R-1 ). 5?<' The scale does not appear to be 1"=100 ' as indicated . Please check. 6 . Please provide volume and page of all existing easements on the plat. 7-! Please note that any chan ges made to the plans, that have not been requested by the City of College Station, must be explained in your next transmittal letter and "bubbled" on your plans. Any additional changes on these plans that the City has not been made aware of will constitute a completely new review . 8. Please note that you may be required to submit paid tax certificates if they are not current prior to the filing of your plat. 9. Please be aware that each lot will be required to provide a minimum of two (2) trees of at least two inches (2") in caliper or one (1) tree of four inch (4") caliper per Ordinance No . 3222. Reviewed by : Jennifer Prochazka Date: June 27, 2014 ENGINEERING COMMENTS NO. 1 1. Please label the volu me and page numbers for all existing easements. 2 . The scale appears to be incorrect. 3 . Please clarify in note 8 that privacy fences are not allowed in the floodplain as t h is would impede flow . 4 . Some bearings have not been labeled near the common area. Please ensure all necessary bearings are included. 5 . Please show markers for lot corners or other changes in direction (some are missing around the property boundary). Development Permit Comments: 6 . Please provide a water report, sanitary sewer report and letter acknowledging City Standards . Please include any designs that deviate from the standards (including sewer slopes). 7 . Please review the last two notes on sheet C 1.1, it appears that symbols were left of the plans . 8 . On the grading an erosion control plan, please show contours for the entire property. 9 . It appears that some erosion control measures may be needed along the north property line. 10. Please show a construction entrance . 11. Please provide a street light layout. 12 . Please provide a street sign layout. 13 . Please show the limits of the floodplain on the construction plan . Please add a note that about no construction activities in the floodplain unless otherwise specified . 14 . Has the post office reviewed the location of the mailbox? 15 . The sidewalk should be shown behind the mailbox turnout, not through it. Please add a public access easement for the new sidewalk location. 16. Curb ramps and detectable warning pavers should be shown at all intersections. 17 . Please remove overlapping text and verify labels are shown correctly. There appear to be a lot of misplaced labels. 18 . ls oversized participation being requested with this section? If so , this needs to be included in the next submittal. 19 . Please specify that the curb should be laydown curb. 20. On sheet 2 .5 , the slope should not exceed 2% in the first 25' of the intersection . 21. Please place curb inlets on before the bend in Quarry Oaks Drive . 22. Label the curb radius at all streets intersections . 23 . There are entire street profiles that were not included in these plans . 24 .At T-intersections, please add a curb ramp to cross over the main streets to provide additional access . 25. There does not appear to be a design for the drainage at the end of Brandon Dunes Court . 26. The configuration for SD-3 is not an acceptable design as it will cause additional drainage to already established lots. This storm sewer should outfall to a different location . This could potentially be combined with the Brandon Dunes storm sewer. 27 . Please correct your storm sewer profile on sheet C3.1 . Inlet 1.3 will not drain. 28 . Please show details for pipe SD-1 , rip-rap , end treatments, existing grades, etc. 29 . There does not appear to be a reason for a grate inlet at 2 .1. 30 . There are several locations where junction boxes would be better served as curb inlets . 31 . Please label the roads in all plan views . It is very difficult to review the plans as is . 32. Please label all station numbers there are several places labeled as???. 33 . Please check flow lines labels for storm sewer and sanitary sewer at junction points. 34. Please check your stationing on sheet C3 .3. 35 . Please label all utility crossings in profile views . Check locations of services that have been shown . There are locations where services are shown to cross through proposed lines . 36 . Please complete your water line design before resubmitting (show bending radius , label services in plan view , label all fittings , sanitary crossing with TCEQ requirements , etc.) Also , please review your fire hydrant locations . 37 . On Flint Hills Drive , the waterline should not reduce to a 6 " (for 100') between the two 8" lines . 38 . The waterline along Bandon Dunes Court can be 4". 39. Please label sanitary sewer services in the plan view . 40. Please complete your sanitary sewer profiles before resubmitting . 41. Drainage report is still being reviewed . Comments will be sent via email. Reviewed by: Danielle Singh Date : 7/8/14 ADDRESSING 1. Addresses for this project will be verified and distributed after the final plat has been approved and filed at the Brazos County Courthouse . 2. The proposed street names have been preliminarily approved and will be re-verified prior to filing any plats to ensure no duplicate street names are being created within Brazos County. 3. Please change Royal Adelade Drive to Royal Adelade Loop . The street name needs to be continuous . 4 . Block Ranges: 5200 Bandon Dunes @ 1200 Quarry Oaks Dr 5200 Flint Hills Dr@ 1200 Quarry Oaks Dr 5200 Flint Hills Dr@ 1400 Royal Adelade 5200 Hawks Ridge Dr @ 1200 Quarry Oaks 5200 Hawks Ridge Dr@ 1400 Royal Adelade 1200 Quarry Oaks @ 1400 Royal Adelade 1400 Royal Adelade @ 5100 Pebble Creek Pkwy Reviewed by : Robin Krause , Permit Technician Date : 6/24/14 ELECTRICAL COMMENTS REQUIRING IMMEDIATE ATTENTION 1. SITE PLAN/PLAT: Developer will provide CSU with a digital, AutoCAD dwg format, vers ion of plat and I or site plan as soon as it is available. Email to: ehorton@cstx.gov . 2 . LOAD DATA: The develo per will provide load data to CSU as soon as it is available. This information is critical for CSU to accurately determine the size and number of transformers , and other equipment , required to provide service to the project. Failure to provide load data will result in construction delays and, due to clearance requirements , could affect the final building footprint. Delivery time for transformers and other equipment not in stock is approximate 26 weeks . 3. EASEMENTS: All easements on site are existing . Electric facilities will be designed within existing easements . 4. EASEMENTS: Developer provides descriptive easements for electric infrastructure as designed by CSU , as shown on plat or site plan . 5 . If easements are existing , the developer will be responsible for locating easements on site to insure that elect rical infrastructure is installed within easement boundaries . 6 . The following easements will be required : • BLOCK 62 IN BETWEEN LOTS (21 & 22) (14 & 13) 5' PUE • BLOCK 64 IN BETWEEN LOTS (16 & 17) 5' PUE • BLOCK 64 IN BETWEEN LOTS (9 & 10) (19 & 20) 1 O' PUE • BLOCK 43 IN BETWEEN LOTS (92 & 93) 1 O' PUE GENERAL ELECTRICAL COMMENTS 1. Developer installs conduit per CSU specs and design. 2. CSU will provide drawings for electrical installation . 3. Developer provides 30 ' of rigid or IMC conduit for each riser conduit. CSU installs riser . 4 . Developer will intercept existing conduit at designated transformers or other exist ing devices and extend as required . 5 . If conduit does not exist at designated transformer or other existing devices , developer will furnish and install conduit as shown on CSU electrical layout. 6. Developer pours electric device pads or footings , i.e . transformers , pull boxes, o r other device , per CSU specs and design . 7 . Developer installs pull boxes and secondary pedestals per CSU specs and design , Pull boxes and secondary pedestals provided by CSU. 8. Final site plan must show all proposed electrical facilities necessary to provide electrical service , i.e. transformers , pull boxes , or switchgears, all meter locations , and conduit routing as designed by CSU . 9 . To discuss any of the above electrical comments please contact Eric Horton at 979 .764 .6280 . Reviewed by: Eric Horton Date: 7/11/14 SANITATION 1. Sanitation is ok with this project. Reviewed by: Wally Urrutia Date : June 25 , 2014 C d -~ en! C OLLEGE STAT I ON?~ Home o/Texas A&M University • MEMORANDUM DATE : July 14 , 2014 TO : Davis Young , Pebble Creek Land Company , v ia ; davis.y@pebblecreektx.com / FROM : Danielle Singh , Transportation Engineer SUBJECT: PEBBLE CREEK PH 70 (FP) ENGINEERING COMMENTS NO. 1 1. Please label the volume and page numbers for all existing easements . 2 . The scale appears to be incorrect. 3 . Please clarify in note 8 that privacy fences are not allowed in the floodplain as this would impede flow . 4 . Some bearings have not been labeled near the common area . Please ensure all necessary bearings are included. 5 . Please show markers for lot corners or other changes in direction (some are missing around the property boundary). Development Permit Comments : 6 . Please provide a water report , sanitary sewer report and letter acknowledging City Standards . Please include any designs that deviate from the standards (including sewer slopes). 7 . Please review the last two notes on sheet C1 .1, it appears that symbols were left of the plans . 8 . On the grading an erosion control plan, please show contours for the entire property . 9. It appears that some erosion control measures may be needed along the north property line . 10 . Please show a construction entrance. 11 . Please provide a street light layout. 12 . Please provide a street sign layout.' 13 . Please show the limits of the floodpla in on the construction plan . Please add a note that about no construction activities i n the floodplain unless otherwise specified . 14 . Has the post office reviewed the location of the mailbox? 15 . The sidewalk should be shown behind the mailbox turnout , not through it. Please add a public access easement for the new sidewalk location . Curb ramps and detectable warning pavers should be shown at all intersections . Please remove Planning & Develop ment Services P.O . IJOX 0')6!l • l llll T FX i\S /\VENUE • C O!.l.F.C E STATIO N • 'fTXAS • 77 842 overlapping text and verify labels are shown correctly . There appear to be a lot of misplaced labels . 16 . ls oversized participation being requested with this section? If so , this needs to be included in the next submittal. 17 . Please specify that the curb should be laydown curb. 18 . On sheet 2 .5, the slope should not exceed 2% in the first 25 ' of the intersection . 19 . Please place curb inlets on before the bend in Quarry Oaks Drive . 20 . Label the curb radius at all streets intersections . 21 . There are entire street profiles that were not included in these plans . 22 .At T-intersections , please add a curb ramp to cross over the main streets to provide additional access . 23 . There does not appear to be a design for the drainage at the end of Brandon Dunes Court . 24. The configuration for SD-3 is not an acceptable design as it will cause additional drainage to already established lots. This storm sewer should outfall to a different location . This could potentially be combined with the Brandon Dunes storm sewer. 25 . Please correct your storm sewer profile on sheet C3 .1. Inlet 1.3 will not drain . 26 . Please show details for pipe SD-1 , rip-rap , end treatments, existing grades , etc. 27 . There does not appear to be a reason for a grate inlet at 2 .1. 28 . There are several locations where junction boxes would be better served as curb inlets. 29 . Please label the roads in all plan views. It is very difficult to review the plans as is . 30 . Please label all station numbers there are several places labeled as???. 31 . Please check flow lines labels for storm sewer and sanitary sewer at junction points . 32 . Please check your stationing on sheet C3 .3 . 33 . Please label all utility crossings in profile views . Check locations of services that have been shown . There are locations where services are shown to cross through proposed lines . 34 . Please complete your water line design before resubmitting (show bending radius, label services in plan view , label all fittings, sanitary crossing with TCEQ requirements, etc .) Also , please review your fire hydrant locations . 35 . On Flint Hills Drive , the waterline should not reduce to a 6 " (for 100 ') between the two 8" lines . 36 . The waterl ine along Bandon Dunes Court can be 4 ". 37 . Please label sanitary sewer services in the plan view . 38 . Please complete your sanitary sewer profiles before resubmitting . 39 . Drainage report is still being reviewed . Comments will be sent via email. Reviewed by : Danielle Singh Date : 7/8/14 PC : Jeff Robertson , McClure & Browne Eng ineering , v ia; jeffr@mcclurebrowne.com / P&DS Proj ect No . 14 -00900160 DATE : July 14, 2014 CITY OF COLLEGE STATION Home of Texas A&M University• MEMORANDUM TO : Davis Young , Pebble Creek Land Company, via ; dav is .y@pebblecreektx .com FROM : Jenifer Prochazka , AIC{ SUBJECT: PEBBLE CREEK PH 70 (FP) ENGINEERING COMMENTS NO. 1 1. Please label the volume and page numbers for all existing easements . 2 . The scale appears to be incorrect. 3 . Please clarify in note 8 that privacy fences are not allowed in the floodplain as this would impede flow. 4. Some bearings have not been labeled near the common area . Please ensure all necessary bearings are included . 5. Please show markers for lot corners or other changes in direction (some are missing around the property boundary). Development Permit Comments: 6 . Please provide a water report, sanitary sewer report and letter acknowledging City Standards . Please include any designs that deviate from the standards (including sewer slopes). 7 . Please review the last two notes on sheet C1 .1, it appears that symbols were left of the plans . 8 . On the grading an erosion control plan, please show contours for the entire property . 9. It appears that some erosion control measures may be needed along the north property line . 10 . Please show a construction entrance . 11 . Please provide a street light layout. 12 . Please provide a street sign layout.' 13. Please show the limits of the floodplain on the construction plan . Please add a note that about no construction activities in the floodplain unless otherwise specified . 14 . Has the post office reviewed the location of the mailbox? 15. The sidewalk should be shown behind the mailbox turnout, not through it. Please add a public access easement for the new sidewalk location . Curb ramps and detectable warning pavers should be shown at all intersections . Please remove Planning & Development Services P.O . BOX '1960 • l 101 TFXt\S AVENUE · COLLE c;E ~TATI ON ·TEXAS · 77842 overlapping text and verify labels a re shown correctly. There appear to be a lot of misplaced labels . 16 . ls oversized participation being requested with this section? If so , this needs to be included in the next submittal. 17. Please specify that the curb should be laydown curb. 18 . On sheet 2.5, the slope should not exceed 2% in the first 25 ' of the intersection . 19 . Please place curb inlets on before the bend in Quarry Oaks Drive . 20 . Label the curb radius at all streets intersections. 21. There are entire street profiles that were not included in these plans . 22. At T -intersections , please add a curb ramp to cross over the main streets to provide additional access. 23. There does not appear to be a design for the drainage at the end of Brandon Dunes Court . 24 . The configuration for SD-3 is not an acceptable design as it will cause additiona l drainage to already established lots . This storm sewer should outfall to a different location . This could potentially be combined with the Brandon Dunes storm sewer. 25 . Please correct your storm sewer profile on sheet C3.1 . Inlet 1.3 will not drain . 26 . Please show deta ils for pipe SD -1, rip-rap, end treatments , existing grades , etc. 27 . There does not appear to be a reason for a grate inlet at 2 .1. 28 . There are several locations where junction boxes would be better served as curb inlets . 29 . Please label the roads in all plan views. It is very difficult to review the plans as is . 30 . Please label all station numbers there are several places labeled as???. 31 . Please check flow lines labels for storm sewer and sanitary sewer at junction points . 32. Please check your stationing on sheet C3 .3 . 33 . Please label all utility crossings in profile views. Check locations of services that have been shown . There are locations where services are shown to cross through proposed li nes . 34 . Please complete your water line design before resubmitting (show bending radius, label services in plan view , label all fittings, sanitary crossing with TCEQ requirements , etc .) Also , please review your fire hydrant locations . 35 . On Flint H ills Drive , the waterline should not reduce to a 6" (for 100 ') between the two 8" lines. 36 . The waterline along Bandon Dunes Court can be 4 ". 37. Please label sanitary sewer services in the plan view . 38. Please complete your sanitary sewer profiles before resubmitting . 39 . Drainage report is st ill being reviewed. Comments will be sent via email. Reviewed by: Danielle Singh Date : 7 /8/14 PC : Jeff Robertson , McClure & Browne Engineering , v ia; jeffr@mcclurebrowne .com P&DS Proj ect No . 14 -00900160 MEMORANDUM DATE : June 23 , 2014 TO : Davis Young , Pebble Creek Land Company, via; dav is.y@pebblecreektx .com FROM : Jennifer Prochazka , AICP , Principal Planner SUBJECT: PEBBLE CREEK PH 70 (FP) Thank you for the submittal of your Final Plat -Residential application . Danielle Singh , Transportation Planning Coordinator, and I have been assigned to review this project. It is anticipated that the review will be completed and any staff comments returned to you on or before Monday , July 7 , 2014 . If you have questions in the meantime , please feel free to contact us . PC : Jeff Robertson , McClure & Browne Engineering , via ; jeffr@mcclurebrowne.com P&DS Project No . 14-00900160 Planniug & Development Se1'vices P.O. BOX 9960 • l 10 1 TEXAS AVENUE · COLLEGE STATI ON · TEXAS · 77 842 TEL. 979 764.35 70 ·FAX. 97 9 .764 .3496 csbt .gov/d evs ervic e s Kevin Ferrer From: Sent: To: Subject: Kevin, Jeff Robertson <jeffr@mcclurebrowne.com> Tuesday, December 15, 2015 8:58 AM Kevin Ferrer Revised sidewalk in Pebble Creek I was told by the contractor yesterday that we needed to make an adjustment to the sidewalk alignment on Pebble Creek Pkwy near the inlet at Sta. 20+50 in order to miss a power pole, light pole, and the inlet. I have adjusted the alignment on the sketch below. Please let me know if this is ok. Thanks Jeff Jeffery L. Robertson, P.E. Vice-President Engineering McClure & Browne Engineering/Surveying, Inc. 1008 Woodcreek Drive, Ste . 103 College Station, Tx 77845 PH : (979) 693-3838 FX: (979) 693-2554 jeffr@mcclurebrowne.com 1 C M E TESTING AND ENGINEERING, INC . Subsurface Exploration & Geotechnical Study Proposed Extension of Victoria Ave.; College Station, TX However, it should be noted that soils with PI values lower than 20 may also be encountered in some areas alon g the proposed roadway alignment. Subgrade soi ls with PI values between 7 and 19 that have not been stripped from the subgrade zone shou ld be stabilized with a mixture of Type A hydrated lime or Type C quick lime and Class C fly ash . Similarly, if subgrade soi ls have PI value s of 7 or less, they shou ld be stabilized with either C lass C fly ash or with Portland cement mixture. Specific percentages of the stabi li zing agents for preliminary planning purposes and other recommendations for chemical stabilization of the subgrade soi ls are presented in Section 6 .6 of this report. 5.3 PROJECTED TRAFFIC VOLUMES AND CHARACTERISTICS The traffic volume used in the pavement design analyses for the proposed roadway was based upon the assumptions outlined in Section 1 of this report. The characterization of the vehicles that are believed to comprise the traffic using the proposed roadway was also presented in Section 1. In addition, other traffic information that was required for the design of pavement sections was discussed in Section 1 of this report. The loading for all the different types of veh icl es that may travel over the paved surface of the roadway is typically expressed in terms of a "unit" single axle load. The unit term is known as the equivalent 18 kips single-axle load, or ESALs . ESALs provide a means of expressing traffic loading from numerous types of vehicles with various axle configurations and loadings in terms of unit 18 -kip single- ax le loads . Thus, every vehicle, no matter what the ax le lo ading, can be expressed as a number of 18-kip equivalent single-axle load units . For examp le, passenger cars with single-axle lo ads of 1 kip can have an ESAL of 0.00018 per ax le, whereas a large truck with a single-axle lo ading of 20 kips can have an ESAL of 1.51. The traffic loading for the present project was calculated using the previously discussed traffic conditions, the subgrade strength properties (assuming that the subgrade soi ls will be chemically stabilized), and assumed typical paving material strength properties and reliability factors . The ESALs were computed for a 30-year design period for the rigid pavement system based upon the estimated average daily traffic vo lum e and other traffic characteristics listed in Section 1. 5.4 PAVEMENT SECTION THICKNESS REQUIREMENTS The pavement calculations utilized the previously discussed traffic conditions as expressed by the ESALs, the previously indicated subgrade strength properties (assuming that the subgrade soils will be chemicall y stabilized and compacted to a minimum depth of 8 inches in accordance with the provisions of a subsequent section of this report), and assumed typical paving material strength properties and 20 C M E TESTING AND ENGINEERING, INC . Subsurface Exploration & Geotechnica l Study Proposed Extension of Victoria Ave.; College Station, TX reliability factors . The required total pavement thicknesses that were computed for the rigid pavement system are presented in the following paragraph. The recommended rigid pavement section for the proposed roadway consists of a two-layer system that incorporates a surface course of PCC and a subgrade layer composed of chemically stabilized and compacted soils. The minimum thicknesses for the various layers of the rigid pavement section are presented in the following Table 2 -Pavement Thickness Schedule for Rigid Pavement Section Consisting of Con ve ntionally Reinforced and Jointed PCC . Table 2. Pavement Thickness Schedule for Rigid Pavement Section Consisting of Conventionally Reinforced and Jointed PCC Thickness (i nches) Note 1 Materia l D escrip tion 7.0 Note 2 Reinforced Portland cement concrete surface course Note 3 8.0 Com acted chemicall -stabi lized sub rade soils Note 4 15.0 Tota l co nst ru cte d pavement t hickness Notes : 1. The design section for entrances to adjoining property dri veways and tie-ins to int ersec ting city an d sta te roadways may differ from tho se presented in the table, and should be establi shed based on applicable requirements . 2. The B ryan/College Station Unified Design Guidelines for Stre ets and Alleys (2012) spec ifies a minimum "concrete pavement " thickness of 8 inches and a minimum subgrade treatment of"6-in Lime-Stab" fo r streets classified as collectors. 3. Concrete assumed to have a minimum modulus of rupture (as determined in a third point beam lo a din g test) corresponding to 650 psi {a pproximately equivalent to concrete with a 28-day compressive strength of 4,000 psi). 4 . The requirements for compaction and chemical stabilization of the subgrade soils are presented in Section 6 . The recommended pavement section presented in the tab le represents the minimum required thicknesses for the planned roadway. It should be noted (as indicated in the footnotes to the table) that the Bryan/College Station Unified Design Guidelines for Streets and Alleys (2012) may specify a greater thickness of pavement section for certain street classifications than indicated by the calculated minimum required thicknesses. Similarly, if it is anticipated that the truck traffic will exceed the previously indicated volumes and vehicle weights , then the surface course of the rigid pavement section should be increased to 8 inches as indicated in the previously cited BICS Guidelines. Also note that tie-in sections to existing streets or highways should be made in accordance with applicable city/state design criteria if these section thicknesses are greater than indicated in the table. All of the concrete paving should be reinforced with steel reinforcing bars to minimize temperature and shrinkage cracking, to discourage widening of any cracks that may form, and to aid in transferring loads across joints. We recommend that the PCC paving be reinforced with a minimum of#4 reinforcing steel bars placed at the mid-point of the paving section at spacings corresponding to 12 inches on-center, each way, which is closer than the 18-inch spacing specified in the Bryan/College Station Unified Construction Details for Streets (2012), which is hereinafter cited as BICS Unified Details . 21 CITY or C m.LEGE STATIO r Home ofTcxas A&M Un iversity' FOR OFFIC E USE ONLY CASE NO.: ff2.0/lft.-f/_f¥2!fRCJ DATE SUBMITTED: I MJ I LP_J.I~ TIME : 4 '~~ STAFF : ~----..,...--7~~~~~~- PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. D New Project Subm ittal D Incomp lete Project Submittal -documents needed to complete an application . Case No .: [ZJ Existing Project Submittal. Case No .: Project Name Pebble Creek Phase 70 Contact Name Jeff R obertso n ~~~~~~~~~~~~~~~- Phone Number 979-693-3838 ~~~~~~~~~- We are transmitting the following for Planning & Development Services to review and comment (check all that apply): D Comprehensive Plan Amendment D Rezon in g Applica ti on D Conditional Use Permit D Preliminary Plan D Final Plat D Development Plat D Site Plan D Specia l District S ite Plan D Specia l D istrict Build ing I Sign D Landscape Plan D Non-Residential Architectural Standards D Irrigation Plan D Variance Request D Development Permit D Development Exaction Appeal D FEMA CLOMA/CLOMR /L OMA/LOMR D Grading Plan D Other -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: D Comprehensive Plan Amendment D Waterline Construction Documents D TxDOT Driveway Permit D Sewe rline Construction Documents D TxDOT Utility Perm it [ZJ Street Construction Documents D Drainage Letter or Report D Easement Application D Fire Flow Analys is D Other -Please specify Special Instructions : 10/10 Print Form -__ ... ------ ---~ ~·v ::;/~v\"'je_ / ;~ Kevin Ferrer From: Sent: To: Subject: Kevin, Jeff Robertson <jeffr@mcclurebrowne.com> Friday, December 18, 2015 10:28 AM Kevin Ferrer; Jace McNeill ; Keith Tinker Pebble Creek Pkwy Hopefully this is the last change on the parkway sidewalks. We need to adjust the ramp at Royal Adelade and Pebble Creek Pkwy to avoid the light pole and a power pole. Let me know if this looks ok. Keith Tinker is aware of the change. Jeff Jeffery L. Robertson, P.E. Vice-President Engineering McClure & Browne Engineering/Surveying, Inc. 1008 Woodcreek Drive , Ste. 103 College Station , Tx 77845 PH : (979) 693-3838 FX : (979) 693-2554 jeffr@mcclurebrowne .com CONFIDENTIAL NOTICE: The information contained in this transmission is considered by the sender to be confidential. This material is intended only f, use of the recipient named above . If the reader or other recipient of this material is not the intended recipient named above , please notify me and delete th transmission . Thank you . AGREEMENT FOR ELECTRONIC FILES: is understood and agreed that McClure & Browne Engineering/Surveying , Inc., upon release of these electron files is no longer responsible for their use or modification. The user of the attached electron ic media accepts full responsibility and liability for ar consequences arising out of the use of this electronic data. 1 I BILL TO I City of College Station Accoun t ing Division PO Box 9973 CnY OF CouF.GP. STAT ION Hom,.flixasA&M Univmiry" College Station , TX 77842-9973 (979) 764-3569 Fax : (979) 764-3899 Vendor l nvoiceEntry@cstx.gov V PEBBLE CREEK LAND COMPANY E 5102 STONEWATER LOOP N COLLEGE STATION TX 77845 D 0 R R E M I T PEBBLE CREEK LAND COMPANY 5102 STONEWATER LOOP COLLEGE STATION TX 77845 Purchase Order Fiscal Year 2015 Pag e 1 of Order Date 05/05/2015 Purchase Order# 15200541 -00 . THIS NUMBER MUST APPEAR ON ALL INVOICES, PACKAGES AND SHIPPING PAPERS. S PLANNING & DEVELOPMENT SERVICE H PO Box 9960 I 1101 Texas Ave S P College Station TX 77842 T ~ Vendor Phone Number I Vendor Fax Number I Re guh::ition Number nAliverv Reference I I ~~~-~~~u~=<-~~~ Date Ordered Vendor Number Date Reg .... ui...,re...,d_, ___ .... F .... re"'"'ight Method/Terms DeQartment/Location Plann ing & Development Service 05 /05 /2015 2565 t--lt~e ..... m~#., _______ _.D._.e ... s....,...cri,Qtion/Part No. 1 Pebble Creek Phase 70 Water Line Improvements WTWOC-6581 $49,996.00 Prices, terms, conditions and specifications of Contract No . 15-154 shall apply to this purchase order. Participation Agreement for Pebble Creek Phase 70 Water Line Improvements Contract Manager: Kevin Ferrer ' Qtv UOM 49996 .0 EACH Unit Price $1 .000 B Y ~~~~~~-!=L~is~a~D~a~v~is!.........j'ii?irt-f~~~~~- 8uyer VENDOR COPY Total Ext. Price PO Total E· ·-· -' Price $49 ,996 .00 $49 ,996 .00 $49 996.00 CITY OF COLLEGE STATION PARTICIPATION AGREEMENT FOR PUBLIC IMPROVEMENTS This Agreement is entered into by and between the City of College Station, a Texas Home Rule Municipal Corporation (hereinafter "City"), and Pebble Creek Land Company, a Texas Limited Liability Company (hereinafter "Developer"). WHEREAS, Developer is developing property within the City of College Station, more particularly described as Pebble Creek Phase 7D College Station, Brazos County, Texas (hereinafter "Property") a description of which is attached hereto as Exhibit "A"; and WHEREAS, Developer is required to construct certain public infrastructure, such as roadways , utilities , sidewalks , drainage facilities, water and sewer facilities , etc. that relate to Developer 's proposed development; and WHEREAS, City is required or desirous of assuming some or all responsibility for construction of certain public infrastructure affecting Developer 's development ; and WHEREAS, because of this and in order to comply with City's overall development plan both Developer and City agree that it is in the best interests of the public to jointly construct certain identified public infrastructure; and WHEREAS , the City Engineer has reviewed the data, reports and analysis , including that provided by Developer's engineers, and determined that such public improvement qualifies for joint City-Developer participation; and WHEREAS, both parties agree as to the nature and proportion of joint participation as further recited herein and as may be required in accordance with Chapter 212 , Subchapter C, Developer Participation in Contract for Public Improvement and Chapter 252 , Purchasing and Contracting Authority of Municipalities of the Texas Local Government Code; and NOW, THEREFORE, for and in consideration of the recitations above and the promises and covenants herein expressed, the parties hereby agree as follows: ARTICLE I DEFINITIONS 1.1 Approved Plans means the plans and specifications that meet the requirements of this Participation Agreement, the City of College Station Codes and Ordinances and any other applicable laws and that have been submitted to , reviewed and approved by the City of College Station relating to the Project. 1.2 City or College Station means the City of College Station, a Texas Home Rule Municipal Corporation located at 1101 Texas Avenue , College Station, Texas 77840. Participation Agreement Contract No . 15-154 CRC -April, 1, 201 3 1.3 Developer means Pebble Creek Land Company , a Texas Limited Liability Company , whose principal office is located 5102 Stonewater Drive, College Station, Texas 77845. 1.4 Effective Date. The date on which this Agreement is signed by the last party whose signing makes the Agreement fully executed. 1.5 Final Completion. The term "Final Completion" means that all the work on the Project has been completed , a written guarantee of performance for a one year maintenance period has been provided, all final punch list items have been inspected and satisfactorily completed, all payments to material men and subcontractors have been made, all documentation, and all closeout documents have been executed and approved by the Developer as required, all Letters of Completion and other City documentation have been issued for the Project, all reports have been submitted and reporting requirements have been met, and Developer has fully performed any other requirements contained herein. 1.6 Letter of Completion: A letter issued by the City Engineer stating that the construction of public improvements conforms to the plans , specifications and standards contained in or referred to in the Unified Development Ordinance of the City of College Station. 1. 7 Property means that one certain tract of land Pebble Creek Phase 7D and as further described in Exhibit "A". 1.8 Project means the construction of water line improvements as detailed in Exhibit "B". ARTICLE II CITY COST PARTICIPATION 2.1 Agree to Participate. City agrees to cost participate in the Project in the maximum amount ($49,996) and percentage (13%) as estimated in Exhibit "C". City 's actual rate of participation will be based upon the final actual cost of the Project as reflected by the breakdown of costs required pursuant to this Agreement and will be a percentage not to exceed 13% and in no event shall exceed the maximum amount ($49,996) estimated in Exhibit "C". 2.2 Competitive Bidding. If City's cost participation exceeds 30% of the total cost of the Project or is located within the extraterritorial jurisdiction of the City, then the Project must be competitively bid pursuant to Chapter 252 of the Texas Local Government Code, as amended. a. If City's participation exceeds 30% of the total cost of the Project, City shall be responsible for advertising and obtaining bids or negotiating proposals for the construction of the Project. Developer shall pay for all costs associated with advertising , printing, and distributing plans and specifications for the Project. b. If City's cost participation is 30% or less of the total cost of the Project and the Project is located within the boundaries of the City, competitive bidding is not required . Participation Agreement 2 2.3 Cost of Project. Developer's engineer 's detailed cost estimate of the Project is attached hereto and incorporated herein as Exhibit "C". 2.4 Application for Payment. Application for payment by the Developer to the City for payment to the Developer pursuant to the terms of this Agreement must include the following in a form acceptable to City: a. Final Completion of the Project in accordance with the Approved Plans b. Issuance of all Letters of Completion relating to the Project c. Developer's compliance with all City Codes , Ordinances and standards relating to the Project, the Property and its subdivision and development d. Dedication of the land for the right-of-way or easement either by plat or by deed relating to the Project e. A current title report as of the date of such land dedication and updated within sixty (60) days of the date of this Agreement f. Lien releases or subordinations from all lenders as required by City g. Proof that all guarantees of performance and payment as set forth in this Agreement have been met, including all bond requirements when applicable h. A breakdown of actual costs of the Project with supporting documentation, including all payment receipts 2.5 City Participation Payment. Developer shall submit the written application for City participation payment within thirty (30) days after issuance of all Letters of Completion relating to the Project or Developer shall be ineligible to receive the City participation payment as specified in this Agreement and City's obligation to cost participate shall terminate without any liability. Applications may not be submitted prior to Final Completion. City will pay its participation funds in one payment within thirty (30) days after receipt of a complete written application for participation payment from Developer. 2.6 Reports, books and other records. Developer shall make its books and other records related to the project available for inspection by City. Developer shall submit to City any and all information or reports requested to verify the expenditures submitted for City participation eligibility including , but not limited to bid documents, payment applications, including any supporting information, canceled checks, copies of construction and engineering documents , as determined by the City Engineer in his sole discretion, for the verification of the cost of the Project detailed in Exhibits "B" and "C" of this Agreement. The submission of these reports and information shall be the responsibility of Developer and shall be certified by Developer 's Licensed Professional Engineer at Developer's expense and signed by an authorized official of the entity. Participation Agreement 3 ARTICLE III GOVERNMENTAL IMMUNITY, INDEMNIFICATION, RELEASE AND INSURANCE 3.1 The City by entering into this Agreement, City does not consent to suit; waive its governmental immunity, or the limitations as to damages under the Texas Tort Claims Act. 3.2 Indemnification. Developer agrees to and shall indemnify, hold harmless, and defend City and its officers, agents, volunteers, and employees from and against any and all claims, losses, damages, causes of action, suits, and liability of every kind, including all expenses of litigation, court costs, expert fees and attorney's fees, for injury to or death of any person, or for damage to any property, or for breach of contract, arising out of or in connection with the work done by Developer under this Agreement, regardless of whether such injuries, death, damages or breach are caused in whole or in part by the negligence of City, any other party indemnified hereunder, the Developer, or any third party. 3.3 Release. Developer assumes full responsibility for the work to be performed hereunder, and releases, relinquishes and discharges City, its officers, agents, volunteers and employees, from all claims, demands, and causes of action of every kind and character, including the cost of defense therefore, for any injury to or death of any persons and any loss of or damage to any property that is caused by, alleged to be caused by, arising out of, or in connection with, Developer's work to be performed hereunder. This release shall apply whether or not said claims, demands, and causes of action are covered in whole or in part by insurance and regardless of whether or not said claims, demands, and causes of action were caused in whole or in part by the negligence of City, any other party released hereunder, Developer, or any third party. 3.4 Insurance. The Developer shall procure and maintain, at its sole cost and expense for the duration of this Agreement, insurance against claims for injuries to persons or damages to property that may arise from or in connection with the performance of the work hereunder by Developer or their contractors, agents, representatives, volunteers, or employees. Said insurance shall list College Station, its officers, agents, employees, and volunteers as Additional Insureds. See Exhibit "D" for required limits of liability insurance. Certificates of insurance evidencing the required insurance coverages on the most current form approved by the Texas Department oflnsurance attached hereto as Exhibit "E". ARTICLE IV PROJECT AND CONSTRUCTION 4.1 Right to Inspect the Work. City may inspect the improvements for compliance with the Approved Plans during construction. In the event that it is determined by City that any of the work or materials furnished is not in strict accordance with the Approved Plans , City may withhold funds until the nonconforming work conforms to the Approved Plans or terminate this Agreement at City 's election without any further liability. Participation Agreement 4 4.2 Independent Contractor. Developer shall be solely responsible for selecting, supervising, and paying its subcontractors and for complying with all applicable laws, including, but not limited to all requirements concerning workers compensation and construction retainage. The parties agree all employees, volunteers , personnel and materials furnished or used by Developer in the installation of the specified improvements will be the responsibility of Developer and understand Developer will not be deemed employees or agents of City for any purpose. Nothing in this Agreement will establish a joint venture between the Developer and the City. 4.3 Payment for materials and labor. Developer shall be solely and exclusively responsible for compensating any of its contractors, employees, subcontractors , material men or suppliers of any type or nature whatsoever and insuring that no claims or liens of any type will be filed against any property owned by City arising out of or incidental to the performance of any service performed pursuant to this Agreement. In the event a statutory lien notice is sent to City , Developer shall, where no payment bond covers the work, upon written notice from the City, immediately obtain a bond at its expense and hold City harmless from any losses that may result from the filing or enforcement of any said lien notice. 4.4 Affidavit of bills paid. Prior to the issuance of a Letter of Completion of the improvements , Developer shall provide City a notarized affidavit stating that all bills for labor, materials , and incidentals incurred have been paid in full, that any claims from manufacturers , material men, and subcontractors have been released, and that there are no claims pending of which Developer has been notified. Such affidavit shall be in a form as substantially set forth in Exhibit "F" which is attached hereto and incorporated by reference . 4.5 Requirements of Applicable rules remain. This Agreement does not alter, amend modify or replace any other requirements contained in the Code of Ordinances of the City of College Station, Texas, Unified Development Ordinance of the City of College Station, or other applicable law. ARTICLEV GUARANTEE OF PERFORMANCE AND PAYMENT 5.1 Bonding Requirements of Developer. When City participation is 30% or less of the total value of the Project, Developer will execute the Performance Bond in the form attached in Exhibit "G" to ensure construction of the Project. Developer will ensure its contractor performing the Project executes a payment bond to ensure payment to subcontractors , if any. The Performance Bond must be executed by a corporate surety according to Chapter 2253 of the Texas Government Code. The bonds must be in the total amount of the contract price as approved by City. a. Developer must provide the City a copy of the contractor's payment bond before work commences on the Project. 5.2 Bonding Requirements of City. When City participation is greater than 30% of the total value of the Project or when the Project is located within the extraterritorial jurisdiction of the City, the City will ensure that the prime contractor of the Project executes to the City a performance bond and a payment bond as required by Chapter 2253 of the Texas Government Code. Participation Agreement 5 ARTICLE VI GENERAL PROVISIONS 6.1 Amendments. No amendment to this Agreement will be effective and binding unless and until it is reduced to writing and signed by duly authorized representatives of both parties. 6.2 Choice of Law and Venue. This Agreement has been made under and shall be governed by the laws of the State of Texas. Performance and all matters related thereto shall be in Brazos County , Texas , United States of America. 6.3 Authority to enter into Agreement. Each party represents that it has the full power and authority to enter into and perform this Agreement. The person executing this Agreement on behalf of each party has been properly authorized and empowered to enter into this Agreement. The person executing this Agreement on behalf of Developer represents that he or she is authorized to sign on behalf of Developer and agrees to provide proof of such authorization to the City upon request. 6.4 Agreement read. The parties acknowledge that they have read, understand and intend to be bound by the terms and conditions of this Agreement. 6.5 Notice. Any notice sent under this Agreement (except as otherwise expressly required) shall be hand delivered, written and mailed, or sent by electronic or facsimile transmission confirmed by mailing written confirmation at substantially the same time as such electronic or facsimile transmission , or personally delivered to an officer of the receiving party at the following addresses : Pebble Creek Land Company Davis Young 5102 Stonewater Drive College Station, TX 77845 City of College Station City Engineer P.O. Box 9960 College Station, TX 77842 With copies to: City Attorney and City Manager P.O. Box 9960 College Station, TX 77842 Each party may change its address by written notice in accordance with this section. Any communication addressed and mailed in accordance with this section shall be deemed to be given when so mailed , any notice so sent by electronic or facsimile transmission shall be deemed to be given when receipt of such transmission is acknowledged, and any communication so delivered in person shall be deemed to be given when receipted for by, or actually received by , the party. 6.6 Assignment. This Agreement and the rights and obligations contained herein may not be assigned by Developer without the prior written approval of the City . Participation Agreement 6 6.7 Default. In the event of a breach of this Agreement by Developer, City may terminate this Agreement and ex ercise any and all legal remedie s. 6.8 Exhibits. All exhibits to this Agreement are incorporated and made part of this Agreement for all purposes. List of Exhibits: A. A description of the Property B. A description of the Project C. Engineer 's estimate of the costs of the Project D. Insurance Requirements E. Certificates of Insurance F. Affidavit of All Bills Paid Form G. Performance Bond Form Pebble Creek Land Company BY:~ Printed Name: t) Av' 15 )// l~vlll~ Title : fr e $ 1'j f0..J /-- Date: s / S' /Is r; Participation Agreement CITY OF COLLEGE STATION ~-BYi . CitYMallaief Date: 7f ~ ;;t:J/C- lt:ED . c.~ Assist Date :_~.i.---=L.-'--J- 7 Participation Agreement Exhibit A Description of the Property 8 FIELD NOTES Being all that certain tract or parcel ofland lying and being situated in the S.W. ROBERTSON SURVEY, Abstract No. 202 in College Station, Brazos County, Texas and being part of the 76 .927 acre Tract 2-B described in the deed from Pebble Creek Development Company to Pebble Creek Land Company recorded in Volume 11447, Page 250 of the Official Records of Brazos County, Texas (O.RB.C .) and part of the called 27.29 acre tract described in the deed from W . D. Fitch and Young Brothers, Inc., Contractors to the City of College Station recorded in Volume 1029, Page 13 (O.RB.C.) and being more particularly described by metes and bounds as follows : BEGINNING: at a found 1/2-inch iron rod marking the common most southerly comer of Lots 9 and 10, Block 43, PEBBLE CREEK PHASE 7-A Subdivision as recorded in Volume 3591, Page 235 (O.R.B .C .), said iron rod also being in the northeast line of the called 27.29 acre City of College Station tract; TIIBNCE: along the southeasterly lines of said PEBBLE CREEK PHASE 7-A Subdivision for the following eleven (11) calls: 1) N 41° 51' 36" E for a distance of 49.10 feet to a found 1/2-inch iron rod for comer, 2) N 27° 57' 44" E for a distance of 123.33 feet to a found 112-inch iron rod for comer, 3) N 62 ° 14' 00" E for a distance of98.48 feet to a found 1/2-inch iron rod for corner, 4) N 50° 25' 31" E for a distance of 150.44 feet to a found 1/2-inch iron rod for comer, 5) N 58° 38' 40" E for a distance of 93 .29 feet to a found 112-inch iron rod for comer, 6) N 70° 17' 00" E for a distance of 64.82 feet to a found 1/2-inch iron rod for corner, 7) N 67° 39' 20" E for a distance of 186.18 feet to a found 1/2-inch iron rod for comer, 8) N 68 ° 32' 58" E for a distance of291.60 feet to a found 1/2-inch iron rod for corner, 9) N 72° 32' 39" E for a distance of201.84 feet to a found 112-inch iron rod for corner, lO)N 62° 49' 37" E for a distance of 105.22 feet to a found 1/2-inch iron rod for corner, and ll)N 35° 32' 18" E for a distance of21.93 feet to a found 1/2 -inch iron rod marking the west comer of Lot 75, Block 43, PEBBLE CREEK PHASE 7-C Subdivision as recorded in Volume 12131, Page 110 (O.R.B.C.); THENCE: along the northeasterly lines of said PEBBLE CREEK PHASE 7-C Subdivision, same being through the interior of the said 76.927 acre Pebble Creek Land Company tract for the following eight (8) calls: 1) S 35° 31' 31" E for a distance of220.78 feet to a found 1/2-inch iron rod for corner, 2) S 42° 45' 01" E for a distance of309.43 feet to a found 1/2-inch iron rod for comer, 3) S 49° 43' 20" E for a distance of 114.84 feet to a found 1/2-inch iron rod for comer, 4) 449.42 feet in a clockwise direction along the arc of a curve having a central angle of 28° 27' 10 ", a radius of 905.00 feet, a tangent of 229.44 feet and a long chord bearing N 49° 44' 10" E at a distance of 444.81 feet to a found 1/2-inch iron rod for comer; 5) S 39° 34' 55" E for a distance of 116.56 feet to a found 3/4-inch iron pipe marking the Point of Curvature of a curve to the right, 6) 41.12 feet along the arc of said curve having a central angle 94° 14' 26", a radius of 25.00 feet, a tangent of 26.92 feet and a long chord bearing S 07° 32' 17" W at a distance of 36.64 feet to a found 3/4-inch iron pipe for comer, 7) S 30° 37' 24" E for a distance of 60.20 feet to a found 112-inch iron rod for comer, and 8) S 45 ° 00' 57'' E for a distance of267.20 feet to a found 1/2-inch iron rod marking the south comer of Lot 58, Block 39 of said PEBBLE CREEK PHASE 7-C, said iron rod also being in the east line of the said 76.927 acre tract and the west line of the called 1265.370 acre City of College Station Lick Creek Park tract recorded in Volume 488, Page 756 of the Brazos County Deed Records (B.C.D.R), THENCE: along the common line of the said 76.927 acre tract and the said west line of the City of College Station Lick Creek Park tract for the following three (3) calls : 1) S 44° 58' 54" W for a distance of718.91 feet to a found 1/2-inch iron rod for comer, 2) S 27° 48' 54" W for a distance of 536 .67 feet to a found 112-inch iron rod for corner, and 3) S 86 ° 48' 54" W for a distance of 711.81 feet to a found 112-inch iron rod marking the southwest comer of the said 76 .927 acre Pebble Creek Land Company tract and the upper southeast comer of the beforesaid 27.29 acre City of College Station tract (1029/13); TIIBNCE: N 39 ° 34' 55" W along the common line of the said 76.927 acre and 27 .2 9 acre tracts for a distance of302.62 feet to a 112-inch iron rod set for comer; THENCE: S 50° 25' 05" W through the said 27.29 acre City of College Station tract for a di stance of 166.10 feet to a found 1/2-incb iron rod marking the north corner of Lot 67, Block 46, PEBBLE CREEK PHASE 9-D Subdivision as recorded in Volume 7655, Page 245 (O.R.B.C.), the northeast corner of St. Andrews Drive (based on a 60-foot width) and being in the southwest line of the said 27.29 acre tract; TIIENCE: N 39° 35' 04" W along the before-mentioned southwest line, said line being common with the northeast line of PEBBLE CREEK PHASE 9-D Subdivision, the northeast line of PEBBLE CREEK PHASE 9-E Subdivision as recorded in Volume 7311, Page 267 (O .R .B .C.) and the northeast line of PEBBLE CREEK PHASE 9-C Subdivision according to the Amending Plat recorded in Volume 11176, Page 190 (0.R.B.C.) for a distance of 2003.85 feet to a found 112-inch iron rod marking the north corner of said PEBBLE CREEK PHASE 9-C Subdivision, said iron rod also being in the southeast line of PEBBLE CREEK PHASE 4-B Subdivision as recorded in Volume 2324, Page 199 (O .R.B.C.); THENCE: N 50° 19' 50" E along the said southeast line of PEBBLE CREEK PHASE 4-B for a distance of 166.18 feet to a found 1/2-inch iron rod marking the west comer of Lot l, Block 43 of said PEBBLE CREEK PHASE 7-A Subdivision, said iron rod also being in the before-mentioned northeast line of the 27.29 acre City of College Station tract (1029/13); TIIENCE: S 39° 34' 55" E along the southwest line of said PHASE 7-A and the northeast line of the said 27.29 acre tract for a distance of 1110.76 feet to the POINT OF BEGINNING and containing 55 .025 acres of land, more or less, according to a survey made on the ground under the supervision of Kevin R. McClure, Registered Professional Land Surveyor, State of Texas, No. 5650, in January, 2015 . Exhibit B Description of the Project Pebble Creek 7D is part of the Pebble Creek Subdivision which is located east of William D . Fitch Parkway & north of State Highway 6 . The Oversize Participation request is for an upsize from an 8-inch water line to a 12-inch water line that is running along Royal Adelade Loop which ultimately ties into the future 12-inch line along future Pebble Creek Parkway. Zen m- :11 C) mz Participation Agreement 9 Exhibit C Engineer's estimate of the costs of the Project Participation Agreement 10 Item# I l 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 21 22 22 23 22 23 24 25 26 27 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PARKWAY MBESI PROJ #: 1065-0019 OVERSIZE PARTICIPATION ESTIMATE March 30, 2015 Description I Unit Quantity Unit Price 12" w t s t c t ti a er •YS em ons rue on 12" PVC C900 Cl 200 Water Linc, Str. Backfill L.F. 1 868 43.35 12" PVC C900 Cl 200 Water Line Non-Str. Backfill L .F . 1 931 38 .00 8" PVC C900 Cl 200 Water Line Str. Backfill L .F . 2 651 35 .00 8" PVC, C900 Cl 200 Water Line Non-Str. Backfill L.F. 168 27 .00 6" PVC C900 Cl 200 Water Line, Str. Backfill L.F. 738 24 .00 4" PVC C900 Cl 200 Water Line Str. Backfill L.F. 312 18.00 Fire Hydrant Assembly EACH 6 3,500 .00 12"xl2" M .J. Tee EACH 1 700 .00 12"x8" MJ. Tee EACH 2 675.00 8"x8" M.J. Tee EACH 1 475.00 8"x6" M .J. Tee EACH 3 400.00 8"x4" M .J. Tee EACH 1 350 .00 12" Gate Valve EACH 5 2,200.00 12"x8" Reducer EACH 1 500 .00 8" M.J. Gate Valve EACH 8 1,250 .00 6" M.J. Gate Valve EACH 3 950.00 12"xl3" M.J. Anchor Couoling EACH 6 250.00 8"xl3" M .J. Anchor Coupling EACH 9 250.00 6"xl3" M .J. Anchor Coupling EACH 8 250.00 12"x45 deg. Bend EACH 2 250 .00 8"x22 .5 del!. Bend EACH 2 250.00 8"xll .25 deg. Bend EACH 1 250.00 6"x45 deg. Bend EACH 1 250.00 6"x22 .5 del!. Bend EACH 1 250.00 6"xll .25 deg. Bend EACH 1 250.00 2" Blow Off Valve Assembly EACH 1 1,100.00 Connect to Existing Waterline EACH 3 1,100 .00 Water Service l" Type K Coooer Short Side (<20') EACH 1 800 .00 Water Service 1.5" Tvoe K Coouer Short Side (<20') EACH 17 950.00 Water Service 1" Type K Cooner Short Side (>20') EACH I 1.250.00 Water Service 1.5" Type K Cooner Short Side (>20') EACH 20 1,450.00 12" Water System Subtotal 1 of2 Total 80,978 73 378 92 ,785 4 536 17 ,712 5,616 21000 700 1,350 475 1200 350 11 000 500 10,000 2 850 1500 2,250 2 000 500 500 250 250 250 250 1,100 3,300 800 16,150 1,250 29,000 $383,780 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PARKWAY MBESI PROJ #: 1065-0019 OVERSIZE PARTICIPATION ESTIMATE March 30, 2015 Item# I Description I Unit Quantity Unit Price 8" w s t c ater iVS em onstruction 1 12" PVC C900 Cl 200 Water Line. Str. Backfill L.F . 0 43 .35 2 12" PVC C900 Cl 200 Water Line, Non-Str. Backfill L .F . 0 38 .00 3 8" PVC. C900 Cl 200 Water Line. Str. Backfill L .F . 4 519 35 .00 4 8" PVC C900 Cl 200 Water Line. Non-Str . Backfill L .F . 2 099 27.00 5 6° PVC C900 Cl 200 Water Line, Str. Backfill L .F . 738 24 .00 6 4" PVC C900 Cl 200 Water Line Str . Backfill L .F. 313 18 .00 7 Fire Hydrant Assembly EACH 5 3 500.00 8 12"x12" M.J . Tee EACH 0 700.00 9 12"x8" M.J. Tee EACH 0 675 .00 10 8"x8" M.J . Tee EACH 6 475.00 11 8"x6" M.J. Tee EACH 3 400.00 12 8"x4" M.J. Tee EACH 1 350 .00 13 12" Gate Valve EACH 0 2,200 .00 14 12"x8" Reducer EACH 0 500 .00 15 8" M.J. Gate Valve EACH 13 1250.00 16 6" M.J. Gate Valve EACH 3 950 .00 17 l2"xl3" M.J. Anchor Coupling EACH 0 250 .00 18 8"xl3" M.J. Anchor Coupling EACH 15 250 .00 19 6"xl3" M .J. Anchor Coupling EACH 8 250 .00 20 12"x45 deg. Bend EACH 0 250 .00 21 8"x22.5 deg. Bend EACH 4 250 .00 22 8 "xll.25 deg. Bend EACH 1 250 .00 23 6"x45 deg. Bend EACH 1 250 .00 23 6"x22.5 deg . Bend EACH 1 250 .00 24 6"xll .25 deg. Bend EACH 1 250.00 23 2" Blow Off Valve Assembly EACH 1 1.100 .00 24 Connect to Existing Waterline EACH 3 1,100 .00 25 Water Service. I" Type K Copper Short Side ( <20') EACH 1 800 .00 26 Water Service, 1.5" Tvne K Conner Short Side (<20') EACH 17 950 .00 27 Water Service, l" Type K Copper Short Side (>20 ') EACH 1 1,250 .00 28 Water Service. 1.5" Tvoe K Conner Short Side (>20') EACH 20 1,450 .00 8" Water System Subtotal TOTAL CONSTRUCTION C O ST BONDING COSTS TOTAL OP REQUEST The above construction estimate is based on the engineer's preliminary opinion of probable construction costs. This estimate constitutes our best judgment at this time . Please note that the engineer does not have any control over contractor or supplier Jeffery 2 of2 Total 0 0 158.165 56,673 17,712 5 634 17 500 0 0 2 850 1,200 350 0 0 16 250 2 850 0 3 750 2,000 0 1000 250 250 250 250 1,100 3 300 800 16150 1,250 29 000 $338,534 $45,246 $4,750 $49,996 Exhibit D Insurance Requirements Throughout the term of this Agreement, Developer (Contractor) must comply with the following: I. Standard Insurance Policies Required: A. Commercial General Liability B. Business Automobile Liability C. Workers' Compensation II. General Requirements Applicable to All Policies: A. Certificates of Insurance shall be prepared and executed by the insurance company or its authorized agent B. Certificates of Insurance and endorsements shall be furnished on the most current State of Texas Department of Insurance-approved forms to the City's Representative at the time of execution ohhis Agreement; shall be attached to this Agreement as Exhibit "E"; and shall be approved by the City before work begins C. Contractor shall be responsible for all deductibles on any policies obtained in compliance with this Agreement. Deductibles shall be listed on the Certificate of Insurance and are acceptable on a per-occurrence basis only D. The City will accept only Insurance Carriers licensed and authorized to do business in the State of Texas E. The City will not accept "claims made" policies F. Coverage shall not be suspended, canceled, non-renewed or reduced in limits of liability before thirty (30) days written notice has been given to the City III. Commercial General Liability A. General Liability insurance shall be written by a carrier rated "A:VIII" or better under the current A. M. Best Key Rating Guide . B. Policies shall contain an endorsement naming the City as Additional Insured and further providing "primary and non-contributory" language with regard to self- insurance or any insurance the City may have or obtain C. Limits of liability must be equal to or greater than $500 ,000 per occurrence for bodily injury and property damage, with an annual aggregate limit of $1 ,000 ,000.00. Limits shall be endorsed to be per project. D. No coverage shall be excluded from the standard policy without notification of individual exclusions being submitted for the City's review and acceptance E. The coverage shall include, but not be limited to the following: premises/operations with separate aggregate; independent contracts; products/completed operations ; contractual liability (insuring the indemnity provided herein) Host Liquor Liability, and Personal & Advertising Liability. IV. Business Automobile Liability Participation Agreement 11 A. Business Automobile Liability insurance shall be written by a carrier rated "A: VIII" or better rating under the current A. M. Best Key Rating Guide. B. Policies shall contain an endorsement naming the City as Additional Insured and further providing "primary and non-contributory" language with regard to self- insurance or any insurance the City may have or obtain C. Combined Single Limit of Liability not less than $1,000,000 per occurrence for bodily injury and property damage. D. The Business Auto Policy must show Symbol 1 in the Covered Autos Portion of the liability section in Item 2 of the declarations page E. The coverage shall include any autos, owned autos, leased or rented autos, non- owned autos, and hired autos. V. Workers' Compensation Insurance A. Pursuant to the requirements set forth in Title 28, Section 110.110 of the Texas Administrative Code, all employees of the Contractor, all employees of any and all subcontractors, and all other persons providing services on the Project must be covered by a Workers' Compensation policy, either directly through their employer's policy (the Contractor's or subcontractor's policy) or through an executed coverage agreement on an approved Texas Department of Insurance Division of Workers Compensation (DWC) form. Accordingly, if a subcontractor does not have his or her own policy and a coverage agreement is used, contractors and subcontractors must use that portion of the form whereby the hiring contractor agrees to provide coverage to the Subcontractors' employees. The portion of the form that would otherwise allow them not to provide coverage for the employees of an independent contractor may not be used. B. Workers compensation insurance shall include the following terms: 1. Employer's Liability minimum limits of liability not less than $500,000 for each accident/each disease/each employee are required 2. "Texas Waiver of Our Right to Recover From Others Endorsement, WC 42 03 04" shall be included in this policy 3. TEXAS must appear in Item 3A of the Workers' Compensation coverage or Item 3C must contain the following: "All States except those listed in Item 3A and the States ofNV, ND, OH, WA, WV, and WY" C. Pursuant to the explicit terms of Title 28, Section 110.llO(c) (7) of the Texas Administrative Code, the bid specifications, this Agreement, and all subcontracts on this Project must include the following terms and conditions in the following language, without any additional words or changes, except those required to accommodate the specific document in which they are contained or to impose stricter standards of documentation: Participation Agreement 12 "A. Definitions : Certificate of coverage ("certificate '') -An original certificate of insurance, a certificate of authority to self-insure issued by the Division of Workers Compensation , or a coverage agreement (DWC -81 , DWC-83, or DWC-84), showing statutory workers' compensation insurance coverage for the person's or entity's employees providing services on a project, for the duration of the project. Duration of the project -includes the time from the beginning of the work on the project until the Contractor's/person 's work on the project has been completed and accepted by the governmental entity. Persons providing services on the project ("subcontractors" in§ 406.096 [of the Texas Labor Code]) -includes all persons or entities performing all or part of the services the Contractor has undertaken to perform on the project, regardless of whether that person contracted directly with the Contractor and regardless of whether that person has employees. This includes, without limitation, independent Contractors, subcontractors, leasing companies, motor carriers, owner-operators, employees of any such entity, or employees of any entity which furnishes persons to provide services on the project. "Services" include, without limitation, providing, hauling, or delivering equipment or materials, or providing labor, transportation, or other service related to a project. "Services " does not include activities unrelated to the project, such as food/beverage vendors, office supply deliveries, and delivery of portable toilets. B. The Contractor shall provide coverage, based on proper reporting of classification codes and payroll amounts and filing of any coverage agreements, that meets the statutory requirements of Texas Labor Code, Section 401 . 011 (44) for all employees of the Contractor providing services on the project, for the duration of the project. C. The Contractor must provide a certificate of coverage to the governmental entity prior to being awarded the contract. D. If the coverage period shown on the Contractor's current certificate of coverage ends during the duration of the project, the Contractor must, prior to the end of the coverage period, file a new certificate of coverage with the governmental entity showing that coverage has been extended. E. The Contractor shall obtain from each person providing services on a project, and provide to the governmental entity: (1) Particip ation Agreement a certificate of coverage, prior to that person beginning work on the project, so the governmental entity will have on file certificates 13 of coverage showing coverage for all persons providing services on the project; and (2) no later than seven calendar days after receipt by the Contractor, a new certificate of coverage showing extension of coverage, if the coverage period shown on the current certificate of coverage ends during the duration of the project. F. The Contractor shall retain all required certificates of coverage for the duration of the project and for one year thereafter. G. The Contractor shall notify the governmental entity in writing by certified mail or personal delivery, within 10 calendar days after the Contractor knew or should have known, or any change that materially affects the provision of coverage of any person providing services on the project. H The Contractor shall post on each project site a notice, in the text, form and manner prescribed by the Division of Workers Compensation, informing all persons providing services on the project that they are required to be covered, and stating how a person may verify coverage and report lack of coverage. I The Contractor shall contractually require each person with whom it contracts to provide services on a project, to: Participation Agreement (1) provide coverage, based on proper reporting of classification codes and payroll amounts and filing of any coverage agreements, that meets the statutory requirements of Texas Labor Code, Section 401. 011 (44) for all of its employees providing services on the project, for the duration of the project; (2) provide to the Contractor, prior to that person beginning work on the project, a certificate of coverage showing that coverage is being provided for all employees of the person providing services on the project, for the duration of the project; (3) provide the Contractor, prior to the end of the coverage period, a new certificate of coverage showing extension of coverage, if the coverage period shown on the current certificate of coverage ends during the duration of the project; (4) obtain from each other person with whom it contracts, and provide to the Contractor: (a) A certificate of coverage, prior to the other person beginning work on the project; and 14 (b) A new certificate of coverage showing extension of coverage , prior to the end of the coverage period, if the coverage period shown on the current certificate of coverage ends during the duration of the project; (5) retain all required certificates of coverage on file for the duration of the project and for one year thereafter; (6) notify the governmental entity in writing by certified mail or personal delivery, within 10 calendar days after the person knew or should have known, of any change that materially affects the provision of coverage of any person providing services on the project; and (7) Contractually require each person with whom it contracts to perform as required by paragraphs (a) -(g), with the certificates of coverage to be provided to the person for whom they are providing services. J. By signing this contract, or providing, or causing to be provided a certificate of coverage, the Contractor is representing to the governmental entity that all employees of the Contractor who will provide services on the project will be covered by workers' compensation coverage for the duration of the project; that the coverage will be based on proper reporting of classification codes and payroll amounts; and that all coverage agreements will be filed with the appropriate insurance carrier or, in the case of a self-insured, with the Commission's Division of Self-Insurance Regulation. Providing false or misleading information may subject the Contractor to administrative penalties, criminal penalties, civil penal- ties, or other civil actions. K The Contractor's failure to comply with any of these provisions is a breach of contract by the Contractor that entitles the governmental entity to declare the contract void if the Contractor does not remedy the breach within ten calendar days after receipt of notice of breach.from the governmental entity." Participation Agreement 15 Participation Agreement ExhibitE Certificates of Insurance 16 CERTIFICATE OF LIABILITY INSURANCE DATE (MM/DDIYYYY) 2/11/2015 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S}, AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the pollcy(ies) must be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). PRODUCER Bailey Insurance & Risk Management 1201 Washington Ave. Ftif; No : (254)753-1132 P.O. Box 298 Waco TX 76701 INSURED Pebble Creek Land Company PO Box 10660 College Station TX 77842 INSURERD: INSURERE: INSURERF: COVERAGES CERTIFICATE NUMBER:2015 Master NAIC# 9203 2945 REVISION NUMBER: THIS IS TO CERTIF Y THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED . NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN , THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES . LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. INSR TYPE OF INSURANCE LTR lo•>CD UMn POLICY NUMBER l~~lf,g~l ,~g}-6%~1 LIMITS GENERAL LIABILITY EACH OCCURRENCE $ 1,000,000 -x COMMERCIAL GENERAL LIABILITY ~~~~~~~ YE:~~ncel $ 100,000 -~ CLAJMS.M AD E 00 OCCUR '.1./7/2015 A .... su0055067 '.1./7/2016 MED EXP (Any one person) $ 5,000 PERSONAL & ADV INJURY -$ 1,000,000 GENERALAGGREGATE -$ 2,000,000 GEN'L AGGREGATE LIMIT APPLIES PER : PRODUCTS ·COMP/OP AGG $ 2,000,000 lxl POLI CY n ~~RT n LOC $ AUTOMOBILE LIABILITY COMBINED SINGLE LIMIT s 1 000,000 iEa accident\ f- B x ANY AUTO BODIL y INJUR Y (Per perso n) $ f-ALL OWNED -SCHEDU LED Kll350556-l 2/7/2015 2/7/2016 x BODILY INJURY (Per accident) $ f-AUTOS -AUTOS NON-OWNED PROPERTY DAMAGE $ HIRED AUTOS AUTOS IPer accidentl f--Pol icv Fee $ UMBRELLA LIAB HOCCUR EACH OCCURRENCE $ - EXCESS LIAB CLAIMS -MADE AGGREGATE $ OED I I RETENTION $ $ c WORKERS COMPENSATION x 1T~4'nJr¥;;1 IOJ~- AND EMPLOYERS' LIABILITY YIN ANY PROPR IETO R/PARTNER/EXECUTIVE D E.L. EACH ACC IDENT $ 1 000,000 OFF ICER/MEM BER EXC LUDED? NIA 12/12/2014 12/12/2015 (Mandatory In NH) ISBP0001262129 E.L. DISEASE • EA EMPLOYEE $ 1 000,000 ~~s~~~-IT~ ~°iJ PERATIONS be low E.L. DISEASE · POLICY LIMIT $ 1 000.000 DESCRIPTION OF OPERATIONS I LOCATIONS I VEHICLES (Attach ACORD 101, Additional Remarl<s Schedule, If more space Is required) The Certificate Holder is included as an Additional Insured on the General Liability and Auto Liability Policies if required by written contract between the Named Insured and the Certificate Holder. Waiver of Subrogation shall be granted to the Certificate Holder under the referenced General Liability, Automobile Liability, and Workers Compensation Policies if required by written contract. Coverage for the Additional Insured under the General Liability and Automobile Liability Policies shall be provided on a Primary & Non-Contributory basis if required by written contract . The General Liability Policy, the Automobile Liability Policy, and the Workers Compensation Policy include an endorsement providing that 30 CERTIFICATE HOLDER City of College Station P. O. Box 9960 College Station, TX 77842 CA NC ELLA TION SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS. AUTHORIZED REPRESENTATIVE Wes Bailey/ALISHA © 1988-2010 ACORD CORPORATION. All rights reserved. ACORD 25 (2010/05) INS025 t?n11Y1.~1 n1 Tho Ar.n~n n!llmo :::anrl lnnn :::aro ronic.to.rorl m:::arlcc: nf Ar.nAn COMMENTS/REMARKS days Notice of Cancellat ion wil l be f u rnished to the Certificate Holder (with the exception of cancellation for non-payment of premiu m) . OFREMARK COPYRIGHT 2000, AMS SERVICES INC. Exhibit F Affidavit of All Bills Paid Form Participation Agreement 17 THE STATE OF TEXAS § § COUNTY OF BRAZOS § AFFIDAVIT OF BILLS PAID FOR PARTICIPATION AGREEMENT Before me , the undersigned authority , _____________ ("Affiant"); (Title), of ("Developer"), personally appeared being duly sworn, deposed, and states the following: I am over 18 years of age , of sound mind , capable of making this affidavit , and personally acquainted with the facts stated in it, which facts are true and correct. The Developer pursuant to the Participation Agreement with the City of College Station, dated _____ , 20_, has caused the Developer or the Developer's contractors to furnishes labor and materials to construct improvements for the ___________ (description of project) on the real property known as , (address or legal description) more particularly described in the Participation Agreement as the "Project". To the extent Developer constructed or contracted for the construction of such improvements, the Developer or the Developer 's contractors have paid each of its sub-contractors, laborers and material men in full for all labor or materials provided to Developer on the Project. To the best of Affiant's knowledge , Developer or Developer's contractors have not received notice of any claims pending against the Project in connection with the Project. Executed this ____ day of __________ , 20_ AFFIANT: Signature: ______________ _ Printed Name: ------------- SUBSCRIBED AND SWORN TO before me on this __ day of _____ ., 20_. Notary Public, State of Texas Participation Agree ment 18 Participation Agreement Exhibit G Performance Bond 19 461241P PERFORMANCE BOND FOR PARTICIPATION AGREEMENT THE STATE OF TEXAS THE COUNTY OF BRAZOS § § § KNOW ALL MEN BY THESE PRESENTS: THAT WE, Pebble Creek Land Company, as Principal, hereinafter called "Developer'' and the other subscriber hereto Developers Surety and Indemnity Company, as Surety, do hereby acknowledge ourselves to be held and firmly bound to the City of College Station, a municipal corporation, in the sum of Three Hundred Ninety Thousand, Seven Hundred Twenty-Four Dollars and 00/100 Cents ($390.724.00) for the payment of which sum , well and truly to be made to the City of College Station and its successors, the said Developer and Surety do bind themselves, their heirs, executors, administrators, successors, and assigns, jointly and severally. THE CONDITIONS OF THIS OBLIGATION ARE SUCH THAT: WHEREAS, the Developer has on or about this day executed a Participation Agreement herein after called "Contract" in writing with the City of College Station for Pebble Creek Phase 7D MBESI PROJ #: 1065-0019 Water System all of such work to be done as set out in full in said Contract Documents therein referred to and adopted by the City Council, all of which are made a part of this instrument as fully and completely as if set out in full herein . NOW THEREFORE, if the said Developer shall faithfully and strictly perform Contract in all its terms , provisions, and stipulations in accordance with its true meaning and effect, and in accordance with the Contract Documents referred to therein and shall comply strictly with each and every provision of the Contract, including all warranties and indemnities therein and with this bond, then this obligation shall become null and void and shall have no further force and effect; otherwise the same is to remain in full force and effect. It is further understood and agreed that the Surety does hereby relieve the City of College Station or its representatives from the exercise of any diligence whatever in securing compliance on the part of the Developer with the terms of the Contract, including the making of payments thereunder and, having fully considered it's Principal 's competence to perform the Contract in the underwriting of this Performance Bond, the Surety hereby waives any notice to it of any default, or delay by the Developer in the performance of his Contract and agrees that it, the Surety, shall be bound to take notice of and shall be held to have knowledge of all acts or omissions of the Developer in all matters pertaining to the Contract. The Surety understands and agrees that the provision in the Contract that the City of College Station shall retain certain amounts due the Developer until the expiration of thirty days from the acceptance of the Work is intended for the City's benefit, and the City of College Station shall have the right to pay or withhold any amount owing under the Contract without changing or affecting the liability of the Surety hereon in any degree. It is further expressly agreed by Surety that the City of College Station or its representatives are at liberty at any time, without notice to the Surety, to make any change in the Contract Documents and in the Work to be done thereunder, as provided in the Contract, and in the terms and conditions thereof, or to make any change in, addition to, or deduction from the work to be done thereunder; and that such changes, if made, shall not in any way vitiate the obligation in this bond and undertaking or release the Surety therefrom. It is further expressly agreed and understood that the Developer and Surety will fully indemnify and save harmless the City of College Station from any liability, loss, cost, expense, or damage arising out of or in connection with the work done by the Developer under the Contract. In the event that the City of College Station shall bring any suit or other proceeding at law on the Contract or this bond or both, the Developer and Surety agree to pay to the City the actual amounts of attorney's fees incurred by the City in connection with such suit. This bond and all obligations created hereunder shall be performable in Brazos County, Texas. This bond is given in compliance with the provisions of Chapter 2253 of the Texas Government Code, as amended, which is incorporated herein by this reference . However, all of the express provisions hereof shall be applicable whether or Participation Agreement Contract No. If"" /£1./ CRC -April, 1, 2013 not within the scope of said statute. Notices required or permitted hereunder shall be in writing and shall be deemed delivered when actually received or, if earlier, on the third day following deposit in a United State Postal Service post office or receptacle, with proper postage affixed (certified mail, return receipt requested), addressed to the respective other party at the address prescribed in the Contract Documents, or at such other address as the receiving party may hereafter prescribe by written notice to the sending party. IN WITNESS THEREOF, the said Developer and Surety have signed and sealed this instrument on the respective dates written below their signatures and have attached current Power of Attorney . FOR THE DEVELOPER: ATTEST, SEAL: (if a corporation) WITNESS: (if not a corporation) By:~Sh~ Name:~~.(~ Title: W d·nes s.... Date: \;ll l~ l~ FOR THE SURETY: ATTEST/WITNESS FOR THE CITY REVIEWED: City Attorney Participation Agreement Pebble Creek Land Company (Name of Developer) By: ~~1¥-'~~~-..<--:~..c..~~~~~~- Name: -~~...._..=--"~'""""' \CJ·-~_..._rn_,_~+-"D"'"'v ... n---=5-+--- Title: _ _,_IY\_,,_{-""'-tn,........_..\x,cL.>q.. ____ _ Date: ---=-I).'--'}..__\ k~\ l'-"Y ___ _ Developers Surety and Indemnity Company (Full Name of Surety) PO Box 19725, Irvine, CA 92623 (Address of Surety for Notice) By~ Na ~or:: Title: Underwriter and Attorney-in-Fact Date: 12-10-14 THEPERFORMANCEBONDISACCEPTED ON BEHALF OF THE CITY OF COLLEGE ON, TEXAS: 2 POWER OF ATIORNEY FOR DEVELOPERS SURETY AND INDEMNITY COMPANY INDEMNITY COMPANY OF CALIFORNIA PO Box 19725 , !RVINE , CA 92623 (949) 263-3 300 461241P KNOW ALL BY THESE PRESENTS that except as expressly lim ited . DEVELOPERS SURETY AND INDEMNITY COMPANY and INDEMNITY COMPANY OF CALIFORNIA , do each hereby make , constitute and appoint: ***Ronald B. Gengler, Jake Sitzmann, Rina Patel , Jennifer Rumancik, Scott Schwind , Sam W . Allison , Jake Morphew, John A . Couger, Greg Parrish , Terry A . Brown, jointly or severally*** as their true and lawful Attomey(s}-in-Fact , to make , execute , deliver and acknowledge , for and on behaff of said corporations , as sureties , bonds, undertakings and contracts of surety- ship giving and granting unto said Attomey(s}-in -Fact full power and authority to do and to perform every act necessary, requisite or proper to be done in connection therewith as each of said corporations could do , but reserving to each of sa id corporations full power of substitution and revocation , and all of the acts of sa id Attomey(s)-in-Fact , pursuant to these presents , are hereby ratified and confirmed . This Power of Attorney is granted and is signed by facsimile under and by authority of the follow ing resolutions adopted by the respectiive Boards of Directors of DEVELOPERS SURETY AND INDEMNITY COMPANY and INDEMNITY COMPANY OF CALIFORNIA , effective as of January 1st, 2008 . RESOLVED , that a combination of any two of the Cha irman of the Board . the Pres ident, Executive Vice-President , Senior Vice-President or any Vice President of the corporations be , and that each of them hereby is , authorized to execute th is Power of Attorney, qualifying the attomey(s) named in the Power of Attorney to execute , on behaff of the corporations , bonds , undertakings and contracts of suretyship : and that the Secretary or any Assistant Secretary of either of the corporations be , and each of them hereby is , authorized to attest the execution of any such Power of Attorney ; RESOLVED , FURTHER , that the signatures of such officers may be affixed to any such Power of Attorney or to any certificate relating thereto by facs imile , and any such Power of Attorney or certificate bearing such facsimile signatures shall be valid and binding upon the corporations when so affixed and in the future with respect to any bond , undertak ing or contract of suretysh ip to which it is attached. IN WITNESS WHEREOF, DEVELOPERS SURETY AND INDEMNITY COMPANY and INDEMNITY COMPANY OF CALIFORN IA have severally caused these presents to be signed by the ir respective officers and attested by their respective Secretary or Assistant Secretary th is November 21 , 2013 . By :\D~ Daniel Young , Senior Vice-President By :~~ Mark J. Lansdon , Vice-President State of Cal~omia County of Orange on ----'-'Nc=.r:t>1:..::ec:..:.m::.ber:::....:::2-'-'1 -=2.::..01:..::3 ____ before me ,---·-----· _______ _:_:A"'ntc:.:on""io,_,A"'"lv:..::ac.::ra:.::.do""'""'Nc=.ot=ary'"'-"'-P""ub""li.::..c ____ _ Date Here Insert Name and TiUe of the Officer personally appea red ____________________ .=.Da::.n;;.;;ie"-1 ~c..::o:.::.ung=..:a:;..;nd.::..;.cMa.:crk-"-"'J.""L"'an""s"'do''-n---------------- •••• 0 t ~c;.;o 1.'tkid·,* ~ i@;.~ .. ('I COMM. # 2()336(,6 I ~ NOTARVPU8LIC~ 3: · ORANGE COUNTY ~ My comm. 8lqlires hJg. II, 2017 t • • * ; 4 c $ 0 0 c 0 c 6 0 ' 0 Place Notary Seal Above Name(s) of Signerls) who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the with in instrument and acknowledged to me that he/shelthey executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s ), or the entity upon behalf of which the person(s) acted, executed the instrument. I certify under PENALTY OF PERJURY under the laws of the State of Ca lfomia that the foregoing parag raph is true and correct . WITNESS my hand and official seal. Antonio Alvarado , Notary Public CERTIFICATE The undersigned . as Secretary or Ass istant Secretary of DEVELOPERS SURETY AND INDEMNITY COMPANY or INDEMNITY COMPANY OF CALIFORNIA, does he reby certify that the foregoing Power of Attorney remains in full force and has not been revoked and , furthermore , that the provisions of the resolutions of the respectiv e Boards of Directors of sa id corporations set forth in the Power of Attorney are in force as of the date of this Certificate . Th is Certi fi cate is executed in the City of Irvine , Camomia , th is 1 0 day of Dec • . 2014 By :~ Cassie J. Berri sfor , ID-13SO(Rev. 11/13) IMPORTANT NOTICE To obtain information or make a complaint: You may call the Surety's toll free telephone number for information or to make a complaint at: 1-800-782-1546 You may also write to the Surety at: P.O. Box 19725 Irvine, CA 92623-9725 You may contact the Texas Department of Insurance to obtain information on companies, coverage, rights or complaints at: 1-800-252-3439 You may write the Texas Department of Insurance at: P.O. Box 149104 Austin, TX 78714-9104 Fax# 512-475-1771 web: http://www.tdi.state.tx.us E-mail: ConsumerProtection@tdi.state.tx.us PREMIUM OR CLAIM DISPUTES: Should you have a dispute concerning your premium or about a claim you should contact the Surety first. If the dispute is not resolved, you may contact the Texas Department of Insurance. AITACH THIS NOTICE TO YOUR POLICY: This notice is for information only and does not become a part or condition of the attached document. AVISO IMPORTANCE Para obtener informacion o para someter una queja: Usted puede llamar al numero de telefono gratis de para informacion o para someter una queja al: 1-800-782-1546 Usted tanbien puede escribir a Surety at: P.O. Box 19725 Irvine, CA 92623-9725 Puede comunicarse con el Departamento de Seguros de Texas para obtener informacion acerca de compa- nias, coberturas, derechos o quejas al: 1-800-252-3439 Puede escribir al Departmento de Seguros de Texas P.O. Box 149104 Austin, TX 78714-9104 Fax# 512-475-1771 web: http://www.tdi.state.tx.us E-mail: ConsumerProtection@tdi.state.tx.us DISPUTAS SOBRE PRIMAS 0 RECLAMOS: Si tiene una disputa concerniente a su prima o a un reclamo, debe comunicarse con el Surety primero. Si no se resuelve la disputa, puede entonces comuni- carrse con el departamento (TDI). UNA ESTEAVISOA SU POLIZA: Este aviso es solo para proposito de informacion y no se convierte en parte o condicion del documento adjunto. Insco Insurance Services, Inc. Underwriting Manager for: Developers Surety and Indemnity Company • Indemnity Company of California 17771 Cowan, Suite 100 Irvine, CA 92614 1-800-782-1546 www.lnscoDico.com ID-1404 (TX) (Rev. 5/12) M c C L U R E & BRO WNE ENGINEERING/SURVEYING, INC. 1008 Woodcreek Dr., Suite 103 ·College Station , Tx. 77845 · (979) 693-3838 Engineer Reg . No . F-4 58 Survey Reg . No . 101033-00 November 6 , 2014 Mr. Alan Gibbs, PE City Engineer City of College Station College Station , Texas 77840 Re : Pebble Creek Phase 70 -Oversize Participation Request Dear Alan: I have analyzed the proposed water system for the Pebble Creek Phase 70 Subdivision considering only the flows generated from this property. This analysis has been performed in order to determine the required pipe sizes to serve only this development without offsite contributions . The data generated from this analysis can be used to justify that an 8" line along Royal Adelade and Pebble Creek Parkway is the size that is required to serve this development. The cost difference between the 8" and 12 " water line is the cost shown on the attached estimate . As shown in Exhibit A , the 8" line provides adequate flow and pressure for this development. A copy of the water model with the 12 " line is included in Exhibit B, and a copy of the Engineer's Estimate for the difference between the two lines is included in Exhibit C. If you need additional information , please contact me at your convenience . ~rel//'y ,. ~L-- ry . Robertson , P.E. ce President -Engineering --···•''''"' --... OF; 'h -• \'~ >;;·, •••••• f:" r, •\\ ;" ~~.· ··. A .. <::1 ,, 'I ,.. ,• ..;''"<}":":? ·:-· ) ; t / /l /i. t~~-/11 \ * 'I • .,. LP; • ~ i., I··········· .. ···· .. ······· . ~ ~ JEFFE'.:\Y l.. P03C:F!TSO~ j , .... : ........................... ,; '-c'·. 94 7 ,+5 ... ,,I I ~ ·. :,~ ,_., f, o,.,··.J.1cE "'-;;~ ... · (:"' .::' 'l "-.C. • J t:'J ~ • .-i./ \ ... ·-s·· ......... ·,e:,"-' - \.\ ICNA\. t.'t--,,_.: ' " .......... - F:\1065 -Dav is You ng \00 19 -Pebbl e Creek Ph as e 7 0\Docs\OP Requ est\C oC S -G ibbs0 1 -OP Justifi ca ti on .doc Item# I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 23 24 23 24 25 26 27 28 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PARKWAY MB ES I PROJ #: 10 65-00 19 OVERSIZE PARTICIPATION ESTIMA TE October 14, 2014 Description I Unit Quantity Unit Price 8" w s ater 1yste m c on s truction 12" PVC C909 Cl 200 Water Line Str. Backfill L.F . 0 46 .00 12" PVC C909 Cl 200 Water Line , Non -Str. Backfill L.F . 0 43.00 8" PVC, C909 Cl 200 , Water Line, Str. Backfill L.F . 4,519 38.00 8" PVC, C909 Cl 200 , Wate r Line Non-Str. Backfill L.F . 2,099 35.00 6" PVC, C909 Cl 200 Wate r Line Str. Backfill L.F. 738 30 .00 4" PVC, C909 Cl 200 Wa ter Line Str. Backfill L.F. 313 22 .50 Fire Hydrant Assembly EACH 5 3,800 .00 12"xl2" M.J. Tee EACH 0 600 .00 12"x8 " M.J. Tee EACH 0 500 .00 8"x8" M.J . Tee EACH 6 475 .00 8"x6" M .J . Tee EACH 3 400 .00 8 "x4" M .J. Tee EACH 1 350.00 12" Gate Valve EACH 0 3,035.00 12 "x8" Reduce r EACH 0 500 .00 8 " M .J. Gate Valve EACH 13 1,250 .00 6 " M .J. Ga te Valve EACH 3 950 .00 12"x13" M.J. Ancho r Coupli ng EACH 0 300.00 8"xl3" M.J . Anchor Cou pling EACH 15 250 .00 6"xl3" M.J. Anchor Co up ling EACH 8 250 .00 12"x45 deg . Bend EACH 0 250 .00 8"x22.5 deg. Bend EACH 4 250 .00 8"xll.25 deg. Bend EACH 1 250.00 6"x45 deg . Bend EACH 1 250.00 6 "x22.5 deg. Bend EACH 1 250 .00 6"x l 1.25 deg. Bend EACH 1 250 .00 2" Blow Off Valve Assembly EACH 1 1,100 .00 Connect to Existing Waterline EACH 3 1,100 .00 Water Service l" Type K Coooer Sho rt Si de (<20 ') EACH 1 800.00 Water Service 1.5" Type K Cooo er Sho rt Si de (<20') EACH 17 950 .00 Water Service, l" Type K Coooer Sho rt Side (>20 ') EACH 1 1,250 .00 Water Service 1.5" Type K Co oo er Short Side (>20') EACH 20 1,450 .00 8" Water System Sub total TOTAL CO NS T RU CTION COST BO NDI N G COS TS TOT AL OP REQ UEST Total 0 0 171 ,722 73 ,465 22 ,140 7 ,043 19 ,000 0 0 2 ,850 1,200 350 0 0 16,250 2,850 0 3,750 2 ,000 0 1,000 250 250 250 250 1,100 3,300 800 16 ,150 1,250 29 ,000 $376 220 $43 ,120 $4 ,750 $47 ,870 The above construction esti ma te is based on the engi nee r 's pre liminary opini on of probabl e construction costs. This estimate constitutes our best judgment at this time . Please note that the engineer does no t have any contro l over contractor or suppl ier _, ......... ~,,\ _..: ... c: OF r '' 11 IJ Date 2 of2 -~'\.-: ........ f..{ .. \, ,,.. •• • II "• 4 1 1 ,. C;; •• • /!\._ ••• ;JI • i P * .• ~{~ \ I " : "-'"-" . * '·1 ,, ... . ,_. ""' ·. * f f'····: ...................... : .... i I JEFFEnY l R n~c:R T"O ·" ~ f, . """~-·.... .... i'i ~ ~·· .. :···························.;' ,, . 9'7 "5 : "' f .:) .. 4 -~ : I'\.. ,I ~· -~· '' ·(-;:··..t.lcrn::."f_"O .-·ff;·.:;' ~~t:sia·~~~'f\.\~_: '''""''" .... - ,.Ml:!!f McCLURE & BROWNE E N GINEERING /S U RVEYING , INC. Ir ~ 1008 Woodcreek Or., Suite 103 ·College Station , Tx. 77845 · (979) 693-3838 Engin ee r Reg . No. F-458 Survey Reg . No . 101 033--00 EXHIBIT A 8" Water Line Fire Flow Model F:\1065 -Davis Young \0019 -Pebble Creek Phase 70\Docs\OP Request\CoCS -Gibbs01 -O P Justification.doc --------------------------------------------------------" Exhibit A 8 " Pipe Fire Flow K Y P I P E 5 Pipe Network Modeling Software Copyrighted by KYPIPE LLC Version 5 -February 2010 Date & Time : Mon Nov 10 15 :57 :48 2014 Master File : f :\1065 -davis young\0019 -pebble creek phase 7d\docs\op request\10650019 -fire 8 - inch .KYP\10650019 -fire 8 -inch .P2K S U M M A R Y 0 F 0 R I G I N A L U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . gallons/minute feet PRESSURE ........... . psig PIPELINE DAT A STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE DAT A NODE NAMES LENGTH DIAMETER ROUGHNESS MINOR P I P E NAM E #1 #2 (ft) (in) COEFF . LOSS COEFF. P-1 J-21 J-19 135 .54 8 .00 140 .0000 0 .00 P-2 J-21 J-22 148 .79 4 .00 140 .0000 0 .00 P-3 J-19 J-18 144 .81 8 .00 140 .0000 0 .00 P-4 J-19 J-20 317 .67 8 .00 140 .0000 0 .00 P-5 J -18 J -17 4 96 . 99 8 .00 140 .0000 0 .00 P-6 J-20 J-18 452 .72 6 .00 140 .0000 0 .00 P-7 J-20 J-16 152.23 8 .00 140.0000 0 .00 P-8 J-16 J-6 295 .10 8 .00 140 .0000 0 .00 P-9 J-17 J -16 317 .11 8 .00 140 .0000 0 .00 P-10 J -17 J-1 163 .21 8 .00 140 .0000 0 .00 P-11 J-1 VP-3 1867 .79 8 .00 140 .0000 0 .00 P-20 VP-2 J-5 348 .00 8 .00 135 .9163 0 .00 P-21 J-5 J-13 264 .00 8 .00 140 .0000 0 .00 P-22 J -7 J-6 78 .00 8 .00 140 .0000 0 .00 P-23 J-7 J-8 467 .00 8 .00 140 .0000 0.00 P-24 J-8 J-9 275 .00 4 .00 140 .0000 0 .00 P-25 J-8 J-10 356 .00 8 .00 140 .0000 0 .00 P-26 J-10 J-11 201. 00 4 .00 140 .0000 0 .00 P-27 J-10 J-21 229 .00 8 .00 140 .0000 0 .00 P-28 J-13 J-7 435 .00 8 .00 140 .0000 0 .00 P-29 J-13 J -14 445 .00 8 .00 140 .0000 0 .00 P-30 J-5 J-15 515 .00 4.00 140 .0000 0 .00 P U M P/L 0 S S E L E M E N T DA TA THERE IS A DEVICE AT NODE VP-2 DESCRIBED BY THE FOLLOWING DATA : (ID= 1) HEAD FLOWRATE EFFICIENCY (ft) (gpm) (%) 287 .22 0 .00 75 .00 184 .15 1250 .00 75 .00 -84 .84 2500 .00 75 .00 THERE IS A DEVICE AT NODE VP-3 DESCRIBED BY THE FOLLOWING DATA : (ID= 2) HEAD (ft) 279 .23 186 .92 -54 .00 N 0 D E DAT A NODE NAME J -1 J -5 J -6 J -7 J -8 J -9 J -10 J -11 J -13 J-14 J-15 J -16 J -17 J -18 J -19 J-20 J-21 J -22 VP -2 VP -3 NODE TITLE FLOWRATE (gpm) 0 .00 1500 .00 3000 .00 EXTERNAL DEMAND (gpm) 6 .00 2 .25 3 .50 3 .75 6 .75 3 .75 0 .00 4 .50 0 .00 4 .50 6 .75 36 .00 13 . 50 21. 00 6 .00 15 .00 1003 .00 12 .00 0 U T P U T 0 P T I 0 N D A T A EFFICIENCY (%) 75 .00 75 .00 75 .00 JUNCTION EL EVATION (ft) 250 .00 232 .00 222 .00 224 .00 242 .00 238 .00 2 4 6 .00 246 .00 234 .00 220 .00 228 .00 228 .00 2 4 8 .00 2 4 8 .00 246 .00 2 4 2 .00 248 .00 248 .00 230 .00 258 .00 EXTERNAL GRADE (ft) 230 .00 258 .00 OUTPUT SELECTION : ALL RESULTS ARE INCLUDED IN THE TABULATED OUTPUT MAXIMUM AND MINIMUM PRESSURES 5 MAXIMUM AND MINIMUM VELOCITIES 5 MAXIMUM AND MINIMUM HEAD LOSS/1000 5 S Y S T E M C 0 N F I G U R A T I 0 N NUMBER OF PIPES ...........•....... (p) 22 NUMBER OF END NODES ............... (j I 18 NUMBER OF PRIMARY LOOPS ........... (1) 3 NUMBER OF SUPPLY NODES ............ (fl 2 NUMBER OF SUPPLY ZONES ............ (z) 1 Case : 0 RESULTS OBTAI NED AFTER 5 TRIALS : ACCURACY 0 .00000 S I M U L A T I 0 N D E S C R I P T I 0 N (L A B E LI P I P E L I N E STATUS CODE : P I P E NAM E P-1 P-2 P-3 R E S U L T S XX -CLOSED PIPE NODE NUMBERS ffl U2 J-19 J-21 J-18 J -21 J -22 J-19 CV -CHECK VALVE FLOWRATE (gpm ) 693 .97 12 .00 394 .08 HEAD LOSS (ft) 1.10 0 .02 0 .41 MINOR LOSS (ft) 0 .00 0 .00 0 .00 LINE HL+ML/ VELO . 1000 (ft/sl (ft/ft) 4 .43 0 .31 2 .52 8 .10 0 .13 2 .84 HL/ 1000 (ft/ft) 8 .10 0 .13 2 .84 P-4 J -20 J -19 305 .90 0 .56 0 .00 1. 95 1 .78 1. 78 P-5 J -17 J -18 356 . 4 6 1.17 0 .00 2 .28 2 .36 2 .36 P-6 J -20 J -1 8 58 .62 0 .15 0 .00 0 .67 0 .34 0 .34 P-7 J-16 J-20 379 .52 0 . 40 0 .00 2 .42 2 .65 2 .65 P-8 J -6 J -16 94 .56 0 .06 0 .00 0 .60 0 .20 0 .20 P-9 J -17 J -16 320 .95 0 .62 0 .00 2 .05 1. 94 1. 94 P-10 J -1 J -17 690 .91 1. 31 0 .00 4 . 41 8 .03 8 .03 P-11 VP -3 J-1 696 . 91 15 .24 0 .00 4 . 45 8 .16 8 .16 P-20 VP-2 J -5 451.34 1. 34 0 .00 2 .88 3 .86 3 .86 P-21 J -5 J-13 442 .34 0 .93 0 .00 2 .82 3 .52 3 .52 P-22 J -7 J -6 98 .06 0 .02 0 .00 0 .63 0 .22 0 .22 P-23 J -7 J -8 336 .03 0 .99 0 .00 2 .14 2 .11 2 .11 P-24 J -8 J -9 3 .75 0 .00 0 .00 0 .10 0 .01 0 .01 P-25 J-8 J -10 325 .53 0 .71 0 .00 2 .08 1. 99 1. 99 P-26 J -10 J-11 4.50 0 .00 0 .00 0 .11 0 .02 0 .02 P-27 J -10 J -21 321 .03 0 . 4 4 0 .00 2 .05 1. 94 1. 94 P-28 J -13 J -7 437 .84 1. 50 0 .00 2 .79 3 . 45 3 . 45 P-29 J -13 J -14 4 .50 0 .00 0 .00 0 .03 0 .00 0 .00 P-30 J-5 J -1 5 6 .75 0 .02 0 .00 0 .17 0 .04 0 .04 p U M P/L 0 s s E L E M E N T R E s u L T s INLET OUTLET PUMP EFFIC-USEFUL INCREMTL TOTAL #PUMPS #PUMPS NPSH NAME FLOWRATE HEAD HEAD HEAD ENCY POWER COST COST PARALLEL SERIES Avail . (gpm) (ft) (ft) (ft) (%) (Hp) ($) ($) (ft) -------------------------------------------------------------------------------------------------------- VP -2 45 1.34 0 .00 27 1.59 27 1. 6 75 .00 0 . 0 .0 0 .0 33 .2 VP -3 696 . 91 0 .00 256 .91 256 .9 75 .00 o. 0 .0 0 .0 33 .2 N 0 D E R E s u L T s NODE NODE EX TERNAL HYDRAULIC NODE PRESSURE NODE NAME TITLE DEMAND GRADE ELEVATION HEAD PRESSURE (gpml (ft) (ft) (ft ) (psi) ------------------------------------------------------------------------------ J -1 6 .00 4 99 . 67 250 .00 249 .67 108 .19 J -5 2 .25 500 .25 232 .00 268 .25 116 . 24 J -6 3 .50 4 97 . 81 222 .00 275 .81 119 .52 J -7 3 .75 497 .82 224 .00 273 .82 118 . 66 J -8 6 .75 4 96 . 84 242 .00 254 .84 110 . 4 3 J -9 3 .75 496 .83 238 .00 258 .83 112 . 16 J -10 0 .00 4 96 . 13 246 .00 250 .13 108 .39 J -11 4 .50 4 96 .12 246 .00 250 .12 108 .39 J -13 0 .00 499 .32 234 .00 265 .32 114 . 97 J -1 4 4 .50 499 .32 220 .00 279 .32 121. 04 J -15 6 .75 500 .23 228 .00 272 . 23 11 7 . 97 J -16 36 .00 497 .75 228 .00 2 69 . 7 5 116 .89 J -17 13 .50 4 98 . 36 248 .00 250 .36 108 . 4 9 J -18 21.00 497 .19 248 .00 249 .19 107 .98 J -19 6 .00 496 .78 246 .00 250 .78 108 . 67 J -20 15 .00 4 97 . 34 242 .00 255 .34 110 . 65 J -21 1003 .00 495 .68 248 .00 247 .68 107 .33 J -22 12 .00 495 .66 248 .00 247 .66 107 .32 VP -2 50 1. 59 230 .00 271 .59 11 7 . 69 VP -3 514 .91 258 .00 256 .91 111. 33 M A X I M U M A N D M I N I M U M V A L U E S p R E S S U R E S JUNCTION MAXIMUM JUNCTION MINIMUM NUM BER PRESSURES NUMBER PRESSURES (ps i ) (psi) ------------------------------------------ J-14 121.04 J -22 107 .32 J -6 119 . 52 J -21 107 .33 J -7 118 . 66 J -18 107 .98 J-15 11 7 . 97 J-1 108 .19 VP -2 117 . 6 9 J -11 108 .39 V E L 0 C I T I E s PIPE MAXIMUM PIPE MINI MUM NUMBER VELOCITY NUMB ER VELOCITY (ft/s) (ft/s) ------------------------------------------ P-11 4 .45 P-29 0 .03 P-1 4 .43 P-24 0 .10 P-10 4 .41 P-2 6 0 .11 P-20 2 .88 P-30 0 .17 P-21 2 .82 P-2 0 .31 H L + M L 0 0 0 PIPE MAXIMUM PI PE MINIMUM NUMBER HL+ML/1000 NUMBER HL+ML/1000 (ft/ ft) (ft/ft) ------------------------------------------ P-11 8 .16 P-29 0 .00 P-1 8 .10 P-24 0 .01 P-10 8 .03 P-26 0 .02 P-20 3 .86 P-30 0 .04 P-21 3 .52 P-2 0 .13 H L 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBER HL/1000 NUMBER HL/1000 (f t/ft) (ft/ ft) ------------------------------------------ P-11 8 .16 P-29 0 .00 P-1 8 .10 P-24 0 .01 P-10 8 .03 P-26 0 .02 P-20 3 .86 P-30 0 .04 P-21 3 .52 P-2 0 .13 SU M MARY 0 F I N F L 0 W S A N D OUTFLO W S (+) INFLOWS INTO THE SYSTEM FROM SUPPLY NODES (-) OUTFLOWS FROM THE SYST EM INTO SUPPLY NODES NET NET NET NODE NAME VP-2 VP -3 SYSTEM SYSTEM SYSTEM INFLOW OUT FLOW DEMAND FLOWRATE (gpm) 451.34 696 . 91 1148 .25 0 .00 1148 .25 NODE TI TLE ***** HYDRAULIC ANALYS I S COMPLETED ***** McCL U RE & BROWNE E N GINEERING /S U RVEYING , IN C . 1008 Woodcreek Dr., Sutte 103 · College Station , Tx. 77845 · (979) 693-3838 EXHIBITB Eng ineer Reg . No . F-458 Survey Reg . No . 101033-00 12" Water Line Fire Flow Model F:\106 5 -Davis Young \0019 -Pebble Creek Phase 70\Docs\OP Request\CoCS -Gi bbs01 -OP Justification .doc Exhibit B 12" Pipe Fire Flow K YPIPE5 Pipe Net work Modeling Software Copyrighted by KYPIPE LLC Version 5 -February 2010 Date & Time : Mon Nov 10 15 :59 :55 2014 Master File : f :\1065 -davis young\0019 -pebble creek phase 7d\docs\op request\10650019 -fire 12- inch .KYP\10650019 -fire 12 -inch .P2K SUMMARY 0 F 0 R I G I N A L D A T A ************************************************ U N I T S S P E C I F I E D FLOWRATE ........... . HEAD (HGL) ......... . PRESSURE ........... . P I P E L I N E DAT A gallons/minute feet psig STATUS CODE : XX -CLOSED PIPE CV -CHECK VALVE NODE NAMES DIAMETER ROUGHNESS MINOR P I P E N A M E #1 #2 LENGTH (ft) (in) COEFF . LOSS COEFF . P-1 J -21 J -19 135 .54 8 .00 140 .0000 0 .00 P-2 J -21 J -22 148 .79 4 .00 140 .0000 0 .00 P-3 J -19 J -18 14 4. 81 8 .00 1 40 .0000 0 .00 P-4 J -19 J-20 317 . 67 8 .00 140 .0000 0 .00 P-5 J -18 J -17 496 .99 8 .00 1 40 .0000 0 .00 P-6 J -20 J -18 452 .72 6 .00 140 .0000 0 .00 P-7 J -20 J -16 152 .23 8 .00 140 .0000 0 .00 P-8 J -16 J -6 2 95 . 10 12 .00 140 .0000 0 .00 P-9 J-17 J -16 317 .11 8 .00 140 .0000 0 .00 P-10 J -17 J -1 163 .21 8 .00 140 .0000 0 .00 P-11 J -1 VP-3 1867 .79 8 .00 140 .0000 0 .00 P-20 VP-2 J -5 348 .00 8 .00 135 .9163 0 .00 P-21 J -5 J-13 264 .00 8 .00 140 .0000 0 .00 P-22 J -7 J -6 78 .00 8 .00 140 .0000 0 .00 P-23 J-7 J -8 4 67 . 00 8 .00 140 .0000 0 .00 P-24 J -8 J-9 275 .00 4 .00 1 40 .0000 0 .00 P-25 J-8 J -10 356 .00 8 .00 140 .0000 0 .00 P-26 J -10 J-11 20 1. 00 4 .00 140 .0000 0 .00 P-27 J -10 J -21 229 .00 8 .00 140 .0000 0 .00 P-28 J -13 J-7 435 .00 8 .00 140 .0000 0 .00 P-29 J -13 J -14 445 .00 12 .00 140 .0000 0 .00 P-30 J -5 J -15 515 .00 4 .00 140 .0000 0 .00 P U M P/L 0 S S E L E M E N T DA T A THERE IS A DEVICE AT NODE VP-2 DESCRIBED BY THE FOLLOWING DATA : (ID~ 1) HEAD FLOW RATE EFFICIENCY (ft) (gpml (%) 287 .22 0 .00 75 .00 184 .15 1250 .00 75 .00 -84 .84 2500 .00 75 .00 THERE IS A DEVICE AT NODE VP-3 DESCRIBED BY THE FOLLOWING DATA : (ID~ 21 HEAD (ft) 279 .23 186 .92 -54 .00 N 0 D E DAT A NODE NAME J-1 J-5 J-6 J-7 J -8 J -9 J-10 J -11 J -13 J -14 J-15 J-16 J-17 J -18 J-19 J -20 J -21 J-22 VP-2 VP-3 NODE TITLE FLOWRATE (gpm) 0 .00 1500 .00 3000 .00 EXTERNAL DEMAND (gpm) 6 .00 2 .25 3 .50 3 .75 6 .75 3 .75 0 .00 4 .50 0 .00 4 .50 6 .75 36 .00 13 .50 21. 00 6 .00 15 .00 1003 .00 12 .00 0 U T P U T 0 P T I 0 N D A T A EFFIC I ENCY (%) 75 .00 75 .00 75 .00 JUNCTION ELEVATION (ft) 250 .00 232 .00 222 .00 224 .00 242 .00 238 .00 246 .00 246 .00 234 .00 220 .00 228 .00 228 .00 248 .00 248 .00 246 .00 2 4 2 .00 248 .00 248 .00 230 .00 258 .00 EXTERNAL GRADE (ft) 230 .00 258 .00 OUTPUT SELECTION : ALL RESULTS ARE INCLUDED IN THE TABULATED OUTPUT MAXIMUM AND MINIMUM PRESSURES 5 MAXIMUM AND MINIMUM VELOCITIES 5 MAXIMUM AND MINIMUM HEAD LOSS/1000 5 S Y S T E M C 0 N F I G U R A T I 0 N NUMBER OF PIPES ................... (p) 22 NUMBER OF END NODES ............... (j) 18 NUMBER OF PRIMARY LOOPS ...•....... (1) 3 NUMBER OF SUPPLY NODES ............ (f) 2 NUMBER OF SUPPLY ZONES ............ (z) Case : 0 RESULTS OBTAINED AFTER 5 TRIALS : ACCURACY 0 .00000 S I M U L A T I 0 N D E S C R I P T I 0 N (L A B E L) P I P E L I N E R E S U L T S STATUS CODE : P I P E N A M E P-1 P-2 XX -CLOSED PIPE NODE NUMBERS #1 #2 J-19 J -21 J-21 J-22 CV -CHECK VALVE FLOWRATE (gpm) 696 . 69 12 .00 HEAD MINOR LOSS LOSS (ft) (ft) 1.11 0 .02 0 .00 0 .00 LINE HL+ML/ VELO . 1000 (ft/s) (ft/ft) 4 . 4 5 0 .31 8 .15 0 .13 HL/ 1000 (ft/ft) 8 .15 0 .13 P-3 J-18 J-19 395 .29 0 . 41 0 .00 2 .52 2 .85 2 .85 P-4 J -20 J-19 307 .41 0 .57 0 .00 1. 96 1. 79 1. 79 P-5 J -17 J -18 357 .09 1.18 0 .00 2 .28 2 .36 2 .36 P-6 J-20 J -18 59 .20 0 .16 0 .00 0 .67 0 .34 0 .34 P-7 J -16 J-20 381 .61 0 . 41 0 .00 2 .44 2 . 67 2 .67 P-8 J -6 J-16 97 .54 0 .01 0 .00 0 .28 0 .03 0 .03 P-9 J -17 J-16 320 .07 0 .61 0 .00 2 .04 1. 93 1. 93 P-1 0 J -1 J-17 690 .66 1. 31 0 .00 4 .41 8 .02 8 .02 P-11 VP -3 J -1 696 .66 15 .23 0 .00 4 .45 8 .15 8 .15 P-20 VP -2 J-5 451 .60 1. 34 0 .00 2 .88 3 .86 3 .86 P-21 J -5 J -13 442 .60 0 .93 0 .00 2 .82 3 .52 3 .52 P-22 J -7 J -6 101. 04 0 .02 0 .00 0 .64 0 .23 0 .23 P-23 J -7 J -8 333 .3 1 0 .97 0 .00 2 .13 2 .08 2 .08 P-24 J -8 J -9 3 .75 0 .00 0 .00 0 .10 0 .01 0 .01 P-25 J -8 J-10 322 .8 1 0 .70 0 .00 2 .06 1. 96 1. 96 P-26 J -10 J-11 4 .50 0 .00 0 .00 0 .11 0 .02 0 .02 P-27 J -10 J-21 318 .31 0 .44 0 .00 2 .03 1. 91 1. 91 P-28 J -13 J -7 4 38 . 10 1. 50 0 .00 2 .80 3 . 45 3 . 45 P-29 J -13 J-14 4 .50 0 .00 0 .00 0 .01 0 .00 0 .00 P-30 J -5 J -15 6 .75 0 .02 0 .00 0 .17 0 .04 0 .04 P U M P/L 0 s s E L E M E N T R E s u L T s INLET OUTLET PUMP EFFIC -USEFUL INCREMT L TOTAL ff PUMPS ff PUMPS NPSH NAME FLOWRATE HEAD HEAD HEAD ENCY POWER COST COST PARALLEL SERIES Avail . (g pm ) (ft) (ft) (f t) (%) (Hp) ($) ($) (ft) -------------------------------------------------------------------------------------------------------- VP -2 451 .60 0 .00 271. 58 271 .6 75 .00 0 . 0 .0 0 .0 33 .2 VP -3 696 . 66 0 .00 256 .93 256 .9 75 .00 0 . 0 .0 0 .0 33 .2 N 0 D E R E s u L T s NODE NODE EXTERNAL HYDRAULIC NODE PRESSURE NODE NAME TITLE DEMAND GRADE ELEVATIO N HEAD PRESSURE (gpm) (ft) (ft) (ft) (psi) ------------------------------------------------------------------------------ J -1 6 .00 499 .70 250 .00 249 .70 108 .20 J -5 2 .25 500 .23 232 .00 268 .23 11 6 .23 J -6 3 .50 497 . 78 222 .00 275 .78 119 .51 J -7 3 .75 49 7 .80 224 .00 273 .80 11 8 . 65 J -8 6 .75 496 .83 242 .00 254 .83 11 0 .43 J -9 3 .75 496 .83 238 .00 258 .83 11 2 . 16 J -10 0 .00 496 .13 246 .00 250 .13 108 .39 J -11 4 .50 496 .13 246 .00 250 . 13 108 .39 J -13 0 .00 499 .30 234 .00 265 .30 114 .97 J -14 4 .50 499 .30 220 .00 279 .30 121. 03 J -15 6 .75 500 .21 228 .00 272 .21 117 .96 J -16 36 .00 497 . 78 228 .00 269 . 78 116 . 90 J -17 13 .50 4 98 . 39 248 .00 250 .39 108 .50 J -18 21. 00 497 .21 248 .00 249 .21 107 .99 J -19 6 .00 4 96 . 80 246 .00 250 .80 108 .68 J-20 15 .00 497 .37 242 .00 255 .37 110 . 66 J -21 1003 .00 495 .69 248 .00 247 .69 107 .33 J -22 12 .00 495 .67 248 .00 247 .67 107 .33 VP -2 501. 58 230 .00 271 .58 117 . 68 VP -3 514 .93 258 .00 256 .93 111 . 33 M A X I M U M A N D M I N I M U M V A L U E S p R E S S U R E S JUNCTIO N MAXIMUM JUNCTION MINIMUM NUMBER PRESSURES NUMBER PRESSURES (psi) (ps i ) ------------------------------------------ J -14 121. 03 J -22 107 .33 J-6 119 .5 1 J-21 107 .33 J -7 118 . 65 J-18 107 .99 J-15 11 7 . 96 J-1 108 .20 VP -2 117 . 68 J -11 108 .39 V E L 0 C I T I E s PIPE MAXIMUM PI PE MIN IM UM NUMBER VELOCITY NUMBER VELOCITY (ft/sl (ft/s) ------------------------------------------ P-1 4 .45 P-2 9 0 .01 P-11 4 .45 P-2 4 0 .10 P-10 4 .41 P-2 6 0 .11 P-20 2 .88 P-30 0 .17 P-21 2 .82 P-8 0 .28 H L + M L I 0 0 0 PI PE MAXIMUM PIPE MINIMUM NUMBER HL+ML/1000 NUMBER HL+ML/1000 (ft/ft) (ft/ft) ------------------------------------------ P-1 8 .15 P-29 0 .00 P-11 8 .15 P-2 4 0 .01 P-10 8 .02 P-26 0 .02 P-20 3 .86 P-8 0 .03 P-2 1 3 .52 P-3 0 0 .0 4 H L I 1 0 0 0 PIPE MAXIMUM PIPE MINIMUM NUMBE R HL/1000 NUMBER HL/1000 (ft /ft) (ft/ft) ------------------------------------------ P-1 8 .15 P-29 0 .00 P-11 8 .15 P-24 0 .01 P-10 8 .02 P-26 0 .02 P-20 3 .86 P-8 0 .03 P-21 3 .52 P-30 0 .04 S U M M A R Y 0 F I N F L 0 W S A N D OUTFLO W S (+) INFLOWS INTO THE SYST EM FROM SUPPLY NOD ES (-) OUT FLOWS FRO M THE SYST EM I NTO SUPPLY NOD ES NET NET NET NODE NAME VP -2 VP -3 SYSTEM SYS TE M SYSTEM INFLO W OUT FLOW DEMAND FLOWRATE (gpm) 451 .60 696 . 66 1148 . 25 0 .00 1148 . 25 NODE TITLE ***** HY DRAULIC ANAL YSIS COMPL ETED ***** McCLURE & BROW N E E N GINEERING /S U RVEYING, INC. 1008 Woodc reek Dr., Suite 103 ·College Station , Tx. 77845 · (979) 693-3838 EXHIBIT C Cost Estimate Engineer Reg . No. F-458 Survey Reg . No . 101033-00 F:\1065 -Dav is Young \0019 -Pe b ble Creek Phase 7D\Docs\O P Request\CoCS-Gibbs01 -O P Justification.doc Item# I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 21 22 22 23 22 23 24 25 26 27 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PAR.KW A Y M B ESI PROJ #: 1065-0019 OVERSIZE PARTICIPATION ESTIMA TE October 14, 2014 Description Unit Quantity Unit Price 12 " w t s t c t ti a er 1ys em ons rue on 12" PVC C909 Cl 200 Wa ter Line . Str. Backfill L.F . 1,868 46 .00 12" PVC, C909 Cl 200 Water Line, Non-Str. Backfill L.F. 1,93 1 43 .00 8 " PVC C909 Cl 200 , Wa ter Line, Str. Backfi ll L.F . 2 651 38 .00 8" PVC C909 Cl 200 , Water Line, Non-Str. Backfill L.F . 168 35 .00 6" PVC C909 Cl 200 , Water Line, Str. Backfi ll L.F . 738 30 .00 4" PVC, C909 Cl 200 Water Line Str. Backfill L.F . 3 12 22 .50 F ire Hydrant Assembly EACH 6 3,800.00 12"xl2" M .J. Tee EACH 1 600 .00 12"x8" M.J. Tee EACH 2 500 .00 8 "x8" M.J. Tee EACH 1 475 .00 8"x6" M .J. Tee EACH 3 400 .00 8 "x4" M .J. Tee EACH 1 350.00 12" Gate Valve EACH 5 3,035.00 12"x8" Re ducer EACH 1 500 .00 8 " M.J. Gate Valve EACH 8 1,250.00 6" M . J. Gate Valve EACH 3 950.00 12"xl3" M .J. Anchor Coupli ng EACH 6 300.00 8 "x13" M .J. Anchor Coupling EACH 9 250 .00 6"xl3" M .J. Anchor Coupling EACH 8 250 .00 12 "x45 deg . Bend EACH 2 250 .00 8"x22.5 deg. Bend EACH 2 250.00 8"xl 1.25 deg. Bend EACH 1 250 .00 6"x45 deg . Bend EACH 1 250 .00 6 "x22 .5 deg. Bend EACH 1 250.00 6"xl 1.25 deg. Bend EACH 1 250.00 2" Blow Off Valve Assem bl y EACH 1 1,100.00 Connect to Existing Waterline EACH 3 1,100 .00 Water Service, l" Type K Cooper Sho rt Sid e (<20 ') EACH 1 800 .00 Water Service, 1.5" Type K Cooo er Sho rt Si de (<20') EACH 17 950 .00 Water Service, l" Type K Copper Sho rt Sid e (>20 ') EACH 1 1,250.00 Water Service, 1.5'' Type K Co pp er Short Si de (>20') EACH 20 1,450 .00 12" Water System Subtotal 1 of2 Total 85 ,928 83 ,033 100 ,738 5,880 22,140 7 ,020 22 ,800 600 1,000 475 1,200 350 15,175 500 10 ,000 2,850 1,800 2,250 2,000 500 500 250 250 250 250 1,100 3,300 800 16 ,150 1,250 29 ,000 $419 ,339 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PARKWAY MBESI PROJ #: 1065-0019 OVERSIZE PARTICIPATION ESTIMATE October 14, 2014 Item# I Description I Unit Quantity UnitPdce 8" w t s t c t f a er •YS em ons rue ion 1 12" PVC. C909 Cl 200 Water Line Str. Backfill L .F. 0 45.00 2 12" PVC, C909 Cl 200 Water Line Non-Str. Backfill L.F. 0 40 .00 3 811 PVC C909 Cl 200 Water Line Str. Backfill L.F. 4 519 35 .00 4 8" PVC. C909 Cl 200 Water Line Non-Str. Backfill L .F . 2 099 27 .00 5 6" PVC. C909 Cl 200 Water Line Str. Backfill L.F. 738 24 .00 6 4" PVC C909 Cl 200 Water Line Str. Backfill L.F. 313 18.00 7 Fire Hydrant Assembly EACH 5 3,500.00 8 12"xl2" M .J. Tee EACH 0 700 .00 9 12"x8" M.J. Tee EACH 0 675 .00 IO 8"x8 " M.J. Tee EACH 6 475 .00 11 8"x6" M.J. Tee EACH 3 400.00 12 8"x4" M.J. Tee EACH l 350.00 13 12" Gate Valve EACH 0 2 200 .00 14 12"x8" Reducer EACH 0 500 .00 15 8" M .J. Gate Valve EACH 13 1 250 .00 16 6 11 M .J. Gate Valve EACH 3 950 .00 17 12"xl3" M .J. Anchor Coupling EACH 0 250 .00 18 8"x13" M.J. Anchor Couoling EACH 15 250.00 19 6 11 xl3 11 M.J. Anchor Couoling EACH 8 250 .00 20 l2"x45 de.e;. Bend EACH 0 250.00 21 8"x22 .5 deg, Bend EACH 4 250 .00 22 8"xll .25 deg. Bend EACH 1 250 .00 23 6"x45 deg. Bend EACH 1 250 .00 23 6"x22 .5 deg. Bend EACH l 250 .00 24 6"xl l.25 deg. Bend EACH 1 250 .00 23 2" Blow Off Valve Assemblv EACH 1 1,100.00 24 Connect to Existing Waterline EACH 3 1,100 .00 25 Water Service 111 Tvne K Conner Short Side (<20 ') EACH 1 800.00 26 Water Service 1.5" Type K Copper Short Side (<20') EACH 17 950 .00 27 Water Service 1" Tvne K Cooner Short Side (>20') EACH 1 1,250.00 28 Water Service 1.5" TvPe K Coooer Short Side (>20') EACH 20 1,450 .00 811 Water System Subtotal TOTAL CONSTRUCTION COST BONDING COSTS TOTAL OP REQUEST The above construction estimate is based on the engineer's preliminary opinion of probable construction costs. This estimate constitutes our best judgment at this time . Please note that the engineer does not have any control over contractor or supplier ., ! I 2 of2 Total 0 0 158 165 56,673 17 712 5 634 17,500 0 0 2,850 1200 350 0 0 16 250 2,850 0 3 750 2,000 0 1,000 250 250 250 250 1,100 3 300 800 16,150 1,250 29 000 $338 534 $52,190 $4,750 $56,940 Item# I 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 21 22 22 23 22 23 24 25 PEBBLE CREEK PHASE 7D & PEBBLE CREEK PARKWAY MBESI PROJ #: 1065-0019 OVERSIZE PARTICIPATION ESTIMATE October 14, 2014 Description I Unit Quantity 12" w t s t c a er iys em onstruchon 12" PVC C909 Cl 200 Water Line Str. Backfill L.F. 1,868 12" PVC C909 CI 200 Water Line Non-Str. Backfill L.F. 1.931 811 PVC C909 Cl 200 Water Line Str. Backfill L .F . 2.651 8 11 PVC C909 Cl 200 Water Line Non-Str. Backfill L.F. 168 6" PVC C909 Cl 200 Water Line Str. Backfill L.F. 738 4" PVC C909 Cl 200 Water Line Str. Backfill L.F. 312 Fire Hydrant Assembly EACH 6 12"xl2" M.J. Tee EACH 1 12"x8" M .J. Tee EACH 2 8"x8" M.J. Tee EACH 1 8"x6" M.J. Tee EACH 3 8"x4" M .J. Tee EACH 1 12" Gate V alve EACH 5 12 "x8" Reducer EACH 1 8 11 M .J. Gate Valve EACH 8 6" M.J . Gate Valve EACH 3 12"x13 " M.J. Anchor Coupling EACH 6 8"xl3 " M .J. Anchor Coupling EACH 9 6"x13" M .J. Anchor Couoling EACH 8 12"x45 deg . Bend EACH 2 8"x22 .5 deg. Bend EACH 2 8"xl 1.25 deg. Bend EACH 1 6"x45 deg . Bend EACH 1 6"x22.5 deg . Bend EACH 1 6"xl 1.25 deg. Bend EACH 1 2" Blow Off Valve Assembly EACH 1 Connect to Existing Waterline EACH 3 Water Service l " Tvoe K Cooner Short Side (<20') EACH 1 Water Service 1.5" Type K Conner Short Side (<20') EACH 17 UnitP1ice 45 .00 40 .00 35 .00 27 .00 24.00 18.00 3.500.00 700.00 675.00 475 .00 400 .00 350 .00 2 200 .00 500 .00 1,250 .00 950.00 250.00 250 .00 250 .00 250 .00 250 .00 250.00 250 .00 250 .00 250 .00 1100.00 1,100 .00 800 .00 950 .00 26 Water Service 111 Type K Copper Short Side (>2 0') EACH 1 1250.00 27 Water Service 1.5" Tvoe K Cooner Short Side (>2 0') EACH 20 1,450 .00 12" Water System Subtotal 1 of2 Total 84,060 77,240 92.785 4,536 17,712 5,616 21,000 700 1,350 475 1 200 350 11000 500 10 000 2 850 1,500 2 250 2 000 500 500 250 250 250 250 1,100 3 300 800 16150 1,250 29 000 $390 724 Texas Statutory Payment Bond STA TE OF TEXAS COUNTY OF Texas Westfield Insurance Co. Westfield Group SM Westfield Center, OH 44251-5001 TEXAS STATUTORY PAYMENT BOND (Penalty of this bond must be 100% of Contract Amount) Bond Number 1525117 ~--------~---------- KNOW ALL MEN BY THESE PRESENTS: That Brazos Paving, Inc. (hereinafter called the Principal), as Principal, and WESTFIELD INSURANCE COMPANY, a corporation organized under the laws of the State of Ohio , a Corporate Surety authorized and admitted to do business in the State of Texas and licensed by the State of Texas to execute bonds as Surety , (hereinafter called the Surety), as Surety, are held and firmly bound unto Pebble Creek Land Company (hereinafter called the Obligee), in the penal sum of Three Hundred Nineteen Thousand Two Hundred Eighty & 05/100 ---------------------------Dollars($ 319,280.05 for the payment of which sum well and truly to be made , we bind ourselves, our heirs , administrators, executors, successors and assigns , jointly and severally, firmly by the presents . WHEREAS, the Principal has entered into a certain written contract with the Obligee, dated the _2_8t_h ___ _ day of January _ 2_0_1_5 ______ , a copy of which is hereto attached and made a part hereof, for Water Line Construction NOW, THEREFO RE, THE CONDITION OF THIS OBLIGATION IS SUCH, that ifthe said Principal shall pay all claimants supplying labor and material to him or a subcontractor in the prosecution of the work provided for in said contract , then this obligation shall be void; otherwise to remain in full force and effect. PROVIDED, H O WEVER, that this bond is executed pursuant to Chapter 2253 of the Texas Government Code and all liabilities on this bond shall be determined in accordance with the provisions thereof to the same extent as if it were copied at length herein. IN WITNESS WHEREOF, the said Principal and Surety have signed and sealed this instmment this _3_0t_h ______ day of Januray _2_0_15 ___ _ ISeai } Westfield Insurance Company Shanda Robinson , Attorney-in-fact ea! 805463 THIS POWER OF ATTORNEY SUPERCEDES ANY PREVIOUS POWER BEARING THIS SAME PO\\~R #AND ISSUED PRIOR TO 08/04/14, FOR ANY PERSON OR PERSONS NAMED BELOW . General Power of Attorney CERTIFIED COPY POWER NO. 4220702 01 Westfield Insurance Co. Westfield National Insurance Co. -Ohio Farmers Insurance Co. Westfield Center, Ohio Know All Men by These Presents, That WESTFIELD INSURANCE COMPANY, WESTFIELD NATIONAL INSURANCE COMPANY and OHIO FARMERS INSURANCE COM PANY, corporations, hereinafter referred t o individually as a ·company• and collectively as •compan ies: duly organized and existing under the laws of the State of Ohio, and having its principal office in Westfield Center, Medina County, Ohio, do by these presents make, constitute and appoint JAMES R. JACKSON , HERBERT R. BEHRINGER , SHERI L. PINCHBACK, SHANDA ROBINSON , VICTORIA EASTBURN , JOINTLY OR SEVERALLY of WACO and State of TX its true and lawful Attorney(s)-ln-Fact, with full power and authority hereby conferred in its name, place and stead , to execute, acknowledge and deliver any and all bonds, recognizances, undertakings, or other instruments or contracts of suretyship---- ----- - - - -- -- -- - - - - - - - - - - - --------- -- - - -- -• --- - - - - - - --- - - -- LIMITATION : THIS POWER OF ATTORNEY CANNOT BE USED TO EXECUTE NOTE GUARANTEE, MORTGAGE DEFICIENCY, MORTGAGE GUARANTEE , OR BANK DEPOSITORY BONDS. and to bind any of the Companies thereby as fully and to the same extent as if such bonds were signed by the President, sealed with the corporate seal of the applicable Company and duly attested by its Secretary, hereby ratifyi ng and confirm in g all that the said Attorney(s)-in-Fact may do in the premises. Sa id appointment is made under and by authority of the following res olution adopted by the Board of Directors of each of the WESTFIELD INSURANCE COMPANY, WESTFIELD NATIONAL INSURANCE COMPANY and O HIO FARMERS INSURANCE COMPANY: ·ae It Resolved, that the President, any Senior Executive, any Secretary or any Fidelity & Surety Operations Executive or other Executive shall be and is hereby vested with full power and authority to appoint any one or more suitable persons as Attorn ey(s)-in-Fact to represent and act for and on behalf of the Company subject to the followi ng provisions: The Attorney-In-Fact. may be given full power and authority for and in the name of and on behalf of the Company, to execute, ac knowledge and deli ver, any and all bonds, recognizances, contracts, agreements of indemnity and other conditional or obl igatory undertakings and any and all notices and documents canceling or terminating the Company's li ability thereunder, and any such Instruments so executed by any s uch Attorney-in-Fact shall be as binding upon the Company as if signed by the President and sealed and attested by the Corporate Secretary.• ·ae it Further Resolved, that the signature of any such designated person and the sea l of the Company heretofore or hereafter affixed to any power of attorney or any certifi cate relating thereto by facsimile, and any power of attorney or certificate beari ng facsimile signatures or facsimile seal shall be valid and binding upon the Company with respect to any bo nd or undertaki ng to which it is attached.· (Each adopted at a meeting held on February 8, 2000). In Witness Whereof, WES TFIEL D INSURANCE COMPANY, WESTFIELD NATIONAL INS URANC E COMPANY and OHIO FARME RS INSURANCE COMPANY have caused these presents to be signed by their National Surety Leader and Senior Executive and their corporate seals to be hereto affixed this 04th day of AUGUST A.D ., 2014 . ,...,. .... ...,.,,. ,,,,,"uo1,,,,,11 Corporate 1 -•'-UR.(""" ,.•'-<\ONA£. / '•, Seals J'..~ ';.··--... ~(l.f' '\ ,-'' ~\>;~··········~&~>- Affixed J!4fl ..,. "··Ct'"'\ f!]./ "· .. "P \ z,...1 \Q -~· .?,, ·'iS?!•t ~-1 :u::: ~0~ i ~i L.M.l.l '~ ~r-; SEAL Im; '~~-1~ ~~·-:0 = \ "'"·· ... '1" _.., "',, "':;. ~... /0 l .,, ...... _ ... ./ \,, ·· .............. · .. / State of Ohio ~ ,,,,,,,t,,,,~"'''''"''' County of Medina ss.: WESTFIELD INSURANCE COMPANY WESTFIELD NATIONAL INSURANCE COMPANY ::b=?~C Dennis P. Baus, National Surety Leader and Senior Executive On this 04th day of AUGUST A.O., 2014 , before me personally came Dennis P. Baus to me known, who, being by me duly sworn, did depose and say, that he resides in Wooster, Ohio; that he is National Surety Leader and Senior Executive of WESTFIELD INSURANCE COMPANY, WESTFIELD NAT IONAL INS URANCE COMPANY and OHIO FARMERS INSU RANCE COMPANY, the companies described in and which executed t he above instrument; that he knows the seals of said Companies; that the seals affixed to said instrument are such corporate sea ls ; that they were so affixed by order of the Boards of Directors of sai d Companies; and that he signed his name thereto by li ke order. Notarial Seal Affixed State of Ohio County of Medin a David A. Kotnik, Attorney at Law, Notary Public My Commission, Does Not Expire (Sec. 147.03 Oh io Revised Code) ss.: I, Frank A. Carrino, Secretary of WESTFIELD INSURANCE COMPANY, WESTF IEL D NATIONAL INSURANCE COMPANY and OHIO FARMERS INSURANCE COMPANY do hereby certify that the above and foregoi ng is a true and correct copy of a Power of Attorney, executed by said Companies, which is stili in full force and effect ; and ~um1e.rmore , the resolutions of the Board s of Directors , set out in the Power of Attorney are i n full fo rce and effect. In Witness Whereof, I have hereu nto se:t my hand ana Cii'~xed the seals of said Compan ies at Westfiel d Center, Oh io , this -3£)thday of Jl(U.i t ll~A.D., ""fr;.. · -. L.\)U.J\I .. "··~ •J •''"\tlt•11,,, ......... ,,q, '. • sUR.t .. ,,,_ · · ,,,•'':<;10N~l. / ···.,, ,.··~ ~ '·~,,, .. ~·~" .. -··-... ~c ... -.... ,.-_,1>-_ .......... :'\rQ;. -.. ..~c .. ., .. ';A.~"l>. ~ ,,. • v \. ... '\:"". o V I ~ ~·· ..... .,. J .. Y.··' ..,. "•.et~ /0/ ···."P\ i~··· '°' ~ "·. ;. ,.,. \o\ . "· .,, --~~"W"., ·s~ l~f S?!Jtl i• t!ff SE'H ·:~~ ;w.::"" ~11.~ ~ ~t L.M.l.lJ-OJ "r-: :Li.Lt :m: :,o: •:!If: .. ....:c, ·en · • • s..-it• ·•-\\'t.,\ _ ~ ~~··. ·/<f ~~·· lS4e .:~1 7 •. .-... ~ / 'ff' .Ji ~ ... --;, \, .••. ~ .,:: ~ •.. '9 ;,•• T ~ ~.. .:::::.:.;/............. '.. •.. .... ..... iiS.o,... ............ • ..... ... 'I. '"11,,, ····*···· ,,,........ ~,,,,,,, . .. . .,,. ........ .. ''11111,un''''' ''•••u••••"' Frank A. Carrino, Secretary BPOAC2 (combined) (06-02) CrTY or COLLEGE STATION Home of Texas A&M University' FOR OFFICE UCf .J'k(], CASE NO.: ~\~~Htl----~ DATE SUBMITTED: OZ· \ 0, l p TIME : 3~:5o S TAFF : Tf\.l.J _,___~~~~~~~~- PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your subm itta l. 0 New Project Submittal O Incomplete Project Submittal -documents needed to complete an application . Case No .: [g] Existing Project Submittal. Case No .: 14-900160 Project Name Pebble Creek Phase 70 Contact Name Jeff Robertson ~~~~~~~~~~~~~~~- Phone Number 979-693-3838 ~~~~~~~~~~~~~- We are transmitting the following for Planning & Development Services to re view and comment (check all that apply): 0 Comprehensive Plan Amendment 0 Rezoning Application 0 Conditional Use Permit 0 Preliminary Plan 0 Final Plat 0 Development Plat 0 Site Plan 0 Special District Site Plan 0 Special District Building I Sign 0 Landscape Plan 0 Non-Residential Architectural Standards 0 Irrigation Plan 0 Variance Request 0 Development Permit 0 Deve lopment Exaction Appeal 0 FEMA CLOMNCLOMR/LOMA/LOMR 0 Grading Plan 0 Other -Please specify below INFRASTRUCTURE AND ENGINEERING DOCUMENTS All infrastructure documents must be submitted as a complete set. The following are included in the complete set: 0 Comprehensive Plan Amendment 0 TxDOT Driveway Permit 0 TxDOT Utility Permit 0 Drainage Letter or Report 0 Fire Flow Analysis Oversize Participation Documents Special Instructions: 10/10 0 Waterline Construction Documents O Sewerline Construction Documents 0 Street Construction Documents 0 Easement Application 0 Other -Please specify Print Form CITY OF COLLEGE STATION Home oJTexas A&M Univmiry• OVERSIZE PARTICIPATION INFORMATION SHEET THIS SECTION TO BE COMPLETED BY APPLIC A NT P ROPERTY OWNER (S) : Pebbl e Cr eek Land Co mp an y (Names must be exactly as they app ear on the dee d} STREET ADDRESS : 5102 Ston ewa t er Dri ve Office Use Only : Tim e:. _________ , Dat e Submi tted:. ____ ____, St aff:. ________ _ CITY : Coll ege Sta ti o n STATE : Tx ZIP CODE : 77845 ALL LENDERS (Please furnish cop ies of all lien documents) : (Name and Ad dresses) IF OWNER IS A CORPORATION, PARTNERSHIP , OR JOINT VENTURE (also see #5 below): 1. Sta te of Incorpo ration /Registration : Texas 2 . Partne rs' Names (i f applicable) : Davis Yo ung 3 . Pe rson A uthorized to Sign : Dav is Yo un g (Name and T itle ) LEGAL DEPARTMENT MUST BE PROVIDED WITH THE FOLLOWING : ( Pl ease check items th at are attached ) [g] 1. A copy of a recent (with i n 90 days ) deed or titl e in surance po licy showing names of the grantors/owners . [g] 2. Fo r Unplatted property , a signed , sealed and dated metes and bounds descri ption and a diagram of the property show ing the location. D 3 . Fo r Platted property , a copy of the plat showing the lot , b lock , subd ivis ion and recording information . [g] 4. Corporate o r partnership owne rs must furn ish a copy of a corporate resolution or other proof of authority to sign on behalf of the corporation , partnership , or joint venture . [g] 5 . Na me , add ress and phone number of person who is to receive the oversize part ici pation . Davis Yo u ng , 5102 Stonewa t er Dri ve, Co ll ege St at io n, Texas 7784 5 Print Form ] l 26 4 25 23 Scale = 1: 7 49 (Feet) 2 -l 7 -<or') ( (oc.c ~ ~f 5 21 22 19~ 2~ 1 N 41 ° S1' 36 " E 49.10 2 N 27 ° S7' 44 " E 123 .33 3 N 62 ° 14 ' E 98.48 4 N so · 2s· 31 " E 1S0.44 s N s8 ° 38' 40 " E 93.29 6 N 70 ° 17' E 64 .82 7 N 67 ° 39' 20 " E 186 .18 8 N 68 ° 32' S8" E 291 .60 9 N 72 ° 32' 39" E 201 .84 10 N 62 ° 49 ' 37 " E 1 OS .22 11 N 3S 0 32' 18" E 21 .93 12 S3S0 31'31 "E220.78 13 S 42 ° 4S ' 01 " E 309.43 14 S 49 ° 43 ' 20 " E 114 .84 1S N 49 ° 44' 10" E , ch 444 .81 , r 905 L 16 S 39 ° 34' SS" E 116 .S6 17 S 7° 32' 17" W, ch 36.64 , r 25 R 18 S 30 ° 37' 24" E 60 .20 19 S 4S 0 S7'' E 267 .20 20 s 44 ° S8' S4" w 718 .91 21 s 27° 48' S4" w 536 .67 22 s 86 ° 48' S4 " w 711 .81 23 N 39 ° 34' SS" W 302 .62 24 s so · 2s· os " w 166 .1 o 2S N 39 ° 3S' 04" W 2003 .85 26 N so · 19· so" E 166 .18 27 S 39 ° 34' SS" E 1110 .76 CERTIFICATE OF CORPORATE RESOLUTION DATE: July 1, 2013 CORPORATION: PEBBLE CREEK LAND COMPANY PRESIDENT: DA VIS M. YOUNG DATE OF MEETING OF BOARD OF DIRECTORS: •J-c... ly \ I l v L3 ... I, DAVIS M. YOUNG, President of the corporation, certify the following facts: 1. The corporation is organized and operating under the laws of Texas, is qualified to do business here, and is in good standing. 2. No proceedings for forfeiture of the certificate of incorporation or for voluntary or involuntary dissolution of the corporation are pending. 3. Neither the articles of incorporation nor bylaws of the corporation limit the power of the Board of Directors to pass the resolution below. 4. The President of the corporation is the person authorized to make and sign this resolution. 5. The Secretary keeps the records and minutes of the proceedings of the Board of Directors of the corporation, and the resolution below is an accurate reproduction of the one made in those proceedings; it has not been altered, amended, rescinded, or repealed; and it is now in effect. 6. The resolution below was legally adopted on the date of the meeting of the Board of Directors, which was called and held in accordance with the law and the bylaws of the corporation, at which a quorum was present: "RESOLVED, that DA VIS M. YOUNG, President, be, and is hereby authorized, empowered, and directed to execute, acknowledge, and deliver on behalf of the Corporation, such contracts, assignments, affidavits, deeds, deeds of trust, financing statements, security agreements, and other instruments, containing any terms and conditions that he may, in his sole discretion, deem necessary or desirable pursuant to the terms the President determines to be in the Corporation's best interest; and the attestation by the Secretary of the Company and the affixation of the seal of the Company shall not be necessary." COMPANY that he executed the same for the purposes and consideration therein expressed, in the capacity therein stated and as the act and deed of said corporation. -s!- GIVEN UNDER MY HAND AND SEAL OF OFFICE this l --aay of July, 2013. Notary Public, State of Texas (J~~~~- C IT Y OF C OUEGE STATIO N Home ofTexM A&M Un ivmiry• Contract Description: Project Name: Name of Contractor: CONTRACT TOTAL VALUE: CONTRACT & AGREEMENT ROUTING FORM CONTRACT#: 15-1 SLf PROJECT#: 14-160 BID#: RFP: --- Participation Agreement for Public Improvements Pebble Creek Phase 70 Water Line Improvements Pebble Creek Land Company $ 47,870.00 Grant FundedD Yes [j] No~--~ If yes , what is the grant number:~! --~ Debarment Check D Yes D No [j] N/ A Section 3 Plan Incl. D Yes D No [j] N/A Davis Bacon Wages Used O Yes 0 No ~ N/A Buy America Required CJ Yes g No ~ N/A Transparency Report CJ1 Yes [bJ No [::J N/ A [j] NEW CONTRACT D RENEWAL# __ 0CHANGE ORDER# __ D OTHER ____ _ BUDGETARY AND FINANCIAL INFORMATION (Include number of bids solicited, number of bids received, funding source, budget vs. actual cost, summary tabulation) Wate r Fu nd FY 15 Conting ency Total Cost estimate for $419 ,3 39 .00 (Does not includes bo nd costs) {If required)* CRC Approval Date*: ___ _ Council Approval Date*: _____ Agenda Item No*: __ _ --Section to be completed by Risk and Purchasing Only- Insurance Certificates: Performance Bond: --- SIGNATURES RECOMMENDING APPROVAL DEPARTMENT DIRECTOR/ADMINISTERING CONTRACT LEGAL DEPARTMENT EXECUTIVE DIRECTOR, BUSINESS SERVICES APPROVED & EXECUTED CITY MANAGER MAYOR (if app lica ble) CITY SECRETARY (if applica bl e ) ---- _ Original(s) sent to CSO on __ Scanned into Laserfiche on __ _ Payment Bond: ___ _ DATE DATE DATE DATE DATE DATE _Original(s) sent to Fiscal on __ _ MBI McCLURE & BROWNE ENGINEERING/SURVEYING, INC. ~)II 1008 Woodcreek Dr., Surte 103 ·College Station , Tx. 77845 · (979) 693-3838 Engineer Reg . No. F-4 58 Survey Reg . No. 101033-00 November 6 , 2014 Mr. Alan Gibbs, PE City Engineer City of College Station College Station , Texas 77840 Re : Pebble Creek Phase 70 -Oversize Participation Request Dear Alan : I have analyzed the proposed water system for the Pebble Creek Phase 70 Subdivision considering only the flows generated from this property. This analysis has been performed in order to determine the required pipe sizes to serve only this development without offsite contributions . The data generated from this analysis can be used to justify that an 8 " line along Royal Adelade and Pebble Creek Parkway is the size that is required to serve this development. The cost difference between the 8 " and 12" water line is the cost shown on the attached estimate. As shown in Exhibit A , the 8 " line provides adequate flow and pressure for this development. A copy of the water model with the 12" line is included in Exhibit B, and a copy of the Engineer's Estimate for the difference between the two lines is included in Exhibit C. If you need additional information , please contact me at your convenience . ry . Robertson, P.E. ce President -Engineering F:\10 65 -Davis You ng\0019 -Pebble Creek Phase 70\Docs \O P Request\CoCS -Gibbs01 -OP Justification .doc • ~. FOR OFFICE USE ONLY CASE NO.: \£1. \Clo ta . \C, ',q DATE SUBMITTED : C ITY OF C OLlEGE S TATION Home o/Tocas A&M University • FINAL PLAT APPLICATION TIME: J : 3S STAFF : j/\(.. (Check one) D Minor ($700) D Amending ($700) IZ] Final ($932) D Vacating ($932) 0Replat ($932) Is this plat in the ET J? D Yes [8J No Is this plat Commercial D or Residential [g] MINIMUM SUBMITTAL REQUIREMENTS: [8] $700-$932 Final Plat Application Fee (see above). D $233 Waiver Request to Subdivision Regulations Fee (if applicable). [8] $600 (minimum) Development Permit Application I Public Infrastructure Review and Inspection Fee . Fee is 1 % of acceptable Engineer's Estimate for public infrastructure, $600 minimum (if fee is > $600 , the balance is due prior to the issuance of any plans or development permit). [8] Application completed in full. This application form provided by the City of College Station must be used and may not be adjusted or altered . Please attach pages if additional information is provided. [8] Six (6) folded copies of plat. (A signed mylar original must be submitted after approval.) [8] Two (2) copies of the grading , drainage, and erosion control plans with supporting drainage report . [8] Two (2) copies of the Public infrastructure plans and supporting documents (if applicable). D Copy of original deed restrictions/covenants for replats (if applicable). [8] Title report for property current within ninety (90) days or accompanied by a Nothing Further Certificate current within ninety (90) days. The report must include applicable information such as ownership, liens, encumbrances, etc. [8] Paid tax certificates from City of College Station, Brazos County and College Station l.S.D. [8] The attached Final Plat checklist with all items checked off or a brief explanation as to why they are not. NOTE: A mylar of the approved preliminary plan must be on file before a final plat application will be considered complete. If the mylar is submitted with the final plat application , it shall be considered a submittal for the preliminary plan project and processed and reviewed as such . Until the mylar has been confirmed by staff to be correct, the final plat application will be considered incomplete. Date of Optional Preapplication or Stormwater Management Conference NAME OF PROJECT Pebble Creek Phase 70 ADDRESS SPECIFIED LOCATION OF PROPOSED PLAT: Adjacent to Pebble Creek Parkway and Pebble Creek Phase 7C APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name Pebble Creek Land Company (Davis Young) E-mail davis.y@pebblecreektx.com Street Address 5102 Stonewater Loop City College Station Zip Code 77845 ------State Tx --------- Phone Number 979-690-0992 Fax Number ----------------- Revised 4/14 Pag e 1 of 9 PROPERTY OWNER'S INFORMATION (All owners must be identified . Please attach an additional sheet for multiple owners): Name Sa me as Applicant E-mail Street Address C ity State Zip Code Phone Number Fax Number ARCHITECT OR ENGINEER'S INFORMATION: Name McClure & Browne Engineering (Jeff Robertson) E-mail jeffr@mcclurebrowne .com Street Address 1008 Woodcreek C ity College Station Phone Number 693-3838 Zip Code 77845 ------- Fax Number ----------------~ Do any deed restrictions or covenants exist for this property? D Yes [8] No Is there a temporary blanket easement on this property? If so , please provide the Volume ____ and Page No. __ _ Total No . of Lots 84 ------R-0-W Acreage 14 .6 --------Total Acreage 55. 03 ---------- Exist ing Use _O_p_e_n ____________ _ Proposed Use Single Family Resi dential Number of Lots By Zon ing District 84 GS Average Acreage Of Each Residential Lot By Zon ing District: 0 .4 2 I GS Floodplain Acreage _3_.8 __________________________________ _ Is there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? IX Yes I No This information is necessary to help staff identify the appropriate standards to review the application and will be used to help determine if the application qualifies for -vesting to a previous ordinance. Notwithstanding any assertion made , vest ing is lim ited to that which is provided in Chapter 245 of the Texas Local Government Code or other appl icable law. Is t his application a conti nuation of a p roject that has received prior City platting approval(s) and you are requesting the application be reviewed under prev ious ordinance as applicable? IX Yes I No If yes , provide information regarding the first approved appl ication and any related subseque nt applicat ions (provide add itional sheets if necessary): Project Name: Preliminary Plan for Phase 7C and 7D Pebble Creek Subdivision C ity Project Number (if known): Date I T imeframe when submitted : Revised 4/14 Page 2 of 9 A statement addressing any differences between the Final Plat and Preliminary Plan (if applicable): Requested waiver to subdivision regulations and reason for same (if applicable): Regarding the waiver request, explain how: 1. There are special circumstances or conditions affecting the land involved such that strict application of the subdivision regulations will deprive the applicant of the reasonable use of his land . 2 . The waiver is necessary for the preservation and enjoyment of a substantial property right of the applicant. 3. The granting of the waiver will not be detrimental to the public health, safety , or welfare , or injurious to other property in the area , or to the City in administering subdivision regulations . 4 . The granting of the waiver will not have the effect of preventing the orderly subdivision of other land in the area in accordance with the provisions of the Unified Development Ordinance . Fee in lieu of sidewalk construction is being requested because of the following condition (if applicable): 1. I An alternative pedestrian way or multi-use path has been or will be provided outside the right-of-way ; 2 . I The presence of unique or unusual topographic, vegetative , or other natural conditions exist so that strict adherence to the sidewalk requirements of the UDO is not physically feas ible or is not in keeping with the purposes and goals of the UDO or the City's comprehensive Plan ; 3. I A cap ital improvement project is imminent that will include construction of the required sidewalk. Imminent shall mean the project is funded or projected to commence within twelve (12) months; 4 . I Existing streets constructed to rural section that are not identified on the Thoroughfare Plan with an estate I rural context ; 5. I When a sidewalk is required along a street where a multi -use path is shown on the Bicycle, Pedestrian, and Greenways Master Plan ; Revised 4/14 Page 3 of9 6. I I The proposed development is within an older residential · subdivision meeting the criteria in Platting and Replatting within Older Residential Subdivisions Section of the UDO; or 7 . I The proposed development contains frontage on a Freeway I Expressway as designated by Map 6 .6 , Thoroughfare Plan -Functional Classification , in the City's Comprehensive Plan. Detaile~ explanation of condition identified above : NOTE: A waiver to the sidewalk requirements and fee in lieu of sidewalk construction shall not be considered at the same time by the Planning & Zoning Commission . Requested Oversize Participation _____________________________ _ To~I Linear Footage of Proposed Public: ~Streets '1i 00 I Sidewalks ~35o Sanitary Sewer Lines Channels Storm Sewers 0 Bike Lanes I Paths ·on due prior to filing the Final Plat: ACREAGE : OR (date) Approved by Parks & Recreation Advisory Board ---- NOTE: DIGITAL COPY OF PLAT MUST BE SUBMITTED PRIOR TO FILING. The applicant has prepared this application and certifies that the facts stated herein and exhibits attached hereto are I true, correct, and complete. IF THIS APPLICATION IS FILED BY ANYONE OTHER THAN THE OWNER OF THE PROPERN, this application must be accompanied by a power of attorney statement from the owner. If there is more than one o1ner, all owners must sign the application or the power of attorney. If the owner is a company, the application must be ac · ompanied by proof of authority for the company's representative to sign the application on its behalf. LIEN HOLDERS dentified in the title report are also considered owners and the appropriate signatures must be provided as described a ove. Signature a Date { I Revised 4/14 Page4 of9 CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner · ertification: 1. No iork of any kind may start until a permit is issued . 2 . Thei permit may be revoked if any false statements are made herein . 3. If reyoked, all work must cease until permit is re-issued. 4 . Dev~' lopment shall not be used or occupied until a Certificate of Occupancy is issued . 5 . The permit will expire if no significant work is progressing within 24 months of issuance . 6. 0th r permits may be required to fulfill local, state, and federal requirements . Owner will obtain or show compliance with all necessary State and Federal Permits prior to construction including NOi and SWPPP. 7 . If required, Elevation Certificates will be provided with elevations certified during construction (forms at slab pre- pouP. and post construction . 8. Ow~er hereby gives consent to City representatives to make reasonable inspections required to verify 9 . ~~~b:':~~r mitigation is required, including detention ponds proposed as part of this project, it shall be designed and constructed first in the construction sequence of the project. 10. In adcordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to in~ure that all debris from construction, erosion, and sedimentation shall not be deposited in city streets, or exist~g drainage facilities . All development shall be in accordance with the plans and specifications submitted to and pproved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City f College Station shall apply . 11 . The i formation and conclusions contained in the attached plans and supporting documents will comply with the curre t requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Design Guidelines Technical Specifications, and Standard Details . All development has been designed in acco fidance with all applicable codes and ordinances of the City of College Station and State and Federal Regulations. 12. Relea~e of plans to (name or firm) is authorized for bidding purposes only.\ understand that final approval and release of plans and development for construction is contingent on contr~ctor signature on approved Development Permit. 13 . I, THE OWNER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FOR THE DEVELOPMENT PERMIT APPLICATION , ARE, TO THE BEST OF MY KNOWLEDGE, TRUE, AND ACCWRATE~ ~ I I / (£ Ll1> I I'-/ Prope~ Ow~ Date / I Engine1r Certification: 1. The project has been designed to ensure that stormwater mitigation , including detention ponds , proposed as part of the project will be constructed first in the construction sequence . 2. I willl obtain or can show compliance with all necessary Local , State and Federal Permits prior to construction inclJding NOi and SWPPP . Design will not preclude compliance with TPDES: i.e ., projects over 10 acres may requ 1 re a sedimentation basin . 3. The nformation and conclusions contained in the attached plans and supporting documents comply with the curr nt requirements of the City of College Station, Texas City Code, Chapter 13 and associated BCS Unified Desi n Guidelines . All development has been designed in accordance with all applicable codes and ordinances of th City of College Station and State and Federal Regulations . 4 . I, TH ENGINEER, AGREE TO AND CERTIFY THAT ALL STATEMENTS HEREIN, AND IN ATTACHMENTS FORITHE DEVELOPMENT PERMIT APPLICATION , ARE , TO THE BEST OF MY KNOWLEDGE , TRUE , AND AC CURA Date Revised 4/14 Page 5 of9 The following CERTIFICATIONS apply to development in Special Flood Hazard Areas. Required for Site Plans, Final Plats, Construction Plans, Fill/ Grading Permits, and Clearing Only Permits:* A . I, ...,,..\ft''f'fJ-) l _ BkJs &A certify, as demonstrated in the attached drainage study, that the alterations or development covered by this permit, shall not: (i) increase the Base Flood elevation; (ii) create additional areas of Special Flood Hazard Area; (iii) decrease the conveyance capacity to that part of the Special Flood Hazard Area that is not in the floodway and where the velocity of flow in the Base Flood event is greater than one foot per second . This area can also be approximated to be either areas within 100 feet of the boundary of the regulatory floodway or areas where the depth of from the BFE to natural ground is 18 inches or greater; (iv) reduce the Base Flood water storage volume to the part of the Special Flood Hazard Area that is beyond the floodway and conveyance area where the velocity of flow in the Base Flood is equal to and less than one foot per second without acceptable compensation as set forth in the City of College Station Code of Ordinances , Chapter 13 concerning encroachment into the Special Flood Hazard Area ; nor (v) increase Base Flood velocities . pted by ordinance in Section 5.11 .3a of Chapter 13 Code of Ordinances . Engi Date Initial D * If a platting-status exemption to this requirement is asserted, provide written justification under separate letter in lieu of certification . Required for Site Plans, Final Plats, Construction Plans, and Fill / Grading Permits: B. I, , certify to the following : (i) that any nonresidential or multi -family structure on or proposed to be on this site as part of this application is designed to prevent damage to the structure or its contents as a result of flooding from the 100-year storm . Engineer Date Additional certification for Floodway Encroachments: C. I, , certify that the construction , improvement , or fill covered by this permit shall not increase the base flood elevation . I will apply for a variance to the Zoning Board of Adjustments . Engineer Date Revise d 4/14 Pag e 6 of 9 Required for all projects proposing structures in Special Flood Hazard Area (Elevation Certificate required). Residential Structures: D. I, , certify that all new construction or any substantial improvement of any residential structure shall have the lowest floor, including all utilities, ductwork and any basement, at an elevation at least one foot above the Base Flood Elevation . Required Elevation Certificates will be provided with elevations certified during construction (forms at slab pre-pour) and post construction . Engineer I Surveyor Date Commercial Structures: E. I, , certify that all new construction or any substantial improvement ~~~~~~~~~~~~~~~~- of any commercia l, industrial , or other non-residential structure are designed to have the lowest floor , including all utilities, ductwork and basements , elevated at least one foot above the Base Flood Elevation Engineer I Surveyor Date OR I, , certify that the structure with its attendant util ity , ductwork , basement and sanitary facilities is designed to be flood-proofed so that the structure and utilities , ductwork , basement and sanitary facilities are designed to be watert ight and impermeable to the intrusion of water in all areas below the Base Flood Elevation , and shall resist the structural loads and buoyancy effects from the hydrostatic and hydrodynamic conditions . Requ i red Elevation Certificates will be provided with elevations certified during construction (forms at slab pre - pour) and post construction . Engineer I Surveyor Date Condit ions or comments as part of approval : Revised 4/14 Page 7 of 9 FINAL PLAT MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: (Requirements based on field suNey and marked by monuments and markers.) Drawn on 24" x 36" sheet to scale of 100' per inch . Vicinity map which includes enough of surrounding area to show general location of subject property in relationship to College Station and its City Limits . No scale required but include north arrow. [ZJ Title Block with the following information : ~ Name and address of subdivider, recorded owner, planner, engineer and surveyor. V [ZJ Proposed name of subdivision . (Subdivision name & street names will be approved through Brazos / County 911.) [ZJ Date of preparation . /BJ Engineer's scale in feet. /. V [ZJ Total area intended to be developed . V' Jl'xi North Arrow . V ~ Subdivision boundary indicated by heavy lines. If more than 1 sheet , an index sheet showing entire subdivision at a scale of 500 feet per inch or larger. [ZJ II applicable certifications based on the type of final plat. ~ ~ Ownership and Dedication V lZJ Surveyor and/or Engineer ;5JI City Engineer (anc:L.Gt~r, if a minor plat) V)~ Planning and Zoning Commission (delete if minor plat) V..0 )Brazos County Clerk ~Brazos County Commissioners Court Approval (ET J Plats only) .....-B-If submitting a replat where there are existing improvements, submit a survey of the subject property showing the improvements to ensure that no encroachments will be created . --B-If using private septic systems, add a general note on the plat that no private sewage facility may be installed on any lot in this subdivision without the issuance of a license by the Brazos County -[ZJ Health Unit under the provisions of the private facility regulations adopted by the Commissioner's Court of Brazos County, pursuant to the provisions of Section 21 .084 of the Texas Water Code . Location of the 100-Year Floodplain and floodway, if applicable , according to the most recent available data. Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data . Matches the approved preliminary plan or qualifies as minor amendments (UDO Section 3.3.E.2). The location and description with accurate dimensions, bearings or deflection angles and radii , area, center angle, degree of curvature, tangent distance and length of all curves for all of the following : (Show existing items that are intersecting or contiguous with the boundary of or forming a boundary with the subdivision , as well as, those within the subdivision). Existing Proposed [ZJ [ZJ Revised 4/14 Streets. Continuous or end in a cul-de-sac, stubbed out streets must end into a temp tu r n around unless they are shorter than ·100 feet. Public and private R.O .W. locations and widths . (All existing and proposed R.O .W .'s sufficient to meet Thoroughfare Plan .) Street offsets and/or intersection angles meet ordinance . Page 8 of9 Existing D ~ ~ ~ Proposed Alleys . Easements. A number or letter to identify each lot or site and each block (numbered sequentially). Parkland dedication/greenbelt area/park linkages. All proposed dedications must be reviewed by the Parks and Recreation Advisory Board and documentation of their recommendation provided prior to being scheduled for P&Z Commission consideration . ~ Construction documents for all public infrastructure drawn on 24" x 36" sheets and properly sealed by a Licensed Texas Professional Engineer that include the following : ~ Street , alley and sidewalk plans, profiles and sections . One sheet must show the overall street, alley and/or sidewalk layout of the subdivision . (may be combined with other utilities). ~ Sewer Design Report . ~ Sanitary sewer plan and profile showing depth and grades . One sheet must show the overall sewer layout of the subdivision . (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas .) ~ Water Design Report and/or Fire Flow Report. ~ Water line plan showing fire hydrants, valves , etc. with plan and profile lines showing depth and grades . One sheet must show the overall water layout of the subdivision . (Utilities of sufficient size/depth to meet the utility master plan and any future growth areas .) ~ Storm drainage system plan with contours , street profile, inlets , storm sewer and drainage channels , with profiles and sections . Drainage and runoff areas, and runoff based on 5, 10, 25 , 50 and 100 year rain intensity. Detailed drainage structure design , channel lining design & detention if used . One sheet must show the overall drainage layout of the subdivision . ~ Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E. D Letter of completion for public infrastructure or guarantee I surety in accordance with UDO Section 8.6 . ~ Drainage Report with a Technical Design Summary. ~ Erosion Control Plan (must be included in construction plans). ~ All off-site easements necessary for infrastructure construction must be shown on the final plat w ith a volume and page listed to indicate where the separate i nstrument easements were filed . Separate instrument easements must be provided in recordable form to the City prior to being scheduled for P&Z Commission consideration . ~ Are there impact fees associated with this development? D Yes ~ No Impact fees must be paid prior to building permit. ~ Will any construction occur in TxDOT rights -of-way? D Yes ~ No If yes, TxDOT permit must be submitted along with the construction documents. NOTE: 1. We will be requesting the corrected Final Plat to be submitted in digital form if available prior to filing Revi sed 4/14 the plat at the Courthouse . 2 . If the construction area is greater than 5 acres , EPA Notice of Intent (NOi) must be submitted prior to issuance of a development permit. Print Form Page 9 of 9 T h rou gh Tax Year 2013 TAX CERTIFICATE Certificate # 38 51 0 Issued By: KRISTEEN ROE , CTA PH# (979) 361-4470 BRAZOS COUNTY TAX ASSESSOR COLLECTOR 300 E. WM . J BRYAN PKWY BRYAN , TX 77803 Owner ID: 514475 100 .00% PEBBLE CREEK LAND CO 5102 STONEWATER LOOP COLLEGE STATION , TX 77845-6346 Pr operty Information Property ID : 353973 Geo ID : 020201 -0014-0041 Legal Acres : 75.3000 Legal Desc : A020201 , S W ROBERTSON (ICL), TRACT 14 .41 , 75 .3 ACRES , FUTURE PHS'S OF PEBBLE CREEK-EAST OF PEBBLE CREEK PKWY Situs: PEBBLE CREEK PKY , OBA : Exem tions : For Entities BRAZOS COUNTY CITY OF COLL. STAT. COLLEGE STATION ISO Value Information Improvement HS : 0 0 0 Improvement NHS : Land HS : Land NHS : Productiv ity Market: Productiv ity Use : Assessed Value 564 ,750 0 0 564,750 Current/Delinquent Taxes This is to certify that, after a careful check of the tax records of this office, the following delinquent taxes, penalties, interes and any known costs and expenses as provided by Tax Code §33.48, are due on the described property for the following taxing unit(s): Year Entity Totals: Taxable Tax Due 0.00 Disc./P&I 0 .00 Attorney Fee 0.00 Total Due 0.00 Effective Date: 06/13/2014 Total Due if paid by: 06/30/2014 0 .00 Tax Certificate Issued for: CITY OF COLL. STAT. BRAZOS COUNTY COLLEGE STATION ISD This certificate is is su ed on reaJ ~s.tate only. It does not include rrunerals and/or personaJ property. Taxes Paid in 2013 2,405 .60 2,753 .16 7,454 .70 If applicable, the above-described property has/is receiving special appraisal based on its use, and additional rollback taxes may become due based on the provisions of the special appraisal (Comptroller Rule 9.3040) or property omitted from the appraisal roll as described under Tax Code Section 25.21 is not included in this certificate [Tax Code Section 31.0S(b)]. Pursuant to Tax Code Section 31.08, if a person transfers property accompanied by a tax certificate that erroneously indicates that no delinquent taxes, penalties or interest are due a taxing unit on the property or that fails to include property because of its omission from an appraisal roll, the unit's tax lien on the property is extinguished and the purchaser of the property is absolved of liability to the unit for delinquent taxes, penalties or interest on the property or for taxes based on omitted property . The person who was liable for the tax for the ear the tax was im osed or the ro e was omitted remains ersonall liable for the tax and for an enalties or interest. A tax certificate issued through fraud or collusion is void. This certificate does not clear abuse of granted exemptions as defined in Section 11 .43 Paragraph(1) of the Texas Property Tax Code. ~ay B~~~it ;s Pending Date of Issue: Requested By : Fee Amount: Reference #: ~gmi ture of Authorized Officer of Collecting Office 06/13/2014 MCCLURE & BROWNE ENGINEER 10.00 Page: 1OF1 True Automation, Inc. Brazos County Abstract Company "More Than J 40 Years of Title Service " P.O. Box 4704 Phone: (979) 731-1900 3800 Cross Park Drive Bryan, Texas 77805-4704 Fax: (979) 731-1381 Bryan,Texas77802 BCAC GF NO. BC1402269 Title Report Prepared 6/13/2014 for McClure & Browne Engineering/Surveying, Inc. Jeffery L. Robertson, P.E. 1008 Woodcreek Drive, Ste. 103 College Station, TX 77845 "Experience Matters" Brazos County Abstract Company ''More Than 140 Years of Title Service" TITLE REPORT Effective Date: June 12 , 2014 at 8:00 am GFNO: BC1402269 LEGAL DESCRIPTION: B e ing all that certain lot, tract or parcel of land ly in g and being situated in Brazos County, Texas, situated in the S.W. ROBERTSON SURVEY , Abstract No . 202, College Station, Texas and being part of the 76.927 acre Tract 2-B described in the deed from Pebble Creek Development Company to Pebble Creek Land Company record ed in Volume 11447 , page 250, Official Records of Brazos County, Texas, and being more particularly described by metes and bounds as follows: BEGINNING: at a found 112-inch iron rod marking the common most southerly comer of Lots 9 and I 0 , Block 43, PEBBLE CREEK PHASE 7-A Subdivision as recorded in Volum e 3591, page 235, Official Records of Brazos County , Texas, said iron rod also being in the northeast lin e of the called 27.29 acre City of College Station tract de scribed in the deed recorded in Volume 10 29, page 13 , Official Records of Brazos County, Texas ; THENCE: along the southeasterly lin e of said PEBBLE CREEK PHASE 7-A Subdivision for the following eleven (11) calls : I) N 41 ° 5 1' 36" E for a distance of 49.10 feet to a found 112-inch iron rod for comer, 2) N 27° 57' 44" E for a di stance of 123 .3 3 feet to a found 1/2-inch iron rod for comer, 3) N 62 ° 14' 00" E for a distance of 98.48 feet to a fo und 112 -inch iron rod for comer, 4) N 50° 25' 31" E for a distance of 150.44 feet to a found I /2-inch iron rod for comer, 5) N 58 ° 38' 40" E for a distance of 93 .2 9 feet to a found 112-inch iron rod for comer, 6) N 70 ° 17' 00" E for a di stanc e of 64.82 feet to a fo und 1 /2-inch iron rod for comer, 7) N 67 ° 39' 20" E for a distance of 186 .18 feet to a found 1 /2 -inch iron rod for comer, 8) N 68 ° 32' 58" E for a distance of 291.60 feet to a found 112-inch iron rod for comer, 9) N 72 ° 32 ' 39 " E for a distance of201.84 feet to a found 1/2-inc h iron rod for comer, 10) N 62 ° 49' 37" E for a distance of 105.22 feet to a found 112-inch iron rod for comer, and 11) N 35° 32' 18" E for a distance of 2 1.93 feet to a found 112 -inch iron rod for comer, THENCE: through the interior of the said 76.927 acre Pebble Creek Land Company tract for the following eight (8) calls: l) S 35 ° 31' 31" E for a distance of 220. 78 feet to a found 1/2-inch iron rod for corner, 2) S 42° 45' 01" E for a distance of 309.43 feet to a found 1/2-inch iron rod for corner, 3) S 49 ° 43' 20" E for a distance of 114.84 feet to a found 1/2-inch iron rod for corner, 4) 449.42 feet in a right direction along the arc of a curve having a central angle of028° 27' l O", a radius of 905.00 feet , a tangent of229.44 feet and a long chord bearing N 49° 44' 1 O" E at a distance of 444.8 l feet for corner; 5) S 39° 34' 55" E for a distance of l l 6. l 8 feet to a found 1/2-inch iron rod for corner, 6) 41.50 feet in a right direction along the arc of a curve having a central angle of 095 ° 05' 46", a radius of25 .00 feet , a tangent of27.33 feet and a long chord bearing S 07 ° 06' 22" W at a distance of 36.90 feet for corner; 7) S 30° 37' 24" E for a distance of 60 .20 feet to a found 1/2-inch iron rod for corner, and 8) S 45° 00' 57" E for a distance of 267.20 feet to a found 1/2-inch iron rod in the east line of the said 76 .927 acre tract and the west line of the called 1265.370 acre City of College Station Lick Creek Park tract recorded in Volume 488 , page 756 , Deed Records of Brazos County , Texas, THENCE: along the common line of the said 76.927 acre tract and the said west line of the City of College Station Lick Creek Park tract for the following three (3) calls: I) S 44° 58' 54" W for a distance of718.91 feet to a found 1/2-inch iron rod for corner, 2) S 27 ° 48' 54" W for a distance of 536.67 feet to a found 1/2-inch iron rod for corner, and 3) S 86 ° 48' 54" W for a distance of 711.81 feet to a found l /2-inch iron rod marking the southwest corner of the said 76.927 acre Pebble Creek Land Company tract and the upper southeast corner of the beforesaid 27 .2 9 acre City of College Station tract (1029113); THENCE: N 39 ° 34' 55" W along the common line of the said 76 .927 acre and 27.29 acre tracts for a distance of 302.62 feet to a 1/2-inch iron rod set for corner; THENCE: S 50 ° 25' 05" W through the said 27 .29 acre City of College Station tract for a di stance of 166.10 feet to a found 1/2-inch iron rod marking the north corner of Lot 67 , Block 46 , PEBBLE CREEK PHAS E 9-D Subdivision as recorded in Volume 7655 , page 245 , Official Records of Brazos County, Tex as , the north ea st corner of St. Andrews Drive (based on a 60-foot width) and being in the southwest line of the said 2 7 .2 9 acre tract; THENCE: N 39° 35' 04" W along the before-mentioned southwest line , said line being common with the northeast lin e of PEBBLE CREEK PHASE 9-D Subdivi s ion , the northeast line of PEBBLE CREEK PHASE 9-E Subdivision as recorded in Volume 7311 , page 267 , Official Records of Brazo s County , Tex a s, and th e northeast line of PEBBLE CREEK PHASE 9-C Subdivision according to the Amendin g Plat recorded in Volume 11176 , page 190 , Official Records of Brazos County , Texas , for a di stance of2003 .85 feet to a found 1/2 - inch iron rod marking the north corner of said PEBBLE CREEK PHASE 9-C Subdivision , said iron rod also being in the southeast line of PEBBLE CREEK PHASE 4-B Subdivision as recorded in Volume 2324, page 199, Official Records of Brazos County , Texas; THENCE: N 50 ° 19' 50" E along the said southeast line of PEBBLE CREEK PHASE 4-B for a distance of 166.18 feet to a found 1/2-inch iron rod marking the west comer of Lot Block, of said PEBBLE CREEK PHASE 7-A Subdivision ; THENCE: S 39° 34' 55" E along the southwest line of said PHASE 7-A for a distance of 1110.76 feet to the POINT OF BEGINNING and containing 55.025 acres of land, more or less . NOTE -This Company does not represent that the above acreage or square footage calculations are correct. TITLE APPEARS TO BE VESTED IN: Pebble Creek Land Company by Warranty Deed from Pebble Creek Development Company, dated June 30, 2013 , recorded in Volume 1144 7, page 250 , Official Records of Brazos County , Texas. SUBJECT TO: LIENS: Deed of Trust with Security Agreement and Assignments dated July 15 , 2013 , executed by Pebble Creek Land Company to Tom F. Maynard, Trustee , securing one note of even date payable to Commerce National Bank, a branch of Lubbock National Bank, in the principal amount of $2 ,500 ,000 .00, recorded in Volume 11481 , page 78 , Official Records of Brazos County , Texas. ABSTRACTS OF JUDGMENTS/FEDERAL AND/OR STATE LIENS: NONE OF RECORD EASEMENTS: Right-of-Way Easement from E.S . Wickes to Humble Pipeline Company dated July 7, 1919 , recorded in Volume 48 , page 614 , Deed Records of Brazos County , Texas . Easement from W.R. McCullough , Trustee to the City of Bryan , dated June 8, 1938 , recorded in Volume 98, page 83 , Deed Records of Brazos County , Texas . Easement from J.E . Marsh, et al to Gulf States Utilities , dated April 1, 1947 , recorded in Volume 129, page 496, Deed Records of Brazos County , Texas. Easement from C. Edgar Jones to Gulf State Utilities , dated May 20, 1947 , recorded in Volume 130, page 152, Deed Records of Brazos County, Texas. Right-of-Way Easement from Kenneth M. Morris , Trustee to Producers Gas Company dated June 1, 1978 , recorded in Volume 402 , page 89 , Deed Records of Brazos County, Texas. Easement from Kenneth M. Morris to Clajon Gas Company , dated January 27, I 981 , recorded in Volume 473, page 65 , Deed Records of Brazos County , Texas . Easement from W .D . Fitch to City of College Station , Texas, dated August 10, 1984 , recorded in Volume 713 , page 687 , Official Records of Brazos County , Texas . Right-of-Way Easement from J.E. Marsh et ux to The City of Bryan, dated August 27 , 1941 , recorded December 27 , 1995 in Volume 2504 , page 83 , Official Records of Brazos County , Texas. (Blanket). OUTSTANDING MINERALS AND/OR ROY AL TIES: Mineral reservation in Deed from Ed. S. Wickes , et al to J. E. Marsh , dated April 28 , 1940 , recorded in Volume 103 , page 279 , Deed Records of Brazos County , Texas. Title to this reservation has not been traced subsequent to the date of the above-cited instrument. Mineral reservation in Deed from C. C . Hedges , et al to J . H . Stockton , dated January 2 , 1948 , recorded in Volume 133 , page 301 , Deed Records of Brazos County , Tex as. Title to this reservation has not been traced subsequent to the date of the above-cited instrument. Royalty reservation in Deed from J.E. Marsh , et ux to Henry B. Clay, dated November 30 , 1967 , recorded in Volume 266 , page 238 , Deed Records of Brazos County , Texas. Title to this reservation has not been traced subsequent to the date of the above-cited instrument. Royal ty Deed from Grace H. Marsh to Louise M. Reeves , Trustee, dated December 30 , 198 I , recorded in Volume 504 , page 677 and corrected in Volume 504 , page 681 , Deed Records of Brazos County , Texas . Title to this ro yalty interest has not been investigated subsequent to the date of the above-cited instrument. Mineral Deed from Kenneth M . Morris , Trustee to Howard L.Terry , et al , dated March 19 , I 991 , recorded in Volume 1252 , page 211 , Official Records of Brazos County , Texas. Title to this mineral interest has not been traced subsequent to the date of the above-cited instrument. OIL & GAS LEASES: Estate created by Oil and Gas Leases from Vernon F. Runnels, et al to Ameritex Minerals , Inc ., dated May 8, 1990 , recorded in Volume 1192 , page 551 , Volume 1192 , page 554, Volume 1193 , page 783 and Volume 1194, page 209 , Official Records of Brazos County , Texas; and as ratified in instruments recorded in Volume 1252 , pages 216 , 218 , 220 , 222 , 224 , 226 and 228 , Official Records of Brazos County, Texas. Title to these leases ha s not been traced subsequent to the date of the above-cited in struments . Estate created by Oil and Gas Leases from Valerie Buckner, et al to W.K. Walker & Associates , Inc., dated August 1993, recorded in Volume 1885 , page 283 ; Volume 1886 , page 32 ; Volume 1877 , pages 104 and 106 ; Volume 1879 , page 41; Volume 1890 , pages 16 and 18 and Volume 1926 , pages 244 , 246 and 248 , Official Records of Brazos County , Texas. Title to these leases ha s not been traced subsequent to the date of the above-cited instruments. Estate created by Oil and Gas Leases from H. L. Terry , et al to RME Petroleum Company, dated May and June, 2001 , recorded in Volume 4188 , page 81 , Volume 4208 , pages 143 , 147 , 151 and 155 , Volume 4218 , pages 190 and 194 , and Volume 4231 , page 319 , Official Records of Brazos County , Texas. Title to this lease has not been traced subsequent to the date of the above-cited instrument. Estate created by Memorandums of Oil and Gas Leases from 2316 Minerals , Ltd., et al to Anadarko E&P Onshore LLC , dated July , August and September, 2013 , recorded May 6, 2014 in Volume 11998, pages 90 , 92 , 94 , 96 , 98 , 100 , 102 , I 04 , I 06 , I 08 , 110 , 112 , I 14 and 116 , Official Records of Brazos County , Texas. Title to said leases has not been traced subsequent to the date of the above-cited instruments. RESTRICTIONS OF RECORD: NONE OF RECORD TAXES/ ASSESSMENTS: NONE REQUESTED MISCELLANEOUS: All lease s, grants , ex ceptions or reservation s of coal , lignite , oil , gas and other minerals , together with all rights, privileges and immunities relating thereto , appearing in the Public Record s, whether listed or not. There may be lea ses , grants , exceptions or re servation s of mineral interests that are not listed . TIDS TITLE REPORT IS ISSUED WITH THE EXPRESS UNDERSTANDING, EVIDENCED BY THE ACCEPTANCE OF SAME THAT THE UNDERSIGNED, Brazos County Abstract Company DOES NOT UNDERTAKE HEREIN TO GIVE OR EXPRESS ANY OPINION AS TO THE VALIDITY OF THE TITLE TO THE PROPERTY ABOVE DESCRIBED, NOR AS TO THE VALIDITY OF ANY OF THE INSTRUMENTS REPORTED HEREIN, INCLUDING THE PURPORTED DEED(S) ESTABLISIDNG THE RECORD OWNER(S) CITED ABOVE, BUT IS SIMPLY REPORTING BRIEFLY HEREIN AS TO THE INSTRUMENTS FOUND OF RECORD PERTAINING TO SAID PROPERTY, AND IT IS EXPRESSLY UNDERSTOOD AND AGREED THAT TIDS TITLE REPORT IS NEITHER A GUARANTY NORW ARRANTY OF THE TITLE. BY ACCEPTANCE OF TIDS TITLE REPORT IT IS UNDERSTOOD THAT THE LIABILITY OF THE ISSUER HEREOF IS EXPRESSLY LIMITED TO THE ACTUAL MONET ARY CONSIDERATION PAID FOR SAID REPORT BY McClure & Browne Engineering/Surveying, Inc .. THIS SEARCH HAS BEEN LIMITED TO THE ABOVE MATTERS AND THE ABOVE TIME PERIOD; AND WE HA VE NOT SEARCHED FOR, NOR HA VE REFLECTED HEREIN, ANY EXAMINATION AS TOT AX SUITS, SPECIAL ASSESSMENTS, CONFLICTS OR OTHER INSTRUMENTS WIDCH MAY AFFECT TITLE TO THE SUBJECT PROPERTY. IF TITLE INSURANCE COVERAGE, WIDCH IS NOT PROVIDED BY TIDS REPORT, IS NEEDED, SAID COVERAGE IS AVAILABLE THROUGH THE APPLICABLE PROMULGATED POLICY(IES), AND AT A SPECIFIED RATE PREMIUM. Brazos County Abstract Company BY: Please direct inquiries to: Li sa Kemp Brazos County Abstract Company "More Than 140 Years of Title Service " P.O. Box 4704 Phone: (979) 731-1900 3800 Cross Park Drive Bryan, Texas 77805-4704 Fax: (979) 731-1381 Bryan,Texas77802 BCAC GF NO. BC1402269 Title Report Prepared 6/13/2014 for McClure & Browne Engineering/Surveying, Inc. Jeffery L. Robertson, P.E. 1008 Woodcreek Drive, Ste. 103 College Station, TX 77845 "Experience Matters " Brazos County Abstract Company "More Than 140 Years of Title Service" TITLE REPORT Effective Date: June 12, 2014 at 8:00 am GFNO: BC1402269 LEGAL DESCRIPTION: Being all that certain lot , tract or parcel of land lying and being situated in Brazos County , Texas, situated in the S .W. ROBERTSON SURVEY, Abstract No. 202 , College Station , Texas and being part of the 76.927 acre Tract 2-B described in the deed from Pebble Creek Development Company to Pebble Creek Land Company recorded in Volume 11447 , page 250 , Official Records of Brazos County , Texas, and being more particularly described by metes and bounds as follows: BEGINNING: at a found 112-inch iron rod marking the common most southerly comer of Lots 9 and 10 , Block 43 , PEBBLE CREEK PHASE 7-A Subdivi sion as recorded in Volume 3591 , page 235 , Official Records of Brazos County , Texas, said iron rod also being in the northeast lin e of the called 27.29 acre City of College Station tract described in the deed recorded in Volume 1029 , page 13 , Official Records of Brazos County, Texas ; THENCE: along the southeasterly lin e of said PEBBLE CREEK PHASE 7-A Subdivision for the fo llowin g eleven (11) calls: 1) N 41° 51' 36" E for a distance of 49 .10 feet to a found I /2-inch iron rod for comer, 2) N 27 ° 57' 44" E for a distance of 123 .33 feet to a found 1/2-inch iron rod for corner, 3) N 62 ° 14' 00" E for a distance of 98.48 feet to a found 1 /2-inch iron rod for comer, 4) N 50° 25' 31" E for a distance of 150.44 feet to a found 1/2-inch iron rod for corner, 5) N 58 ° 38' 40" E for a distance of93.29 feet to a found 1/2-inch iron rod for corner, 6) N 70 ° 17' 00" E for a distance of 64.82 feet to a found 1/2-inch iron rod for corner, 7) N 67 ° 39' 20" E for a distance of 186.18 feet to a found 1/2-inch iron rod for corner, 8) N 68 ° 32' 58" E for a distance of 291 .60 feet to a found 112-inch iron rod for corner, 9) N 72 ° 32' 39" E for a distance of 201.84 feet to a found 1/2-inch iron rod for corner, 10) N 62 ° 49' 37" E for a distance of 105.22 feet to a found 112-inch iron rod for corner, and 11) N 35 ° 32' 18" E for a distance of 21.93 feet to a found 1 /2-inch iron rod for comer, THENCE: through the interior of the said 76.927 acre Pebble Creek Land Company tract for the following eight (8) calls: 1) S 35 ° 31' 31" E for a distance of 220 . 78 feet to a found 1 /2-inch iron rod for comer, 2) S 42° 45' 01" E for a distance of 309.43 feet to a found 112-inch iron rod for comer, 3) S 49 ° 43' 20" E for a distance of 114 .84 feet to a found 112-inch iron rod for comer, 4) 449.42 feet in a right direction along the arc of a curve having a central angle of 028 ° 27' 1 O", a radius of 905.00 feet , a tangent of 229.44 feet and a long chord bearing N 49 ° 44' 1 O" Eat a distance of 444.81 feet for comer; 5) S 39° 34' 55" E for a distance of 116 .18 feet to a found 1/2-inch iron rod for comer, 6) 41.50 feet in a right direction along the arc of a curve having a central angle of 095 ° 05' 46", a radius of25.00 feet , a tangent of 27.33 feet and a long chord bearing S 07 ° 06' 22" Wat a distance of 36.90 feet for comer; 7) S 30 ° 37' 24" E for a distance of 60.20 feet to a found I /2-inch iron rod for comer, and 8) S 45° 00' 57'' E for a distance of267.20 feet to a found 1/2-inch iron rod in the east line of the said 76.927 acre tract and the west line of the called 1265 .370 acre City of College Station Lick Creek Park tract recorded in Volume 488 , page 756 , Deed Records of Brazos County, Texas, THENCE: along the common line of the said 76.927 acre tract and the said west line of the City of College Station Lick Creek Park tract for the following three (3) calls: 1) S 44 ° 58' 54" W for a distance of 718.91 feet to a found l/2-inch iron rod for comer, 2) S 27 ° 48' 54" W for a distance of 536.67 feet to a found 112-inch iron rod for comer, and 3) S 86 ° 48' 54" W for a distance of 711.81 feet to a found 112-inch iron rod marking the southwest comer of the said 76.927 acre Pebble Creek Land Company tract and the upper southeast comer of the beforesaid 27 .29 acre City of College Station tract (I 029/13); THENCE: N 39° 34' 55" W along the common line of the said 76.927 acre and 27.29 acre tracts for a distance of 302.62 feet to a l/2-inch iron rod set for comer; THENCE: S 50 ° 25' 05" W through the said 27.29 acre City of College Station tract for a distance of 166.10 feet to a found 1/2-inch iron rod marking the north corner of Lot 67 , Block 46 , PEBBLE CREEK PHASE 9-D Subdivision as recorded in Volume 7655 , page 245 , Official Records of Brazos County, Texas, the northeast corner of St. Andrews Drive (based on a 60-foot width) and being in the southwest line of the said 27 .29 acre tract; THENCE: N 39° 35' 04" W along the before-mentioned southwest line , said line being common with the northeast line of PEBBLE CREEK PHASE 9-D Subdivision, the northeast line of PEBBLE CREEK PHASE 9-E Subdivision as recorded in Volume 7311 , page 267 , Official Records of Brazos County , Texas, and the northeast line of PEBBLE CREEK PHASE 9-C Subdivision according to the Amending Plat recorded in Volume 11176, page 190 , Official Records of Brazos County , Texas , for a distance of 2003.85 feet to a found 112 - inch iron rod marking the north comer of said PEBBLE CREEK PHASE 9-C Subdivision, said iron rod also being in the southeast line of PEBBLE CREEK PHASE 4-B Subdivision as recorded in Volume 2324 , page 199 , Official Records of Brazos County, Texas; THENCE: N 50° 19' 50" E along the said southeast line of PEBBLE CREEK PHASE 4-B for a distance of 166.18 feet to a found 1 /2-inch iron rod marking the west comer of Lot Block, of said PEBBLE CREEK PHASE 7-A Subdivision; THENCE: S 39° 34' 55" E along the southwest line of said PHASE 7-A for a distance of 1110.76 feet to the POINT OF BEGINNING and containing 55 .025 acres of land , more or less . NOTE -This Company does not represent that the above acreage or square footage calculations are correct. TITLE APPEARS TO BE VESTED IN: Pebble Creek Land Company by Warranty Deed from Pebble Creek Development Company , dated June 30 , 2013 , recorded in Volume 11447 , page 250 , Official Records of Brazos County , Texas. SUBJECT TO: LIENS: Deed of Trust with Security Agreement and Assignments dated July 15 , 2013 , executed by Pebble Creek Land Company to Tom F. Maynard , Trustee, securing one note of even date payable to Commerce National Bank, a branch of Lubbock National Bank, in the principal amount of $2 ,500 ,000 .00 , recorded in Volume 11481 , page 78 , Official Records of Brazos County , Texas . ABSTRACTS OF JUDGMENTS/FEDERAL AND/OR STA TE LIENS: NONE OF RECORD EASEMENTS: Right-of-Way Easement from E.S. Wickes to Humble Pipeline Company dated July 7 , 1919 , recorded in Volume 48 , page 614 , Deed Records of Brazos County , Te xas . Easement from W.R. McCullough , Trustee to the City of Bryan , dated June 8, 1938 , recorded in Volume 98 , page 83 , Deed Records of Brazos County, Texas . Easement from J .E. Marsh , et al to Gulf States Utilities , dated Apri l 1, 1947 , recorded in Volume 129 , page 496, Deed Records of Brazos County , Texas. Easement from C. Edgar Jones to Gulf State Utilities, dated May 20, 1947 , recorded in Volume 130, page 152 , Deed Records of Brazos County , Texas. Right-of-Way Easement from Kenneth M . Morris , Trustee to Producers Gas Company dated June 1, 1978 , recorded in Volume 402 , page 89, Deed Records of Brazos County, Texas. Easement from Kenneth M. Morris to Clajon Gas Company , dated January 27 , 1981 , recorded in Volume 473 , page 65 , Deed Records of Brazos County, Texas . Easement from W.D . Fitch to City of College Station , Texas, dated August 10 , 1984 , recorded in Volume 713, page 687 , Official Records of Brazos County , Texas. Right-of-Way Easement from J.E. Marsh et ux to The City of Bryan , dated August 27 , 1941 , recorded December 27 , 1995 in Volume 2504, page 83 , Official Records of Brazos County , Texas. (Blanket). OUTSTANDING MINERALS AND/OR ROY AL TIES: Mineral reservation in Deed from Ed. S. Wickes , et al to J . E. Marsh , dated April 28 , 1940 , recorded in Volume 103, page 279 , Deed Records of Brazos County, Texas. Title to this reservation has not been traced subsequent to the date of the above-cited instrument. Mineral reservation in Deed from C. C . Hedges , et al to J. H. Stockton, dated January 2 , 1948 , recorded in Volume 133 , page 301 , Deed Records of Brazos County , Texas. Title to thi s reservation has not been traced subsequent to the date of the above-cited instrument. Royalty reservation in Deed from J. E. Marsh , et ux to Henry B. Clay, dated November 30 , 1967 , recorded in Volume 266 , page 238 , Deed Records of Brazos County , Texas. Title to thi s reservation has not been traced subsequent to the date of the above-cited instrument. Royalty Deed from Grace H . Marsh to Louise M . Reeve s, Trustee, dated December 30 , 1981 , recorded in Volume 504 , page 677 and corrected in Volume 504 , page 681 , Deed Records of Brazos County , Texas. Title to this royalty interest has not been investigated sub sequent to the date of the above-cited instrument. Mineral Deed from Kenneth M . Morris , Trustee to Howard L.Terry , et al , dated March 19 , 1991 , recorded in Volume 1252 , page 211 , Official Records of Brazos County, Texas . Title to this mineral interest has not been traced subsequent to the date of the above-cited instrument. OIL & GAS LEASES: Estate created by Oil and Gas Leases from Vernon F. Runnels , et a l to Ameritex Minerals , Inc., dated May 8, 1990 , recorded in Volume 1192 , page 551 , Volume 1 192 , page 554 , Volume 1193 , page 783 and Volum e 1194 , page 209, Official Records of Brazos County, Texas; and as ratified in instruments recorded in Volume 1252 , pages 216, 218 , 220, 222 , 224, 226 and 228 , Official Records of Brazos County, Texas . Title to these leases has not been traced subsequent to the date of the above-cited instruments. Estate created by Oil and Gas Leases from Valerie Buckner, et al to W.K. Walker & Associates, Inc., dated August 1993 , recorded in Volume 1885 , page 283; Volum e 1886 , page 32; Volume 1877 , pages 104 and 106; Volume 1879 , page 41 ; Volume 1890, pages 16 and 18 and Volume 1926 , pages 244, 246 and 248, Official Records of Brazos County, Texas. Title to these leases has not been traced subsequent to the date of the above-cited instruments . Estate created by Oil and Gas Leases from H. L. Terry , et al to RME Petroleum Company, dated May and June , 2001, recorded in Volume 4188, page 81 , Volume 4208 , pages 143 , 147 , 151 and 155 , Volume 4218 , pages 190 and 194 , and Volume 4231 , page 319 , Official Records of Brazos County, Texas. Title to this lease has not been traced subsequent to the date of the above-cited instrument. Estate created by Memorandums of Oil and Gas Leases from 2316 Minerals , Ltd., et al to Anadarko E&P Onshore LLC, dated July , August and September, 2013 , recorded May 6, 2014 in Volume 11998, pages 90, 92 , 94, 96 , 98, 100 , l 02 , 104 , 106 , 108 , 110 , 112 , 114 and 116 , Official Records of Brazos County, Texas. Title to said leases has not been traced subsequent to the date of the above-cited instruments . RESTRICTIONS OF RECORD: NONE OF RECORD TAXES/ ASSESSMENTS: NONE REQUESTED MISCELLANEOUS: All leases , grants , exce ptions or re servations of coal , lignite , oil , gas and other mineral s, together with a ll rights , privileges and immunities relating thereto , appearing in the Public Records , whether listed or not. There may be leases , grants , exceptions or reservations of mineral interests that are not listed . TIDS TITLE REPORT IS ISSUED WITH THE EXPRESS UNDERSTANDING, EVIDENCED BY THE ACCEPTANCE OF SAME THAT THE UNDERSIGNED, Brazos County Abstract Company DOES NOT UNDERTAKE HEREIN TO GIVE OR EXPRESS ANY OPINION AS TO THE VALIDITY OF THE TITLE TO THE PROPERTY ABOVE DESCRIBED, NOR AS TO THE VALIDITY OF ANY OF THE INSTRUMENTS REPORTED HEREIN, INCLUDING THE PURPORTED DEED(S) EST ABLISIDNG THE RECORD OWNER(S) CITED ABOVE, BUT IS SIMPLY REPORTING BRIEFLY HEREIN AS TO THE INSTRUMENTS FOUND OF RECORD PERTAINING TO SAID PROPERTY, AND IT IS EXPRESSLY UNDERSTOOD AND AGREED THAT TIDS TITLE REPORT IS NEITHER A GUARANTY NORW ARRANTY OF THE TITLE. BY ACCEPTANCE OF TIDS TITLE REPORT IT IS UNDERSTOOD THAT THE LIABILITY OF THE ISSUER HEREOF IS EXPRESSLY LIMITED TO THE ACTUAL MONET ARY CONSIDERATION PAID FOR SAID REPORT BY McClure & Browne Engineering/Surveying, Inc .. THIS SEARCH HAS BEEN LIMITED TO THE ABOVE MATTERS AND THE ABOVE TIME PERIOD; AND WE HA VE NOT SEARCHED FOR, NOR HA VE REFLECTED HEREIN, ANY EXAMINATION AS TO TAX SUITS, SPECIAL ASSESSMENTS, CONFLICTS OR OTHER INSTRUMENTS WIDCH MAY AFFECT TITLE TO THE SUBJECT PROPERTY. IF TITLE INSURANCE COVERAGE, WIDCH IS NOT PROVIDED BY TIDS REPORT, IS NEEDED, SAID COVERAGE IS AVAILABLE THROUGH THE APPLICABLE PROMULGATED POLICY(IES), AND AT A SPECIFIED RATE PREMIUM. Brazos County Abstract Company Please direct inquiries to: Lisa Kemp • DEVELOPMENT PERMIT PERMIT NO . 14-160 C rTY OF COLLEGE STATION Pl.1 •111int & llnvl;;pmnit .Srrii...., FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: A020201 (Pebble Creek Ph 7D) S W Robertson (ICL) TRACT14.41 DATE OF ISSUE: 12/19/2014 OWNER: Pebble Creek Land Company (Davis Young) 5102 Stonewater Loop College Station , TX 77845 SITE ADDRESS: Next to Pebble Creek Pky and Pebble Creek 7C DRAINAGE BASIN: Alum Creek VALID FOR 24 MONTHS CONTRACTOR: TYPE OF DEVELOPMENT: Full Development Permit CONDITIONS: 1. No work beyond limits covered in permit is authorized. 2. The permit may be revoked if any false statements are made herein . If revoked , all work must cease until permit is re- issued . 3. The permit w ill expire if no significant work is progressing within 24 months of issuance . 4. Other permits may have been required to fulfill local , state and federal requirements. Construction will be in compliance ·with all necessary State and Federal Permits. 5. Stormwater mitigation , including detention ponds will be constructed first in the construction sequence of the project. 6. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that all debris from construction , erosion, and sedimentation shall not be deposited in city streets , or existing drainage facilities . Construction Site Notice or Notice of Intent (NOi) along with Stormwater Pollution Prevention Plan (SWP3) will be kept and maintained on-site during construction as per TPDES permitting requirements . If it is determined that the prescribed erosion control measures are ineffective to retain all sediment on-site , it is the Contractor 's responsibility to implement measures that will meet City , State, and Federal requirements . 7. All disturbed areas will be re-vegetated prior to Letter of Completion or Certificate of Occupancy . 8. All trees req 'uired to be protected as part of the landscape plan must be completely barricaded in accordance with the Landscaping and Tree Protection Section of the City 's Unified Development Ordinance , prior to any operations of this permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and required to remain is strictly prohibited. The disposal of any waste material such as , but not limited to , paint, oil , solvents, asphalt , concrete , mortar, or other harmful liquids or materials within the drip line of any tree required to remain is also prohibited. 9. All construction .shall be in accordance with the stamped approved plans and specifications for the above-named project and all of the codes and ordinances of the City of College Station, as well as State and Federal Regulations that apply . Only those deviations from BCS Unified Design Guidelines , Specifications and Details specifically requested a~d approved will be allowed . 1 O. Special Conditions : No Construction on the waterlines until OP has been finalized . I, l~ /V/~/(k; [{ , the Contractor, hereby agree to comply with all conditions herein . t c~ Phone number I hereby grant this permit for development. Contact f>14e / ~t'fe m -tG 71 I the Public Works Inspector assigned to this project 24 hours prior to beginning construction for scheduling required Inspections . ~ 1i-19-<oiy City ~~ntative Date TEXAS COMMISSION ON ENVIRONMENTAL QUALI1Y Texas Pollutant Discharge Elimination System Stormwater Construction General Permit The Notice of Intent (NOI) for the facility listed below was received on June 26, 2013. The intent to discharge stormwater associated with construction activity under the terms and conditions imposed by the Texas Pollutant Discharge Elimination System (TPDES) stormwater construction general permit TXR150000 is acknowledged. Your facility's TPDES construction stormwater general permit number is: TXR15XL46 Coverage Effective: June 26, 2013 TCEQ's stormwater construction general permit requires certain stormwater pollution prevention and control measures, possible monitoring and reporting, and periodic inspections . Among the conditions and requirements of this permit, you must have prepared and implemented a stormwater pollution prevention plan (SWP3) that is tailored to your construction site. As a facility authorized to discharge under the stormwater construction general permit, all terms and conditions must be complied with to maintain coverage and avoid possible penalties. Project/Site Information: RN100834282 PEBBLE CREEK SUBDIVISION PHASE 7C&7D OFF OF HWY 6 SOUTH EXIT WILLIAM D FITCH PARKWAY. TAKE A LEFT ON WILLIAM D FITCH PARKWAY. TAKE A RIGHT ON PEBBLE CREEK PARKWAY TO TEE, WHICH IS ROYALADELADE DR. GO TO DEAD END AND YOU ARE THERE. COLLEGE STATION, TX 77845 BRAZOS County Operator: CN600561195 BRAZOS PAVING INC PO BOX714 BRYAN, TX 77806 This permit expires on March 05, 2018, unless otherwise amended. If you have any questions related to processing, you may contact the Stormwater Processing Center by email at swpermit@tceq.texas.gov or by telephone at (512) 239-3700. For technical issues , you may contact the stormwater technical staff by email at swgp @tceq.texas.gov or by telephone at (512) 239-4671. Also, you may obtain information on the TCEQ web site at http://www2 .tceq.texas.gov/wq_dpa/index.cfm . A copy of this document should be kept with your SWP3. Issued Date: June 26 , 2013 FOR THE COMMISSION MEMORANDUM DATE: July 14 , 2014 TO : Davis Young , Pebble Creek Land Company , via ; davis .y@pebblecreektx.com FROM : Danielle Singh , Transportat ion Engineer SUBJECT : PEBBLE CREEK PH 70 (FP) ENGINEERING COMMENTS NO. 1 ,If . Please label the volume and page numbers for all existing easements . ~The scale appears to be incorrect. Jr: Please clarify in note 8 that privacy fences are not allowed in the floodplain as this would impede flow . /. Some bearings have not been labeled near the common area . Please ensure all necessary bearings are included . @) Please show markers for lot corners or other changes in direction (some are missing around the property boundary). evelo ment Permit Comments: 6. Please provide a water report , sanitary sewer report and letter acknowledging City Standards. Please include any designs that deviate from the standards (including sewer slopes) .. -See attached . y Please review the last two notes on sheet C1 .1 , it appears that symbols were left of the plans. -See revised plans. %. On the grading an erosion control plan , please show contours for the entire property . -See revised plans . ~ It appears that some erosion control measures may be needed along the north property line. -See revised plans . ).0'. Please show a construction entrance. -See revised plans . )1. Please provide a street light layout. -See revised plans. -~Please provide a street sign layout.' -See revised plans . ~+.;I @ Please show the limits of the floodplain on the construction plan. Please add a note that about no construction activities in the floodplain unless otherwise specified . -See Sheet C1 .1 ~Has the post office reviewed the location of the mailbox? %.The sidewalk should be shown behind the mailbox turnout , not through it. Please add a public access easement for the new sidewalk location . Curb ramps and detectable warning pavers should be shown at all intersections . Please remove overlapping text and verify labels are shown correctly . There appear to be a lot Planning & Development.Services P.O. BOX9960 • 1101 TEXAS AVENUE · COLLEGE STATION · TEXAS · 77842 TJ:'T CJ7CJ 7(.,/J. 7,<;70 . PAY CJ7CJ 7(..6. 7,/J.CJ{.. of misplaced labels. -See revised plans . Turnout has been removed. Curb Ramps have been added and labels adjusted . ®'Is oversized participation being requested with this section? If so , this needs to be included in the next submittal. . -See attached . @ Please specify that the curb should be laydown curb. -See revised plans. Typical street sections have been added to Sheet C2 .1 and C2.5 showing the curbing. @ on sheet 2 .5 , the slope should not exceed 2% in the first 25 ' of the intersection . - See revised plans ('f§)Please place curb inlets on before the bend in Quarry Oaks Drive . ~Label the curb radius at all streets intersections. ~There are entire street profiles that were not included in these plans. -See revised plans @,At T-intersections , please add a curb ramp to cross over the main streets to provide additional access . -The ramps have not been added in order to be consistent with the rest of the develoment and approved preliminary plan. Y.There does not appear to be a design for the drainage at the end of Brandon Dunes Court . -See revised plans Bandon Dunes has to be drained back to ~uarry Oak . V ~he configuration for SD-3 is not an acceptable design as it will cause additional drainage to already established lots . This storm sewer should outfall to a different location. This could potentially be combined with the Brandon Dunes storm sewer. -The existing drainage of this area of the development flows to the creek between Phase 7B and 7D. The stormwater needs to be released at this point. The headwall has been pulled away from the property line to be similar to the discharge in Phase 7C . 'J15. Please correct your storm sewer profile on sheet C3 .1. Inlet 1.3 will not drain. - See revised plans 'jl!{. Please show details for pipe SD-1 , rip-rap , end treatments , existing grades, etc . . -See revised plans p There does not appear to be a reason for a grate inlet at 2 .1 .. -See revised ;::::;;,. p I ans ~There are several locations where junction boxes would be better served as curb inlets . -The junction boxes have been left since it appears the water is being removed from the street appropriately with the current configuration and changing the j/box to inlets will cause the pipe sizes to be larger further upstream than currently shown. ,Jef. Please label the roads in all plan views . It is very difficult to review the plans as is .. -See revised plans Jef'. Please label all station numbers there are several places labeled as ??? .. -See revised plans ~Please check flow lines labels for storm sewer and sanitary sewer at junction ~ints . -See revised plans ~lease check your stationin~ron sheet C3 .3 . -See revised plans AjVPlease label all utility crossings in profile views . Check locations of services that )CJ'. have been shown . There are locations where services are shown to cross ~~through proposed lines . -See revised plans )(51 Please complete your water line design before resubmitting (show bending radius , label services in plan view , label all fittings, sanitary crossing with TCEQ requirements , etc.) Also , please review your fire hydrant locations . -See revised _/lans )5. On Flint Hills Drive , the waterline should not reduce to a 6 " (for 100 ') between the two 8" lines. -See revised plans ):ef' The waterline along Bandon Dunes Court can be 4 ". -See revised plans ~Please label sanitary sewer services in the plan view. -See revised plans ~Please complete your sanitary sewer profiles before resubmitting. -See revised plans ;e-:-Drainage report is still being reviewed. Comments will be sent via email. Reviewed by : Danielle Singh Date : 7/8/14 PC : Jeff Robertson , McC lure & Browne Engineering , via ; jeffr@mcclurebrowne .com P&DS Project No. 14-00900160 MEMORANDUM DATE : October 8, 2014 TO : Davis Young , Pebble Creek Land Company , via ; davis.y@pebblecreektx.com FROM: Jennifer Prochazka, AICP SUBJECT: PEBBLE CREEK PH 70 (FP) Staff reviewed the above-mentioned final plat as requested . The following page is a list of staff review comments detailing items that need to be addressed . Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zoning Commission meeting: One (1) 24 "x36 " copy of the revised final plat ; One (1) 24 "x36 " grading and erosion control plan ; Thirteen (13) 11 "x17" copies of the revised final plat ; One (1) Mylar original of the rev ised final plat (required after P&Z approval); and One (1) copy of the digital file of the final plat on diskette or e-mail to : pdsdig italsubmittal@cstx.gov . Upon receipt of the required documents for the Planning & Zoning meeting , your project will be considered formally filed with the City of College Station . Please note that this application will expire in 90 days from the date of this memo , if the applicant has not provided written response comments and revised documents to the Administrator that seek to address the staff review comments contained herein. If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meeting . Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting . http://www .cstx .gov/pz Please note that a Mylar original of the revised final plat will be required after P&Z approval and prior to the filing of the plat. If you have any questions or need additional information , please call me at 979 .764.3570. Attachments : Staff Review Comments PC : Jeff Robertson , McClure & Browne Eng ineering , via ; jeffr@mcclurebrowne .com P&DS Project No . 14-00900160 Planning & D evelopment Services P .O . BOX 9960 • 110 1 TEXAS AVENUE · COLLEGE STATIO N ·TEXAS • 77 842 TEL. 979 .764.35 7 0 ·FAX. 97 9.7 6 4 .3496 cstx.gov/devservices ~ IL-3 -4 C ,3 6 11) Y-eQ1( W\01,)l sW~ Ysvo sc£J. STAFF REVIEW COMMENTS NO . 1 Of l~ Project: Pebble Creek Ph 7 d (FP) ( 14-00900160) PLANNING -Repeat Comments 1. Please provide an index sheet showing the entire subdivision w ith matchline and label the matchlines on the other pages . The overall layout and matchlines are shown on the vicinity map on page 1. 2 . Please prov ide the total lot count in the title block . See revised plat. 3 . Please label all roads on Inset "A." See revised plat. 4 . The current zoning of the property is GS General Suburban (no longer called R-1 ). 5. The scale does not appear to be 1"=100 ' as indicated . Please check . See revised plat. 6. Please provide volume and page of all exist ing easements on the plat. . See revised plat. 7 . Please note that any changes made to the plans , that have not been requested by the City of College Station , must be explained in your next transmittal letter and "bubbled " on you r plans. Any additional changes on these plans that the City has not been made aware of will const itute a completely new review . 8. Please note that you may be required to submit paid tax cert ificates if they are not current pr io r to the fil ing of your plat. 9 . Please be aware that each lot will be required to provide a m inimum of two (2 ) trees of at leas t two inches (2") in caliper or one ( 1) t ree of fou r inch ( 4") caliper per Ord inance No . 3222 . Rev iewed by : Jennifer Prochazka Date : October 7, 2014 ADDRESSING -Repeat Comment 1. Please change Royal Adelade Dr ive to Royal Adelade Loop . The st reet name needs to be cont inuous . See revised plat. Reviewed by : Robin Krause , Permit Technician Date : 6/24/14 ELECTRICAL COMMENTS REQUIRING IMMEDIATE ATTENTION 1. The following easements will be required : BLOCK 62 IN BE1WEEN LOTS (21 & 22) (14 & 13) 5 ' PUE See revised plat. BLOCK 64 IN BETWEEN LOTS (16 & 17) 5 ' PUE See revised plat. BLOCK 64 IN BETWEEN LOTS (9 & 10) (19 & 20) 1 O' PUE See revised plat. BLOCK 43 IN BETWEEN LOTS (92 & 93) 1 O' PUE See revised plat. Reviewed by: Eric Horton Date: 7/11/14 ENGINEERING COMMENTS NO. 3 /. The scale shown on plat is not corresponding with the scale specified on the title block. See revised plat. ,,£. Please provide a 20 ' PDE along SD-3 on plat. See revised plat. DEVELOPMENT PERMIT COMMENTS %. Please fix/update the Sheet List Table on the cover sheet. See revised plans . A"." It seems that Quarry Oak Drive 's street plan and profile are not included . See revised plans . @ Please provide updated Engineering estimate . See attached . 6. Please include the street names on all the sheets . See revised plans . ...(!}-Please clarify what the circle symbols that are shown by the cul de sac on the grading and erosion control plan . They were lines created by AutoCAD "s grading program . They have been removed . ...8'.' Please provide a street sign detail. See revised plans (Sheet C 1.1 ). %. Please add a note stating that no construct ion activit ies in the floodplain unless otherwise specified . See revised plans (Sheet C1 .1 ). @ The 6" Curb needs to be changed to a lay -down curb . Please make sure this change will be reflected on your drainage report . The curbs on Roya l Adelade a re 6" to match the · existing sections of the street in Phase 7C . The other streets are all laydown curb. C) Please adjust the intersection grades in such a way that the first 25 feet do not exceed +-2% grade . (Royal Adelade Drive & Pebble Creek Pkwy , Royal Adelade Drive & Quarry Oaks Drive ) See revised plans . Royal Adelade Drive intersects Pebble Creek Pkwy at the crest of a vertical curve . The grades with the limits of the apron are less than 2%. The grades on Quarry Oaks Drive has been revised to be 2%. Jt . Please provide elevation every 25 ' a long the eyebrow on Hawks Ridge Drive . See revised plans .. %. Please label the sidewalk on both sides for typical 28 ' pavement section on sheet C2.5 . See revised plans . 14 . Please show propose contour tying with existing contours with lots sloping away from the street. We have concern with the driveway, and drainage issues that may arise . See revised plans . p. A slope of 0.6% on Bandon Dunes Ct. will result in slopes less than minimum requirements in the gutter around the cul de sac. Please label spot elevations a round cul de sac. See revised plans. Grades around the cul-de-sac have been added every 25 ' to ensure a grade >0 .6% around the cul-de-sac . WATER LINES }'ef. Please show Sewer conflict on water conflicts on profiles. See revised plans . ;.;?".On Waterline WA-1 profile by station 7+00 , there 's a donut shape symbol above the waterline . Please label what this is . See revised plans . ft Please show Gate valves and Fire Hydrants on profiles. See revised plans . % Please make sure to have gate valves at least every 800 feet. See Quarry Oak Dr. See revised plans . @. Please provide the curvature for the water lines on the profile and confirm that they meet the maximum deflection per BCS guidelines . Please use fittings where appli c able . See revised plans . J{. Please use appropriate gate valve sizes , Tees , and Anchor Coupling . See insets . See Di. revised plans . \...:9 Please label all your water service lines on the plan & profile view. Also make sure that they are corresponding on the plan & profile . See sewer lines also . See revised plans. 'JZ· Please make sure that all the labels with leaders are pointing at the right item on the profiles . See revised plans . j'A. Crossings are not meeting TCEQ . See WA-1 on SE-2 , WA-2 on SE-5 , SE -3 & SE-6 on WA-2 , and laterals . Please note lateral clearance is only a recommendation . See revised plans . 25. Please confirm that lots 95 -89 on block 43 is acquiring their water service lines by the 12 " water line through Pebble Creek Parkway and that they are being left between 2 ' and 3 ' deep at the point of terminus with a ball valve by the contractor. Yes , these services are shown on the Pebble Creek Pkwy plans . ~-Waterline WA-2 's profile is showing SD-1 , but the overall plan shows that SD -1 does not cross WA-2 but WA-1 . Please fix . See revised plans. p . Is there a particular reason why the WA-2 has sections that are 8 feet deep? We prefer to keep the maximum depth of a main line to 5 feet if there are no special circumstances that would require a greater depth than 5 feet. See revised plans . r;?)n lieu of achieving a minimum 4 feet depth on several portions in all your waterlines , we l.:7~ould need to have the sections that do not meet the minimum 4 feet depth change to ductile iron pipe with cement stabilized sand backfill. See rev ised plans. J9 . Please provide the stationing on waterline WA-2 's plan view. See revised plans . ~It seems that the water service line for lots 88 & 87 of Block 43 along Quarry Oaks Way is connected at the bend of WA-1 . Please move it before or after the bend . Also see water service line for lots 15 & 16 of Block 64 on WA-3 See revised plans . ,.31 . Are lots 11 & 12 of Block 64 having a water service line of Quarry Oaks Dr? Please show water service on WA-2 plan and profile . See revised plans . 3j. Is there a particular reason why the water service line for lot 25 of Block 62 is a 1.5" service line instead of 1.0"? See revised plans . J'3· The water service line for lots 60 and 59 on block 39 can 't be sharing the same service · point with the sewer service line . Please relocate the water service line or sewer service line in such a way that they are not using the same property border. See revised plans . ~-Please fix Water profile title on sheet C4 .6. It 's stating that a 6" & 8" are being used . See revised plans . ~-Notes on sheet C4.6 are not legible. See revised plans . J6. Please show the slopes of all waterlines on the profiles . See sheet C4.6 See revised plans . SEWER LINES /1 · Sewer service line SS5 .02 can 't service both lots with a water service line on that property lot line . Please relocate the service line to the lot line between 1 & 2 , and have another service line between lot lines 3 & 4 . This also eliminates having a sewer service line on Hawks Ridge Dr. and Quarry Oaks Dr . FYI , we would like to keep the service lines on the frontage of property . See revised plans . 38 . Please fix the north arrows , they seem to be pointing in the wrong direction for sheets C3 .1, C3 .3 , C4 .3 , C4.4 , C5 .3 , C5 .6 , C5 .7 . It 's confusing when you 're trying to orient yourself with the north arrows . See revised plans . 91"1s there a sewer service line for lots 88 & 89 of Block 43 connected to MH 2 .01? Please show service line on plan view. Also see service line for lots 16 & 17 of Block 64 connecting to MH 4 .01 . See revised plans. ~Please adjust sewer service lines in such a way that they are perpendicular to the sewer · /mains. Same goes for water service lines if applicable . See revised plans . .)f1. Please fix profiles , there are measurements without correspondence to nearby utility lines . See revised plans . ~. SS4 .05 seems to be mislabeled since its showing Sta 9+99 . See revised plans . ~Please correct lot numbering on sheet C5.5 , C5.7 . See revised plans . 44 . There are several sewer service lines that are showing negative grade percentage and 0 percent. Please address these lines to have adequate gravity flow slope. The negative slope just indicates flow direction based on which way the pipe was drawn in the computer . The service elevations drop from the property line to the sewer main . The 0% grades have been fixed . @ Please make sure that all the Manholes have at least a .1 foot drop between the transitions . See revised plans . _¢. Please fix sewer lines to have the minimum slope requirement per B/CS . Or Address this ,..o n the letter acknowledging city standards with justification . See attached letter. j7f. Please make sure that the Manholes are corresponding Stationing and label on plan and profile view . See Sheet C5 .2 . See revised plans. 48 . SE-2 section (Sta 6+00 to Sta 7+00 ) is having a depth of 10 feet and the horizontal clearance from the line to the PUE is only 8 feet. Move the section closer towards the sidewalk so that there 's at least 10 feet clearance between the line and PUE. Or provide additional PUE along those lots. See revised plans . Easement width has been increased . f MH 2 .03 needs to be changed to a drop manhole since the 4" is entering the manhole more than 2 feet above the exiting flow line elevation . Also please move the label since its cut off. See revised plans. @.Please show PUE boundaries on sheet C5.4 . Please note that if the PUE horizontal clearance to the depth of the sewer line ratio is less than 1: 1. Additional PUE is going to be required or the sewer line has to be shifted to provide adequate clearance . See revised plans . Easement width has been increased. {51 '\SE-7 is having sections that are 10 feet to 15 feet deep . The line needs to be shifted \_/towards the ROW in such a way that there 's at least a 1: 1 ratio of depth to horizontal clearance to the PUE boundary . If th is is not possible we would need to acquire additional PUE so that it meets the rat io. See revised plans . Easement width has been increased . WATER & SEWER REPORT @ Please show proposed Fire Hydrants on the Overall Sheet , and water map report . Please make sure that the fire Hydrants are 1000 feet apart and that no structure is more than 500 feet away that is measured along the ROW. See revised C1 .1 and ,/,., Exhibit B-1. 73. Please check water report , the table shows a junction node 6 which is not shown on the water map . J-6 is the fire hydrant located between J-7 and J-16. It has been added to the water map. See revised Exhibit B-1 . @ Please show the fire flow demand for each Fire Hydrant , and label them uniquely on the Water map . The water reports have always been prepared with a static flow condition to identify the fire hydrant with the lowest pressure (most hydraulically remorte) and the fire flow has been added to that hydrant in order to avoid many un-necessary models for each hydrant. Has the policy changed on this requirement? /5. Sanitary Sewer Analysis table seems to be using the incorrect min design slope . See revised Exhibit E. 5(,-he Manning friction slope ADF is not corresponding with the slopes provided on the construction documents . The Manning friction slope ADF calculates the minimum slope .L for that particular pipe size and material. It is not the same as the slope in the plans. 1'>7. The velocity of the sewer lines shown on the sewer analysis table are below the minimum velocity of 2 .5 fps . Please address this issue. The minimum slopes for each diameter pipe is based on the pipe flowing full and producing 2.5 feet per second . Sewer pipes will almost never flow full and will not reach the minimum velocity unless they are full. Pipe slopes would have to be increased significantly or pipe diameters reduced in order to achieve 2.5 fps on an ADF flow . f. Please check Sewer analysis spreadsheet, there are several lines that are showing a peak flow depth of 0. See revised Exhibit E . STORM SEWER LINES I DRAINAGE REPORT ffe Please check your stationing for all your inlets on plan and profile view. See revised plans . ~.;.Please correct FL in & FL out on the storm drain & sewer profiles See revised plans . JY . Please make sure that there 's at least .1 foot drop between the transition of all inlets , ,...... j unction boxes , and manholes. See Inlets 3 .2 & 3.4 . See revised plans . ~ Please pull back SD-3 & place outflow in an acute angle towards the flow . Please make sure that the discharge location has adequate armor and that the flow stays within the easement. Also provide a cross section detail of the discharge location . See revised plans . fe'f. Please provide pre-development drainage conditions and map. Please show that flows adjacent to existing properties are not increasing. Also show a summary table showing the impact of the proposed drainage compared to the pre-development drainage conditions . The pre-developed flow for this creek was mitigated with the retention ponds built with Phase 9C . The original dra inage area upstream of this discharge point was -50 acres , but approximately 30 acres of this is now being captured by the ponds in Phase 9C which reduces the overall flowrates. Phase 70 will increase the flow in this creek due to development, but the total is much less than the orig inal flow rate . See attached exhibits . ~Technical Design summary is stating that there 's a SD-2 , but the construction documents do not show a SD-2. Did you mean SD-3? If it is SD-3 , the headwall is not showing a rock rip rap . Please address and fix . See page 14 on appendix D. Yes , this was intended to be SD-3 . See revised exhibit. ~-Technical Design Summary page 23 is stating a drainage area 15b. There 's no drainage area 15b shown on the drainage map . Please address this issue See revised exhibit. f{3· Why 's a roughness coefficients of .024 for street gutters being assumed? Instead of the roughness of .018 . See revised exhibit. ..f;:kWhy's the roughness coefficient for RCP and HOPE .014 being assumed? Instead of .013 and .012 respectively . 0 .014 is being used to be conservative on the flow capacity of these pipes . If the pipe has some silt in it , this is a more realistic value . 68. On pages 24 & 25 in Technical Design Summary, the use of culverts is being shown . f . Please remove. See revised exhibit. ~. Please label Exhibit C-2 's Storm year. See revised exhibit. ~· Please provide inlet computation for a 100 year storm. See revised exhibit. . • J1'\Does Exhibit C-2 take clogging factor into account? Please add a note that clogging V tactor has been taken into account. Clogging has been taken into account. See revised exhibit. '72 . On Exhibit C-2 , Inlets 1.3 and 8 .1 have Q carry over which does not transition to the next inlet. See revised exhibit. /r3. The required street slope on exhibit C-2 does not correspond with the construction documents . See rev ised exhibit. r('. Please use Tc value 10 .0 min for exhibit C-3 & C-4 like it was determined by exhibit C-1 . Please note that the maximum velocity for conduits is 15 ft/s . The time of concentration shown on these exhibits is "cumulative ". The 10 minutes is used for the first inlet in the system , but the travel time through the pipes is added as the water f lows from inlet to inlet. ~Please fix the design storm column on exhibit C-4 . See revised exhibit. ~The f low on exhibit C-5 is not corresponding with the flow determined in exhibit C-3 . Please fix this . See revised exhibit. 77 . Exhibit C-5 & C-6 are showing different pipe slope , diameter, flow elevation , street slopes compared to the construction documents . See revised exhibit. ~Column SF on exhibit C-5 & C-6 , is this the friction slope? Please check the friction slope some are not corresponding with exhibit C-3 & C-4 . See revised exhibit. ~Please use roughness coefficient .018 in your pavement section calculations . See revised exhibit. ~-The calculated flows in your pavement section exceed the flows determined in C-1. Please address this . See revised exhibit. Reviewed by : Danielle Singh Date : October 8 , 2014 MEMORANDUM DATE : November 17 , 2014 TO : Davis Young , Pebble Creek Land Company , via ; davis .y@pebblecreektx.com FROM : Jennifer Prochazka , AICP SUBJECT: PEBBLE CREEK PH 70 (FP) Staff rev iewed the above-mentioned final plat as requested . The following page is a list of staff review comments detailing items that need to be addressed. Please address the comments and submit the following information for further staff review and to be scheduled for a future Planning & Zon ing Comm iss ion meet ing : One (1) 24 "x36 " copy of the revised final plat ; One (1) 24 "x36 " Revised set of constructio n documen ts ; Th irteen (13 ) 11 "x17" copies of the revised final plat ; One (1) Mylar original of the rev ised final plat (required after P&Z approval); and One (1) copy of the digital file of t he final plat on diskette or e-mail to : pdsdiqitalsubmittal@cstx.gov . Upon receipt of the required documents for the Planning & Zoning meeting , your project will be considered formally filed w ith the City of College Station . Please note that this application wi ll exp ire in 90 days from the date of this memo , if the applicant has not provided written response comments and revised documents to the Adm inistrator that seek to address the staff review comments conta ined herein . If all comments have not been addressed your project will not be scheduled for a Planning & Zoning Commission meet ing. Your project may be placed on a future agenda once all the revisions have been made and the appropriate fees paid . Once your item has been scheduled for the P&Z meeting , the agenda and staff report can be accessed at the following web site on Monday the week of the P&Z meeting . http://www.cstx .gov/pz Please note that a Mylar original of the revised final plat w ill be requ ired after P&Z approval and prior to the filing of the plat. If you have any questions or need addit ional information , please ca ll me at 979 .764 .3570 . Attachments : Staff Review Comments PC : Jeff Robertson , McClure & Browne Engineering , via ; jeffr@mcclurebrowne .com P&DS Project No . 14 -00900160 Planning & Development Services P.O. BOX9960 • 1101 TEXAS AVENUE · COLLEGE STATION · TEXAS · 77 842 TEL. 97 9.76 4 .35 70 ·FAX . 97 9.7 6 4 .3496 cstx.gov/devservices STAFF REVIEW COMMEN T S NO . 1 Project: Pebble Creek Ph 7d (FP) (14-00900160) PLANNING -Plat to be submitted later this week. 1. Repeat Comment: Please provide an index sheet showing the entire subdivision with matchline and label the matchlines on the other pages . To clarify , Sec . 12 -3.4 .C.3.b.4) of the Unified Development Ordinance requires that when the plat is on more than one page , an index sheet including the layout of the subdivision at a scale of 1 :500 or larger be provided . Please let me know if you have further questions about this . Reviewed by : Jennifer Prochazka Date: November 17 , 2014 ENGINEERING COMMENTS NO. 4 / Please fix the scale of Inset "A " on final plat sheet. © Please add a note regarding requirement for compaction of fill or engineered slab for affected lots that have greater than 2 feet of fill. Also please list the lots that would requ ire this . Z. Please indicate minimum habitable finish floor elevation for lot 69 on Block 39. 4 . Prov ide an updated Engineering cost estimate . -See attached . )if. MH 2 .02 & 4 .02 is 10 feet deep and the horizontal clearance with the PUE is not adequate . Please prov ide an additional 5 feet PUE around manholes 2.22 , 4.-82 , 9-:-62-. (The additional PUE is only required for lots that are adjacent to the manho les .) See Revised plans . The easement has been increased or the manhole has been moved . @) The additional PUE provided for SE-7 Sta 10+00 to Sta 17+00 is not adequate . Please prov ide addit ional PUE in such a way that there 's at least a 1: 1 ratio of depth to horizontal clearance of the sewer line to the PUE boundary . See Revised plans . The the sewer line has been moved . Water Lines (j) Check the proposed sizes for Inset "A" on sheet C4 .1. See Revised Plans. 8. It appears fire hydrants are more than 1000 feet apart . Please add additional fire hydrants or adjust the fire hydrants ' locations . See Revised Plans . Fire Hydrant at Pebble Creek Pkwy and Royal Adelade has been removed. A new hydrant has been added at the intersection of Hawks Ridge and Flint Hills . Fire Hydrant at intersection of Quarry Oaks and Hawks Ridge has been moved to the other side of intersection to reduce spacing distances . .J?r: In lieu of ach ieving a minimum 4 feet depth on several port ions in all your waterlines , we would need to have the sections that do not meet the minimum 4 feet depth change to duct ile iron pipe with cement stabilized sand backfill. See waterlines WA-1 , WA-2 (Sta 12+20 -13+10) and WA-3 (Sta 6+38 -8+20). See Revised Plans . WA-1 is 4' below Proposed Grade for the entire length now. Near Station 2+25 to 4+00 is less than 4 ' to Existing Ground, but that will not be the final surface . @ SE -3 does not meet TCEQ clearance requ irement with WA-2 . See Revised Plans . ~We don't have equipment to maintain an 8 feet waterline. Please adjust Water line WA-2 to have a max imum depth of 5 feet and cross the sewer l ines above . The li ne may need to be changed to ductile iron if it doesn 't meet the min imum 4 feet depth requirements . See Revised Plans . J1.' Please check your water & sewer service lines on plan and profile . They seem to be mis labeled . See Revised Plans . @ There are several deflection that appear to need bends , show the curvature with radius and vertical curves and confirm that they meet the maximum deflection per B/CS guidelines . Please use fittings where applicable . The allowable radii in the BCS guidelines correspond owing c anqes in qra e ora ve 1ca curve : to the foll · h · d f 20 ' rt . I Pipe Diameter Minimum Radius Change in Grade 6" 220 ' 8.75% 8" 400 ' 5.0% 12 " 600 ' 3 .5% All vertical and horizontal pipe deflections meet t his requirement. Sewer Lines )4· Grades for sewer service lines don 't correspond with flow line elevations , please revised . Also the flow line elevation at the property line seem to be deeper than the maximum 3.5 allowable terminus depth . Please address and fix . See Revised Plans . The flow at end marked in the plan view represents the elevation at the wye or bend . The contractor is responsible for extend ing the service up to within 3 .5' of the surface at the term inus . ~ Please fix lot numbering on sheet C5 .3, ~ See rev ised plans . ;?.'it seems there is no sewer service line for lots 69 & 70 on Block 39 , and lot "'4 on Bl ock ~­ See revised plans . A-1": Why does lot 78 on Quarry Oaks Dr. have 2 sewer service lines? See revised plans . &MH 1.05 does not have a transition drop . Please adjust the slope so that it has at least a 0.1 feet transition drop. See revised plans . )% Please check MH2 .02 , the flow line shows a 0.1 feet drop but the profile seems to show a greater drop . See revised plans . ..zQ. Please correct the label of the waterline conflict on profile for SE-5 . WA-1 is shown instead of WA-2 . See rev ised plans . ,,.21". The grade changes from .40% to .45% between MH 1.03 & MH 1.04 . Please add a manhole or adjust the grade. See revised plans. ~Check the flow lines for MH 7.03 & MH 7.04. See rev ised plans . S.!_orm Sewer Lines I Drainage Report ~The outfall for SD-3 needs to be pulled back and in acute angle towards the creek flow . Please confirm that the outfall velocity entering the creek is fairly similar to the Creek 's velocity to m inimize turbulence . See revised plans . SD-3 has been turned downstream . A 45 deg. Bend has been added just upstream of the headwall. ,24.' Please correct 7.1 's curb inlet stationing . See revised plans . ~·Why were the inlet computations changed from Recessed Inlet on Grade to Recessed Low point Inlet for Inlet# 4.4 & 8.1? These two inlets should 've stayed Recessed Inlet on Grade like your previous Drainage report has shown . The street grade has been changed to allow these inlets to be analyzed as low point inlets . ~. Please provide justification and the assumptions be ing made for the calculations of the creek 's capacity. The slope was determined by on-the-ground survey information . Roughness coefficient (0 .035) is the normal value for straight , full stage minor streams with some weeds and stones per HEC-RAS manual. The area and wetted perimeter are based on a cross sect ion of the creek made by survey at the discharge location . @ it seems that a different area for the street capacity calculation was used for the 10 year storm event. Please correct the area value used for the calculations , and it also seems that the determined flows on exhibit C-1 exceeds the flow determ ined for your street capacity . Label in the plan view was incorrect. It has been corrected on the attached sheet. Oversized Participation Requirements -Working on compiling this information. 1. Please provide a sealed metes & bound . 2. Please provided an updated Insurance policy , the current one is about to be expired . 3 . Please provide filled out Performance Bond . (See attached file) 4. Please provide a water map that corresponds with the provided Fire flow reports . Reviewed by : Danielle Singh I Kevin Ferrer Date : November 17 , 2014 C rT Y O F C o rJ ,F,G R STAT IO N Ho me of Texas Aef M U11 iversi ry • MEMORANDUM DATE : July 21 , 2014 TO : Davis Young , Pebble Creek Land Company, via; davis.y@pebblecreektx.com FROM : Danielle Singh , Transportation Planning Coordinator SUBJECT: PEBBLE CREEK PH 70 (FP) ENGINEERING COMMENTS NO. 2 Drainage Report: 1. The drainage report needs to be sealed . 2. There are only 14 inlets on the plans , but 16 are analyzed in your drainage report . 3. Your inlet numbers on the plans do not correspond to the inlet numbers in the drainage report . This makes it very difficult to review. 4. Please revise your drainage map . There are drainage areas that are not labeled . 5. Please provide an exhibit with inlet and pipe labels . 6. All of the inlets are analyzed as low point inlets when most are on grade. 7. The flow in your inlet calculations does not reflect the actual flow to the inlets . Please revise . 8 . Please provide street capacity calculations . 9. Please provide hydraulic grade line calculations and graph . 10 . Please show your capacity calculations for the drainage way between Phase 7B&7D . Please make sure to include drainage from Pebble Creek Parkway . Calculations should include downstream area in 7C . 11 . Your pipe sizes do not correspond with your construction plans 12 . The flows in your pipes do not reflect the cumulative flows in the pipes . Reviewed by : Danielle Singh Date : 7/21/14 PC : Jeff Robertson, McClure & Browne Engineering , via ; jeffr@mcclurebrowne.com P&DS Project No . 14-00900160 Planning & D1'11elop111ent Services J'.\1. l\OX 9%0 • 110 I TEXAS :WEN LTE • COLLECE STAT ION • TEXAS • 77 842 TF.L 'l 7 'l.76-! .. 35 7 0 ·FAX. 97 9.76-i .. '14% cstx.gov/devservkes Kevin Ferrer From: Sent: To: Subject: Kevin, Stephen A. Maldonado Jr. Monday, September 29 , 2014 4:03 PM Kevin Ferrer RE : Pebble Creek Phase 7D Your comments are good. We 'd much rather deal with repairing/maintaining a shallower waterline (that meets our design specs) than a deeper one that would require a large excavation during a repair, with a potential sewer line in the way. Than ks, Stephen From: Kevin Ferrer Sent: Monday, September 29, 2014 3:56 PM To: Stephen A. Maldonado Jr . Subject: Pebble Creek Phase 7D Hi Stephen, I'm currently reviewing Pebble Creek Phase 7D . They are proposing a 8" waterline that is 2 feet below the ground . I was going to make them change that section to ductile iron with cement stabilized sand backfill in lieu of 4 foot depth . Is this section too shallow for that? Please note that there is a sewer main crossing below the proposed waterline that needs additional clearance. Or would we rather have them cross the sewer main below? Let me know what you guys would prefer. I'm providing a profile portion of the section as reference. I'll appreciate your feedback to give them an appropriate comment. Thanks, Kevin Ferrer, EIT Graduate Civil Engineer Planning & Development Services City of College Station Office: (979) 764-3760 Email : kferrer@cstx.gov 1 DEVELOPMENT PERMIT PERMIT NO. 14-160 Crrv OF COLLEGE STArl ON PlJ.tJ 11i~& [1,-w/t;pmm t .'it-tt-U11 FOR AREAS INSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: A020201 (Pebble Creek Ph 7D) SW Robertson (ICL) TRACT14.41 DATE OF ISSUE: 12/19/2014 OWNER: Pebble Creek Land Company (Davis Young) 5102 Stonewater Loop College Station , TX 77845 SITE ADDRESS: Next to Pebble Creek Pky and Pebble Creek 7C DRAINAGE BASIN: Alum Creek VALID FOR 24 MONTHS CONTRACTOR: TYPE OF DEVELOPMENT: Full Development Permit CONDITIONS: 1. No work beyond limits covered in perm it is authorized . 2 . The permit may be revoked if any false statements are made herein . If revoked , all work must cease until permit is re- issued . 3. The permit will expire if no significant work is progressing within 24 months of issuance . 4. Other permits may have been required to fulfill local, state and federal requirements . Construction will be in compliance with all necessary State and Federal Permits . 5. Stormwater mitigation , including detention ponds will be constructed first in the construction sequence of the project. 6. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that all debris from construction, erosion, and sedimentation shall not be deposited in city streets , or existing drainage facilities. Construction Site Notice or Notice of Intent (NOi) along with Stormwater Pollution Prevention Plan (SWP3) will be kept and maintained on-site during construction as per TPDES permitting requirements . If it is determined that the prescribed erosion control measures are ineffective to retain all sediment on-site , it is the Contractor's responsibility to implement measures that w ill meet Ci ty, State, and Federal requirements . 7. All disturbed areas will be re-vegetated prior to Letter of Completion or Certificate of Occupancy. 8. All trees required to be protected as part of the landscape plan must be completely barricaded in accordance with the Landscaping and Tree Protection Section of the City's Unified Development Ordinance, prior to any operations of this permit. The cleaning of equipment or materials within the drip line of any tree or group of trees that are protected and required to remain is strictly prohibited . The disposal of any waste material such as , but not limited to, paint, oil , solvents, asphalt, concrete, mortar, or other harmful liquids or materials within the drip line of any tree required to remain is also prohibited . 9. All construction shall be in accordance with the stamped approved plans and specifications for the above-named project and all of the codes and ordinances of the City of College Station, as well as State and Federal Regulations that apply. Only those deviations from BCS Unified Design Guidelines , Specifications and Details specifically requested and approved will be allowed . 10 . Special Conditions: No Construction on the waterlines until OP has been finalized . I, _______________ , the Contractor, hereby agree to comply with all conditions herein . Contractor Signature Date Phone number E-mail I hereby grant this permit for development. Contact J">y4e/ J<tJ/fe 1'7?-/,,C 7/ , the Public Works Inspector assigned to this project 24 hours prior to beginning construction for scheduling required Inspections . / .{ -I 9 -:l O/L/ City Date Scale : I Inch= 800 Feet Area: 55 .025 Acres (2,396,899 .00 Square Feet) 14-160 FINAL PLAT PEBBLE CREEK PH 7D BLKS 39 , 43 , 62 , 63 , 64 ACRES 55.025 Area: 55 .025 Acres (2,396,899 .00 Square Feet) Perimeter : 8682 .676 Feet Gap= 0 .008 1. S27 °48'54"W 536 .67' 2. S86 °48'54"W 711.81' 3. N39 °34'55"W 302.62' 4. S50 °25'05"W 166 .10' 5. N39 °35'04"W 2003.85' 6. N50 °19'50"E 166 .18' 7 . S39°34 '55"E 1110 .76 ' 8. N41 °51'36"E 49 .10' 9. N27 °57'44"E 123 .33 ' JO. N62 °14'00"E 98.48 ' 11. N50°25'3 l "E 150.44' 12 . N58 °38'40"E 93 .29' 13. N70°17 '00"E 64 .82 ' 14 . N67 °39'20"E 186 .18' GAP error cannot be greater than 0 .10 (See SOP for Exceptions) -- C L OSED 6-24-2014 BR 2 . S86 °48'54 "\V 71.l .81' 15. N68 °32'58"E 291.60' 16 . N72 °32'39"E 201.84' 17. N62 °49'37 "E 105 .22' 18. N35 °32 '18"E 21.93' 19. S35 °31'3l"E 220 .78' 20 . S42 °45'0 l "E 309.43' 2i. S49 °43'20 "E 11 4 .84' 22 . N49 °44'10"E Ch444 .81' Rad905 .00' 23 . S39 °34 '55"E 116 .56' 24 . S07 °32' J 7"W Ch36 .64' Rad25.00' R 25 . S30 °37'24"E 60 .20 ' 26 . S45 °00'57"E 267 .20' 27 . S44 °58'54"W 7 18.91' I Zoning Districts R E RS GS R-18 D T Rural Estate Restricted Suburban General Suburban Single Family Residential Duplex Townhouse R-4 R-6 MHP 0 SC GC Cl BP vr DEVELOPMENT REVIEW Multi-Famliy High Density Multi-Family Manufactured Home Park Office Suburban Commercial General Commercial Com mercial-1 ndustrial Business Park BPI NAP C-3 M-1 M-2 C-U R&D P-MUD Business Park Industrial Natural Areas Protected Light Commercial Light Industrial Heavy Industrial College and University Research and Development Planned Mixed-Use Development I PEBBLE CREEK PH 70 Case: 14-160 PDD WPC NG-1 NG-2 NG -3 ov RDD KO Planned Development District Wolf Pen Creek Dev. Corridor Core Northgate Transitional Northgate Residential Northgate Corridor Overlay Redevelopment District Krenek Tap Overlay FINAL PLAT vr DEVELOPMENT REVIEW PEBBLE CREEK PH 70 Case : 14-160 FINAL PLAT (