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Home My WebLink About15-24CITY or Co1.1.1 ·:G1 ·:STxnoN Home of Tt!xm Acr/11 University• SITE PLAN APPLICATION GENERAL MINIMUM SUBMITTAL REQUIREMENTS: [g] $932 Site Plan Application Fee. FOR OFFICE USE ONLY CASE NO · j 5 • L '-f DATE SUBMITTED: 6' IQ• Jl..f TIME: 3; 3 () STAFF: D $350 Non-Residential Architectural Standards I Northgate Bu ilding Review Application Fee (if applicable). D $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). D Application completed in full. This application form provided by the City of College Station must be used and may not be adjusted or altered. D Six (6) folded copies of site plan. D One (1) folded copy of the landscape plan. D One (1) copy of the following for Non-Residential Arch itectural Standards building review or Northgate Building Review (if applicable). D Building elevations to scale for all buildings. D A list of building materials for all facade and screening. D Color samples fo r all buildings or list colors to be used from the approved color palette. D Electronic copy of Site Plan e-mailed to csuelectdesign@cstx.gov. D Two (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. D Two (2) copies of the Public infrastructure plans and supporting documents (if applicable). D Traffic Impact Analysis or calculations of projected vehicle trips showing that a TIA is not necessary for the proposed request (if applicable). D The attached Site Plan Non-Residential Architectural Standards Building Review and Northgate Build ing Review checklists (as applicable) with all items checked off or a brief explanation as to why they are not check off. Date of Optional Preapplication or Stormwater Management Conference _N_IA ______________ _ NAME OF PROJECT SOUTHWEST PLACE PARKING LOT IMPROVEMENTS ADDRESS 1712 SOUTHWEST PKWY, #100 LEGAL DESCRIPTION (Lot, Block, Subdivision) SOUTHWEST PLACE, LOT 2A-4 APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name JOE GATTIS, PE ; GATTIS ENGINEERING E-mail joe@gattisengineering.com ----~----- Street Address 2010 MOSES CREEK CT. City COLLEGE STATION State TEXAS Zip Code 77845 ------- Phone Number 979-575-5022 Fax Number NIA ------------------------------ PROPER TY OWNER'S INFORMATION: Name JERRY SK/BELL jerry@skibellproperties.com ---------E-mail Street Address 7 WOODED GA TE City DALLAS Zip Code 77845 -------State TEXAS ----------------- Phone Number _97_2_-_23_3_-_3_83_8 ___________ Fax Number _N_'f,_"------------ Revised 9/14 Page 1 of 11 CITY OF Cou n;E STXJ'L01' Homt o/Texm A.:!rM Univmity• SITE PLAN APPLICATION GENERAL MINIMUM SUBMITTAL REQUIREMENTS: [8] $9 2 Site Plan Application Fee . FOR OFFICE USE ON ~ l CASE NO.: ---'-'' 6=--• ~2.~"':1,___ __ DATE SUBMITTED: Q\ • 23• } 5 TIME: 3 '. SS STAFF: _(\J-¥:s ________ _ ........e:l'1350 Non-Residential Architectural Standards I Northgate Building Review Application Fee (if applicable). (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 ~ue prior to the issuance of any plans or development permit). M A lication completed in full. This application form provided by the City of College Station must be used may not be adjusted or altered. (6) folded copies of site plan. / O ""'One (1) folded copy of the landscape plan. N /A- -a-one (1) copy of the following for Non-Residential Architectural Standards building review or Northgate B ilding Review (if applicable). Building elevations to scale for all buildings. A list of building materials for all facade and screening. Color samples for all buildings or list colors to be used from the approved color palette. Electronic copy of Site Plan e-mailed to csuelectdesign@cstx.gov. __ _._O-+--r'ft'two (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. -1-0~-T""W'"'o (2) copies of the Public infrastructure plans and supporting documents (if applicable). .... 0 r?affic Impact Analysis or calculations of projected vehicle trips showing that a TIA is not necessary for the proposed request (if applicable). ~ attached Site Plan Non-Residential Architectural Standards Building Review and Northgate Building Review checklists (as applicable) with all items checked off or a brief explanation as to why they are not check off. Date of Optional Preapplication or Stormwater Management Conference _N_IA ______________ _ NAME OF PROJECT SOUTHWEST CENTER PARKING LOT IMPROVEMENTS ADDRESS 1712 SOUTHWEST PKWY, #100 LEGAL DESCRIPTION (Lot, Block, Subdivision) SOUTHWEST PLACE LOT 2A-4 APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name JOE GATTIS, PE ; GATTIS ENGINEERING E-mail joe@gattisengineering_.c_o_m ________ _ Street Address 2010 MOSES CREEK CT. City COLLEGE STATION State _TE_X_A_S ______ Zip Code 77845 Phone Number 979-575-5022 Fax Number NIA ------------------------------- PROPERTY OWNER'S INFORMATION: Name JERRY SK/BELL jerry@skibel/properties.com -----------E-mail Street Address 7 WOODED GA TE State TEXAS ----------------~ City DALLAS Zip Code _77_8_4_5 ____ _ Phone Number _9_72_-_2_33_-_3_8_38 ___________ Fax Number _N_IA ___________ _ Revised 9/14 Page 1 of 11 ARCHITECT OR ENGINEER'S INFORMATION: Name JOE GATTIS, PE ; GATTIS ENGINEERING E-mail joe@gattisengineering.com Street Address 2010 MOSES CREEK CT. City COLLEGE STATION State TEXAS Zip Code _7_78_4_5 ____ _ Phone Number 979-575-5022 Fax Number ---------------~ OTHER CONTACTS (Please specify type of contact): Name __________________ E-mail __________________ _ Street Address State ----------------~ _________ Zip Code City Phone Number Fax Number ---------------~ Current zoning GC -GENERAL COMMERCIAL Present use of property RETAIL CENTER -'--'=-'--'-'"----'-=-'-'--'--"'----------------------------- Proposed use of property RETAIL CENTER --'--=-'-'--'=--c'-=----'"-'--'--------------------------- N umber of parking spaces required 57 Number of parking spaces proposed --=-66=------- ls there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? I Yes fX 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, vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law. Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the application be reviewed under previous ordinance as applicable? I Yes fX No If yes, provide information regarding the first approved application and any related subsequent applications (provide additional sheets if necessary): Project Name: City Project Number (if known): Date I Timeframe when submitted: Revised 9/14 Page 2 of 11 MUL T!-FAMIL Y RESIDENTfAL T otat Acreage Floodplain Acreage Housing Units #of 1 Bedroom Units # of :;> Bedroom Urnts # of 3 Bedroom Units # of 4 Bedroom Units FOR 2 BEDROOM UNITS 0 l Y # Bedrooms > 130 sq ft # Bedrooms"' 130 q fl PARKLA 0 DEDICATION (Fees due prior to the issuance of a Building Permit) #of Mui 1-Fam1ly Dwelling Uni!s x $1636 = $ II of <icres in floodplain ii of acres in detention II of acres •n grecnw;:iys Date edication approveo by Parks & Recre<'ltion Adv1gor1 Bovrd COMMERCIAL Total Acrc<igc 09459AC Building Square Feet .~Uli57 F!ood::;i!;i1n Acmagc ~0-'0'---- Proiec:s that were vesti!d priorto January 1, /008. per Chapter 245 of the Texas Local Governrnen: Code may be assessed a di.ferent amount Plc<isc contact city staff for add1t1ona! information rhe applicant h;;s prep&n::(f l/lis ::ipp11c;;it1on and cE>r1tf1es 1.~ot tne f;:icts s1at0d herom an(/ <:xil1/J1ls otl.:icm:<l /1~·1eto <Jiu Uul: andcormct / / / CERTIFICATIONS REQ UIRED FOR ALL DEVELOPMENT Owner Certification: 1 No wo1k of any kmd rnay start until a perrnit 1s issued. 2 The perm;t may be revoked 11 any talse statements are made herein. 3 If revoked, ail work rm st cease u t1I permit 1s re-is ued 4 Development shall not be used or occupied until a Certificate of Oca.:pancy is issued S The p rmit •.viii expire 1t no s1gn1hcant work ;5 progressing w1H1:n 24 months of issuance 6 Other pe•mits may be req ireo to furill local. state. and federal requirements Owner w1fl obtain or show compliance w1 hall necessary State and Federi.!t Perrn1ts pnor to construction including NOi and S ilPPP 7 If required. Elevation Certificates w1li be provided with elevations cert 1cd during construchon (forms at slab pre- pour) and post construction 8 Owner hereb g1 es consent to City representatives :o make rcawnable :ns1~chons required to vcnfy compliance 9 If storr water rrntlgat:on 1s required, u1c1Jd1ng detcntlon pon s propm;,;d as part of this proJe<:t. it sllall be designed and constructed fnst 1n the construe on sequence of the project 0 In ;~cco1dance with Chapter 13 of the Code of Ordinances of the City of College tation 1easures shall tx: kiken lo in~urc that all cebns from c nstruction. erosion. and sed1111enta!lon shall not be deposited a1 city :;tr eels or «Xi:·1111g dra1nai;e fac1ht18:> All development shall be 1n accordance with the plans and spec1hc.a11ons submitted to :;;no approved by the C1 y Engi cer for the above namtd prn1ect Alo of the app!1ca le rndcs and ord:nances of the City ol C liege Station shall apply. 11 l he 1ntormat1on and conclus1ons contained 1n the a!tachec pians a d supporting documc'lts will comply w1:h he current requtremcnts of tne City of Colfege Station r exas City Co<ie. Chapter 13 and <iswc1;i ed BCS Un1!1ej Design Guidelines Technical Specification». and Standard Details AJI oevclopment has been designed "1 accordance w•tn all applicable codes and ord111ances of tt1e City of College Station a d Stale and Ftderal Regulations 2 Release of plans to (name or finn) 1s autnoriLed for h:dding purposes only. I understand :hat final approval and release of pion::; <>nd development for construct;on is cont<ngent on contr-actor signature on approved Development Permit 13 i THE OWNER. AGREE TO ANO CERTIFY THAT All STAT MENTS HEREIN AND IN AHACHMENTS FOH THE DEVELOPMENT PERMrT APPLICATION ARE TO TliE BEST OF MY KNOWLEDGE. TRUE AND ACCURATE /' "' Ii I . 1/ 5-z:-.< ,,._ '•L.; ~; /_/~:....L-f..-L.. Prqperty Owner(s) '., • ( c ~, <!:-A.:\ ~ ?t'-i }'< 1 i Date / ! / Enginoor Certification: The pro;ec.t as been designed to ensuie that stounwater mit1ga\lo 1nc:uding detent.or pond,, prop<;scd a•; part o' the pro,ec: will :Jc con<>lrnc·cd first in ttlC' construct1on sequence :1 t will obtain or can show comph;:incc with all necessary Local State and Federal Permits pnor to construction 1nclud1ng NOi and SWPPP Design will not preclude c.ornphance with TPDES 1 e , pro1ects over 10 aces may rdquire a sed11nenta\1011 basin _ Tl1e 1nfo,matoon and conclus1 ns ccnta111ed 1n lh:' attac;t1ed plans and supporting documents comply with the current 1·cquircmcnts of the C ty ot College Station. Texas City Code Chapter 13 and assocmtcd BCS Unifred Design G •1ccilnes. All deve pment has been designed m accomanr,{; w1 h all applicable codes and ord<11anct.'s of the C•ty ct Coll;,;ge Statio 1 and State and Federal Regufation<:. 4 1. rHE ENGIN R, AGRE TO AND CERTIFY THAT ALL ATEMENTS HEREIN. AND I ATTACHMENTS FOH THE DE LOP~ E PERMIT PUCA TIO TO THE BEST OF MY KNOTiEOGE TRUE. A () ACCURATE ·-~l~ 15 Engineer Date CITY or Co1,1.1 :c;1-: ST,\TIOI\ Home of Ti:xas Ac}Jv/ Uni11a .rity" SITE PLAN MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: Sheet size -24" x 36" (minimum). A key map (not necessarily to scale). e block to include: Name, address, location, and legal description Name, address, and telephone number of applicant Name, address, and telephone number of developer/owner (if differs from applicant) Name, address, and telephone number of architecUengineer (if differs from applicant) Date of submittal Total site area Scale should be largest standard engineering scale possible on sheet. Ownership and current zoning of parcel and all abutting parcels. The total number of multi-family buildings and units to be constructed on the proposed project site. The density of dwelling units per acre of the proposed project. The gross square footage of all buildings and structures and the proposed use of each. If different uses are to be located in a single building, show the location and size of the uses within the building. Building separation is a minimum of 15 feet w/o additional fire protection. Locations of the following on or adjacent to the subject site: Designate between existing and proposed ~ D The density of dwelling units per acre of the proposed project. "' j D Phasing. Each phase must be able to stand alone to meet ordinance requirements. J" D Buildings (Existing and Proposed). D Setbacks according to UDO, Article 5. Geography D Water courses. D 100 yr. floodplain and floodway (if applicable) on or adjacent to the proposed project site. Please note if there is none on the site with confirming FEMA/FIRM map number. D Existing topography (2' max or spot elevations) and other pertinent drainage information. (If plan has too much information, show drainage on separate sheet.) D Proposed grading (1 ' max for proposed or spot elevations) and other pertinent drainage information. (If plan has too much information, show drainage on separate sheet.) Revised 9/14 Page 7 of 11 reets, Parking, and Sidewalks Existing streets and sidewalks (R .O.W.). Existing Driveways, both opposite and adjacent to the site according to UDO, Article 7. Proposed drives. Minimum drive aisle width according to UDO, Article 7 Indicate proposed driveway throat length according to UDO, Article 7 Proposed curb cuts. D For each proposed curb cut (including driveways, streets, alleys, etc.) locate existing curb cuts on the same and opposite side of the street to determine separation distances between existing and proposed curb cuts. Proposed curb and pavement detail. D A 6" raised curb is required around all edges of all parts of all paved areas without exception. (To include island, planting areas, access ways, dumpster locations, utility pads, etc.) No exception will be made for areas designated as "reserved for future parking". Proposed medians. Proposed sidewalks (both public and private). Proposed pedestrian/bike circulation and facilities for non-residential buildings (UDO, Article 7). Off-Street parking areas with parking spaces drawn, tabulated, and dimensioned. D Designate number of parking spaces required by ordinance and provided by proposal. Handicap parking spaces. Parking Islands drawn and dimensioned with square footage calculated according to UDO, Section 7.2 or 7.9 fornon- residential buildings. Parking setback from R.O.W. to curb of parking lot as required. Wheelstops may be required when cars overhang onto property not owned by the applicant or where there may be conflict with pedestrian or bike facilities, handicap accessible routes or above ground utilities, signs or other conflicts. Security gates, showing swing path and design specs with colors. Guardrails. Include design and colors. Traffic Impact Analysis for non-residential development (UDO, Article 7). D Please note if none is required. D Will there be access from a TxDOT R.O.W.? D Yes D No If yes, then TxDOT permit must be submitted with this application. sements and Utilities Easements -clearly designate as existing or proposed and type (utility, access, etc.) Utilities (noting size and designate as existing or proposed) within or adjacent to the proposed site, including build ing transformer locations, above ground and underground service connections to buildings, and drainage inlets. Sewer Design Report (if applicable). Water Design Report and/or Fire Flow Report (if applicable). Drainage Report with a Technical Design Summary. Meter locations, existing and proposed (must be located in public R.O.W. or public utility easement). D Provide a water and sanitary sewer legend to include Minimum water demands Maximum water demands Average water demands in gallons per minute, and Maximum sewer loadings in gallons per day there be access from a TxDOT R.O.W.? D Yes D No s, then TxDOT permit must be submitted with this application. Revised 9/14 Page 8 of 11 Fire Protection D Show fi re lanes. Fire lanes with a minimum of 20 feet in width with a minimum height clearance of 14 feet must be established if any portion of the proposed structure is more than 150 feet from the curb line or pavement edge of a public street or highway. D Show proposed and existing fire hydrants. Fire hydrants must be located on the same side of a major street as a project, and shall be in a location approved by the City Engineer. Any structure in any zoning district other than R-1, R-1A, or R-2 must be within 300 feet of a fire hydrant as measured along a public street, highway or designated fire lane. NOTE: Fire hydrants must be operable and accepted by the City , and drives must have an all weather surface before a building permit can be issued. ~ D Will building be sprinkled? D Yes D No ~ I\/ If the decision to sprinkle is made after the site plan has been approved, then the plan must be resubmitted. If Yes, ~ D Show fire department connections. FDC's should be within 100' of the fire hydrant. They shall be accessible from the parking lot without being blocked by parked cars or a structure. Landscaping D Landscape plans as required in Article 7 of the Unified Development Ordinance. The landscaping plan can be shown on a separate sheet if too much information is on the original site plan. If requesting protected tree points, then those trees need to be shown appropriately barricaded on the landscape plan. Attempt to reduce or eliminate plantings in easements. Include information on the plans such as: D required point calculations D additional streetscape points required . Streetscape compliance is required on all streets. D calculations for # of street trees required and proposed (proposed street tree points will accrue toward total landscaping points.) D proposed new plantings with points earned D proposed locations of new plantings D screening of parking lots, 50% of all shrubs used for screening shall be evergreen. D screening of dumpsters, concrete retaining walls, off street loading areas, utility connection points, or other areas potentially visually offensive. D existing landscaping to remain D show existing trees to be barricaded and barricade plan . Protected points will only be awarded if barricades are up before the first development permit is issued. D Buffer as required in Article 7 of the Unified Development Ordinance. D Show irrigation system plan. (or provide note on how irrigation system requirement will be met prior to issuance of C. 0 .) All plans must include irrigation systems for landscaping. Irrigation meters are separate from the regular water systems for buildings and will be sized by city according to irrigation demand submitted by applicant and must include backflow prevention protection. D Is there any landscaping in TxDOT R.O.W.? D Yes D No If yes, then TxDOT permit must be submitted at the time of application. Other D Common open spaces sites D Loading docks D Detention ponds D Retaining walls D Sites for solid waste containers with screening. Locations of dumpsters are accessible but not visible from streets or residential areas. Gates are discouraged and visual screening is required. (Min imum 12 x 12 pad required.) D Are there impact fees associated with this development? D Yes D No NOTE: Signs are to be permitted separately. Revised 9/14 Page 9of1 1 MEMORANDUM DATE: February 23, 2015 TO: Joe Gattis, PE, Gattis Engineering , via ; joe@gattisengineering.com / FROM: Mark Bombek, Staff Planner SUBJECT: SOUTHWEST PLACE PARKING LOT IMPROVEMENT Staff reviewed the above-mentioned site plan as requested. The following page is a list of staff review comments detailing items that need to be addressed. Please address the comments and subm it the following information for further staff review: City of College Station Transmittal Letter; Memo providing written responses to all of staff's comments (identify the specific page that each comment was addressed on or the reason for not addressing the comment); One (1) complete sets of site civil construction documents for the proposed development with the revised site and landscaping plans attached (one set will be returned to you, please submit additional copies if you want more than one approved set); Two (2) 24"x36" revised site plans; One (1) 24"x36" grading and erosion control plan; 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 Adm inistrator that seek to address the staff review comments contained herein. If there are comments that you are not addressing with the revised site plan, please attach a letter explaining the details. If you have any questions or need additional information, please contact *Not Assigned* at 979.764.3570. Attachments: Staff Review Comments PC : Jerry Skibell, via; jerry@skibellproperties.com / P&DS Project No. 15-00900024 Pla11niug & Development Services P.O. BOX 9960 • 1101 "11:XAS AVENUE · COLLEGE ST.<\TION ·TEXAS · 7784~ TEL. 979.764.3570 ·FAX. 979.764.3496 csb<.gov/devservices STAFF REVIEW COMMENTS NO. 1 Project: Southwest Center Parking Lot Improvement 15-00900024 PLANNING 1. Title block-The title of the project on the plans state 'Southwest Place Parking Lot Improvements' and the application states 'Southwest Center Parking Lot Improvements.' Please re-submit page one of the application to revise the name of the project as stated on the site plan to state Southwest Place Parking Lot Improvements. 2. There is a row of parking in the rear that is indicated 8 spaces. Upon counting, there are only 7 spaces indicated. Please revise the count. 3. In the parking analysis, it shows a total of 64 spaces proposed . The total count only shows 60 spaces. Please revise the total proposed count. 4. Please remove the lines of the existing parking spaces that are being removed and replaced with the 3 parallel spaces. 5. The division at the back of the parking lot separating the new addition from the existing parking spaces only shows separation with a 6-inch raised curb. Being a safety concern, the curbing needs to be removed along the end of the parking spaces. The curbed islands should stay in place. 6. Are there any proposed parking light fixtures for the new lot addition? 7. Please be aware that since this project require a Minor Plat which is being processed und project number, 15-16 this site plan will not be approved until the Mylar has been filed and the subject tract has been legally obtained. 8. As an FYI , with the additional parking spaces the intense use parking requirement is now in compliance, however future intense uses would not be authorized to occupy space as the restaurant is fulfilling the 25% allowance. 9. Provide a general note on the site plan that states the following: Exterior building and site lighting will meet the standards of Section 7.11 of the Unified Development Ordinance. The light source shall not project below an opaque housing and no fixture shall directly project light horizontally. Fixtures will be mounted in such a manner that the projected cone of light does not cross any property line. 10. 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. Any additional changes on these plans that the City has not be made of aware of will constitute a completely new review. Reviewed by: Mark Bombek Date: 02-06-2015 LANDSCAPING/STREETSCAPING/BUFFER 1. Provide a general note that 100% coverage of groundcover, decorative paving, decorative rock (not loose), or a perennial grass is required in parking lot islands, swales and drainage areas, the parking lot setback, rights-of-way, and adjacent property disturbed during construction. Reviewed by: Mark Bombek Date: 02-06-2015 ENGINEERING COMMENTS NO. 1 1. Please show and clearly label existing and proposed contours on Lot 2A-4 and the new parking lot. 2. Provide an erosion control measure at the end of the proposed drainage flume. 3. Show and label all easements on site. 4. It is not clear how the parking lot is proposed to be graded based on the minimal spot elevations provided. Please provide additional shots throughout the proposed pa rking lot. 5. Please include City Standard Details for erosion control. 6. Drainage Report -The drainage report needs to reference the original 1984 report. 7. Drainage Report -Please include the standard drainage certification from the BCS Un ified Stormwater Design Guidelines in the report. 8. FYI ... Please note that this is an abbreviated drainage report and would not typically be acceptable for most developments without additional information. Based on the scope of this project, however, an abridged analysis is probably appropriate. Reviewed by: Erika Bridges Date: 02-19-2015 SANITATION 1. Sanitation is ok with this project. Reviewed by: Wally Urrutia Date: 01-29-2015 FIRE 1. Fire is ok with this project Reviewed by: Raymond Olson Date : 02-18-2015 DATE: TO: FROM: January 27, 2015 C ITY OF C OLLEGE STATION Home ofuxas A&M University" MEMORANDUM Joe Gattis, PE, Gattis Engineering, via; joe@gattisengineering.com Mark Bombek, Staff Planner SUBJECT: SOUTHWEST CENTER PARKING LOT IMPROVEMENT Thank you for the submittal of your Site Plan -Commercial application. Erika Bridges, Graduate Engineer II, 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 Tuesday, February 10, 2015. If you have questions in the meantime, please feel free to contact us . PC: Jerry Skibell, via; jerrv@skibellproperties.com I P&DS Project No. 15-00900024 Planning & Development Services P.O. BOX 9960 • l 101 'JTXAS AVENUE · COLLEGE STATlON ·TEXAS . 77842 TEL. 979.764.35 70 ·FAX. 979.764.3496 cstn.gov/devservices CITY OF COlLEGE STATION Homt ofTtxas A&M Uniumiry• FOR OFFICE USE ONLY CASE NO.: l~ -~q DATE SUBMITTED:d -~ -\ 'S TIME: ~'..30 STAFF: CJ) PLANNING & DEVELOPMENT SERVICES TRANSMITTAL LETTER Please check one of the options below to clearly define the purpose of your submittal. 0 New Project Submittal O Incomplete Project Submittal -documents needed to complete an application. Case No.: ~Existing Project Submittal. Case No.: Project Name $)~\J-.)e &\- Contact Name~ eJu._,fu '::::::. \:> LCA.Ce.- Phone Numbe(g_l §)S'l_S -'5D~ Q We are transmitting the following for Planning & Development Services to review and comment (check all that apply): 0 Comprehensive Plan Amendment 0 Rezoning Application D Conditional Use Permit 0 Preliminary Plan O Final Plat 0 Development Plat D Site Plan D Special District Site Plan D Special District Building I Sign D Landscape Plan INFRASTRUCTURE AND ENGINEERING DOCUMENTS O Non-Residential Architectural Standards D Irrigation Plan D Variance Request 0 Development Permit 0 Development Exaction Appeal D FEMA CLOMA/CLOMR/LOMA/LOMR 0 Grading Plan ~ Other -Please specify below ~~~~(25-) 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 Sewerline Construction Documents D TxDOT Utility Permit D Street Construction Documents D Drainage Letter or Report D Easement Application D Fire Flow Analysis D Other -Please specify Special Instructions: 10/10 Print Form CITY OF Cm.1.Ec;r, ST:\TION Homt o/Trxd; A&M Univmiiv· SITE PLAN APPLICATION GENERAL · MINIMUM SUBMITTAL REQUIREMENTS: [gJ $9 2 Site Plan Application Fee . FOR OFFICE USE ONLY CASE NO.: 16• Z.'1 DATE SUBMITTED: Q\. 23• }5 TIME: 3·. SS STAFF: -A>-¥::S ________ _ .......t:::l'1350 Non-Residential Architectural Standards I Northgate Building Review Application Fee (if applicable). (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 _/1fue prior to the issuance of any plans or development permit). M A lication completed in full. This application form provided by the City of College Station must be used may not be adjusted or altered. (6) folded copies of site plan. / D .One (1) folded copy of the landscape plan. N /fr _g-One (1) copy of the following for Non-Residential Architectural Standards building review or Northgate B ilding Review (if applicable). Building elevations to scale for all buildings. A list of building materials for all facade and screening. Color samples for all buildings or list colors to be used from the approved color palette. Electronic copy of Site Plan e-mailed to csuelectdesign@cstx.gov. ---"D-+---r'f'Wvro (2) copies of the grading, drainage, and erosion control plans with supporting drainage report. --0-+-+---'f'T'lllOfo (2) copies of the Public infrastructure plans and supporting documents (if applicable). -O T?affic Impact Analysis or calculations of projected vehicle trips showing that a TIA is not necessary for the proposed request (if applicable). _.[] Ti:loe attached Site Plan Non-Residential Architectural Standards Building Review and Northgate Building Review checklists (as applicable) with all items checked off or a brief explanation as to why they are not check off. Date of Optional Preapplication or Stormwater Management Conference _N_IA ______________ _ NAME OF PROJECT SOUTHWEST CENTER PARKING LOT IMPROVEMENTS ADDRESS 1712 SOUTHWEST PKWY, #100 LEGAL DESCRIPTION (Lot, Block, Subdivision) _S_O_U_T,_H_~_E_S_T_P_L_A_C_E~L_O_T_2_A_-_4 ____________ _ APPLICANT/PROJECT MANAGER'S INFORMATION (Primary contact for the project): Name JOE GATTIS, PE ; GATTIS ENGINEERING E-mail joe@gattisengineering.com Street Address 2010 MOSES CREEK CT. City COLLEGE STATION State TEXAS Zip Code 77845 ------- Phone Number 979-575-5022 Fax Number NIA -----------------------------~ PROPERTY OWNER'S INFORMATION: Name JERRY SK/BELL E-mail jerry@skibellproperties.com Street Address 7 WOODED GA TE State TEXAS -----------------City DALLAS Zip Code 77845 ------- Phone Number 972-233-3838 Fax Number NIA ------------------------------ Revised 9/14 Page 1 of 11 ARCHITECT OR ENGINEER'S INFORMATION : Name JOE GATTIS, PE ; GATTIS ENGINEERING E-mail joe@gattisengineering.com Street Address 2010 MOSES CREEK CT. State TEXAS City COLLEGE STATION Zip Code 77845 ------- Phone Number 979-575-5022 Fax Number ---------------~ OTHER CONTACTS (Please specify type of contact): Name E-mail -----------------~ ------------------~ Street Address City Phone Number State _________ Zip Code Fax Number ---------------~ Current zoning GC -GENERAL COMMERCIAL Present use of property _R_E_TA_l_L_Co..._E_N_T._E_R _________________________ _ Proposed use of property --'-R""'E'-T.-'-A-'IL~C=E_N--'-T.=E_R'------------------------- Number of parking spaces required 57 Number of parking spaces proposed ----"-66=-------- ls there Special Flood Hazard Area (Zone A or Zone AE on FEMA FIRM panels) on the property? r Yes fX 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, vesting is limited to that which is provided in Chapter 245 of the Texas Local Government Code or other applicable law. Is this application a continuation of a project that has received prior City platting approval(s) and you are requesting the application be reviewed under previous ordinance as applicable? I Yes fX No If yes, provide information regarding the first approved application and any related subsequent applications (provide additional sheets if necessary): Project Name: City Project Number (if known): Date I Timeframe when submitted: Revised 9/14 Page 2 of 11 MUL Tl-FAMILY RESIDENTIAL Total Acreage Fioodpla1n Acreage Housing Units # of 1 Bedroom Units # ot 2 Bedroom Units II of "3 Bedroom Un1ls # of 4 Bedroom Unrts FOR 2 BEDROOM UNITS ONLY Ii Bedroo:ns :> 130 sq ft # Be<Jrooms < 130 sq fl PARKLAND DEDICATION (Fees due prior to the issuance of a Building Permit) #of Mult1-Fam1ly Dwelling Units XS1636 =$ # of <icres in floodplain #of acres in detenlicn Dale dedication apprnv<~d by Parks & Recreation Advisory 8o<im COMMERCIAL Total Acreage 09459AC Building Square Feet _!/J?6i F!oodplilin Acre<Jge --2..!L__ __ .... Proiects that were vested pnor to January 1. / 08. per Chaplin 245 of ihe Texas Local Gove1nrne;i1 Code may oe asses:'>Y.J a diiferent amount Plr.asc (;Ont.act ci~{ :taff for addthonal inforn1ation '--------------------------------------·-······-----·······-······--·····- T.'J~ app/lcanl /)~::> µrep8;eci fhi .. -.; a• plicvtion and cprttfies tl'1aI tne-facts sratf:d t1P.rf!1t"! and 1£.·.dt1!"11U-ti:toc.:11t;<l !;t.;•1<.,·~) JN,,· trt,".: <ind G1Jff8G! ' ( ; ·' / ' / /, //._ : / ~ •.. ·. ....... ../ / ! ' ( . CERTIFICATIONS REQUIRED FOR ALL DEVELOPMENT Owner Certification: No work of any k1r.d may start until a permit is issued. 2. The permit may b~ re11oked 1f any talse statement~ <ire m<ide herein. 3 Ii revoked. all work must cease unt1i permtt 1s re-issued 4. Deve10pment shall not be used or occupied until a Certificate of Occupancy is issued 5. The permit will expire 1f no ->1gnif1cant work ts progressing wrth:n 74 months of issuance. 5 0\~1er permits may be required to fulfill local. state, and federal requirements. Owner w1t1 obt.:irn or show compliance w1ih all necessarf State and Federal Permits prior to construction including NOi and SVIJPPP ·r It r,,,uirod. Elevation Cert1frca!es will be provided with .;,:evattons ccrtrfierJ during construcl:cn (forms ~t slab pre- PQ•;r) and post construcllon 8 Owner hereb gtVes wnsent to C:ty rP.presentatives lo rn;.ikr; rca~-0nable 1nspecti<.)ns required to v{'rif1 compliance 9. If stormwater mit1gat:on is requir€:-d, >ncluding dctcnt:on poPds proposed as part of th•s pru:ect. ;; sllall be designed and constructed fust in lhe construction S<"?Qt.H?:nc« of the proiect 10. In accordrince with Chapter 13 of the Code of Ordinances of the City of College St<it1on. ~1eastrres sh•lli tx: lakr.n m insure thai all debris from construction. erosion, and sed1mentatron shall not be deposited :n c1t1 ~tr.~<"ls. or ;,,<>sting drarn<ige facn1t1"'" All development shall b<; in accord<.1nc~ with the plam; and spec1fic.a1:ons sut>mmr:<'l to :;inc .>pproved by the City engineer for Ul'" abOve n<lrnt:d p•GJect. Al: of the applie3ble codes <ind ordinance~· of tM C'ty ol College Sto:i!ion ~hall apply. 11 l Ile 1nlormatron and conclusions contained in tt1e <itlachea pians a:1d supporting documc1t5 wdl compfy with thf:' rnrrent n~urr<!ments of me Crty of Colfege Statron Texas City Code. Chapter 13 <>nd <3S5ooaterJ BCS Unifred Design Guidelims. T echn1cal Spedfication'3. and S!andard Details All oevelopment has bo:<en des•gnl'e<J '" ~cccrdance wit.~ all applicable codes and ordmances of rhe City of College Statton and Sli!!e and F "'r!eral Reguiations 12 Rele<ise of plar1s to {nome o; fmn) 1s authori.zed fm :J<dfJing purpc:;es oniy. I understand that final approval and release oi pl<iri:; ;Jnd dc:velo;irnent for construct;on is cont,ngent or. r;ontreictor signature on approved Development Permit 13 i. THE OWNER. AGREE TO AND CERTIFY THAT All STATEMENTS HEREIN. ANO IN ATTl<CHM£NTS F()f\ THE DEVELOPMENT PEHM!T APPLICATION. ARE TO THE BE.ST OF MY KNOWLEDGF TRUE ANO ACCURATE /. I , '·· ,I ·'~ ................. ;,,:---·-----·--···· Engineer Certification: The P'OJE:Ct has bee11 de~1g•1ed to ·~nsure that stormwate-r rnrt•gahon . 1:;r;lurl1ng detentK>r por:ds propc,·;cd e~; part ct tne pro1ec.t will bo i..:1">n~•tn1cr<'d first m the wnstruct10:"l Se<luence. :1 i will obtam or can shrn.v comph<incc with all nece:;sary L<.:c<:ll Stille and Federal Permits pnor to consrrur.tion 1nc1uc1ng NOi and SWPPP Dcsrqn w1il f\Ot prec1u·'t c.ornphanc.e with TPOES· : e . proiect,; over 10 a<"cs may r&qu:re a sed11nent<itio11 basin . •. i'!le 1nforrn<!t:on <1nc conclusions ccnta1nect in Ir-"' :rn<ictH;d plan-> and supporting documents comply wrih Ii''" currfmt re.qwcmc·nts of the C.ty of College Swucn. Texas City C•:xJe. Cllapter 13 and assocooted BCS Unified Dcsi~n Gu1d~!ines. All deve ·)pment has been designed m au::ordan•~ with all a;Jp!1Cdb!e <:.odes and 0rd1n«n<;.,.~ of the C:ty ci Coll~ge Static' and State arl-0 Federal Regulation" 4 I. THE ENGIN R AGRE TO ANO CERTIFY HAT ALL 1ATEMENTS HEREIN. AND IN r,TTACHMENTS FOH THE DE LOP E PERMIT PLICATION. TO THE BEST OF MY KNOT EDGF. TRUE. AND --__ _L-l7; 15 Engineer Date CITY 0 1' C o 1 ,1 .1-:Gi-: STATIOl\ Ho111c offo:11; Ai·M Uni11e1'.<ity" SITE PLAN MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: Sheet size -24" x 36" (minimum). A key map (not necessarily to scale). e block to include: Name, address, location, and legal description Name, address, and telephone number of applicant Name, address, and telephone number of developer/owner (if differs from applicant) Name, address, and telephone number of architecUengineer (if differs from applicant) Date of submittal Total site area Scale should be largest standard engineering scale possible on sheet. Ownership and current zoning of parcel and all abutting parcels. The total number of multi-family buildings and units to be constructed on the proposed project site. The density of dwelling units per acre of the proposed project. The gross square footage of all buildings and structures and the proposed use of each. If different uses are to be located in a single building, show the location and size of the uses within the building. Building separation is a minimum of 15 feet w/o additional fire protection. Locations of the following on or adjacent to the subject site: Designate between existing and proposed ~ D The density of dwelling units per acre of the proposed project. D Phasing . Each phase must be able to stand alone to meet ordinance requirements. D Buildings (Existing and Proposed). D Setbacks according to UDO, Article 5. Geography D Water courses. D 100 yr. floodplain and floodway (if applicable) on or adjacent to the proposed project site. Please note if there is none on the site with confirming FEMA/FIRM map number. D Existing topography (2' max or spot elevations) and other pertinent drainage information. (If plan has too much information , show drainage on separate sheet.) D Proposed grading (1' max for proposed or spot elevations) and other pertinent drainage information. (If plan has too much information, show drainage on separate sheet.) Revised 9/14 Page 7 of 11 reels, Parking, and Sidewalks Existing streets and sidewalks (R.O.W.). Existing Driveways, both opposite and adjacent to the site according to UDO, Article 7. Proposed drives. Minimum drive aisle width according to UDO, Article 7 Indicate proposed driveway throat length according to UDO, Article 7 Proposed curb cuts. D For each proposed curb cut (including driveways, streets, alleys, etc.) locate existing curb cuts on the same and opposite side of the street to determine separation distances between existing and proposed curb cuts. Proposed curb and pavement detail. O A 6" raised curb is required around all edges of all parts of all paved areas without exception. (To include island, planting areas, access ways, dumpster locations, utility pads, etc.) No exception will be made for areas designated as "reserved for future parking". Proposed medians. Proposed sidewalks (both public and private). Proposed pedestrian/bike circulation and facilities for non-residential buildings (UDO, Article 7). Off-Street parking areas with parking spaces drawn, tabulated, and dimensioned. O Designate number of parking spaces required by ordinance and provided by proposal. Handicap parking spaces. Parking Islands drawn and dimensioned with square footage calculated according to UDO, Section 7.2 or 7.9 fornon- residential buildings. Parking setback from R.O.W. to curb of parking lot as required. Wheelstops may be required when cars overhang onto property not owned by the applicant or where there may be conflict with pedestrian or bike facilities, handicap accessible routes or above ground utilities, signs or other conflicts. Security gates, showing swing path and design specs with colors. Guardrails. Include design and colors. Traffic Impact Analysis for non-residential development (UDO, Article 7). D Please note if none is required. O Will there be access from a TxDOT R.O.W.? O Yes O No If yes, then TxDOT permit mustibe submitted with this application. sements and Utilities Easements -clearly designate as existing or proposed and type (utility, access, etc.) Utilities (noting size and designate as existing or proposed) within or adjacent to the proposed site, including building transformer locations, above ground and underground service connections to buildings, and drainage inlets. Sewer Design Report (if applicable). Water Design Report and/or Fire Flow Report (if applicable). Drainage Report with a Technical Design Summary. Meter locations, existing and proposed (must be located in public R.O.W. or public utility easement). O Provide a water and sanitary sewer legend to include Minimum water demands Maximum water demands Average water demands in gallons per minute, and Maximum sewer loadings in gallons per day O 1 there be access from a TxDOT R.O.W.? O Yes D No If y s, then TxDOT permit must be submitted with this application. Revised 9/14 Page 8of11 Fire Protection D Show fire lanes. Fire lanes with a minimum of 20 feet in width with a minimum height clearance of 14 feet must be established if any portion of the proposed structure is more than 150 feet from the curb line or pavement edge of a public street or highway. D Show proposed and existing fire hydrants. Fire hydrants must be located on the same side of a major street as a project, and shall be in a location approved by the City Engineer. Any structure in any zoning district other than R-1 , R-1A, or R-2 must be within 300 feet of a fire hydrant as measured along a public street, highway or designated fire lane. NOTE: Fire hydrants must be operable and accepted by the City, and drives must have an all weather surface before a building permit can be issued. ~ D Will building be sprinkled? O Yes O No 0 ~ / If the decision to sprinkle is made after the site plan has been approved , then the plan must be resubmitted . If Yes, ~ D Show fire department connections. FD C's should be within 100' of the fire hydrant. They shall be accessible from the parking lot without being blocked by parked cars or a structure. Landscaping D Landscape plans as required in Article 7 of the Unified Development Ordinance. The landscaping plan can be shown on a separate sheet if too much information is on the original site plan. If requesting protected tree points, then those trees need to be shown appropriately barricaded on the landscape plan. Attempt to reduce or eliminate plantings in easements. Include information on the plans such as: 0 required point calculations O additional streetscape points required. Streetscape compliance is required on all streets. O calculations for # of street trees required and proposed (proposed street tree points will accrue toward total landscaping points.) O proposed new plantings with points earned O proposed locations of new plantings D screening of parking lots, 50% of all shrubs used for screening shall be evergreen . O screening of dumpsters, concrete retaining walls, off street loading areas, utility connection points, or other areas potentially visually offensive. O existing landscaping to remain O show existing trees to be barricaded and barricade plan. Protected points will only be awarded if barricades are up before the first development permit is issued. O Buffer as required in Article 7 of the Unified Development Ordinance. D Show irrigation system plan. (or provide note on how irrigation system requirement will be met prior to issuance of C. O.) All plans must include irrigation systems for landscaping. Irrigation meters are separate from the regular water systems for buildings and will be sized by city according to irrigation demand submitted by applicant and must include backflow prevention protection. O Is there any landscaping in TxDOT R.O.W.? O Yes 0 No If yes, then TxDOT permit must be submitted at the time of application. Other O Common open spaces sites 0 Loading docks 0 Detention ponds 0 Retaining walls D Sites for solid waste containers with screening .. Locations of d~mpste~s are a.ccessible but not visible.from streets or residential areas. Gates are discouraged and visual screening 1s required. (Minimum 12 x 12 pad required.) O Are there impact fees associated with this development? O Yes D No NOTE: Signs are to be permitted separately. Revised 9/1 4 Page 9 of 11 GATTIS ENGINEERING January 23, 2015 Erika Bridges, EIT Engineering Services City of College Station College Station, Texas 77845 ENGINEERS • CONSULTANTS Drainage Summary Letter RE: Southwest Place Retail Center 1712 Southwest Parkway, #100 College Station, Texas 77845 Dear Mrs. Bridges, This letter is to summarize the site drainage impact from the proposed parking lot expansion for the above referenced project. EXISTING CONDITIONS The Southwest Place Retail Center is located at 1712 Southwest parkway. The retail center consists of a 9,967 square foot retail building with surrounding parking on 0.9454 acres. Currently, all storm water run-off from the building and parking lot areas, including the adjoining Shipley's Donut Shop is captured in the parking lots areas and conveyed southwesterly to the southwest property comer of the Southwest Place Retail center. There is an existing 2' wide, 12" high raised curb opening that acts a weir that meter-releases the collected storm water runoff off-site to the adjoining apartment complex parking lot. The weir shows to be performing c01Tectly under all storm events as storm water currently ponds in the _parking lot during rain events. ony au:lic modeling of the curb-weir was performed with thi eport/ As stated above, storm water is discharged through the curb-weir and conveyed to the adjoining apartment complex through their parking lots areas and eventually combines with Bee Creek around the city cemetery. The subject property is not located in the 100 year FEMA floodplain per FEMA FIRM Map #48041C0310F, dated April 2, 2014. See attached Site Plan. PROPOSED SITE IMPROVEMENTS The Southwest Place Retail Center is acquiring 0.17 acres of land (t ough re-platting) adjacent to the property in the rear of the building. This tract will be ed to provi additional parking lot (7,444 sq. ft.) that contains 16 parking spots. The p constructed of 6" reinforced concrete pavement with raised curbs. This additional parking lot area will provide not only additional parking spots, but also additional storm water detention volume for any increases in storm water runoff as a result of the improvements. The 2' wide curb weir will remain in place to meter release storm water as it is currently performing today. See Tables 1 and 2 below. SITE HYDROLOGY SUMMARY The Rational Method ~ Q = C * I * A ~ was used for the hydrologic evaluation of the proposed site improvements. The Rainfall Intensity (I) was calculated based on the Texas Highway Department-Bridge Division Hydraulic Manual based on a Time of Concentration of Tc=lO minutes. As discussed above, the eacon Baptist Church onsists of impervious cover areas (retail building, sidewalks, parking ot area an a so pervious areas (landscaping and grassy areas). A run-off coefficient of C=0.9 was used for impervious areas and a run-off coefficient of C=0.35 for pervious areas. The adjusted run-off coefficient of C=0.84 was calculated for the complete site and used for hydrologic analysis. See Table 1. Area (acres) Coefficient (C) Tc Impervious Pervious Table 1 Hydrologic Data Summary Existing Pro(!osed 0.9459 ac 1.11 59ac 0.84 0.84 10 min. 10 min. 40,096 sf 46,639 sf 1,106 sf 1,977 sf +/- 0.17 ac +6,543 sf + 871 sf The 0.17 acre increase is the land acquired for the parking lot addition. Table 2 PEAK FLOWS ( cfs) SUMMARY Storm Existing Pro(!osed +/-Volume Increase Event cfs cfs c.f. 2 Yr 5.02 5.93 + 0.91 813 5 Yr 6.11 7.21 + 1.10 989 10 Yr 6.86 8.09 + 1.23 1,109 25 Yr 7.83 9.24 + 1.41 1,267 50 Yr 8.85 10.45 + 1.60 1,432 100 Yr 9.24 10.91 +l.67 1,496 Add'l Vol. Provided c.f. 3,722 3,722 3,722 3,722 3,722 3,722 CONCLUSSION As shown above in Table 2, there is a slight increase of storm water run-off maxing out at l .67 cfs due to the 7,444 sq uare foot parking lot addition. However, the additional parking lot also provides additional detention volume of 3,722 c.f. (7,444 sq ft x 6" curbs). Therefore, maintaining the existing 2' curb-weir as the current stormwater metering device in the parking lot area, there will not be any adverse effects to the adjoining property owners . . ,PE Lie sed Professional Engineer Attachments FIRM # 7698 • 2010 Moses Creek Ct. • College Station, Texas 77845 • Tel. 979.575.5022 • Fax 979.690.6888 Bee Cree SOUTHWOO DRIVE Bee Creek Tributary B.1 PROFILE BASELINE Unnamed Tributary 2 to Bee Creek Tributary B Bee Creek----i.-1-..- Tributary B PROFILE 26 BASELINE Bee Creek Tributary B PROFILE BASELINE MAP SCALE 1" = 1000' 0 1000 2000 3::E:i::::=:::::E=~3::==:E=3 FEET =::e=:1::====E=:=:=::::3 METERS 0 300 600 PANEL0310F FIRM FLOOD INSURANCE RA TE MAP BRAZOS COUNTY, TEXAS ANDINCORPORATEDAREAS PANEL 310 OF 475 (BE! MAP INO!X FOR FIRM PAN!!L LAYOU'T) ~ COMMUN!JY BRAZOS COUNTY 48111& 031Q COLI.EGE STATION. CITY OF 480083 0310 Nolle• to U1•r: Th• M•p Nu111b4lr al'lown b•law al'lould b• 11&11d wh1n pl1clng m1p order•; th• Comm1i1nlty N111nb1r 1hown 1b1>¥1 1hould 111 UHd on lnau,..nc• 1ppllc1tlon1 for lh1 1ubj1ct community. MAP NUMBER 48041C0310F MAP REVISED APRIL 2, 2014 Federal Emergency Management Agency This is an oflicilli copy of a portion of the abow referenced ftood map. It ('l waa axtrwcted using F-MIT On-Une. Thia map does net reftect changes ((\ or amendment& which may ha\18 been made aubaequent to the date on the <;:?, I'"' title block. For the lllteet product Information about National Flood Insurance ~ Progr-.m ftood mapa cheek tha FEMA Flood Map Stora atwww.mae.fama.gov ATTACHMENTS Hydraflow Table of Contents SW Center.gpw Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Watershed Model Schematic .................................................................................... 1 Hydrograph Return Period Recap ............................................................................ 2 2 -Year Hydrograph Reports ................................................. ................................................................ 3 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 -Year Hydrograph Reports ..................................................................... ............ .. .. ...... ........... ........... 4 Hydrograph No. 3, Combine, SW Center Combined .............................................................. 4 10 -Year Hydrograph Reports . . . . . . . . . . . . .... ... . . . . . . . . . ... . . . . . . . ... .. . . . . . . . . . ... . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 5 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 25 -Year Hydrograph Reports . ............................................ .. . . ................ ................ .. .............................. 6 Hydrograph No. 3, Combine, SW Center Combined .............................................................. 6 50 -Year Hydrograph Reports ........................................... ...... ................................... ............................. 7 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 100 -Year Hydrograph Reports ........................ ......................... ..................... ........... ... ...... .. ....... .............. 8 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 IDF Report .. .... ... ... . .... .... ........ .... .... ..... .. .... .... .... .... .... .... .... .... .. . .... .... .... .... .... .... .... .... ... 9 Watershed Model Schematic Legend .!:Im Oriain 1 Rational 2 Rational 3 Combine Description Existing SW Center P-Lot Addition 1 -Existing SW Center SW Center Combined 1 Hydraflow Hydrographs by lntelisolve v9.22 2 -P-Lot Addition 2 Hydrograph Return Period Recap Hydraflow Hydrographs by lntelisolve v9.22 Hyd. Hydrograph Inflow Peak Outflow (cfs) Hydrograph No. type Hyd(s) description (origin) 1-Yr 2-Yr 3-Yr 6-Yr 10-Yr 26-Yr 60-Yr 100-Yr 1 Rational ----5.027 --6.112 6.861 7.836 8.857 9.248 Existing SW Center 2 Rational ----0.903 --1.099 1.233 1.408 1.592 1.662 P-Lot Addition 3 Combine 1, 2 --5.930 --7.21 1 8.094 9.244 10.45 10.91 SW Center Combined 1 Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = Combine = 2 yrs = 1 min = 1,2 3 Friday, Jan 23, 2015 Peak discharge = 5.930 cfs Time to peak = 10 min Hyd. volume = 5,337 cuft Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd. No. 3 --2 Year Q (cfs) 6.00 --.------.-----.--.----.--.---r---.------.------.---.------.-----,,----,---.,-----,-6.00 1.00 0.00 ~=:::.....__J__ _ ___L._ _ ____L _ _____.l __ L__ _ _L_ _ _L_ _ _L_ _ _L _ _L _ ____l _ __JL___.L____.:::~~~ 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = = = = Combine 5 yrs 1 min 1, 2 4 Friday, Jan 23, 2015 Peak discharge = 7.211 cfs Time to peak = 1 O min Hyd. volume = 6,490 cuff Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd. No. 3 --5 Year Q (cfs) 8.00 .----.---.----.------r--.---..,..---,----r---r---....----..-~--~-~-~ 8.00 0.00 --51!!~_L_ _ _L _ __L _ __l _ __JL__J___..L__...J_ _ _L _ _L _ _J_ _ ____l __ L_.:::::::::'~~.i.... 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = = = = Combine 10 yrs 1 min 1, 2 5 Friday, Jan 23, 2015 Peak discharge = 8. 094 cfs Time to peak = 10 min Hyd. volume = 7,284 cuft Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd . No. 3 --1 O Year Q (cfs) 10.00 -.----.---r-----.-------r--.----,----,.---r----,-----,-------.------,--,----.....----.--10.00 0 2 4 6 8 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = Combine = 25 yrs = 1 min = 1,2 6 Friday, Jan 23, 2015 Peak discharge = 9.244 cfs Time to peak = 10 min Hyd. volume = 8,319 cuft Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd . No. 3 --25 Year Q (cfs) 10.00 --.-----.---.----.-----,.--,---.....----,------.-----..----.,----,..----,--..---~-~ 10.00 0.00 ~~_l_ _ __L _ __L _ __l __ L___j__ _ __L_ _ _l_ _ __!_ _ _J_ _ _J_ _ __J __ L_-=~~w.... 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. Q (cfs) = = = = Combine 50 yrs 1 min 1, 2 SW Center Combined Hyd. No. 3 --50 Year 7 Friday, Jan 23, 2015 Peak discharge = 10.45 cfs Time to peak = 1 O min Hyd. volume = 9,404 cuft Contrib. drain. area = 1.116 ac 12.00 .---r------r-----r-----.--..---~--.----.---.,----.-----,.----,,----..---..,....----.-- Q (cfs) 12.00 0.00 --=--_J_ _ __L_ _ __J_ _ ____..l __ L__ _ _L___....L._ _ _L_ _ __L.._ _ __L_ _ __l _ __JL___.L__---=~!!!!!!oo.Oa.l.., 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 nme (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = = = = Combine 100 yrs 1 min 1, 2 8 Friday, Jan 23, 2015 Peak discharge = 10.91 cfs Time to peak = 10 min Hyd. volume = 9,819 cuft Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd. No. 3 --100 Year Q (cfs) 12.00 .----.---,-----r------.--r---.-----.-----.----..---....----.,.--..----,.----~-~ 12.00 0.00 -.51!!~_J_ _ _L _ __L _ ____.l __ L__ _ _L_ _ _.l_ _ _J_ _ _L _ __L _ __i _ __JL__l__-=~~~ 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) • 9 Hydraflow Rainfall Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Return Intensity-Duration-Frequency Equation Coefficients (FHA) Period (Yrs) B D E (NIA) 1 0.0000 0.0000 0.0000 --2 65.0000 8.0000 0.8060 --3 0.0000 0.0000 0.0000 --5 76.0000 8.5000 0.7850 --10 80.0000 8.5000 0.7630 --25 89.0000 8.5000 0.7540 --50 98.0000 8.5000 0.7450 --100 96.0000 8.0000 0.7300 --File name: Brazos Rainfall-TxDOT.IDF Intensity = B I (Tc + O)AE Return Intensity Values (in/hr) Period (Yrs) 5min 10 15 20 25 30 35 40 45 50 56 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 8.22 6.33 5.19 4.43 3.88 3.46 3.14 2.87 2.65 2.46 2.30 2.17 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 9.85 7.69 6.38 5.48 4.83 4.33 3.93 3.61 3.34 3.12 2.92 2.75 10 10.98 8.63 7.19 6.21 5.49 4.94 4.50 4.14 3.84 3.59 3.37 3.18 25 12.51 9.86 8.23 7.12 6.30 5.67 5.18 4.77 4.43 4.14 3.89 3.68 50 14.10 11.15 9.33 8.08 7.16 6.46 5.90 5.44 5.05 4.73 4.45 4.20 100 14.76 11.64 9.73 8.43 7.48 6.75 6.16 5.69 5.29 4.95 4.66 4.41 Tc= time in minutes. Values may exceed 60. • ·--..,-. """" ,,_,,, ..... -•Y"-"~ -"'"'""'"'J '"an11c:u1-L-.,,11.uLA..1 Rainfall Precipitation Table (in) Stonn Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 0.00 4.50 0.00 6.20 7.40 8.40 9.80 11.00 SCS 6-Hr 0.00 3.33 0.00 0.00 0.00 0.00 0.00 7.90 Huff-1st 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 t • GATTIS ENGINEERING ENGINEERS + CONSULTANTS January 23, 2015 (Revised March 10, 2015) Erika Bridges, EIT Engineering Services City of College Station College Station, Texas 77845 Drainage Summary Letter RE: Southwest Place Retail Center 1 712 Southwest Parkway, # 100 College Station, Texas 77845 Dear Mrs. Bridges, ~~''''"· ~ ~E OF;~;'\\ ~C":>~~······~.s-''' I~··· * ·· .. *}i ~····················~ ~ JOE I. GATIIS 2 1··~··············:··1 't "\·· ( 90964 Q .·t; ~ .'O~e/ CE NS~.·~'<'~ \. ~~ • • • • • • • &-,,,.,,, ,~. SiONAL € ~ ''1 '~"__,,..... Digitally Signed on March 10, 2015. This letter is to summarize the site drainage impact from the proposed parking lot expansion for the above referenced project. EXISTING CONDITIONS The Southwest Place Retail Center is located at 1712 Southwest parkway. The retail center consists of a 9,967 square foot retail building with surrounding parking on 0.9454 acres. Currently, all storm water run-off from the building and parking lot areas, including the adjoining Shipley's Donut Shop is captured in the parking lots areas and conveyed southwesterly to the southwest property comer of the Southwest Place Retail center. There is an existing 2' wide, 12" high raised curb opening that acts a weir that meter-releases the collected storm water runoff off-site to the adjoining apartment complex parking lot. The weir shows to be performing correctly under all storm events as storm water currently ponds in the parking lot during rain events. No hydraulic modeling of the curb-weir was performed with this report. As stated above, storm water is discharged through the curb-weir and conveyed to the adjoining apartment complex through their parking lots areas and eventually combines with Bee Creek around the city cemetery. The subject property is not located in the 100 year FEMA floodplain per FEMA FIRM Map #48041C0310F, dated April 2, 2014. The original drainage report Drainage Report for Southwest Place Lot 2A-4, Block 1 dated June 1984 by Garrett Engineering was referenced for this drainage summary letter. See attached Site Plan. • PROPOSED SITE IMPROVEMENTS The Southwest Place Retail Center is acquiring 0.17 acres of land (through re-platting) that is adjacent to the property in the rear of the building. This tract will be used to provide an additional parking lot (7,444 sq. ft.) that contains 16 parking spots. The parking lot will be constructed of 6" reinforced concrete pavement with raised curbs. This additional parking lot area will provide not only additional parking spots, but also additional storm water detention volume for any increases in storm water runoff as a result of the improvements. The 2' wide curb weir will remain in place to meter release storm water as it is currently performing today. See Tables 1 and 2 below. SITE HYDROLOGY SUMMARY The Rational Method ~ Q = C * I * A ~ was used for the hydrologic evaluation of the proposed site improvements. The Rainfall Intensity (I) was calculated based on the Texas Highway Department-Bridge Division Hydraulic Manual based on a Time of Concentration of Tc=lO minutes. As discussed above, the Beacon Baptist Church consists of impervious cover areas (retail building, sidewalks, parking lot area) and also pervious areas (landscaping and grassy areas). A run-off coefficient of C=0.9 was used for impervious areas and a run-off coefficient of C=0.35 for pervious areas. The adjusted run-off coefficient of C=0.84 was calculated for the complete site and used for hydrologic analysis. See Table 1. Table 1 Hydrologic Data Summary Existing Proposed +/- Area (acres) 0.9459 ac 1.1159 ac 0.17 ac Coefficient (C) 0.84 0.84 --- Tc 10 min. 10 min. --- Impervious 40,096 sf 46,639 sf +6,543 sf Pervious 1,106 sf 1,977 sf + 871 sf The 0.17 acre increase is the land acquired for the parking lot addition. Table 2 PEAK FLOWS ( cfs) SUMMARY Add'l Vol. Storm Existing Proposed +/-Volume Increase Provided Event cfs cfs c.f. c.f. 2 Yr 5.02 5.93 + 0.91 81 3 3,722 5 Yr 6.11 7.21 + 1.10 989 3,722 10 Yr 6.86 8.09 + 1.23 1,109 3,722 25 Yr 7.83 9.24 + 1.41 1,267 3,722 50 Yr 8.85 10.45 + 1.60 1,432 3,722 100 Yr 9.24 10.91 +1.67 1,496 3,722 • • • CONCLUSSION As shown above in Table 2, there is a slight increase of storm water run-off maxing out at 1.67 cfs due to the 7,444 square foot parking lot addition. However, the additional parking lot also provides additional detention volume of3,722 c.f. (7 ,444 sq ft x 6" curbs). Therefore, maintaining the existing as-built 2' curb-weir as the current stormwater metering device in the parking lot area, there will not be any adverse effects to the adjoining property owners. Respectfully, GATTIS ENGINEERING, LLC Joe I. Gattis, PE Licensed Professional Engineer Attachments FIRM# 7698 • 20 I 0 Moses Creek Ct. • College Station, Texas 77845 • Tel. 979.575.5022 • Fax 979.690.6888 CERTIFICATION "I, Joe I. Gattis, PE #90964 certify that this report for the drainage design for the Southwest Place Retail Center Project in College Station, Texas, was prepared by me in accordance with the provisions of the Bryan/College Station Unified Stonnwater Design Guidelines for the owners thereof. All licenses and pennits required by any and all state and federal regulatory agencies for the proposed drainage improvements have been issued." ~ o-0~;4/2015 Joe I. Gattis, P.E., PE #90964 GATIIS CERTIFICATION "I, Joel. Gattis, PE #90964 certify that this report for the drainage design for the Rock Prairie Professional Office Complex Project in College Station, Texas, was prepared by me in accordance with the provisions of the Bryan/College Station Unified Stormwater Design Guidelines for the owners thereof. All licenses and permits required by any and all state and federal regulatory agencies for the proposed drainage ;mpmvoments have been ;ssued." ~ Joe I. Gattis, P.E., PE #90964 GATTISEl\G NEERll\G ENGINEER. • CONSULTANTS ATTACHMENTS - Bee Cree SOUTH WOO DRIVE I!) 0 (") 0 Bee Creek Tributary B. I PROFILE BASELINE - Unnamed Tributary--.....o;::::::,,,,m111 2 to Bee Creek Tributary B Bee Creek---++--MI Tributary B PROFILE 269 BASELINE Bee Creek Tributary B PROFILE BASELINE --- -- MAP SCALE 1" = 1000' 0 1000 2000 ~3::::::E::i::::::=:::E=::=::3:::::=:::E=:::::3FEET ~:=E=::c:::=:=:=:=E=::=::==~ METERS 300 600 0 PANEL 0310F FI RM 0.2 % ANNUA FLOOD INSURANCE RATE MAP CHANCE FLO DISCHARGE CONTAINED IN CULVERT BRAZOS COUNTY, TEXAS AND INCORPORATED AREAS PANEL 310 OF 475 (SEE MAP INDEX FOR FIRM PANEL LAYOUT) ~ COMMUNITY BRAZOS coumv -ts1195 0310 COu.EGE STATION, CITY OF 4'80083 0310 Notice to UHr: Th• M•p Number shown below should be uud when piecing mtp orders; the Community Number shown above ahoul<I be used on insurance 1pp1lcallon1 for the subject community. MAP NUMBER 48041C0310F MAP REVISED APRIL 2, 2014 Federal Emergency Management Agency This Is an official copy of a portion of the above referenced ftood map. It () was extracted using F-MIT On-Line. This map does not reftect changes () ~ or amendments which may haw been made subsequent to the date on the ::;; r" title block. For the latest product information about National Flood Insurance ,.., Program ftood maps check the FEMA Flood Map Store at www.msc.fema.gov Hydraflow Table of Contents SW Center.gpw Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Watershed Model Schematic .................................................................................... 1 Hydrograph Return Period Recap ............................................................................ 2 2 -Year Hydrograph Reports ................................................................................................................. 3 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . 3 5 -Year Hydrograph Reports ................................................................................................................. 4 Hydrograph No. 3, Combine, SW Center Combined .............................................................. 4 10 -Year Hydrograph Reports ................................................................................................................. 5 Hydrograph No. 3, Combine, SW Center Combined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 25 -Year Hydrograph Reports ................................................................................................................. 6 Hydrograph No . 3, Combine, SW Center Combined .............................................................. 6 50 -Year Hydrograph Reports ................................................................................................................. 7 Hydrograph No. 3, Combine, SW Center Combined .............................................................. 7 100 -Year Hydrograph Reports ................................................................................................................. 8 Hydrograph No. 3, Combine, SW Center Combined . . .. . . .. . . . . . . . . . . . . . . .. . . .. . . . . . . . . . . . . . . . . . . . . .. . . . . . ..... .. 8 I OF Report . .. .. . . . . . . . .. . . . . .. . . . . . . . . . . . . .. . . .. .. . . .. . . . .. . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . ... . . . . . . . . . .. . . 9 • Watershed Model Schematic Legend Hvd. Origin 1 Rational 2 Rational 3 Combine Description Existing SW Center P-Lot Addition 1 -Existing SW Center SW Center Combined Project: SW Center.gpw 1 Hydraflow Hydrographs by lntelisolve v9.22 2 -P-Lot Addition Friday, Jan 23, 2015 2 ~ Hydrograph Return Period Recap Hydraflow Hydrographs by lntelisolve v9.22 Hyd. Hydrograph Inflow Peak Outflow (cfs) Hydrograph No. type Hyd(s) description (origin) 1-Yr 2-Yr 3-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1 Rational -------------5.027 -----6.112 6.861 7.836 8.857 9.248 Existing SW Center 2 Rational ----0.903 --1.099 1.233 1.408 1.592 1.662 P-Lot Addition 3 Combine 1,2 --5.930 --7.211 8.094 9.244 10.45 10.91 SW Center Combined Proj. file: SW Center.gpw Friday, Jan 23, 2015 3 ~ Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Hyd. No. 3 • SW Center Combined Hydrograph type = Combine Peak discharge = 5.930 cfs Storm frequency = 2 yrs Time to peak = 10 min Time interval = 1 min Hyd. volume = 5,337 cuft Inflow hyds. = 1, 2 Contrib. drain. area = 1.116 ac ~ SW Center Combined • Q (cfs) Hyd. No. 3 --2 Year Q (cfs) 6.00 ~-~-~-~-~--~-~-~-~-~-~-~-~------~ 6.00 0. 00 --.k!!.::....__L._ _ _J_ _ _j_ _ __L _ __JL___.J..__...L._ _ _L_ _ _J_ _ __L_--1.. _ ____.l __ l___~~al-0. 00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo. 2 Time (min) 4 Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Hyd. No. 3 SW Center Combined Hydrograph type = Combine Peak discharge = 7.211 cfs Storm frequency = 5 yrs Time to peak = 10 min Time interval = 1 min Hyd. volume = 6,490 cuft Inflow hyds. = 1, 2 Contrib. drain. area = 1.116 ac ~ SW Center Combined Q (cfs) Hyd. No. 3 --5 Year Q (cfs) 8. 00 -.-----.----,...----,,---.------.------,-----,...--,---.------.------,-----,...--.----.-----~ 8. 00 0.00 ~~__.!_ _ ___L _ __JL__ _ _J__ _ _J_ _ __.!_ _ ___L __ L__ _ _J__ _ _l_ _ ___L _ ___J_ __ L_--=~~~ 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) 5 Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Hyd. No. 3 • SW Center Combined Hydrograph type = Combine Peak discharge = 8.094 cfs Storm frequency = 10 yrs Time to peak = 10 min Time interval = 1 min Hyd . volume = 7,284 cuft ~ Inflow hyds. = 1, 2 Contrib. drain. area = 1.116 ac SW Center Combined Q (cfs) Hyd. No. 3 --10 Year Q (cfs) 10.00 ..----.----,..-----,,---...,----,-----.------,---.---.,----,-----.---,.--,-----.,------r-10. 00 0.00 --5"!=-_l_ _ __L __ L___.J__ _ __L_ _ _j_ _ __L __ L___.J__ _ _L_ _ _J_ _ __.l __ .L..__--=~~~ 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo.3 -HydNo.1 -HydNo.2 Time (min) 6 • Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Hyd. No. 3 • SW Center Combined Hydrograph type = Combine Peak discharge = 9.244 cfs Storm frequency = 25 yrs Time to peak = 10 min Time interval = 1 min Hyd . volume = 8,319 cuft Inflow hyds. = 1, 2 Contrib. drain. area = 1.116 ac • SW Center Combined • Q (cfs) Hyd. No. 3 --25 Year Q (cfs) 10. 00 --.-----.-----.---,---.-------r-----.-----.---,c----.-------,.---..---~-~r---~-~ 10.00 4.00 0. 00 --::::....._---'------'---L__-...L__--'------'------'---L__-...L_ _ __l___---1._ _ __i __ L__..r:::=~;ai_ 0. 00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo. 3 -HydNo.1 -Hyd No. 2 Time (min) 7 • Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Hyd. No. 3 • SW Center Combined Hydrograph type = Combine Peak discharge = 10.45 cfs Storm frequency = 50 yrs Time to peak = 10 min Time interval = 1 min Hyd. volume = 9,404 cuft • Inflow hyds. = 1, 2 Contrib. drain. area = 1.116 ac t Q (cfs) SW Center Combined Hyd. No. 3 --50 Year Q (cfs) 12.00 12. 00 --.---.-----,------r------.--.---,---.----.------.-----.----,.----,r---,-------r----r- 10.00 0.00 ~~__l_ _ _L _ ___l. _ ____.l __ L__ _ _L__ _ _L_ _ _L_ _ _L _ _J_ _ __l _ __JL___L_-=~~:w.... 0.00 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -HydNo. 3 -HydNo.1 -Hyd No.2 Time (min) Hydrograph Report Hydraflow Hydrographs by lntelisolve v9.22 Hyd. No. 3 SW Center Combined Hydrograph type Storm frequency Time interval Inflow hyds. = = = = Combine 100 yrs 1 min 1, 2 8 Friday, Jan 23, 2015 Peak discharge = 10.91 cfs Time to peak = 10 min Hyd. volume = 9,819 cuft Contrib. drain. area= 1.116 ac • Q (cfs) SW Center Combined Hyd. No. 3 --100 Year Q (cfs) 12.00 12.00 ~-~-~-~-~---.----,.---...,..--~-~-~-~-~--~-~-~ • 0 2 4 6 8 10 12 14 -HydNo. 3 -HydNo.1 -HydNo.2 Time (min) 9 • Hydraflow Rainfall Report Hydraflow Hydrographs by lntelisolve v9.22 Friday, Jan 23, 2015 Return Intensity-Duration-Frequency Equation Coefficients (FHA) Period (Yrs) B D E (N/A) 1 0.0000 0.0000 0.0000 -------- 2 65.0000 8.0000 0.8060 ------- 3 0.0000 0.0000 0.0000 ---- 5 76.0000 8.5000 0.7850 ---- 10 80.0000 8.5000 0.7630 ----- 25 89.0000 8.5000 0.7540 -- 50 98.0000 8.5000 0.7450 ------- 100 96.0000 8.0000 0.7300 ------ File name: Brazos Rainfall-TxDOT.IDF Intensity = BI (Tc + D)"E Return Intensity Values (in/hr) Period (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 8.22 6.33 5.19 4.43 3.88 3.46 3.14 2.87 2.65 2.46 2.30 2.17 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 9.85 7.69 6.38 5.48 4.83 4.33 3.93 3.61 3.34 3.12 2.92 2.75 10 10.98 8.63 7.19 6.21 5.49 4.94 4.50 4.14 3.84 3.59 3.37 3.18 25 12.51 9.86 8.23 7.12 6.30 5.67 5.18 4.77 4.43 4.14 3.89 3.68 50 14.10 11 .15 9.33 8.08 7.16 6.46 5.90 5.44 5.05 4.73 4.45 4.20 100 14.76 11 .64 9.73 8.43 7.48 6.75 6.16 5.69 5.29 4.95 4.66 4.41 Tc= time in minutes. Values may exceed 60. fi Precio. 1le name: Brazos Countv Rainfall-24hr.pcp Rainfall Precipitation Table (in) Storm Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 0.00 4.50 0.00 6.20 7.40 8.40 9.80 11 .00 SCS 6-Hr 0.00 3.33 0.00 0.00 0.00 0.00 0.00 7.90 Huff-1st 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 • Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 DRAINAGE REPORT FOR SOUTHWEST PLACE Lot 2A-4, Block 1 COLLEGE STATION BRAZOS COUNTY, TEXAS • • GJ.\RRE'fI E i'lG I i'I EE RI i'I G CCN8ULTING ENGINEERIN G & LAN O SURVEYING 11511!0 CAVITT AVE. • Ra. aax 4083 • BRYAN, TEXAS 778015 • C71 3> Bli!&!-1!!1487 C713) BRR·l!5387 PRE-DEVELOPMENT The project site consists of a 0.95 acre tract located along the Southeast right-of-way line of Southwest Parkway, 400 feet southwest of the intersection between Texas Avenue and Southwest Parkway. The site slopes at approximately 1.4% towards the South. Grass and weeds cover the tract at this time.· PROJECT DESCRIPTION The developer of this tract proposes to construct a Cornmerical Office with concrete parking and drive areas. POST-DEVELOPMENT Natural grading will be matched as much as possible allowing runoff to remain in the same general direction as existing conditions. The paved area near the back of the site will be used for Storm Water Detention. Building and parking areas will be graded to drain towards a detention facility. METHOD OF ANALYSIS A detention pond was selected as the method to be used for runoff control. Runoff was calculated using the methods outlined in the ''Hydraulic Manual" prepared and compiled by the "Texas Highway Department -Bridge Division for Brazos County." The runoff was th~n converted ,to a triangular hydrograph by plotting the peak flow vrs. the time of concentration. The rescinding leg of the hydrograph was set at a length equal to 1.67 times the time-of- concentration. This hydrograph was then routed through the detention pond using the storage indication method. A broad-crested weir was selected as the outlet control structure. CONCLUSION The allowable peak runoff for a 5 year design strom was calculated to be 2.8 c.f.s •• Detention reduced the peak runoff from 9.0 c.f.s. to 2.5 c.f.s. with a depth of 0.75 feet at the outlet control structure. This reduction in runoff due to detention meets the City requirements for a stormwater control. A small part of the runoff was directed to the adjoining property (Lot 2A-3), of which a drainage report had been previously submitted. ) This flow of 0.5 cfs for a 5 year storm was imposed on the present design, yielding a discharge of 1.0 cfs. The pre-development flow is 1.1 cfs; therefore, the present design was not affected. R U N N 0 F F C A L C U L A T I 0 N S PRE-DEVELOPMENT Green Area = 0.95 acres ( C = 0.3) Paved and building area = o.oo acres (C = 1.0) TIME OF CONCENTRATION = 5' minutes ' (minimum) INTENSITY (5 yr.) = 9.85 0 = C.I.A. = (0.3)(9.85)(0.95) = 2.8 c.f.s. POST-DEVELOPMENT Green Area = o.oo acres (C = 0.3) Paved and building area = 0.90 acres (C = 1.0) TIME OF CONCENTRATION = 5 minutes (minimum) INTENSITY ( 5 yrs.) = 9.as Q = C.I.A. = (1.0)(9.85)(0.90) = 8.9 c.f.s. Addition flow to lot 2A-3 Paved Area = .05 acres (C=1.0) TIME OF CONCENTRATION = 5 minutes (minimum) INTENSITY (5 yr.) = 9.85 a= C.I.A. = (1.0)(9.85)(.05) = .5 c.f.s • ....____ _______ GJ.\RRE~rr Ei'tGli'tEERU IG -------- SN .0 .1.L v1n -o.1vo :· lOHlNQ~ .. 13llnO . ,. . ... · . . ... 11$"2.=~ ~S,i,:{pj ICl"Z=~ . . I E'~, =t?: 6~i' ·t1 IL "(j =~ 6E~=d P/"o=~ ~Lt?•# . . .' LrJ :'# 'P.~ ~n.. , I . ~~~M P~=H, 'E"O •N z·t7 • H I "t7• H 1V ~L~1rH 'Sjl':J 19? = ..7'.Ll/d'/110?..f : /Y.31/115 ~H 7 LBO'E = (<P) .;'~b'J'/iloY • • DEPTH (FT) 0 0 0 0 p b N ~ en Q) 0 i • 0 ~ • 0 m • 0 t: ;- -I I\) .,, r :c • 0 =e -m en )> -0 n .,, (/) < .,.._ . -1\) (/) b • I ·o - f\) en ~ 0 ·x .)> lJ !'> ·m CX> ,J STORAGE INDICATION COMPILATION TABLE ~t= Min. Basin t Storage Sz Head Oz (cfs-min.) Qz. ~ ~+~ (ft.) (cfs) (ft+ 60) 2 Af At 0 0 .00 0 0.0 0.0 0.0 0.0 0./ 0.1¢ /0 0.2 0.07 o.z 0 . .3 0.2 0 .39 74 /.Z O.cO IZ /.¢ 0.3 0 .7/ ?79 ¢.~ 0.3(&, 4~ 5-0 04 /.09 ?92. 9.9 0 .-5? . 9.9 /0.-5 O.? /.?3 1040 /7.3 0.77 /7.3 /B. I a~ Z.01 /~62 Zl.7 /.01 27.7 -ce.7 0.7 Z.?3 c42Z 40.4 l.c7 ¢0.¢ ¢/. 7 0.7? e.e1 ZB37 ¢7.3 /.4/ ¢7.3 48.7 • --- · i STORAGE Vs·~ DEPTH 0.8 0 .6 ........ t-= LL - :I: 0.4 .... a. LIJ 0 0.2 0.0 ------....---.---....... --..----.~---.------.---0.0 400 800 1200 1600 2000 . 2400 2800 STORAGE {Fi3 ) -~ 8 (\J 0 lJJ (.!) a:: <{ :I: u en -Q • • .. ---3.0 2.5 2.0 STORAGE INDICATION, 1.5 1.0 0.5 0.0 -'--------.....--~--~--....-----0 10 20 40 50 • ~~~~JJ~-~~~:W~~~fUNG _ STORAGE ROUTING COMPUTATION, 5-YEAR STORM 'n Avg. Inflow te t+I, ~+Qi. ..§i+ Oa 'v 01 Time Inflow I 2 At 2 0, At 2 o~ (Min.) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) A • J I /.8 0.9 /.8 0.4 2 2 3."' 2.7 /.8 OJ/. 4./ 0.(p 3 3 -5.4 4.5 ¢./ 0. (;:, 8.0 CJ.9 4 4 . 7.Z 6.3 8.0 0.9 13.4 /.3 5 5 9.0 8./ 13.4 /.3 C'tJ. 2 /.h 6 ~ 7.9 8.? C'0.2 /.~ 27.I c.O • 7 7 6.8 7.1-c7.I 2.0 32.'5' c.Z 8 .-d S.8_ ~3-3Z.-5 c.z. 30.(p 2~3 9-9 4.7 ?.3 30.<s:. 2.3 39.~ Z.5 10 -10 .3.(p 4..Z 39.~ Z'.? 41.3 .?.? II II. e.? 3.1 ¢1.3 C'.? 4/.9 C..-5' t 12 /Z /.? ?.() ¢1.9 C.5 -. ¢/ct C.? 13 13 0.¢ 1.0 ¢/.¢ ?.-5 39.9 C.5 14 14 0 0.2 39.9 C'.? 37.~ ?.4-15 -I? 0 0 37.&, C'.4. .Y'5.Z 2.3 16 /ft:> 0 0 3?.Z c?.3 3C.9 C'.2 17 . 17 0 0 3?.9 e.z 30.7 2.1 18 18 0 0 3a7 2.1 28.(p c.o 19 20 21 22 23 24 25 26 27 28 ·29 30 31 32 33 34 35 36 37 38 39 40 -en LL. (.) - ~ 0 _J L&.. 10.0 8.0 6.0 4.0 2.0 • • • --- INFLOW AND OUTFLOW HYDROGRAPHS Inflow Hydrogroph (Post Development) Maximum Allowable ;Outflo~ -· From Detention Area·;: 2.81 cfs Outflow Hydrograph (l:Ost-Developm ent w/ Detention) _..,.--Outflow ~ Hydrograph (Pre-Development) o.o.i.::;... ____________ .,... ______ "'1-______ ..,.._ ______ ..,.._ ______ .,.... __ ..... __ .,... ____ __ 0 2 4 6 8 10 12 14 HYDRO GRAPH TIME (MIN.) -(/) u.. 8 ~1.2 0 .. w (!) 0: <1: 0. J: (.) (/) cs 0.4 • --- STORAGE INDICATION LOT . 2A.-·3 -. 0-'-----...------.-----....------,-----.------,......----0 4 8 12 16 20 24 S2 + 022 ' (CFS) .0.t .· STORAGE ROUTING COMPUTATION, 'n Avg. Inflow t, I1+I1 ~+.21 'v Time Inflow I 2 At . 2 0, I (Min.) Ccfs) (cfs) (cfs) J I o.a 0.4 2 2 /.~ /.2 0 .8 3 3 e.-5 z.1 /.9 4 <1-.3.3 Z..9 3.8 5 5 4.1 3.7 6.¢ 6 ~ .3.~ .3.9 9.7 .,, 7 3.1 .3.4-1.3./ 8 8 C'.U, t:?.9 /?.9 9 9 Z.I c.4 /8./ JO 10 /.4' /.9 19.7 .. II II /Z 14 ?0.7 12 IZ 07 /.(} c12 13 /3 o.z O.? 21.Z 14 /'1 0 0.1 C'0.7 15 /? 0 CJ /9.9 16 I&. 0 0 19.0 17 17 0 CJ /8./ 18 18 0 0 17.3 19 /9 0 0 lb.? 20 zo · 0 0 /?.7 21 22 23 24 25 26 27 28 ·29 30 . 31 32 33 34 35 36 37 38 39 40 0. 5 cfs imposed on Present design of . Lot 2A-3 5-YEAR STORM o. -2t+.Qa At 2 0, (cfs) (cfs) Ccfs) 0.8 0./ 0.1 /.9 O.<! 0.2 3 .8 0.3 0.3 6.4 0.4 0.4 9.7 0.'5 0.5 13.I 0.<P o.~ P5.9 0.7 0.7 18./ 0.8 08 /9.7 09 09 co.? 0.9 0.9 21.2 J .0 1.0 c/. z J .O 1.0 C'0.7 0.9 0.9 19.9 0 .9 0.9 190 0 .9 0.9 /8./ 08 0.8 17.3 0 .8 0.8 16.-5 0.8 0.8 l?.7 0.7 0.7 P5.0 0.7 4 en 3 u.. (.) ~ ..:J 2 .U.. 0 2 INFLOW .AND OUTFLOW HYDROGRAPHS Inflow Hydrograph Post-Development w/ Additional flow from Lot 2A-4 ...... ~_Inf low Hydrograph ·, Post -Development Maximium Allowable Outflow £from Detention Area= l.09c.f.s. 4 6 8 10 HYOROGRAPH TIME, MIN. LOT 2·A-3 12 Outflow Hydrograph (Post-Development w; Detention) Out.fl9w Hydrog.raph ( P.re-9evetopmen~). 14 DATE: TO: FROM: February 23, 2015 CITY OF C OLLEGE STATION Home of Texas A6M University" MEMORANDUM Joe Gattis, PE, Gattis Engineering, via; joe@gattisengineering.com Mark Bombek, Staff Planner SUBJECT: SOUTHWEST PLACE PARKING LOT IMPROVEMENT Staff reviewed the ave-mentioned site plan as requested. The following page is a list of staff review comme detailing items that need to be addressed. Please address the comments and submit the fa owing information for further staff review: /£cf College Station Transmittal Letter; 2 ~·~Jm~ providing written responses to all of staff's comments (identify the specific page that each comment was addressed on or the reason for not addressing the / comment); __ One (1) complete sets of site civil construction documents for the proposed development with the revised site and landscaping plans attached (one set will be returned to you , please submit additional copies if you want more than one /approved set); --I Two (2) 24"x36" revised site plans; __ ./_ One (1) 24"x36" grading and erosion control plan ; 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 there are comments that you are not addressing with the revised site plan, please attach a letter explaining the details. If you have any questions or need additional information, please contact *Not Assigned* at 979.764 .3570. Attachments: Staff Review Comments PC : Jerry Skibell, via; jerry@skibellproperties.com P&DS Project No. 15-00900024 Pla1111i11g e!r Dez•elop111em Services !'.~). B~)X'1%0 ·I IOI TFX·\.\ \\'L'.H'f· • <. 1 l[ [ H,!' ..;·1xrniN · Tl'XA'\. ··7~!.2 lTL ') <l.7<1'1.:\·~ '(' • 1::\X •J""i."(>·i. )l'J(, csbt.gov/dev~;ervices STAFF REVIEW COMMENTS NO. 1 Project: Southwest Center Parking Lot Improvement 15-00900024 0¥-PLANNING ~\?QQJ'1 1. Title block-The title of the project on the plans state 'Southwest Place Parking Lot Improvements' and the application states 'Southwest Center Parking Lot Improvements.' Please re-submit page one of the application to revise the name of the project as stated on the site plan to state Southwest Place Parking Lot Improvements. /2. There is a row of parking in the rear that is indicated 8 spaces. Upon counting, there are only 7 spaces indicated. Please revise the count. ,,,-3. In the parking analysis, it shows a total of 64 spaces proposed. The total count only shows 60 spaces. Please revise the total proposed count. ~4. Please remove the lines of the existing parking spaces that are being removed and replaced ~l.(foi:. /He 5 · t;Jl~~IL :C'"-At-J{) /6. /7_ with the 3 parallel spaces. The division at the back of the parking lot separating the new addition from the existing parking spaces only shows separation with a 6-inch raised curb. Being a safety concern, the curbing needs to be removed along the end of the parking spaces. The curbed islands should stay in place. Are there any proposed parking light fixtures for the new lot addition? Please be aware that since this project require a Minor Plat which is being processed und project number, 15-16 this site plan will not be approved until the Mylar has been filed and the subject tract has been legally obtained . / 8. As an FYI, with the additional parking spaces the intense use parking requirement is now in compliance, however future intense uses would not be authorized to occupy space as the restaurant is fulfilling the 25% allowance. v 9. Provide a general note on the site plan that states the following: Exterior building and site lighting will meet the standards of Section 7.11 of the Unified Development Ordinance. The light source shall not project below an opaque housing and no fixture shall directly project light horizontally. Fixtures will be mounted in such a manner that the projected cone of light does not cross any property line. / 10. 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. Any additional changes on these plans that the City has not be made of aware of will constitute a completely new review. Reviewed by: Mark Bombek Date: 02-06-2015 LANDSCAPING/STREETSCAPING/BUFFER v 1. Provide a general note that 100% coverage of groundcover, decorative paving , decorative rock (not loose), or a perennial grass is required in parking lot islands, swales and drainage areas, the parking lot setback, rights-of-way, and adjacent property disturbed during construction. Reviewed by: Mark Bombek Date: 02-06-2015 .. - ENGINEERING COMMENTS NO. 1 1. Please show and clearly label existing and proposed contours on Lot 2A-4 and the new parking lot. 2. Provide an erosion control measure at the end of the proposed drainage flume. 3. Show and label all easements on site. 4. It is not clear how the parking lot is proposed to be graded based on the minimal spot elevations provided. Please provide additional shots throughout the proposed parking lot. 5. Please include City Standard Details for erosion control. 6. Drainage Report -The drainage report needs to reference the original 1984 report. 7. Drainage Report -Please include the standard drainage certification from the BCS Unified Stormwater Design Guidelines in the report. 8. FYI. .. Please note that this is an abbreviated drainage report and would not typically be acceptable for most developments without additional information. Based on the scope of this project, however, an abridged analysis is probably appropriate. Reviewed by: Erika Bridges Date: 02-19-2015 SANITATION 1. Sanitation is ok with this project. Reviewed by: Wally Urrutia Date: 01-29-2015 FIRE 1. Fire is ok with this project Reviewed by: Raymond Olson Date: 02-18-2015 GATTIS ENGINEERING $ $ March 10, 2015 MarkBombek Development Services City of College Station 1101 Texas A venue CoJJege Station, Texas 77845 ENGINEERS + CONSULTANTS Re: SOUTHWEST PLACE PARKING LOT IMPROVEMENT Dear Mr. Bombek, Below is a I ist of responses to the requested revisions for the Final Plat. Planning Services I. The Title Block has been revised for correctness. 2. I revised the ' 8 ' parking to ' 7 '. 3. The parking analysis was corrected; however the total proposed count is 62 because of the drive thru queue spots. 4. The vertical parking lines were removed as requested. 5. The existing 6" curb has been removed for safety. Islands will remain intact. 6. There will not be any proposed stand-alone light fixtures for the parking lot addition. 7. Comment noted, client informed. 8. Parking intensity comment noted and client informed. 9. General Note #12 was added. 10. Comment noted and client infonned. Landscaping/Streetscape 1. General Note #13 was added. Engineering Services l. There is only one existing contour on the property (front and back) and it is shown. Property is extremely flat. The proposed contour 278 'was added for clarity. Additional top of curb elevations were added to the middle island as well. 2. Hay bales were added to the end of the drainage flume for erosion protection. 3. All easements and setbacks were added. 4. Additional top of curb elevations were added to the middle parking is land as well as drainage arrows illustrating drainage flow. 5. City Standard Sheet SWPP has been added to plans. Hay bale detail was removed. 6. I added a 'reference' to the 1984 report. I also added the 1984 as an attachment. 7. Standard Certification was added. 8. Comment Noted. Respectfully, GATTIS ENGINEERING, LLC Joe I. Gattis, PE ~ Licensed Professional Engineer $ FIRM # 7698 • 2010 Moses Creek Ct. • College Station, Texas 77845 • Tel. 979.575.5022 • Fax 979.690.6888 $