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HomeMy WebLinkAboutFP2007-500245C ITY O F COLLEGE STATION Planning & Development Services FOR OFF~E USE ONLY P&Z CASE No.: u1 · M5 DATE SUBMITTED: Io · o~ · 01 FINAL PLAT APPLICATION (Check one) D Minor ($300.00) D Amending ($300.00) [8J Final ($400.00) D Vacating ($400.00) D Replat ($600.00)* *I ncludes public hearing fee Is this plat in the ET J? [8J Yes D No The following items must be submitted by an established filing deadline date for P&Z Commission consideration. MINIMUM SUBMITTAL REQUIREMENTS: __x_ Filing Fee (see above) NOTE: Multiple Sheets -$55 .00 per additional sheet N/A Variance Request to Subdivision Regulations -$100 (if applicable) N/A Development Permit Application Fee of $200 .00 (if applicable). N/A Infrastructure Inspection Fee of $600 .00 (applicable if any public infrastructure is being constructed) __x_ Application completed in full. __x_ Copy of original deed restrictions/covenants for replats (if applicable). Fourteen (14) folded copies of plat. (A signed mylar original must be submitted after staff review.) NIA One (1) copy of the approved Preliminary Plat and/or one (1) Master Plan (if applicable). __ Paid tax certificates from City of College Station , Brazos County and College Station l.S.D. __x_ A copy of the attached checklist with all items checked off or a brief explanation as to why they are not. __x_ Two (2) copies of public infrastructure plans associated with this plat (if applicable). N/A Parkland Dedication requirement approved by the Parks & Recreation Board , please provide proof of approval (if applicable). Date of Preapplication Conference: Unknown NAME OF SUBDIVISION : Duck Haven Subdivision , Phase 5 SPECIFIED LOCATION OF PROPOSED SUBDIVISION : End of Retriever Run APPLICANT/PROJECT MANAGER 'S INFORMATION (Primary Contact for the Project): Name : Travis Martinek Street Address : 3608 East 29th Street, Suite 100 State : Texas Zip Code : 77802 Phone Number: (979) 846-4384 City : Bryan E-Mail Address : travis@clarkewyndham.com Fax Number: (979) 846-1461 PROPERTY OWNER'S INFORMATION (ALL owners must be identified. Please attach an additional sheet for multiple owners): Name: Duck Haven, Ltd. Street Address : 3608 East 29th Street, Suite 100 State : Texas Zip Code : 77802 Phone Number: (979) 846-4384 ARCHITECT OR ENGINEER 'S INFORMATION : Name : McClure & Browne Engineering/Surveying, Inc. Street Address : 1008 Woodcreek Drive, Suite 103 State : Texas Zip Code : 77845 Phone Number: (979) 693-3838 6/13/03 City : Bryan E-Mail Address : travis@clarkewyndham.com Fax Number: (979) 846-1461 City : College Station E-Mail Address : mikem@mcclurebrowne.com Fax Number: (979) 693-2554 I of4 Do any deed restrictions or cove •• w 1ts exist for this property? Yes Is there a temporary blanket easement on this property? If so , please .~ovide the Volume ____ and Page# __ _ Acreage -Total Property: 19 .96 Total# of Lots : 15 R-0-W Acreage: 1.52 Existing Use: Vacant Agriculture Number of Lots By Zoning District Single Family Residential Average Acreage Of Each Residential Lot By Zoning District: ___ / / __ _ Floodplain Acreage: 0. 00 A statement addressing any differences between the Final Plat and approved Master Plan and/or Preliminary Plat (if applicable): NIA Requested Variances To Subdivision Regulations & Reason For Same: NIA Requested Oversize Participation : NIA Total Linear Footage of Proposed Public: Streets Sidewalks Sanitary Sewer Lines Water Lines Channels Storm Sewers Bike Lanes I Paths Parkland Dedication due prior to filing the Final Plat: ACREAGE: ___ # of acres to be dedicated + $ ____ development fee ___ # of acres in floodplain # of acres in detention --- ___ # of acres in greenways OR FEE IN LIEU OF LAND: ___ #of Single-Family Dwelling Units X $556 = $ ___ _ _______ (date) Approved by Parks & Recreation 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 true , correct, and complete . The undersigned hereby requests approval by the City of College Station of the above-identified final plat and attests that this request does not amend any covenants or restrictions associated with this plat. Date 6/13 /03 2 of4 J SUBMIT APPLICATION AND THIS LIST CHECKED OFF WITH 13 FOLDED COPIES OF PLAT FOR REVIEW C ITY O F C OLLEGE S TATION Planning & Develop ment Services FINAL PLAT MINIMUM REQUIREMENTS (ALL CITY ORDINANCES MUST BE MET) INCLUDING BUT NOT LIMITED TO THE FOLLOWING: (Requirements based on field survey and marked by monuments and markers.) IZ! 1./orawn on 24" x 36" sheet to scale of 100' per inch or larger. IZ! 2/v;cinity 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 IZI IZI arrow. 3~itle Block with the following information : ~ Name and address of subdivider, recorded owner, planner, engineer and surveyor. IZ! Proposed name of subdivision . (Subdivision name & street names will be approved L. through Brazos County 911 .) (Replats need to retain original subdivision name .) /' J8l Date of preparation . / JZI Engineer's scale in feet. / J8l Total area intended to be developed . 4/ t;>rth Arrow. 5 . i,/Subdivision boundary indicated by heavy lines . IZ! N~· If more than 1 sheet, an index sheet showing entire subdivision at a scale of 500 feet per inch or ~ger . 7.~ applicable certifications based on the type of final plat. · Ownership and Dedication Surveyor and/or Engineer City Engineer (and City Planner, if a minor plat) Planning and Zoning Commission (delete if minor plat) Brazos County Clerk Brazos County Commissioners Court Approval (ET J Plats only) IZ! ~ Paid tax certificates . IZI ~~ 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 . IZ! \)ef.' 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 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 21.004 of the Texas Water Code . IZ! ~Location of the 100 Year Floodplain and floodway , if applicable, according to the most recent available data . ( IZ! ~Lot corner markers and survey monuments (by symbol) and clearly tied to basic survey data . IZ! ~Matches the approved preliminary plat and/or master development plan . ~ SV.1!.¥1S V\.,otl . 6/13 /03 3 of 4 [)... r c) \ 14. The location and aescription with accurate dimensions, tlce:trings 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 [8J [8J ~ts . Continuous or end in a cul-e-sac, stubbed out streets must end into a temp turn around unless they are shorter an 100 feet. [8J ~blic and private R.O.W. locati ns and widths . (All existing and proposed R.O .W .'s sufficient to meet Thoroughfare Ian .) [8J ~eet offsets and/or inters cti n angles meet ordinance . ~ ~:~ents [8J V'fa. number or letter to identify each lot or site and each block . [8J JJA.G reenbelt area/park linkages/parkland dedication ( All proposed dedications must be reviewed by the Parks and Recreation Board prior to P & Z Commission consideration .) 15. 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: [8J 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 uti I ities). [8J 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 .) [8J 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 .) [8J 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. [8J Detailed cost estimates for all public infrastructure listed above sealed by Texas P.E. [8J Drainage Report. [8J Erosion Control Plan (must be included in construction plans). [8J 16. All off-site easements necessary for infrastructure construction must be shown on the final plat with a volume and page listed to indicate where the separate instrument easements were filed . Separate instrument easements must be filed prior or concurrently with Final Plat. [8J ~Are there impact fees associated with this development? D Yes [8J No Impact fees for R-1, R-2, & R-3 zoned final plats, must be paid prior to filing . [8J ~ill any construction occur in TxDOT rights-of-way? D Yes [8J No NOTE: 6/13/03 If yes , TxDOT permit must be submitted along with the construction documents . 1. We will be requesting the corrected Final Plat to be submitted in digital form if available prior to filing 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. 4 of4 , r .·"' . .-• • ~ • ~.. • • • • ~ f .. TIIIS DECLARATION OF COVENANI'S, CONDITIONSJg. 'SERVATIONS AND RESTRICTIONS OF DUCK HAVEN ESTA'IES IS BElliG REFIELD IN RDER TO AITACH 1HE SIGNATURE AND CONSENT AND SUBORDINATION BY LIENHO CMI'ITED FROM THE DEClARAT!ON OF COVEtW..TfS, CONDIT!ONS, RESERVATIOOS . . RESTRICTIONS .1IBCORDEJf .TIYV0LUME 5639 , PAGE 153 OF TIIE OFFICIAL RECORD :QF BRAZOS COUNI'Y; TEXAS'. . . \ .~ .' .. DECLARATION OF COVENANTS, CONDITIONS, RESERVATIONS AND RESTRICTIONS OF D.UCK HAVEN ESTATES lJJf& ff[,Afcord in: On: Feb 24,2004 at 02:30P Rs a Recordings Docu11nt NU1ber: f11ount OOM6415 85. t10 Receipt Nu1ber -c'J6856 Bv, Sylvia Polansky STAlE IF m mm IF llmCS I heNby certify that this instrumt Mas filed on the dah and tin stai!>ed hereon by 1e and llilS duly r!Corded in the vo1u1e and page of !he nmd NC11rds of: BRAZOS CllJllY as sta1ped hereon by 1e. Feb 24,2004 ARTICLE 1 Doc ' Bk 00846415 OR DECLARATION OF COVENANTS, CONDITIONS, RESERVATIONS AND RESTRICTIONS OF DUCK HAVEN ESTATES TABLE OF CONTENTS Vol 5883 ~-J>g c .,...~-- DEFINITIONS ........................................................................................................................ Page 1 1.01 "ACC " ....................................................................................................................... Page 1 1.02 ·~ccess Road" .......................................................................................................... Page 1 1.03 "Architectural Guidelines" ......................................................................................... Page 1 1 .04 "Assessment" ........................................................................................................... Page 2 1.05 ·~ssociation" ............................................................................................................ Page 2 1 .06 "Board" ..................................................................................................................... Page 2 1.07 "Common Areas " ...................................................................................................... Page 2 1.08 "Conservation A r eas and/or Easements, Corridors & Parks " ................................... Page 2 1.09 "Culvert Design Guidelines" ..................................................................................... Page 2 1.1 O "Declaration" ............................................................................................................. Page 2 1.11 "Development Period" .............................................................................................. Page 3 1 .12 "DH " .......................................................................................................................... Page 3 1 .13 "Dwelling Unit" .......................................................................................................... Page 3 1 .14 "Easements " ............................................................................................................. Page 3 1.15 "Fencing Guidelines" ................................................................. : .............................. Page 3 1 .16 "Fis cal Year" ............................................................................................................. Page 3 1 .17 "Improvement" .......................................................................................................... Pag e 3 1.18 "Lake " ....................................................................................................................... Pag e 3 1 .19 "L ake Lot" ................................................................................................................. Page 3 1 .20 "L ot" .......................................................................................................................... Pag e 3 1 .21 "Member" .................................................................................................................. Page 3 1 .22 "Owner" .................................................................................................................... Page 4 1 .23 "Plat" ......................................................................................................................... Page 4 1 .24 "Property" ................................................................................................................. Page 4 1 .25 "Special Assessment" .............................................................................................. Page 4 1.26 "Stream Map and Identification Table " ..................................................................... Page 4 ·1.27 "Structure " ................................................................................................................ Page 4 1.28 "Subdivision" ............................................................................................................. Page 4 1.29 "Supplemental Declaration " ...................................................................................... Page 4 1 .30 ''Telecommunication Guidelines " .............................................................................. Page 4 1 .31 "Trails" ...................................................................................................................... Page 5 1 .32 "Waterway" ............................................................................................................... Page 5 1 .33 "Wiring Guidelines " ................................................................................................... Page 5 ARTICLE 2 ARCHITECTURAL CONTROL COMMITTEE ...................................................................... Page 5 2.01 Membership of Architectural Control Committee ..................................................... Page 5 2 .02 Action of Architectural Control Committee ............................................................... Page 5 2.03 Advisory Membe rs .................................................................................................... Pag e 5 Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Es tates -ii- ·------------ / s~~ 2.04 Ter 1 m ................................................................................ ~~~4.6 :ttr 5 ... 8~· .. ··~a~·~l1age 5 %'1 2.05 DH s Rights of Appointment ..................................................................................... PageRF 2.06 ACC Jurisdiction ....................................................................................................... Page 5 2 .07 Adoption of Architectural Guidelines and Rules by the ACC .................................... Page 6 2.08 Review of Proposed Construction ............................................................................ Page 7 2.09 Preliminary and Final Plan Submission and Approval Process ................................ Page 8 2.1 O Actions of the ACC ................................................................................................... Page 9 2.11 No Waiver of Future Approvals .............................................................................. Page 1 O 2.12 Work in Progress ................................................................................................... Page 1 o 2.13 Nonliability of ACC Members ................................................................................. Page 10 2.14 Certificate of Compliance ....................................................................................... Page 10 2 .15 Variances ............................................................................................................... Page 10 2.16 Governmental Agency Approval ............................................................................. Page 10 2.17 Relationship with Association ................................................................................. Page 10 2.18 Violation of Article 2 ........................................................ ; ....................................... Page 11 2.19 Remedy ............................................................................. , ..................................... Page 11 ARTICLE 3 DUCK HAVEN HOMEOWNERS ASSOCIATION(S) .......................................................... Page 11 3.01 Organization ........................................................................................................... Page 11 3.02 Membership ............................................................................................................ Page 11 3.03 Voting Rights .......................................................................................................... Page 12 3.04 Powers and Authority of the Association ................................................................. Page 12 3.05 Board of Directors .................................................................................................. Page 13 3.06 Maintenance ........................................................................................................... Page 14 3 .07 Common Areas ...................................................................................................... Page 14 3 .08 Association Powers ................................................................................................ Page 14 3.09 Agreements with Governmental Entities ................................................................ Page 15 3 .10 Telecommunication Services ................................................................................. Page 15 3.11 Indemnification ....................................................................................................... Page 16 ARTICLE 4 RESTRICTIONS .................................................................................................................. Page 16 4.01 Building, Construction, and Use Restrictions ......................................................... Page 16 4.02 General Restrictions ............................................................................................... Page 19 4.03 Restrictions for Waterways and Lakes ................................................................... Page 21 4 .04 Restrictions Relating to Conservation Development .............................................. Page 22 ARTICLE 5 WATER SERVICE; NO PRIVATE WELLS ......................................................................... Page 23 ARTICLE 6 RIGHTS OF ENJOYMENT IN THE COMMON AREAS ..................................................... Page 24 6.01 Easement ............................................................................................................... Page 24 6.02 Extent of Members' Easements ............................................................................. Page 24 6.03 Restricted Actions by Members .............................................................................. Page 24 6.04 Delegation of Use; Damage to the Common Areas ............................................... Page 25 6.05 Rules of the Board ............................................................................................. : .... Page 25 6.06 Use of Common Areas ........................................................................................... Page 25 6.07 User Fees and Charges ......................................................................................... Page 25 6.08 Encroachments ...................................................................................................... Page 25 Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates -iii- Doc Bk Vol p 00846415 OR 5883 22~ ARTICLE 7 FUNDS AND ASSESSMENTS ........................................................................................... Page 26 7 .01 Assessments .......................................................................................................... Page 26 7 .02 Maintenance Fund .................................................................................................. Page 26 7 .03 Regular Annual Assessments ................................................................................ Page 26 7 .04 Special Assessments ............................................................................................. Page 26 7 .05 Owner's Personal Obligation for Payment of Assessments; Late Fees ................. Page 26 7 .06 Assessment Lien and Foreclosure ......................................................................... Page 27 ARTICLE 8 EASEMENTS ...................................................................................................................... Page 27 8 .01 Reserved Easements ............................................................................................. Page 27 8 .02 Installation and Ma intenance .................................................................................. Page 28 8.03 Surface Areas ......................................................................................................... Page 28 8.04 Drainage Easements .............................................................................................. Page 28 8 .05 Blanket Easemen t .................................................................................................. Page 28 8.06 R iparian Managemen t Easement ........................................................................... Page 28 ARTICLE 9 MISCELLANEOUS PROVISIONS ...................................................................................... Page 28 9 .01 Applicability ............................................................................................................. Page 28 9 .02 T erm ....................................................................................................................... Page 29 9 .03 Mortgagee .............................................................................................................. Page 29 9 .04 Assignment of DH Rights and Du ti es ..................................................................... Page 29 9 .05 Run With Land ....................................................................................................... Page 29 9 .06 D ev iat ions ............................................................................................................... Page 29 9 .07 S everability ............................................................................................................. Page 29 9 .08 Enlargement or Reduction of the Prope rty ............................................................. Page 29 9 .09 Am endmen t ............................................................................................................ Page 30 9 .1 O Fa il ure to Enforce Covenants ................................................................................. Pag e 30 9.1 1 Covenants Do No t Create Reve rs ion ..................................................................... Page 30 9.1 2 Re lief for Violatio n or Breach .................................................................................. Page 30 9 .13 Enforcement of Co venants ..................................................................................... Page 31 9 .14 A lteration of this Declaration .................................................................................. Page 31 9.15 Assignment by the Association .............................................................................. Page 31 9 .16 De fi nition of "Titles " ................................................................................................ Page 31 9 .17 No t ices ................................... ., ............................................................................... Page 31 9 .18 Mutuality, Reciproc ity , Runs with Land ................................................................... Page 32 9 .19 No Warranty of Enforceability ................................................................................. Page 32 9 .20 T ime is of the Essence ........................................................................................... Page 32 9 .21 Maximum Interest Payable ..................................................................................... Page 32 9.22 Replatting ............................................................................................................... Page 32 9 .23 Conflict ................................................................................................................... Page 32 Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Es tates -iv- Doc Bk Vol Pa 00846415 OR 5883 22. <iJ STATE OF TEXAS § COUNTY OF BRAZOS § DECLARATION OF COVENANTS , CONDITIONS, RESERVATIONS AND RESTRICTIONS OF DUCK HAVEN ESTATES This DECLARATION OF COVENANTS , CONDITIONS AND RESTRICTIONS of the Duck Haven Estates, is made effective as of the 30 1h day of September, 2003, by Duck Haven , Ltd , a Texas limited partnership (hereinafter sometimes referred to as "DH"): WHEREAS, DH is the owner of all that certain tract of land in Brazos County, Texas, which tract is described on Exhibit "A", attached hereto and incorporated herein by reference; and WHEREAS, DH desires to create and provide for the development and improvement and maintenance of the Subdivision (as defined below) for the mu tual benefit and pleasure of the present and future property owners in such Subdivision, to protect and conserve the native beauty and natural plant and wildlife habitats of the Property (as defined below) and to protect the property values within such Subdivis ion by imposing upon and agains t all the designated lots therein the covenants, reservations, restrictions, and other provisions hereinafter set forth; NOW THEREFORE , the following restrictions, includ ing without limitation restrictions , covenants , declarati on, easements , limitations, charges, agreements, and conditions (hereafter collectively called the "Restricti ons"}, are hereby established and adopted to apply un iformly to use, occupancy and conveyance of all the Lots in the Subdivision. Every contract, deed or conveyance which may be hereafter executed w ith regard to any of the Property shall be conclusively deemed to have been executed, delivered and accep ted subject to the follow ing covenants, conditions and restrictions , even if the covenants, cond itions and restr ictions are not set out in full and are not incorporated by reference in such contract of sa le , deed , lease or other transfer of and interest in such parcel. ARTICLE 1 DEFINITIONS The following words when used in this instrument shall have the following meanings : ·1.01 "ACC" shall mean the Architectural Control Committee , established under Art icle 2 of this Declaration, and its successors and assigns. 1.02 ·~ccess Road" shall mean any road depicted on the Plat or other publicly dedicated street , drive , boulevard, road , alley, lane, avenue or thoroughfare . 1.03 "Architectural Guidelines " shall mean those particular standards , restrictions , guidelines , recommendations and specifications promulgated by the ACC applicable to most of the aspects of construction, placement, location, alteration, maintenance and design of any improvements to or within the Property, and all amendments, bulletins, modifications, supplements and interpretations thereof, and including , without limitation, Fencing Gu idelines and Wiring Guidelines . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 1 Vol 5883 1 .04 ''Assessment" shall mean and refer to the assessments levied by the Board pursuant to Article 7. 1.05 "Association" shall mean the non-profit association formed by DH pursuant to Article 3 of this Declaration which has the power , duty and responsibility of maintaining and administering certa in portions of the Property and all of the Common Areas, administering and enforcing this Declaration and otherwise maintaining and enhancing the qual ity of life and conserving the native beauty and plant and wildlife habitats within the Subdivision . 1.06 "Board" shall mean and refer to the Board of Directors of the Associat ion . 1.07 "Common Areas" shall mean any and all areas of land within the Property which are known , described or designated as common areas, parks, conservation areas , recreational easements, flood way easement areas , lakes , ponds , dams, perimeter fences and columns , off-site monuments and directional signs, landscape easement, green belts, open spaces, paths and trails , and the like including without limitation those shown on any recorded subdivision plat of portions of the Property as well as those no t shown on a recorded subdivision plat but which are intended for or devoted to the common use and enjoyment of the Members of the Association, together with any and all improvements that are now or that may hereafter be constructed thereon . The concept of Common Areas will also include : (a) any and all public right-of-way lands within the Property for which Brazos County has required that DH and/or the Association expend private , non-reimbursable time and monies to care for and ma intain , such as but not limited to: stree t medians, street scape, trails , park areas and quas i-governmental service facilities; and (b) any and all facil ities provided by DH and/or the Associa ti on to or for the benefit of the local police , fire and s im ilar governmental departments fo r w hi ch no reimbursement via publ ic fu nds is reques ted or an t icipa ted . DH may convey reco rd title or ease m en ts to some or all of the Commo n Area~ to the Association if, as and when deemed appropriate by DH o r as may be requ ired by governmen tal officials , and DH shall at all times have and retain the r ight to effect minor redesigns or minor reconfiguration of the Common Areas (particularly along the edges ) and to execute any open space declarations applicab le to the Common Areas which may be permitted in order to reduce property taxes, and to take whatever steps may be appropriate to lawfully avoid or minimize the imposition of federal · and state ad valorem and/o r income taxes. 1.08 "Conservation Areas and/or Easements, Corridors & Parks " hereinafter "CAC&P" shall mean and refer to those portions of the Common Areas, which by plat or other recorded instrument are restricted for use solely for conservation and passive recreation purposes . DH or the Association (after the Development Period) reserves the sole and exclus ive right to amend existing CAC&P's, add new CAC&P's and amend any permiss ible activities within or rights to access the CAC&P's. DH and the Association make no guarantees or warranties of any nature for the longevity and mortality of habitats of any species on the Property . 1.09 "Culvert Design Guidelines" shall mean those guidelines referred to in Section 4.01 .03 of th is Declaration . 1.10 "Declaration" shal l mean this "Declaration of Covenants, Conditions and Restrictions", together with any and all amendments or supplements hereto recorded in the Official Records of Brazos County , Texas . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 2 . / Doc Bk Vol p 00846415 OR 5883 2 3 t:f 1.11 "Development Periodn shall mean a period commencing on the date of the recording of this Declaration in the Official Records of Brazos County, Texas and continuing thereafter until and ending on the earlier to occur of: (a) substantial completion of all development (including without limitation the completion and sale of all Lots to third parties) within the Property; (b) the twentieth-fifth (25th) anniversary of the date of recordation of this Declaration in the Official Records of Brazos County, Texas; or (c) the date determined by DH to be the end of the Development Period . 1 .12 "DH" shall mean and refer to Duck Haven, Ltd. and any successor(s) and assign(s) of Duck Haven , Ltd ., with respect to the voluntary disposition of all (or substantially all) of the assets and/or ownership interests of Duck Haven, Ltd., and/or the voluntary disposition of all (or substantially all) of the right, title and interest of Duck Haven, Ltd. in and to the Property. However, no person or entity merely purchasing one or more Lots from Duck Haven, Ltd . in the ordinary course of business shall be considered a successor or assign of DH for purposes of this Declaration . 1.1 3 "Dwelling Unit" shall mean any building or portion of a building situated upon the Property which is designed and intended for use and occupancy as a residence by a single person , a couple , a famil y or a permitted family size group of persons . 1.14 "Easements " shall mean those easements more particularly described in Article 8 of th is Declarat ion . 1.15 "Fencing Guidelines " shall mean those fencing guidelines described in Section 4 .01.17 of thi s Declarati on . 1.1 6 "Fiscal Year" shall mean the fiscal year adop t ed by the Association , which w ill initially be January 1st through December 31 st until changed by the Board . 1 .17 "Improvement" shall mean any physical change to raw land or to an existing structure which alters the physical appearance , characteristics or properties of t he land or structure, including bu t not lim ite d to adding or removing square footage a rea space to or from a structure , painting or repainting a structure , or in any way altering the size, shape or physical appearance of any land or structure. 1.18 "Lake" shall mean any lake(s) and pond(s) ex isting or established on the Property by DH . 1.19 "Lake Lot" shall mean any Lot having at least one property line that abuts a Lake . 1.20 "Lot" shall mean those L ots shown on a plat filed of record with the Clerk of Brazos County, Texas of all or a portion of the Property or covering property made subject to this Declaration after the date hereof in accordance with Section 9.08 . The term "Lot" does not include the Common Areas or any portion thereof. In the case of a parcel of land within the Property, which has not been platted into Lots, the parce l shall be deemed to contain the number of Lots designated by DH on the then current development plan for such parcel of land unless or until a different number of Lots is platted. 1.21 "Member" shall mean each Owner who is in good standing with the Association . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 3 . / Doc . Bk Vol p 00846415 OR 5883 2.:3 ~ 1.22 "Owner" shall mean the record owner, whether one ( 1) or more persons or entities, of the fee simple title to any Lot, or any part or interest therein, but shall not mean or refer to any mortgagee, under any applicable theory of mortgage, unless and until such mortgagee has acquired legal title pursuant to foreclosure or any proceeding in lieu of foreclosure . The term "Owner" shall further include any person or entity claiming title to any Lot or portion thereof by adverse possession, and any person or entity claiming interest in a Lot or part thereof under a contract of sale. 1.23 "Plat" shall mean a plat of the Property or portion thereof, recorded or to be recorded in the Official Records Brazos County, Texas, or any other plat recorded in the Official Records of Brazos County, Texas of all or any portion of the Property. 1.24 "Property" shall mean ttie real property described on Exhibit "A" and any other real property made subject to this Declaration after the date hereof in accordance with Section 9.08 . 1 .25 "Special Assessment" shall mean and refer to any assessment levied by the Board pursuant to Section 7 .04 . 1.26 "Stream Map and Identification Table" shall mean and refer to the Stream Map and Identification Table, if any, described in Section 4.04.05 that may be promulgated and modified by the ACC from time to time to identify the Waterways existing on the Property. 1.27 "Structure" shall mean and refer to: (a) any thing or device, other than trees , shrubbery and landscaping (the placement of ~hich upon any Lot shall not adversely affect the appearance of such Lot) including but not limited to any building, garage, outbuilding, porch, shed, greenhouse 6r bathhouse, cabana, coop or cage, covered or uncovered patio , swimming poo l, play apparatus, clothesl ine , fence, curbing, paving , wall or hedge more than two feet in height, signboard or other temporary or permanent livir:g quarters or any temporary or permanent Improvement to any Lot; (b) any excavation , fill, ditch , diversion dam or other th ing or device which affects or alters the flow of any waters in any Waterway, wash or drainage channel from , upon or across any Lot; (c) any enclosure or receptacle for the concealment, collection and/or d ispos ition of refuse; and (d) any change in the grade of any Lot of more than six (6) inch es from that existing at the time of initial construction approval by the ACC. 1.28 "Subdivision"shall mean the Duck Haven Subdivision (sometimes also referred to the "Duck Haven Estates"), to be developed on the Property pursuant to the plat(s) recorded or to be recorded in the Official Records of Brazos County, Texas, or such other subdivision(s) made subject to this Declaration after the date hereo f in accordance with Section 9.08, as well as any and all revisions, modifications, corrections or clarifications thereto . 1.29 "Supplemental Declaration" shall mean a separate declaration of covenants, conditions and restrictions wh ich is imposed on a portion of the property within the jurisd icti on of the Association and which is administered by and may be enforced by the Association. 1.30 ''Telecommunication Guidelines" shall mean those telecommunication guidelines described in Section 3.10 of this Declaration . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 4 ~~~~ 1.31 "Trails" shall mean and refer to the t . ~~~4~415 a~ 58~~1 23~n s on the Property maintained by the Association and ~ more particularly described in Section 4.04.03 . 1.32 "Waterway" shall mean refer to any lake, river, stream, canal or other body of water, including, without limitation, water channels of any classification whether perennial, intermittent, ephemeral or man made and water shed/drainage courses within or adjacent to the Property, whether or not such body of water continuously contains water, and all Waterways designated on the Stream Map and Identification Table, if any. The ACC shall, in its sole and absolute discretion, make all determinations as to whether a body of water or water course constitutes a Waterway. 1.33 "Wiring Guidelines" shall mean those wiring guidelines described in Section 4 .01 .15 of this Declaration. ARTICLE 2 ARCHITECTURAL CONTROL COMMITTEE 2.01 Membership of Architectural Control Committee. The Architectural Control Committee shall consist of at least one (1) and not more than four (4) voting members ("Voting Members") and such additional nonvoting members serving in an advisory capacity ("Advisory Members") as the Voting Members deem appropriate. The following persons are hereby designated as the initial Voting Members of the ACC: Paul J. Clarke, Pamela Johnson and Cindy Miller. The ACC shall mainta in records of the member appointments and its actions as a committee. In the event a member resigns or no longer serves for any reason, the remaining Voting Members shall select a replacement. 2 .02 Action of Architectural Control Committee . Items presented to the ACC shall be decided by a majority vote of the Voting Members. 2.03 Advisory Members. The Voting Members may from time to time designate Advisory Members . 2.04 Term . Each Voting Member of the ACC shall hold office until such time as he or she has resigned or has been removed or his or her successor has been appointed as provided herein . 2.05 DH's Rights of Appointment. During the Development Period, DH shall have the right to appoint and/or remove all Voting Members of the ACC, which persons need not be drawn from Association Members. Notwithstanding the preceding sentence , DH may delegate its right of appointment, or any portion thereof, to the Board of Directors of the Association (the "Board") by written instrument before such date . After the Development Period, the Board shall have the right to appoint all Voting Members. At such time as the Board gains the right to appoint and remove Voting Members of the ACC, or any portion or this right, a majority of the Voting Members so appointed shall be drawn from Members of the Association. Advisory Members shall, when reasonably possible, be drawn from Members of the Association . 2 .06 ACC Jurisdiction. No Structure, fence or Improvement of any kind or nature shall be erected, placed or altered on any Lot and no damming of Waterways or construction within seventy-five feet (75') (or such greater distance as determined by the ACC from time to time for particular Waterways) of a stream , channel or Waterway shall occur until all plans and specifications for such construction have been submitted to and approved in writing by the ACC pursuant to Section 2.09 by a majority of its Voting Members, as to: 2.06.01 quality of workmanship and materials, adequacy of site dimensions, adequacy of structural design and proper facing of main elevation with respect to nearby streets in accordance with this Declaration and/or bulletins; 2.06.02 minimum finished floor elevation and proposed footprint of the Structure, if applicable ; Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Pages .. ~ 233 2.06 .03 conformity and harmony of the external design, colo r, type and appearance of exterior surfaces and landscaping, if applicable; 2.06.04 drainage impacts and solutions; 2.06 .05 the observance of and compliance with applicable setback lines and Easements and the enhancement of aesthetic views and visual corridors to and from the Common Areas and Trails; and 2.06 .06 the other standards set forth within this Declaration (and any amendments hereto), guidelines and bulletins issued by the ACC, or matters in which the ACC has been vested with the authority to render a final interpretation and decision. The ACC is authorized and empowered to consider and review any and all aspects of construction , location, habitat and ground clearing and landscap ing, which may, in the reasonable opinion of the ACC, adversely affect the living enjoyment of one or more Owner(s) or the general value of the Property. The ACC may consider technological advances and changes in design and materials and such comparable or alternative techniques, methods or materials that may or may not be permitted, in accordance with sole discretion of the ACC . The following is a general outline of the steps likely to be involved in the review of plans and specifications : (a) Submit preliminary construction and ground clearing plans and specifications to the ACC in accordance with Section 2.09 .01 ; (b) Submit final plans a nd specificatio ns to the ACC in accordance with Section 2.09 .02 ; and (c) Submit copy of bui ld ing permit to the ACC . The ACC may require as a condition prece dent to any approva l of the final plans and specifications , that the applican t obtain and produce an appropriate building permit from the City of College Sta tion or Brazos County, Texas , as applicable, and an y other perm its required by a governmental unit having jurisdiction over the proposed project. The ACC is also authorized to coordinate with the City of College Station or Brazos County, as appl icable , in connection with the app licant's observance and compliance of the construction standards set forth in this Declaration . However, the mere fact that the City of College Station or Brazos County issues a building permit with respect to a proposed structure does not automatically mean that the ACC is obliged to unconditionally approve the plans and specifications . Similarly, the ACC's approval of any plans and specifications does not mean that all applicable building requirements of the City of College Station or Brazos County have been satisfied . Each and every Owner and applicant shall use their respective best efforts to commence construction of all improvements approved by the ACC and the City of College Station or Brazos County, Texas (and any and all other applicable governmental agencies) within sixty (60) days after obtaining all necessary governmental approvals therefor and thereafter diligently pursue the project through to complet ion. The ACC is not responsible for informing applicant of the need to acquire any approval, certificate and/or permit as required by law or ordinance and applicant is solely responsible for investigating and receiving such approvals , certifica tes and/or permits . 2.07 Adoption of Architectural Guidelines and Rules by the ACC. 2.07.01 The ACC may from time to time publish and promulgate architectural standards bulletin s or guidelines and/or lot information sheets that shall carry forward the spirit and intention of this Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 6 -~L--~56i~~~~~l::--r6pr­ Declaration . Such bulletins and lot information s 1 s shall supplement th~AiPcifta\tan ~ ar~~1orat~g herein by reference . EACH OWNER SHALL SEE AND OBTAIN AND BECOMETHOROUGHLYFAMILIAR WITH ANY AND ALL ARCHITECTURAL STANDARDS BULLETINS OR GUIDELINES AND LOT INFORMATION SHEETS PRIOR TO ACQUISITION OF, AND CONSTRUCTION ON, ANY LOT WITHIN THE SUBDIVISION . The ACC shall have the right, power and authority to establish and prescribe architectural standards bulletins and guidelines pertaining to such items and topics as (but not necessarily limited to}: (a) A site plan showing the "footprint" of the Structures and Improvements, location of all existing trees and proposed improvements, including but not limited to , Structures, patios, driveways, parking areas, outbuildings, fences and walls . (b) Exterior elevations of all proposed Structures and Improvements . (c) A description and samples of exterior materials , colors, textures and shapes of all Structures and Improvements. (d) Site clearing of natural habitat and landscape plans, which shall include walkways , fences, walls, details, elevation changes , irrigation and watering systems, vegetation and ground cover , and the protection and preservation of trees and other existing and introduced vegetation. (e) Utility connections, including routing of electrical, gas, water, san itary sewer, telephone and cables . (f) Exterior illumination and location. (g ) Dimensional floor plan of all enclosed spaces and any garages or parki ng facilities . (h} Mailbox location and design . (I) Drainage impacts and solut ions . U) Such other matters as may be required by the then applicable zoning and building codes of the City of College Station and/or Brazos County, Texas, as applicable . (k} The items described in Section 2.06 above and any other date or information requested or deemed reasonably necessary by the ACC. **PRIOR TO ACQUIRING ANY INTEREST IN A LOT , EACH PROSPECTIVE PURCHASER, TRANSFEREE, MORTGAGEE AND OWNER OF ANY LOT IN THE SUBDIVISION IS STRONGLY ENCOURAGED TO CONTACT DH, THE ASSOCIATION OR THE ACC TO OBTAIN AND REVIEW THE MOST RECENT ARCHITECTURAL GUIDELINES WHICH WILL CONTROL THE DEVELOPMENT, CONSTRUCTION AND USE OF THE LOT.** 2 .07.02 The ACC may adopt such procedural and substantive rules, not in conflict with this Declaration, as it deems necessary or proper for the performance of its duties, including but not limited to rules governing the submission and approval process for the construction of Structures and Improvements on a Lot , building codes, fire codes, housing codes, and other similar codes. 2.08 Review of Proposed Construction . Whenever in this Declaration the approval of the ACC is required , the ACC shall have the right to consider all of the construction plans and specifications , renderings, Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 7 111lSt IU1 Vol ~., elevation sketches, surveys and any other information requested by or s/5ffl>~~ft ~A~ foM~ruct~b Improvement or proposal in question (collectively "Plans and Specifications"} and all other facts that, in its sole discretion , are relevant. Except as otherwise specifically provided herein, prior to the commencement of construction of any Structure or Improvement on the Property or any portion thereof, the Plans and Specifications therefor shall be submitted to the ACC in accordance with Section 2.09 and any rules adopted by the ACC. Construction may not commence unless and until the ACC has approved in writing such Plans and Specifications in accordance with Section 2 .09. The ACC sh?ll have the express authority to perform fact- finding functions hereunder and shall have the power to construe and interpret any covenant herein that may be vague, indefinite, uncertain or capable of more than one construction . The ACC may, in its review of Plans and Specifications and such other information as it deems proper, consider whether any proposed Structure or Improvement upon a Lot would unreasonably obstruct the view from other portions of the Property. The ACC may, but shall not be required to, disapprove any Structure or Improvement upon any Lot that would unreasonably obstruct the view from any other portion of the Property. No Structure or Improvement shall be allowed on any Lot which is of such size or architectural design or involves the use of such landscaping, color schemes, exterior finishes and materials and similar features as to be incompatible with residential development within the Property and the surrounding area. The ACC shall have the authority to disapprove any proposed Structure or Improvement based upon the restrictions set forth in the preceding sentence.The ACC shall not be responsible for reviewing any proposed Structure or Improvement, nor shall its approval of any Plans and Specifications be deemed an endorsement, from the standpoint of structural safety, engineering soundness, or conformance with building or other codes not of its authorship. 2 .09 Preliminary and Final Plan Submission and Approval Process . All submissions of Plans and Specifications to the ACC should meet the requirements of this Section 2.0 9 and be made in accordance with the rules promulgated by the ACC for the submission and approval process . All submissions shall boldly state by cover letter and on the plans whether they are a submission of preliminary or final plans . A Lot Owner is not required to make a preliminary plan submission , but is encouraged to do so to avoid increased architectural and engineering fees . All submissions must be delivered to the ACC by certified mail, return receipt requested , hand delivery or such other manner authorized by rule of the ACC. 2.09 .01 Preliminary Plan Submission and Approval. The ACC is authoriz ed to consider and comment on p reliminary plans on an informal basis to assist Owners , developers , homebuilders and prospective purc h asers of the Lots in complying wi th this Declaration and any Architectural Guidelines and to assist in the completion of any feasibility studies undertaken by such persons or ent ities. The ACC shall have the right, however, to prescribe reasonable lim itations concerning the time, effort and expense likely to be involved in handling such matters on an informal basis . The ACC may require an Owner to attend a regularly schedu led or special meeting of the ACC to review and discuss the preliminary plan submission . (a) Preliminary plans shall consist of the following and any other information required by the ACC from time to time, which may be submitted separately or simultaneously: (i) Plan/sketch/rendering of proposed development, incl.uding without limitation, the approximate location of all Dwellings, Fences, antennas, satellite dishes and other telecommunication structures and other Structures, which depicts the number of linear feet between such items from the boundary lines of the Lot; and (ii) Elevation sketch of all Dwellings and other Structures and all lake front elevations, if applicable . The sketch should include specific information regarding the constructions materials to be used on the exterior of the Structures. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 8 ,_(1 Bk Vol -~ ~rrrq~33 --~ i~s4641s B~ saX~1 232;~ (b) The ACC will review the pre minary plan submission(s) and provide a written notice to the Owner to proceed with the final plan approval process or a written notice of the ACC recommendations that must be met before preliminary plan approval will be granted. (c) If the ACC fails to approve or disapprove a preliminary plan submission within fourteen (14) days after the actual date on which the submission is received , approval of the matters submitted shall be presumed . Review of the preliminary plans is provided as a courtesy to the Owners and is not binding on the ACC or the Owner. 2 .09.02 Final Plan Submission and Approval. (a} Final detailed construction plans and specifications , elevations, a survey and any other information required by the ACC from time to time ("Final Plan Submission") shall be submitted in duplicate to the ACC for approval or disapproval. The ACC may request the submission of samples of proposed construction materials and othe r information necessary to evaluate the Final Plan Submission. The ACC may requ ire an Owner to attend a regularly scheduled or special meeting of the ACC to review and discuss the Final Plan Submission . The ACC may charge the Owner a fee, as set from time to time by the Association, for the review of the Final Plan Submission , and such fee shall be paid at the time the Final Plan Subm ission is submitted to the ACC . (b) At such time as the Final Plan Submission meets the approval of the ACC, one complete set of the Final Plan Subm iss ion will be retained by the ACC and the othe r complete set will be ma rked "Appro ved" and re turned to the Lo t Owner or h is designated representative . Any mod ification or change to any part of the approved Final Plan Submission must again be submitted to the ACC for its inspection and approval. (c ) If found not to be in compliance with this Declaration, one set of the Final Pla n Subm ission shall be returned marked "Disapproved ," accompanied by a reasonab le statement and explanation of items found not to comply with this Declaration . ( d} If the ACC fails to approve or disapprove the Fina l Plan Subm ission wi th in thirty (30 ) days after the actual date on which the complete submission and all information requested by the ACC is received, then the ACC approval shall be presumed . (e) The decision of the ACC shall be final and binding so long as it is made in good faith. A Lot Owner may request the ACC to reconsider a decision; however , a Lot Owner may only request reconsideration of ACC decisions more than two (2) times in any twelve {12) month period . 2 .09 .03 Delivery Address. Submiss ions to the ACC shall be made in care ofTXCAMCO, 3608 E. 29th Street, Suite 1 OOA, Sryan, Texas 77802, or in care of such other person at such other address as may be des ignated by the ACC from time to time. 2 .10 Act ions of the ACC . The ACC may, by resolu ti on unanimously adopted in writing , designate one or two of its Voting Members or an agent acting on its beha lf to take any action or perform any duties fo r Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 9 ~~s4641s Bff saM~1 23jg and on behalf of the ACC. In the absence of such designation, the vote of a majority of all of the Voting Members of the ACC taken without a meeting, shall constitute an act of the ACC. 2.11 No Waiver of Future Approvals . The approval or consent of the ACC of any Plans and Specifications for any work done or proposed, or in connection with any other matter requiring the approval or consent of the ACC, shall not be deemed to constitute a waiver of any right to withhold approval or consent as to any other plans and specifications , or other matter whatever, subsequently or additionally submitted for approval or consent by the same or a different person . 2.12 Work in Progress . The ACC may, at its option, inspect all work in progress to insure compliance with approved Plans and Specifications . 2.13 Nonliability of ACC Members. Neither the ACC nor any member thereof shall be liable to the Association or to any Owner or to any other person for any loss, damage or injury arising out of their being in any way connected with the performance of the AC C's duties under this Declaration unless due to the willful misconduct or bad fai th of the ACC or its members , as the case may be . Neither the ACC nor any member thereof shall be liable to any Owner due to the construction of any Improvements within the Property, or the creation thereby of an obstruction of the view from such Owner's Lot or Lots . 2.14 Certificate of Compliance . Upon completion of any Improvement approved by the ACC and upon written request by the Owner of the Lot, the ACC shall issue a Certificate of Compliance in a form suitable for recordation. The Certificate shall identify the Lot, the Plans and Specifications pursuant to which the improvements were made, the use or uses to be conducted with respect to the improvements , and shall f urther specify that the improvements comply with the approved Plans and Specifications and that said Plans and Specifications are on file with the ACC. The certificate shall not be construed to certify the acceptability or sufficiency of, or endorsement by , the ACC of t he actual constructi on of the improvements or of the st ructural integ rit y, workmanship o r materials thereof. The Owner is hereby notified that the certificate in no way warrants, except as set forth above , the sufficiency or acceptability of or endorsement by , the ACC of th e c onstruc tion , structu r al integrity, work manship or materials of the improvemen ts. Preparati on and recorda ti on of such a certificate s hall be at the expense of the Owne r of the improved Lot. 2 .15 V a riances . Notwithstanding any other provision of this Declaration, in order to prevent undu e hardship upon th e Owner or Owne rs of any individual Lot or Lots upon the Property , variance from any restrictions set ou t in this Decla ration may be granted by a unanimous decision of the ACC, so long as all other elements , materials and locations of the proposed improvements are otherwise in compliance w ith the terms of this Declaration and Arch itectural Guidelines promulgated by the ACC. 2.16 Governmental Agency Approval. Nothing in this Declara ti on shall be cons tr ued to relieve any Owner from securing such approvals, certificates and/or permits as may be required by law or ordinance in connection with the construction of any Improvement on any Lot. 2.17 Relationship with Association . The ACC has been created pursuant to this Declaration to perform certain functions specified herein relating to the review and approval of Plans and Specifications for Improvements built on the Property. The ACC does not exercise the autho r ity of the Board , and shall not do so unless and until : (a) the Board shall have duly appointed a majority of Board members to the ACC , and (b) the Board shall by unanimous resolution, duly recorded in the records of the Association , make the ACC a comm ittee of th e Board in acco rdance with the Texas Non-Profit Corporation Act. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 10 Pg . ~ ~~s4641s H~ saM~1 2~p'I ~al ·-.. 2.18 Violation of Article 2. If any Str cture or Improvement shall be erected, placed or maintained on any Lot other than in accordance with R ans and Specifications approved by the ACC pursuant to Section 2.09, such Improvement shall cons tute a violation of this Declaration. Upon written notice (the "Notice") from the ACC or its designee, a 'f uch Improvement shall promptly be removed or corrected so as to extinguish the violation. The ACC may pprove a violation existing under the provisions of this Article 2 by issuing a written approval of the Improvement in question . 2 .19 Remedy. If an Owner of a Lot upon which a violation exists does not: (a) commence such curative action w ith in fifteen (15) days from the date of the Notice to the applicable Owner and thereafter continue to diligently pursue such curative action until completed; and (b) notify the ACC of the commencement of the curative action being taken within fifteen (15) days of such Notice to the Owner specifying the violation of this Declaration ; then (i) the Association or the ACC may enter upon such Lot and take such steps as were specified in the Notice to extinguish the violation of this Declaration, or (ii) the Association, the ACC or any other Owner may pursue any remedies available hereunder or at law or in equity. (c) The cost of any curative action taken by the Association or the ACC shall be : (i) a binding, persona l obligation of the Owner of the Lot upon wh ich the violation exists ; (i i) payable on demand ; and (iii) secured by the lien granted in Article 7 below, on the terms and condit ions set forth there in. The generality of this Article 2 shall not be in any manner altered , affected or dim in ished by the specific res trictions as to the type and location of certain Improvements, otherwise herein provided for. ARTICLE 3 DUCK HAVEN HOMEOWNERS ASSOCIATION(S) 3.01 Organization. DH has caused or will cause the formation and incorporation of one or more Associations, each as a nonprofit corporation created for the purposes, charged with the duties, and vested with the powers prescribed by law or set forth in its Articles and Bylaws and in this Declaration. Neither the Articles nor Bylaws shall for any reason be amended or otherwise changed or interpreted so as to be inconsistent with this Declaration . It is contemplated that there will be one or more additional phases to the Subdivision . When that occurs, DH may adopt this Declaration of Covenants , Conditions, Reservations and Restrictions by reference but may make modifications or additions to it. lri such event, the lot owners in said new phase may be made members of the same Association created for the Subdivision and therefore subject to all provisions and benefits set forth herein; provided, however, any modifications or additions by the new phase will take precedence as to that phase. 3.02 Membership . Each and every Owner of each and every Lot wh ich is subjected to this Declaration shall automatically be, and must at all times rema in, a Member of the Association in good standing . During the Development Period , the Association shall have two (2) classes of Members : Class A Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 11 and Class B. The Class A Members shall be all Owners Class B Member shall be DH. Any Owner or Member ~~S464ts Bff sa~~1 2~.s. other than DH during the Development Period). The 7 all not be in "good standing" if such person or entity is: (a) in violation of any portion of th is Declaration, or any rule or regulation promulgated by the Board; (b) delinquent in the full, complete and timely payment of any annual assessment, special assessment, or any other fee, charge or fine which is levied, payable or collectible pursuant to the provisions of this Declaration , the Bylaws of the Association or any rule or regulation promulgated by the Board. If DH develops further acreage under a common scheme.or plan of development with the Subdivision , DH may require such property owners to be Members of the Association and they shall have equal voting rights therein on the same basis as owners of a Lot within the Property. 3.03 Voting Rights . 3.03.01 During the Development Period, the two (2) classes of Members will have the following voting rights: Class A: Class B: The Owner (s) of each Lot (other than DH) shall be entitled to no votes . The Class B Member shall have one (1) vote for each Lot it owns and one (1) vote per acre of unplatted land subject to this Dec laration . 3.03 .02 After the Development Period , there shall be one class of voting Members as follows : The Owner of each Lot shall be enti tl ed to one (1) vote per Lot. In the event DH owns unplatted land subject to this Declaration, DH shall have one (1) vote per acre of unplatted land subject to this Declarat ion. Where more than one (1) Owner owns and holds a record f ee interest in a Lot such Owner (s) may divide and cast portions of the one (1 ) vote as they decide, but in no event shall any one (1 ) Lot yield more than one (1) vote . 3.03.03 A majori ty of the Members entitled to vote , represented in person or by proxy, shall constitute a quorum at all meetings of the Members for the transaction of business. When a quorum is present at a meeting, the vote of the holders of a majority of votes present or present by proxy at such meeting and entitled to vote shall be the act of the Members , unless the vote of a different number is required by the Articles of Incorporation or Bylaws of the Association or this Declaration . 3.03 .04 The Association may suspend the voting rights of any Member for any period during which an assessment or installment of an assessment remains del inquent as provided in Article 7 .03 hereof or if a Member is in violation of any provision of this Declaration. 3.04 Powers and Authority of the Association . The Association shall have the powers of a Texas nonprofit corporation, subject only to any limitations upon the exercise of such power as are expressly set forth in this Declaration . It shall further have the power to do and perform any and all acts, which may be necessary or proper for, or incidental to the exercise of any of the express powers granted to it by the laws of Texas or by this Declaration. Without in anyway limiting the generality of the two preceding sentences, the Association, and the Board of Directors acting o n behalf of the Association, shall have the following powers and authority at all times : 3 .04 .01 Rules and Bylaws. To make, establish and promulgate, and in its discretion to amend Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 12 3.04.02 Insurance. To obtain and maintain in effect policies of insurance which, in the opinion of the Board, are reasonably necessary or appropriate to carry out Association functions. 3.04 .03 Records. To keep books and records of the Association's affairs. 3.04.04 Assessments. To levy Assessments as provided herein. 3.04.05 Right of Entry and Enforcement. To enter at any time in an emergency, or in a non - emergency, after ten (10) days written notice, without being liable to any Owner, upon any Lot and into any improvement thereon for the purpose of enforcing this Declaration or Easements or for the purpose of erecting, maintaining or repairing any improvement to conform to the Restrictions, and the expense incurred by the Association in connection with the entry upon any Lot and the work conducted thereon shall be a personal obligation of the Owner of the Lot entered upon, shall be a lien upon the Lot entered upon and improvements thereon, and shall be enforced in the same manner and to the same extent as provided herein for regular and special Assessments . The Association shall have the power and authority from time to time , in .its own name and on its own behalf, or in the name of and on behalf of any Owner who consents thereto , to commence and maintain actions and suits to enforce, by mandatory injunction or otherwise, or to restrain and enjoin, any breach or threatened breach of the Restrictions . The Association is also authorized to settle claims , enforce liens and take all such action as it may deem necessary or expedient to enforce the Restrictions; provided, however, that the Board shall never be authorized to expend any Association funds for the purpose of bringing suit against DH, its successors or assigns . 3 .04 .06 Legal and Accounting Services. To retain and pay for legal and accounting services necessary or proper for the operation of the Assoc iation . 3.04 .07 Delegation to Committees. To set up one or more committees as authorized by the Texas Non-Profit Corporation Act, as the same is amended from time to time . 3.04 .08 Employees. To engage such employees as may be reasonably necessary in the management of the Association and the performance of its duties. 3.04 .09 Conservation Management. To engage a company to assist in the conservation management of the Property. The HOA shall be initially managed by an entity specializing in residential conservation community association management. The initial entity to be retained to perform this task is Texas Conservation Community Association Management Company hereinafter ''TXCAMCO". 3.05 Board of Directors. During the Development Period, the affairs of the Association shall be managed by a board of three (3) individuals elected or replaced by the Class B Member. However, after the Development Period, the Board shall consist of at least three (3) individual Directors elected by the Members . During the Development Period, the Directors need not be Members of the Association. After the end of the Development Period, Directors must be Members of the Association . Directors shall be elected for one (1) year terms of office and shall serve until their respective successors are elected and qualified. After the Development Period, any vacancy which occurs in the board , by reason of death, resignation, removal, or otherwise, may be filled at any meeting of the board by the affirmative vote of a majority of the remaining Directors. Any Director elected to fill a vacancy shall serve as such until the expiration of the term of the Director whose position he or she was elected to fill. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 13 / 3.06 Maintenance. The Association shall be authorized to~~~&~ft~ r&itair?~~ 1rep$4-·~" Easements, rights-of-way, sidewalks, paths, Trails, drainage facilities, detention ponds, lakes, ponds and other areas of the Property, as appropriate . 3.07 Common Areas. Subject to and in accordance with this Declaration, the Association, acting through the Board, shall have the following duties: 3.07 .01 To accept, own, operate and maintain all Common Areas which may be conveyed , shown on the Plat, or leased to it by DH, together with any improvements of any kind or purpose located in said areas; and to accept, own, operate and maintain all other property, real and personal, conveyed or leased to the Association by DH; and to maintain in good repair and condition all lands, improvements, and other Association prope rty owned by or leased to the Association, whether by DH or by other Persons . 3.07.02 To pay all real and personal property taxes and other taxes and assessments levied upon or with respect to any property owned by or leased to the Association, to the extent that such taxes and assessments are not levied directly upon individual Members of the Association . The Association shall have all rights granted by law to contest the legality and the amount of such taxes and assessments. 3.07.03 To execute mortgages, both construction and permanent, for construction of improvements on property owned by or leased to the Association and to accept land in Common Areas , whether or not improved, from DH subject to such mortgages or by assuming such mortgages. Financing may be effected through conventional mortgages or deeds of trust, the issuance and sale of, development or other bonds, or in any other form or manner deemed appropriate by the borrower, whether DH or the Association. The mortgage or other security interest given to secure repayment of any debt may consist of a first, second or other junior lien, as deemed appropriate by borrower, whether DH or the Association, on the improvement to be constructed, together with such underlying and surrounding lands as the borrower deems appropriate . The debt secured by su~h mortgage or other security instrument may be retired from and secured by the revenues generated by dues, use fees, assessment of Members, or otherwise, or any combination thereof, as may be deemed appropriate by DH or the Assoc iation, as the case may be , but subject to the limitations im posed by this Declaration . 3 .08 Association Powers . In addition to, and not in limitation of, the power and authority of the Association as set forth in Section 3.04 of this Declaration , the Association, acting through the Board, shall have the power and authority: 3.08 .01 To grant and convey portions of Association property, including fee title, leasehold estates, easements , rights-of-way, and/or mortgages, to any person or entity for the purpose of constructing, erecting, operating or mainta ining the following . (a) Parks, parkways or other recreational facilities or structures; (b) Roads, streets, walks, driveways, trails and paths; (c) Lines, cables, wires, conduits, pipelines or other means of providing utilities; (d) Sewers , water systems, storm water drainage systems, sprinkler systems and pipelines; and/or (e) Any similar public, quasi-public or private improvements. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 14 / . ~~S46415 B~ 58~~1 ~JP~ Nothing contained in this subparagraph, however, shall be construed to permit use or occupanc;G.0 ariy Common Area or improvement in a way that would violate applicable use and occupancy restrictions imposed by other provisions of this Declaration, or by any statute, rule, regulation, ordinance or other law of any governmental entity, including but not limited to rules and orders of the Texas Commission on Environmental Quality (TCEQ), and any flood plain, industrial waste or other ordinance of the City of College Station or Brazos County, as applicable. 3.08.02 To pay for water, sewer, garbage removal, landscaping, gardening and all other utilities, services and maintenance for the property of the Association. 3.08.03 To pay for any other services necessary or proper in the performance of Association functions, and to pay for any other taxes or assessments that the Association or the Board is required to secure or to pay for pursuant to applicable law, the terms of this Declaration, or the Articles or Bylaws of the Association. 3.08.04 To own and operate any and all types of facilities for both active and passive recreation. 3.08.05 To construct new improvements or additions to Common Areas , subject to the approval of the ACC as required in this Declaration . 3.08.06 To enter into contracts with DH and other persons and entities, on such terms and provisions as the Board shall determine , to operate and maintain any of the Common Areas or to provide any service or perform any function on behalf of DH or the Association in connection with the purposes of the Association. 3.08 .07 To acquire and own and to dispose of all manner of real and personal property, whether by purchase , grant, lease , gift or otherwise. 3 .09 Agreements with Governmental Entities . The Association may enter into one or more agreements with the City of College Station, Brazos County or other municipal , state or federal with respect to the dedication of any drainage basin, park or other Common Area with in the Property for municipal, state or federal maintenance, as applicable . 3.10 Telecommunication Services . (a) The Association, with the prior approval of the Board, may provide , either directly or by contracting with other parties, various telecommunication services to the Lots and Common Areas within the Subdivision . The Board shall have the sole discretion to determine whether or not such telecommunication services are provided, the types of services to be provided (including, without limitation, wireless broadband service), the manner in which such services will be provided, the amounts to be charged, and the method of paying for such services. The Association may include in the Assessment for each Lot the annual subscription fees for any telecommunication service arranged by the Association under this Section 3.1 o. (b) The telecommunication equipment , wiring and other facilities that are necessary to provide the telecommunication services for the Common Areas shall either be owned by the Association or the Association shall contract with other parties to provide such facilities on behalf of the Association . The cost and expense of constructing , installing, operating, maintaining, repairing and replacing such facilities shall be paid by the Association, and may be included as part of the annual assessments and speciar assessments to the Members. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 15 (c) (d) j ~~~Vol Pg :.,008~3'ii' ~ RISS464 t 5 BM sa~!j 1 4 PQ The Association, in its sole and absolute discretion, may require each Dwelling Unft 3 c onstructed on a Lot to include, at the Owner's expense, a Residential Service Unit ("RSU") to provide access to the residence for the telecommunication services described above. The ACC has issued or will issue Telecommunication Guidelines for the Dwelling Units in the Subdivision and may amend such Telecommunication Guidelines from time to time. All Dwelling Units are required meet the minimum requirements set forth in the T elecommunication Guidelines . T he Association and the parties with whom it contracts to provide services relating to the RSU shall have an easement and right of entry over and across each Lot and into each residence for the purpose of installing, maintaining, repairing and replacing and making improvements to the RSU . 3.11 Indemnification. The Association shall indemnify any director, officer, or member of a committee duly appointed pursuant to the Articles or Bylaws who was, is , or is threatened to be made a named defendant or res p ondent in any threatened, pending, or completed action , suit or proceeding , whether civil, criminal, admin istrative, arbitrative , or investigative, any appeal in such an action , suit, or proceeding, and any inquiry or investigation that could lead to such an action, suit, or proceed ing (hereinafter a "Proceeding") by reason of the fa ct that such person is or was a director, officer or member of such a committee of the Associa tion , agai nst all judgments , penalties (including excise and sim ilar truces), fines, sett lements , and reasonable expe nses actually incurred by the person in connection with any such Proceeding to the fullest extent permitted by the Texas Non-Profit Corporation Act, as amended and in effect from time to time. Such authorization of indemnification shall be deemed to be mandatory and deemed to constitute authorization of indemnification a nd advancement of expenses to the fullest extent permitted by the Texas Non -Profit Corporation Act, as amended and in effect from time to time. ARTICLE 4 RESTRICTIONS Each Lo t conveyed by Declarant to an Owne r shall be owned, hel d , encumbe red, leased , used, occupied and enjoyed subject to th e following lim itations and restrict ions : 4.01 BUILDING, CONSTRUCTION , AND USE RESTRICTIONS 4 .01 .01 Design and Construction Approval. The design and construction of all Dwell ing Units , Structures, Improvements and fences on the Property must have the p ri or written approval of the ACC . The process and re quirements for ACC approval are set forth in Article 2. 4 .01.02 Square Footage, Height Requ irements . Except as otherwise approved by the ACC, no Dwelling Un it shall be constructed on any Lot specified below that has a heated living area of less than the square feet specified below, exclus ive of porches (open or covered), decks, garages and carports : Blocks 1 and 2, Phase One : 1,800 square feet Except as otherwise approved by the ACC , no Structure constructed on any Lot shall exceed a height above ground level of thirty-three (33) feet. A Supplemental Declaration applicable to a portion of the Property may specify greater or lesser minimum square footage or height requirements for the Lots subject thereto. Each Owner is encouraged to contact the Association to verify the specific square footage requirements for such Owner's Lot. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 16 j .Jl. Bk Vol Pg . ~0~5639 173 4.01.03 Driveways. All driveways on a Lot must be con§~~~~t1a~phqff or .ii~~ concrete. All driveways require a culvert over the borrow ditch. The culvert may be constructed entirely of concrete or unexposed metal pipe with concrete end treatments . The size of the culvert pipe to be constructed on the driveway of a particular lot shall be as determined and approved by the ACC. The ACC may promulgate and amend from time to time "Culvert Design Guidelines". 4.01.04 Building Materials . Except as otherwise in this Section 4.01.04 or approved by the ACC, all Dwelling Units, Structures and Improvements on a Lot shall be of recognized standard construction quality, and all finished exterior coverings of the front and sides of each Dwelling Unit (exclusive of doors, windows, and similar openings) shall be constructed ofat least seventy-five percent (75%) masonry or other materials specifically approved in writing by the ACC. If a Dwelling Unit is constructed more than one hundred feet ( 100') from the Access Road, the finished exterior coverings of the front and sides of the Dwelling Unit shall be constructed of at least fifty percent (50%) masonry. Masonry includes brick, rock and all other materials commonly referred to in the College Station, Texas area as masonry. 4 .01.05 Structures on Lot. Only one single-family Dwelling Unit and appurtenances thereto such as garages, outbuildings, barns and the like, may be placed or constructed on each Lot. 4 .01 .06 Building Setbacks. Unless otherwise approved by the ACC. the following building set back lines shall govern each Lot: (a) On Lots with even lot numbers in Duck Haven, Phase One, no Improvement or Structure may be located nearer than fifty (50) feet to the front property line of a Lot or a property line abutting an Access Road. (b) On Lots with odd lot numbers in Duck Haven, Phase One, no Improvement or Structure may be located nearer than seventy-five (75) feet to the front property line of a Lot or a property line abutting an Access Road . ( c) On Lots not reflected in Duc k Haven , Phase One , the set back li nes for such Lots wi ll be designated by plat and/or Supplemental Declaration. However, in no event w ill the set back lines described herein be less than those set by governmenta l requirements. 4 .0 1.07 Septic Systems. No Dwelling Unit shall be bui lt without a State of Texas , Brazos County , or other required governmentally approved septic tank or other sewage disposal system that is so approved . At any time prior to the construction of a Dwelling Un it on a Lot, the Association may require the Owners to connect to and be serviced by a sanitary sewer system designated by the Association, which may be a san itary sewer system operated by the City of College Station, the Association , DH or any other provider . 4 .01.08 Antennas and Communication Devices. No exterior antennas, aerials, satell ite dishes , basket or other broadband reception device, or other apparatus for the transmission of television, radio, satellite or other signals of any kind shall be placed, allowed, or maintained upon a Lot, which is visible from any Access Road, Trail, Common Area or Dwelling Unit on another Lot. The ACC may require as much screening as possible while not substantially interfering with reception. Notwithstanding the foregoing , an exterior antenna may be constructed on a Lot in an area that is located behind the Dwelling Unit no closer than 250 feet to any public right of way and no closer than 45 feet to any property line of the Lot. All satellite dishes shall be located on the rear or the Dwelling Unit and not visible from the Access Road. DH and/or the Association shall have the right , without obligation, to erect or install an aerial, satellite dish, master antenna , cable system, or othe r apparatus for the transmiss ion of telev ision , radio , satellite or other signals for the benefit of all or a portion of the Property. No satellite dishes shall be pe rmitted which are larger than 1 me ter Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 17 .. I a~ni.~~~~~~--- ~~S 4641 S 8~ in diameter. No transmitting antenna's mast may exceed the height of the center ridge of the roofline of a building. No MMDS antenna mast may exceed the height of the center ridge of the roofline of a building . In lieu of broadband service, the Association may require an Owner to subscribe to a third party service to provide internet access, including without limitation ISDN or DSL service, to such Owner's Dwelling Unit. DH by promulgating this section is not attempting to violate the Telecommunications Act of 1996 ("the Act"), as may be amended from time to time . This Section shall be interpreted to be as restrictive as possible while not violating the Act. The ACC may alter the provisions of this section with provisions set forth in the Telecommunications Guidelines. In the event of a conflict between this section and the Telecommunications Guidelines, the Telecommunications Guidelines shall prevail. 4 .01.09 Storage of Building Materials. No building material of any kind or character shall be placed or stored upon any Lot more than thirty (30) days before construction of a Structure or Improvements are commenced, and then such ma terial shall be placed within the building set back lines as established above. At the completion of such Structure or Improvements, such excess or scrap material must be immediately removed from the Lot. 4.01.10 Construction Debris. No stumps , trees, underbrush or any refuse of any kind or scrap material from Improvements being erected on any Lot shall be placed on any other Lot , the Access Roads, the Common Areas, Trails or Easements. No change of elevation on any Lake Lot greater than six (6) inches shall be made without the written approval of the ACC . 4.01 . 11 Change of Elevations. Exposed openings resulting from any excavation made of any Lot shall be backfilled and the disturbed ground shall be leveled. No change of elevation of any Lake Lot greater than six (6) inches shall be made without the written approval of the ACC. 4.01.12 Mailboxes. Mailbox stanc hi ons must predominantly utilize materials also used predominantly in the construction of the exterior of Improvements on a Lot or used in the Subdivision entry feature . The design and construction of mailbox stanchion must have the prior written approval of the ACC . If DH or the Association supplies a designated postal box within the Subdivision for a Lot , then an Owner may be required to ut ilize t he supplied box in lieu of a free standing mailbox on the Access Road in front of such Owner's Lot. 4.01.1 3 Utility Lines. No utility lines, including, but not limited to, wires or other devices for the communication or transmission of telephone or electric current or power, cable television or any other type of line or wire shall be erected, placed or mainta ined anywhere in or upon any portion of a Lot unless the same shall be contained in conduit or cab les installed and maintained underground or concealed in, under or on Improvements as approved in writing by the ACC, except what has already been constructed by the City of College Station or Bryan or Brazos County, prior to date hereof; provided, however, that no provision hereof shall be-Oeemed to forbid the erection of temporary power or telephone structures incident to the construction of Improvements which have been previously approved in writing by the ACC. The installation method, including but not limited to location , type of installation equipment trenching method and other aspects of installation for both temporary and permanent utilities, shall be subject to review and approval by the ACC. 4.01.14 Tanks. Except as otherwise approved by the ACC, all tanks for the storage of gas, propane or oil shall be installed below ground level. The ACC shall have the right to approve the location of any other type of tank used on a Lot. All tanks, if not buried as a result of ACC variance, shall be screened so as not to be visible from any other Lot, Access Road or Trail. 4 .01 .15 Wiring Requirements . The ACC has issued or will issue Wiring Guidelines for the Dwelling Units in the Subdivision and may amend such Wiring Guidelines from time to time . All Dwelling Units Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 18 are required to have a structured wiring SY,ste Guidelines. 4.01.16 Completion of Construction. After commencement of construction of any Structure or Improvement, the work thereon shall be diligently prosecuted to the end that the Structure or Improvement shall not remain in a partly finished condition any longer than reasonably necessary for completion thereof. 4.01 .17 Fencing. All fences constructed on a Lot shall be of a size, design, color, location, height and material as determined and approved by the ACC. The ACC has issued Fencing Guidelines and may amend such Fencing Guidelines from time to time. Such Fencing Guidelines will include, without limitation, requirements regarding fence types, locations and quality of materials. Prior to designing, ordering or acquiring any fencing materials or designs for a Lot, all Owners should obtain the current version of the Fencing Guidelines f rom the ACC. No wire fence (hog wire, chicken wire or chain link) may be built on an y Lot. 4.01.18 Stormwater Management. Owners and their contractors shall be responsible for the management of stormwater during construction or ground disturbing activities to prevent erosion and sedime ntat ion from leaving the immed iate construction site or entering into any existing or contemplated Waterway, drainageways, and roadside ditches. During construction of a Dwelling Unit, Structure , Improvement, foundations, driveways, barns, approved landscape areas, or any other construction requiring soil grading activities, Owners and their contractors and agents must use appropriate stormwater management measures , such as silt fencing or hay bales between the construction area and drainageways . Final stabilization with seeding or mulch is required to minimize erosion following construction . 4 .02 GENERAL RESTRICTIONS 4.02.01 Residential Use . Unless otherwise approved by DH or by the Association after the end of the Development Period, each Lot in the S u bdivision shall be used only for non -commercia l, sing le family res idential and recreational purposes . Only single-fam il y resident ial dwellings and appurtenances ordinary to residential living shall be perm itted . To th is end, w ithout limitation , the follow ing structures may no t be built on any Lot (excluding any portion of the Property owned by DH} in the Subdivision ; hospitals , clinics , rest homes , duplex houses , apartment houses, mobile homes , manufactured housing, hotels , or any retai l wholesale , or other bus iness or commercial establishments of any kind. 4.02 .02 No Noxious Use . No noxious or offensive trade or activity shall be carr ied on upo n any Lot nor shall anything be done which may be or become an annoyance or nuisance to other Owners or the Subdiv ision. · 4 .02.03 No Commercial Activities . Unless approved in wri ting by the ACC, no commerc ial activity of any kind shall be conducted on any Lot (excluding any portion of the Property owned by DH). "Commercial activity" shall include but not be limited to, the offering for sale of any product or service, or the • manufacture or growth of any product, for purposes of sale, without regard to whether such activities are conducted in or from a Dwelling Unit or otherwise. The ACC shall have the right and power to stop or restrict any such approved Commercial activity if the ACC determines in its sole discretion that the business or activ ity is detrimental to the Subdivision. 4.02.04 Animal Restrictions . No an imals, livestock, or poultry of any kind shall be raised , bred, or kept on any Lot within the Subdivision for commercial purposes . No swine or poultry may be kept or maintained on any Lo t. There w ill be no wild , exotic, or naturally undomesticated animals allowed to be caged or otherwise kept on any Lot. No animals including dogs and cats will be allowed to roam free in the Subdivis ion . In the event any animal creates a nuisance to the Subdivis ion in the sole and exclus ive opinion Declarati on of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 19 of the ACC such animal will be removed from the Subdivision. The A§~~~~h~~e ~~ rigfii~e~n~er a~'!07 remove any such animal which is placed on any Lot in violation of this Section, and in so doing, shall not be liable and is expressly relieved from any liability for trespass or other sort in connection therewith, or arising from such removal. Each Lot shall be allowed one horse (or mare and colt less than 12 months) or other large animal unit per one (1) acre. A large animal unit means one horse, one mule, four (4) adult rabbits, one cow, one goat, one sheep or one llama. Cats and dogs shall not constitute animal units; however, the total number of cats and dogs on any Lot shall not exceed five (5). 4.02 .05 Signs. No sign, except: (a) signs (not exceeding 5 square feet in size) advertising property for sale or rent; (b) not more than two (2) political signs; (c) school spirit signs; or (d) security signs, advertisement, billboard, or advertising structure of any kind may be erected or maintained on any Lot without the consent in writing of the ACC . DH or the ACC shall have the right to enter and remove any such sign , advertisement, billboard or structure which is placed on any Lot without such consent, and in so doing, shall not be liable and is expressly relieved from any liability for trespass or other sort in connection therewith, or arising from such removal. 4 .02.06 Disposal ofTrash . No part of the Subdivision shall be used or maintained as dumping grounds for rubbish . Trash, garbage or other equipment for the storage or disposal of such material shall be kept in a clean and sanitary cond \tion . 4.02 .07 Neat and Clean Condition . Owners shall no t permit the accumulation of tras h, rubbish, weeds , or other unsightly obstacles on their Lots or on the Ease m en ts or on th e streets abutting th e same . Each Owner shall be respons ible for proper disposition of his trash and garbage . Owne rs must mainta in all portions of the ir Lots visible from an Access Road, Tra il, Common Area or Dwelling Un it on another Lot in a neat and clea n condition . 4.02 .08 Drainage Maintenance . Owners shall be responsible for keeping Drainage Easements and Dra inage Maintenance Easements free of obstructions and shall not permit fences or other obstructions to be placed in said easements . Owners shall also be responsible for stabilizatio n of slopes in Drainage Easements and Drainage Maintenance Easements . 4.02 .09 No Pollution . No act may be performed which is likely to pollute the air or water in any part of the Subdivision, nor may any Owner violate any federal, state or local ordinance or regulation designed to eliminate pollution at that time in force. 4 .02.10 Firearms . Except as otherwise provided here in , no firearms may be discharged in the Subdivision or on any Lot, Easement Area or Common Area . 4.02.11 Oil and Gas Drilling . No oi l or gas drilling, bor ing , development , refining , quarrying or mining opera t ions of any kind shall be permitted on the surface of any Lot, nor shall any wells, tanks , tunnels, mineral excavations or shafts be permitted on the surface of any Lot. No derrick or other structures designed for use in boring or drilling for oil, natural gas, or other mineral shall be erected, maintained or permitted on an y Lot. This paragraph does not prohibit the pooling of all or part of the Subdivis ion with other Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 20 property for drilling of horizontal or slant hole wells , which do not interfe~ftRftJt?sJmthe~~~ of ffitt~ Property. 4 .02.12 No Vehicles in Common eas. No motorized, including without limitation vehicles powered by electric, gasoline, diesel, propane o hydrocarbon-fueled engines, other than passengers of service automobiles shall be used in the Com on Areas, used on paved areas designed for parking or vehicular traffic, including without limitation, any Trails, and excluding any paved areas specifically designed for the parking or driving of automo iles; provided however, the Association and/or DH may use motorized vehicles on the Trails for the constr ction, maintenance, inspection and repair of the Trails. Bicycle use in the Common Areas is restricted o :T r. ils as provided by Section 4.04 .03 and may be restricted in other portions of the Common Areas to areas signated by the Association. 4.02 .13 Lot Subdivision Restrictions . No Lot may be subdivided into smaller lots within twenty-five (25) years after the date of this Declaration, without the prior written consent of DH . This provision does not apply to any portion of the Property owned by DH . 4.02.14 Storage of Vehicles. No trailer, recreational vehicle, tent, boat, or stripped down, wrecked , junked, or wholly inoperable vehicle shall be kept, parked, stored , or maintained on any portion of a Lot visible from an Access Road or another Lot for more than forty-eight (48) hours in a thirty (30) day period . No large commercial truck (larger than a standard pickup) or 18 wheel truck shall be kept, parked , stored or maintained on any portion of a Lot or on an Access Road, unless such truck is a provider of equipment or services to a Lot and in no such case shall such a vehicle be parked overnight on an Access Road or Lo t. 4 .03 RESTRICTIONS FOR WATERWAYS AND LAKES **Any changes to these Restrictions regarding any Lake(s) or to the operation or conditions of any Lakes should not be made without first taking the necessary actions as required by any and all governmental authorities having jurisdiction over the Lake(s}.** 4 .03 .01 Construction on Lake. Unless the pri or written approva l of DH or, after t he Development Period , the Association is obtained , wh ich approval may be w ithheld by DH or th e Association , as applicable , in their sole and absolute discretion: (a) no wharf, pier, bulkhead, or other structure or obstruction shall be built or maintained into or upon any Waterway or Lake. No structure or obstruction shall be permitted if it offers any threat whatsoever to safe navigation upon such Waterway or Lake or to the safe and convenient use of such Waterway or Lake as a recreation facility . (b} no boat canal shall be constructed or installed upon any Lot nor shall any facility or device be constructed or installed upon any Lot which shall in any way alter the course or boundaries of any Waterway or Lake, or which shall involve or result in the removal of water from any Waterway or Lake. (c) no boats, hoists, launching facilities or any similar type of structures or equipment shall be installed, constructed or maintained upon any Lot, nor shall any boat trailer be stored on any Lot in such manner as to violate the regulations of the Association . 4.03.02 Boats . No boat powered by gasoline, diesel, propane or hydrocarbon-fueled engine of any k in d shall be operated upon any Waterway or Lake witho ut the prior written approval of th e Association. Boat operation on any Waterway shall conform to all rules and regulations promulgated by : Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 21 (a) Association; and (b) applicable governmental authorities concerning the use of the boats. The Association may further, by rule, regulate and limit the size, type and number of water craft used on a Lake or Waterway. 4 .03 .03 Fishing Regulation: Lake Rules. A limit of the type and quantity of fish taken from a Lake or Waterway may be established by rules of the Association from time to time . Owners and their family, guests and tenants shall comply with all applicable government regulations relating to fishing on the Lakes and Waterways . The Association may establish other rules concerning the use of the Lakes and Waterways by the Owners and their family, guests and tenants . 4.03.04 No Removal of Water. No water may be pumped or otherwise removed from a Lake or Waterway for the private use of any Owner. 4 .03 .05 Erosion Control. The Owner of each Lake Lot shall be responsible for all temporary erosion control measures required during construction on his Lot to ensure that there is no erosion into any Lake and such Owner shall be responsible for any repair or maintenance required due to erosion caused by construction on his Lot. The Owner of each Lot shall utilize the current and best stormwater management practices on his Lot. 4 .03 .06 Shoreline Clearing Restrictions. The Owner of any Lake Lot may not clear, disturb or remove natural shoreline vegetation existing along the shore of such Lake Lot without the prior approval of the ACC. The ACC will allow the Owner to clear no more than forty percent (40%) of the natural shoreline vegetation located within one hundred feet (100'} of the shoreline existing as of the date hereof provided the Owner complies with the provisions of Article 2 in seeking the ACC's approval. For each ten percent (10%) of shore line vegetation cleared by Owner, the ACC may require the Owner to plant, wi thin one hundred feet (100 ') of the property line abutting the Lake, at least one disease resistant hybrid live oak tree with a m inimum diameter of two inches (2") and a minimum height of six feet (6'). 4 .03 .07 No Dumping. No sewer, drain or other waste water, other than natural watershed drainage, shall be permitted by any Owner to empty, directly or indirectly, into a Lake or Waterway. No Owner or occupant of a Lake Lot shall dump or place refuse or any other materia l into a Lake. 4.03.08 No Release of Wildlife. No Owner or occupant of any Lake Lot shall release or introduce any w ildlife, waterfowl, reptiles or fish into a Lake or the Subdivision . -4.04 RESTRICTIONS RELATING TO CONSERVATION DEVELOPMENT The Duck Haven Estates is intended to be a conservation development. This means Owners shall take proactive actions necessary to minimize destruction and disturbance of natural habitats including but not limited to: plant, animal, resident and migratory bird and aquatic species . 4 .04 .01 Landscape Buffer. On each Lot between the front property line adjacent to the Access Road and the front building line of the Dwelling Unit, the Owner shall maintain at least one landscape buffer area with dimensions of at least twenty feet {20') by forty feet (40'). The landscape buffer area shall remain in a natural, undisturbed state that includes, without limitation, all trees and understory plants. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 22 4.04.02 Trees . Any live tree located on or within ten fee~~~~pp~~ive~~ and slab location of any Improvement on a Lot may be removed . All other trees on a Lot are subject to the following restrictions: (a) Lot Size of Two Acres or ss : Any live tree with a trunk diameter/caliper measured from three feet (3'} off he ground, equal to or greater than four inches (4") in diameter/caliper may t be removed without ACC approval. (b) Lot Size of Two Acr or More : Any live tree with a trunk diameter/caliper measured from three feet ) off the ground, equal to or greater than six inches (6") in diameter/caliper may not be removed without ACC approval. 4.04 .03 Trails . There are or will be trails on the Property which may lead to a park, sport court and other contemplated Common Areas. The Trails are designated on the Plat as Private Trails or may be designated by the Association from time to time in the Common Areas. No vehicles powered by battery, gasoline , diesel, propane or hydrocarbon-fueled engines shall be used on the Trails; provided however, DH and the Association may use . motorized vehicles on such riding trails for the construction, maintenance, inspection and repa ir of the Trails. No bicycles shall be used on any Trail unless the Association specifically designates that bicycles may be used on such Trail. No animals, other than domestic pets on leash, may access the Trails . 4.04 .04 Conservation Areas, Corridors & Parks . The Subdivision may contain conservation corridors and private parks, which may include the Trails and portions of the Common Areas. The Association will mainta in CAC&P plans and post seasonal rules and restrictions for permitted uses in the CAC&P. Each park, corridor or area has been set aside, enhanced and/or is managed for specific habitat, aquatic or wildlife management for species indigenous to that area or region of the Property. No Owner, tenant, guest or invitee of an Owner may d isturb or harm any plants , trees or animals in the CAC&P areas. 4 .04 .05 Streams, Channels, Creeks, Borrow Ditches and Waterways . All Waterways , Drainage Easements and Riparian Management Easements, are regulated by the Association through the ACC and may not be impacted by any activity of an Owner on his Lot without written approval of the ACC to be granted or denied in its sole and absolute discretion. No Owner shall impede, restrict , dam or alter any Waterway . Some but not all of the restricted areas may be reflected on the Plat(s) as Drainage Easements and other restricted areas may be reflected and described on a Stream Map and Identification Table to be prepared and modified from time to time by the ACC in its sole and absolute discretion. Notwithstanding the foregoing , if a channel or Waterway exists with a visible high water mark that is not reflected to be subject to a drainage easement on the Plat or on the Stream Map and Identification Table, then, the channel/Waterway shall be subject to the Riparian Management Easement described in Section 8.06 below. ARTICLE 5 WATER SERVICE; NO PRIVATE WELLS The Subdivis ion is serviced by a special ut ility district. Each Lot Owner desiring said water service shall be required to contract directly with the special utility district. The cost of water, tap fees , membership fees, expansion reserve fees, installation fees, monthly use fees and meters shall be subject to the fee schedule of the special utility district and paid by the Lot Owner. No well, pump, shaft, casing or other facilities for the removal of subsurface waters shall be placed or maintained on any Lot, and no boring, drilling, removal of, or exploitation for , subsurface water or the injection of water or waste water shall be conducted on any Lot. Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 23 =~s~ ~e ~ ~61S4641s Bff saM!j 1 25t" ARTICLE 6 RIGHTS OF ENJOYMENT IN THE COMMON AREAS 6.01 Easement. Subject to the provisions of Sections 6.02 through 6.07, each and every Owner in good standing with the Association shall have a non-exclusive right and easement of enjoyment in and to all Common Areas, and such easement shall be appurtenant to and shall pass with every Lot, provided the conveyance and transfer is accomplished in accordance with this Declaration. All Owners in good standing with the Association shall have a non-transferable, non-exclusive privilege to use and enjoy all Common Areas for so long as they are Members in good standing with the Association . 6.02 Extent of Members' Easements. The rights and easements of use, recreation and enjoyment created hereby shall be subject to the following : 6 .02.01 The right of DH or the Association to prescribe reasonable regulations and policies governing, and to charge reasonable expense reimbursements arid/or related to, the use, operation and maintenance of the Common Areas ; 6.02.02 Liens or mortgages placed against all or any portion of the Common Areas with respect to monies borrowed by the DH to develop and improve the Property or Common Areas or by the Association to improve or maintain the Common Areas ; 6 .02.03 The right of the Association to enter into and execute contracts with any party (including, without limitation, the DH or its affiliates) for the purpose of prov iding management, maintenance or such other materials or services consistent with the purposes of the Association and/or this Declaration; 6.02.04 The right of the DH or the Association to take such steps as are reasonably necessary to protect the Common Areas against foreclosure ; 6.02.05 The right of the DH or the Association to enter int o and execute contracts with the owner-operators of any commun ity antenna television system ("CATV") or other sim il ar operation for the purpose of extend ing cable or utility or security service on, over or under the Common Areas to ultimately provide service to one or more of the Lots; 6.02 .06 The right of the DH or the Association in accordance with the requirements of the Texas Property Code to suspend the voting rights of any Member and to suspend the right of any Member to use or enjoy any of the Common Areas for any period during wh ich any assessmen t (including without limitation "fines ") against a Lot resided upon by such Member remains unpaid, or during which non-compliance with this Declaration exists, and otherwise for any period deemed reasonable by the Association for any infraction of the then-existing rules and regulations and/or Architectural Guidelines; 6.02 .07 The right of the DH and/or the Association to dedicate or transfer all or any part of the Common Areas to any municipal corporation, public agency, governmental authority, or utility for such purposes and upon such conditions as may be agreed to by the DH and the Board; and 6.02 .08 The right of the DH and/or the Association to grant permits, licenses and easements over the Comm on Areas for utilities, roads and other purposes necessary for the proper operation of the Subdivision. 6.03 Restricted Actions by Members. No Member shall permit anything to be done on or in the Common Areas which would violate any applicable public law or zoning ordinance or which would result in . the cancellation of or the increase of premiums for any insurance carried by the Assoc iat ion , or which would Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 24 Vo~ S639 be in violation of any law or any rule or regulati n promulgated by the Biii.46415 B~ 58~~ 1 25~ 6.04 Dele ation of Use· Dama to the Common Areas. Each Member shall have the right to extend his right of enjoyment to the Common Areas to the members of his family and to such other persons as may be permitted by the Association and subject to the rules of the Association concerning use of the Common Areas. An Owner shall be deemed to have made a delegation of all such rights to the tenant of any leased residence and such Owner shall not have the right to use the Common Areas during such tenancy. Each Member 'shall be liable to the Association for any damage to any portion of the Common Areas caused by the negligence or willful misconduct of the Member or his family, guests and/or tenants . 6.05 Rules of the Board. All Members shall abide by any rules and regulations adopted by the Board. The Board shall have the power to enforce compliance with said rules and regulations by all appropriate legal and equitable remedies, and a Member determined to have violated said rules and regulations shall be liable to the Association for all damages and costs, including reasonable attorneys' fees . 6.06 Use of Common Areas. The Board shall have the power and authority to prescribe rules and regulations, which extend to and cover matters such as (but not limited to) the possession and consumption of alcoholic beverages, loud and obnoxious noises and behavior, types of uses allowed on the Trails and CAC&P and the supervision by attending adults of children. No person or entity (excluding DH) shall use any portion of the Common Areas to: 6.06.01 solicit, promote or conduct business, religious, political or propaganda matters; 6.06 .02 distribute handbills, newsletters, flyers, circulars or other printed materials, without the prior written consent of the Association (which consent may be withheld in its sole and absolute discretion). The Association may permit and allow reasonable activities to occur on the Common Areas in accordance with rules and regulations deemed reasonable and appropriate by the Association . 6 .07 User Fees and Charges. The Board may levy and collect special charges and fees for any and all extraordinary operation and maintenance of the Common Areas and services that the Board determines to be necessary for the advancement, benefit and welfare of the Owners. Examples (by way of illustration, and not limitation) of these special charges and fees would include : extraordinary ·utility consumption; additional security personnel for parties or special events; management overtime services; and additional insurance conditions or requirements. In establishing special user fees, the Board may formulate reasonable classifications of users . Such fees should be uniform within each class but need not be uniform from class to class . If an Owner shall fail to pay a charge or fee when due and payable, said unpaid charge or fee shall be delinquent and upon written notice to said Owner shall become a personal debt of said Owner. Failure of any Owner to pay said fee and charge when due and payable, in addition, shall be a breach of this Declaration . 6 .08 Encroachments . If: (a) construction, reconstruction or repair activities which have been approved by the ACC; or (b) shifting, settlement or other movements of any portion of ACC approved improvements ; results either in the Common Areas encroaching on a Lot or Dwelling Unit or in a Lot or Dwelling Unit encroaching on the Common Areas or on another Lot or Dwelling Unit , and unless otherwise directed by the ACC, a val id easement shall then and there exist to permit the encroachmen t and reasonable and necessary maintenance activities related thereto . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 25 / ~.~~ ~~s4641s Bff saM~1 2sgr. ARTICLE 7 FUNDS AND ASSESSMENTS 7.01 Assessments. The Association may from time to time levy Assessments against each Lot whether or not improved. The level of Assessments shall be equal and uniform among all Lots, provided, however, that no Assessments hereunder shall be levied against DH. Where the obligation to pay an Assessment first arises after the commencement of the year or other period for which the Assessment was levied, the Assessment shall be prorated as of the date when said obligation first arose in proportion to the amount of the Assessment year or other period remaining after said date . Each unpaid Assessment together with such interest thereon and costs of collection thereof as hereinafter provided, shall be the personal obligation of the Owner of the Lot against which the Assessment falls due, and shall become a lien against each such Lot and all improvements thereon. The Association may enforce payment of such Assessments in accordance with the provisions of this Article. 7.02 Maintenance Fund . The Board shall establish a maintenance fund into which shall be deposited all monies paid to the Association and from which disbursements shall be made in performing the functions of the Association under this Declaration. The funds of the Association must be used solely for purposes authorized by this Declaration, as it may from time to time be amended. 7.03 Regular Annual Assessments. Prior to the beginning of each Fiscal Year , the Board shall estimate the expenses to be incurred by the Association during such year in performing its functions under this Declaration , including but not limited to the cost of all Common Area, right-of-way, Trails and Lake maintenance, the cost of enforcing this Declaration, and a reasonable provision for contingencies and appropriate replacement reserves, less any expected income and any surplus from the prior year's fund . Assessments sufficient to pay such estimated net expenses shall then be levied as herein provided, and the level of Assessments set by the Board shall be final and binding so long as it is made in good faith . If the sums collected prove inadequate for any reason, including nonpayment of any individual Assessment, the Association may at any time, and from time to time , levy further Assessments in the same manner as aforesaid. All such regular Assessments shall be due and payable annually in advance to the Association at the beginning of the fiscal year or during the fiscal year in equal monthly installments on or before the first day of each month, or in such other manner as the Board may designate in its sole and absolute discretion . Assessments or installments of assessments not paid as provided herein are delinquent. 7 .04 Special Assessments. In addition to the regular annual Assessments provided for above, the Board may levy Special Assessments whenever in the Board's opinion such Special Assessments are necessary to enable the Board to carry out the functions of the Association under this Declaration. The amount and due date of any Special Assessments shall be at the reasonable discretion of the Board . 7 .05 Owner's Personal Obligation for Payment of Assessments ; Late Fees. The regular and special Assessments provided for herein shall be the personal and individual debt of the Owner of the Lot covered by such Assessments. Except as otherwise provided in Section 7.01 hereof, no Owner may exempt himself from liability for such Assessments. In the event of default in the payment of any such Assessment, the Owner of the Lot shall be obligated to pay interest on the delinquent Assessment at the highest rate allowed by applicable usury laws then in effect on the amount of the Assessment from due date thereof (or if there is no such highest ra te, then at the rate of 1-1 /2% per month), together with all costs and expenses of collection, including reasonable attorney's fees . Additionally, if an Assessment or installment of an Assessment is not paid when due, an additional amount of five percent (5%) of such Assessment or installment (the "Late Fee") shall be immed iately due and payable, provided the Late Fee may be reduced or waived by the Association for good cause. The Late Fee is assessed to compensate for the administrative costs and expenses of collection of the Assessments . Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 26 y ' ~-!Sb . · 7.06 Assessment Lien and For closure. All sums assessed i~ii~~§-JfiideEP~1 ArtietSiftf but unpaid, shall, together with interest as provided in Section 7 .05 hereof and the cost of collection, including attorney's fees as herein provided, thereupon become a continuing lien and charge on the Lot covered by such Assessment, which shall bind such Lot in the hands of the Owner, and such Owner's heirs, devisees, personal representatives, successors or assigns . The aforesaid lien shall be superior to all other liens and charges against the said Lot, except only for tax liens and all sums unpaid on a first mortgage lien or first deed of trust filed of record, securing in either instance sums borrowed for the acquisition or improvement of the Lot in question. The Association shall have the power to subordinate the aforesaid Assessment lien to any other lien. Such power shall be entirely discretionary with the Board and such subordination shall be effectuated by an officer of the Association, duly authorized by the Board. To evidence an Assessment lien, the Association may, prepare a written notice of Assessment lien setting forth the amount of the unpaid indebtedness, the name of the owner of the Lot covered by such lien, and a description of the Lot. Such notice shall be signed by an officer of the Association, duly authorized by the Board, and shall be recorded in the office of the County Clerk of Brazos County, Texas. Such lien for payment of Assessments shall attach with the priority above set forth, from the date that much payment becomes delinquent, and, subject to the requirements of the Code (as defined in Section 7.08) may be enforced subsequent to the recording of a notice of Assessment lien as provided above, by the foreclosure of the defaulting Owner's Lot by the Association in like manner as a mortgage secured by a deed of trust on real property, or the Association may institute suit against the owner personally obligated to pay the Assessment and/or for foreclosure of the aforesaid lien judicially. In any foreclosure proceeding, whether judicial or not judicial, the owner shall be required to pay the costs, expenses, and reasonable attorney's fees incurred by the Association. The Association shall have the power to bid on the property at foreclosure or other legal sale and to acquire, hold, lease, mortgage, convey or otherwise deal with the same. Except as otherwise provided, upon closing of the initial sale of each Lot, the purchaser shall pay dues in the amount of dues set by the Association for each full calendar month until the end of the current year. Said dues will be paid to the Association or accumulated by DH in the absence of an Association . Said funds will be utilized by DH solely for maintenance of Common Areas and the balance shall be paid to the Association when it is formed. The Association shall have the right to designate any other event after closing the initial sale of a Lot as the date upon which the Owner will be obligated to begin paying dues to the Association. The terms of this Article 7 are subject to the requirements of Chapter 209, Texas Property Code, as amended from time to time (the "Code"). ARTICLE 8 EASEMENTS 8 .01 Reserved Easements . All dedications, limitations, restrictions, and reservations shown on any plat.covering all or any portion of the Property and all grants and dedications of easements, rights-of-way, restrictions, and related rights made by DH prior to the Property becoming subject to this Declaration, are incorporated herein by reference and made a part of this Declaration for all purposes as if fully set forth herein, and shall be construed as being adopted in each and every contract, deed or conveyance executed or to be executed by or on behalf of DH conveying any part of the Property. DH reserves the right to make changes in and additions to the said easements and rights-of-way for the purpose of most effectively, efficiently and economically developing and marketing the Property. Further, DH reserves the right, without the necessity of the joinder of any Owner or other person or entity, to grant, dedicate, reserve or otherwise create, at any time or from time to time, Common Areas, rights-of-way and easements for public utility purposes (including, without limitation, gas, cable, water, electricity, telephone and drainage), in favor of any person or entity, along and on either or both sides of any Lot line, any such easement having a maximum width of ten (10) feet on each side of such Lot line. The easement areas described in this Section 8.01 and Section 8.02 shall be known as "Reserved Easement Areas". Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 27 r Doc B 00846415 0 Vol ~P.,~/ 5883 2 ~ . . 8.02 Installation and Maintenance. Easements for installation and maintenance of utilities and drainage facilities are reserved as shown on the recorded plat of the Property. Within these easements, if any, no structu re or other material shall be placed or permitted to remain which may damage or interfere with the installation and maintenance of utilities; or in the case of drainage easements, which may change the direction of flow of water through drainage channels in such easements. The Reserved Easement Area of each Lot and all Improvements in such area shall be maintained continuously by the Owner of the Lot, except for those Improvements for which a public authority or utility company is responsible. 8.03 Surface Areas. The surface of Reserved Easement Areas for underground utility services may be used for planting of shrubbery, trees, lawns or flowers. However, neither DH nor any supplier of any utility service using any Easement Area shall be liable to any Owner or to the Association for any damage done by them or either of them , or their respective agents, employees, servants or assigns , to any of the aforesaid vegetation as a result of any activity reasonably relating to the construction, maintenance, operation or repair of any facility in any such Easement Area . 8.04 Drainage Easements . Each Owner covenants to provide easements for drainage and water flow, as contours of land and the arrangement of Improvements approved by the ACC thereon require . Each Owner further covenants not to disturb or displace any trees or other vegetation with in the drainage easements as defined in this Declarat ion and those shown on the Pla t. There shall be no construction of improvements, temporary or permanent, in any drainage easement, except as may be approved in writing by the ACC . Collectively, the drainage easements shown on the Plat, if any, and the drainage easements defined in this Declaration shall be known as "Drainage Easements." 8.05 Blanket Easement. An easement is hereby retained in favor of the Assoc iat ion over all Lots and the Common Areas for the purpose of enforcing the Covenants in accordance with Section 9.13 hereof, and for the construction of a common cable television or other telecommunications system , a common sprinkler system , maintenance of la ndscaping , or any other item for the common bene fi t of the Owners . An easement is fu rth er granted for the purpose of repair ing and maintain ing any such syste m so cons tructed . An entry upon any Lo t or the Common Areas to effectuate the forego ing purposes sha ll not be deemed as trespass. 8 .06 Riparian Managemen t Easement. On each Lot, there is hereby retained in favor of DH and the Association a perpetual seventy-five foot (75 ') easement or such greater easement area as may be determined by the ACC and ident ified on the Stream Map and Identification Table , riparian managemen t easement located on either side of any creek, channel, tributary or other Waterway located on such Lot for the purpose of m aintaining such Waterway and drainage way , maintaining wildlife habitat , erosion control and other work nece ssary or desirable in connection with the Waterway. An entry upon any Lot by DH or the Association to effectuate the foregoing purposes shall not be deemed as trespass . Neither DH nor the Association sha ll be liable to any Owner for any damage done by them or either of them , or their respective agents, employees , servants or ass igns , to any of the vegetation in the Riparian Management Easement as a result of any activity reasonably related to the purpose of the Riparian Management Easement. ARTICLE 9 MISCELLANEOUS PROVISIONS 9 .01 Applicability. Th is Declaration is adopted as part of and , except as expressly provided herein , shall apply to each and every Lot in the Subdivision . This Declaration is equally for the benefit of all subsequent Owners of Lots in the Subdivision and accordingly, shall be covenants running with the land . Any Owner or lienholder of any of the Property or the Association shall have the power to prosecute in the appropriate co urt a suit at law or in equity to prevent any violation or att empted violation of this Declaration and to recover damages for any violation or attempted violation including, but no t lim ited to, reasonable Declaration of Covenants, Conditions, Reservations and Restrictions of Duck Haven Estates Page 28 CITY OF COLLEGE S TAT ION Planning & D evelopmmt Serv ices 1101 Texas Avenue, P.O . Box 9960 College Station, Texas 77842 Phone 979 .764 .3570 I Fax 979.764 .3496 MEMORANDUM October 15, 2007 TO : Travis Martinek, Clarke & Wyndham, via fax: 979 .846.1461 FROM : SUBJECT: Jennifer Prochazka, AICP, Senior Planner DUCK HAVEN PH. 5 (FP) -Final Plat 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 . If all comments have been addressed and the following information submitted by Monday, October 22 , 2007 at 10 :00 a .m ., your project will be placed on the next available Planning and Zoning Commission meeting scheduled for Thursday , November 15 , 2007 at 7:00 p.m. in the City Hall Council Chambers , 1101 Texas Avenue . One (1) 24 "x36 " copy of the revised final plat ; Sixteen (16) 11 "x17" copies of the revised final plat ; New certified tax certificates submitted prior to the filing of the final plat ; One (1) copy of the digital file of the final plat on d iskette or e-mail to mtrevino@cstx.gov; and The Mylar original of the revised final plat with the owner and County Judge 's signatures (will be required after the County 's approval). 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 if all comments have not been addressed, your project will not be scheduled for the Planning & Zoning Commiss ion 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 follow ing web site on Monday the week of the P&Z meeting . http ://www.cstx .gov/home/index .asp?page=2481 Please note tha t a Mylar original of the rev ised 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 cc: McClure & Browne Engineering , via fax: 979 .693.2554 Gary Arnold , Brazos County Planning & Traffic, via fax 979.775 .0453 Case file #07-00500245 STAFF REVIEW COMMENTS NO. 1 Project: DUCK HAVEN PH. 5 (FP)-07-00500245 PLANNING / 1. Tie to a College Station Monument (Sven Griffin). 2. Since the rear of lots 1-7 abut unplatted property, a 20-foot easement is required . 3. Please provide the volume and page of the 75' Pr.D.E. shown to the northeast of the subdivision . 4. Please provide a copy of the approved Preliminary Plat (required with Final Plat submittal ). Reviewed by : Jennifer Prochazka Date : October 12 , 2007 ENGINEERING COMMENTS NO. 1 1. Documentation show ing volume and page of dedication of off-s ite Private Drainage Easement will be required prior filing of the Plat at the Courthouse . 2 . Add note stating who has maintenance responsibility of Private Drainage Easement. 3. Co nstruction plans and reports st ill under review . Reviewed by: Carol Cotter Date : October 14, 2007 FIRE 1. No comments Reviewed by : Steve Smith Date : 10/09/07 SANITATION 1. Sanitation is ok with th is project. Reviewed by : Wally Urrutia Date : October 10 , 2007 GENERAL ELECTRICAL COMMENTS 1. This plat is in the College Station ET J , but is out of the College Station Utility electric service area . Customer will have to get with their electric supplier for this area to determine electric service specifications and requirements . Reviewed by Timothy Crabb , CSU Electric , (979) 764-3439 Date : 10/10/07 DUCK ''"' EN PHASE 5 -FINAL PLAT RESPONSE TO STAFF REVIEW COMMENTS PLANNING 1. See attached revised Final Plat. 2 . Based on an email response from Jennifer, we will be allowed to plat a 10 ' easement along the rears of Lots 1-7 in Phase 5 and plat the remainder of the required 20 ' easement on the rears of the abutting Phases 4 & 6 lots . 3. The drainage easement will be filed of record prior to the filing 4. See attached approved Preliminary Plat. ENGINEERING 1. The drainage easement will be filed of record prior to the filing of the Final Plat. 2. See attached revised Final Plat. 3. No comment at this time . FIRE 1. No comment. SANITATION 1. No comment. ELECTRICAL 1. No comment. 10/17/2007 Page 1 of 1 STAFF REPORT Project Manager: Jennifer Prochazka , AICP , Sr. Planner Report Date: November 5, 2007 Email: jprochazka@cstx.gov Meeting Date: November 15 , 2007 Project Number: 07-00500245 Item: Presentation , possible action , and discussion on a Final Plat for Duck Have Phase V , consisting of 15 lots on 19 .96 acres located southwest of the intersection7 f Wei orn Road and Drake Drive in the City 's ETJ (Extra-Territorial Jurisdiction). Applicant: Travis Martinek , agent for Duck Haven Ltd ., property owner Staff Recommendations: Staff recommends approval of the final plat. ET J Plats -Brazos County's comments and recommendations: None Item Summary: This item is for a new phase of the Duck Haven , which cont i nues the rural residential development of the subdivision. Phase V is consistent with the density of previous phases. Comprehensive Plan Considerations: Duck Haven is in College Station's ET J . The Land Use Plan shows the area to be developed at a rural density (very low density residential development with agricultural and support uses); however, the City does not control land use in the ET J , but does share platting authority with the County. Wellborn Road is identified as a major arterial on the Thoroughfare Plan . Item Background: The master plan for Duck Haven was filed in early 2001 and the original Duck Haven preliminary plat was filed in November 2001 . Although the previous plat had not yet expired , a new preliminary plat was approved in August 2006 in order to alter the layout of the subdivision. Phase V was again preliminary platted in 2007 . Because this project has remained active through the submission of various final and amending plats , and has vested under previous ordinances , certain development requirements, including the requirements to provide fire flows in the ET J , are not applicable to this project. Saddle Creek, a similar subdivision abutting Duck Haven to the northwest and southwest, has an approved master plan and preliminary plat, and has final platted several phases . A street connect ion will be required between the two developments for connectivity and access , which Saddle Creek has provided . Commission Action Options: The Commission has final authority over the final plat. The options regarding the final plat are : • Approval • Denial Supporting Materials: 1. Small Area Map (SAM) and Aerial Map 2. Application 3 . Copy of or Final Plat (provided in packet) MINUTES PLANNING AND ZONING COMMISSION Regular Meeting ....----------------, Thursday, November 15, 2007, at 7:00 p.m. City Hall Council Chambers 1101 Texas Avenue College Station, Texas C O MMISSIONER S P RESENT: Chairman John Nicho ls, Glenn Schroeder, Marsha Sanford and Noel Bauman C O MMI SS IONER S AB SENT: Bi ll Dav i s CITY C O UNCIL MEMBE R S P RESENT: 1. 2 . • Haro ld Strong (October 24, 200 7) Special Meeting • Marsha Sanford (October 24, 2 007) Special Meeting 3.2 Consideration, discussion , and possibl e action to approve meeting Minutes. • November 1, 2007 Workshop • November 1, 2007 Regular November 15 , 2007 P&Z Regul ar Meeting Minutes Page 1 of 4 3 .3 Presentation , possible action, and discu ssio n on a Fi al Plat for A&M Super Storage at Wellborn Subdivision consisting of 1 lot 2.3 acres located at 4000 Greens Prairie Road West generall y located east f the intersection of Greens Prairie Road West and FM 2154 in the City's E ra-territorial Juri sdiction. Case #07-00500254 (LB) 3 .4 Presentation, possible action, and discussion on a Final Plat for Duck Haven Phase V , consisting of 15 lots on 19. 96 acres located southwest of the intersection of Wellborn Road and Drake Drive in the City's ETJ (Extra-Territorial Jurisdiction). Case #07-00500245 3 .5 Presentation, possible action, and discussion ,n a Preliminary Plat for the Novosad Subdivision consisting of 1 lot on 0.5 West. Case #07-00500121 (LB) Commissioner Bauman motioned to appro seconded the motion, motion passed (6-0 • Regular Agenda 1. Consideration, discussion, and 'Rossible Agenda by Commission action. No items were pulled. 2. Commissioner 3. Public hearing, presentation, possible action, and discussion regarding a Comprehensive Plan Amendment to update the Thoroughfare Plan in the area generally bound by SH 30 on the north, William D. Fitch Parkway on the so uth, SH 6 on the west, and Carters Creek on the east. Case #07-00500263 (KF) Ken Fogle , Transportation Planner, presented the amendments to the Thoroughfare Plan and outlined the recommendations of the East Co llege Station Transportation Study, which included incorporating new street standards, developing a context-sensitive design process, adopting the thoroughfare plan, and adopting the East College Station trails plan. November 15 , 2007 P&Z Regular Meetin g Minutes Page 2 of 4 4. 5. The following citizens had concerns with the amendments: Sherry Elli son, 2705 Brookway Dr.; Jean Linhert, 3011 Dur go; Bill Rising , 2404-D Bandera Dr.; Britt Rice, 5014 Augusta ; and Aimee Allen, 311 Essex Green. Some concerns of the citizens were bike lanes and traffic issues. Commissioner Bauman motioned to approve the ternate South Thoroughfare Plan, the Alternate North Thoroughfare Plan, a d ike lanes on the backage roads south of Rock Prairie. Commissioner Strong se oded the motion, motion passed (6-0). Public hearing , presentation , po s sible action, and disc ~garding an ordinance amendment to Chapter 12 of the Code of Ordin ances ~ nified Development Ordinance Section 5.6 Northgate Districts relating to sidewal e ts. Case # 07-00500004 (CH) Commissioner Schroeder motioned to approve Unified Development Ordinance Secf"on 5.6.8. Com motion, motion passed (6-0). motioned to approve the amendment to the Unified Secl on 9.4. Commissioner Bauman seconded the motion, 6 . Public hearing p es ntation, possible action, and discussion regarding an ordinance amendment to ~J.lstpter 12 of the Code of Ordinances , Unified Development Ordinance , Section 7.4 Sign<. Case #07-500004 (LS) Lance Simms, Assistant Director, presented the amendment to the Unified Development Ordinance Section 7.4 (Signs) to add commercial banners and list the zoning districts where banners may be used . Commissioner Bauman motioned to approve the amendment to the Unified Development Ordinance Section 7.4. Commissioner Strong seconded the motion, motion passed (6-0). Novembe r 15, 2007 P&Z Re g ular Me etin g Minutes Page 3 of4 7. Discussion and possible action on future agenda items -A Planning and Zoning Member may inquire about a subject for which notice has not been given. A statement of specific factual information or the recitation of existing policy may be given. Any deliberation shall be limited to a proposal to place the subject on an agenda for a subsequent meeting. Chairman Nichols stated that a liaison was needed for the November 19th City Council meeting. Commissioner Sanford volunteered to attend the November 19th City Council meeting as liaison for the Planning & Zoning Commission. 8 . Adjourn. i. Commissioner Bauman motioned to adjour the meeting. ommissioner Sanford seconded the motion, motioned passed (6-0) Meeting adjourned at 8:37 p.m. Approved: John Nichols , Chairman Planning and Zoning Commission Attest: November 15 , 2007 P&Z Re g ular Meeting Minutes Page 4 of 4 Item ... ,~ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16 M URE & B RO\iVNE E N G INEERING/, VEYTNG, I N C. HB lll l 1008 Woodcreek Drive. Suite 103 •Coll ege Station. Texas 77845 (979) 693-3838 •Fa""<: (979) 693-2554 • Emai l: M cClureBrowne@Verizon .net Duck Haven Subdivision, Phase V E I 0 . . f p b bl c c I ngmeer s p1mon o ro a e onstruction ;st October 4. 2007 Description Unit I Quantity Estimated T Jn;t p..;~- Paving Construction I Preoare Work Area Lu111 if Sum 1 4,000 .00 Earthwork (includes Detention) J:,.Y. 2,691 6.50 1.5" HMAC (including prime coat) /S.Y . 2,852 7.50 6" Lime Stabilized Submide (6%) \ I S.Y. 3,926 3.75 6" Crushed Limestone Base v S.Y. 3,710 9.00 Paving Subtotal Dramage Construction 18" CMP, (Type L 16 gauge, galvanized steel), structural backfill L.F. 40 51.00 18" CMP, (Type L 16 ~uge, galvanized steel), non-structural backfill L.F . 55 34.00 Rock Rip-Rap Channel Lining (including geotextile fabric) S.Y. 60 70 .00 Safety End Treatment for 18" CMP EACH 6 800 .00 Drainage Subtotal Water line Construction 3" PVC CL 160, ASTM 02241 Water Pipe, non-structural backfill L.F . 966 16 .00 6"x3 " Reducer EACH 1 175.00 2" Blow Off Assembly EACH 1 700.00 Connect to Existing Water Line EACH 1 500.00 1.5" Poly (ASTM 03035) Water Services -Long (inludes 3" Casing) EACH 3 1,200 .00 1.5" Poly (ASTM 03035) Water Services -Short EACH 4 825 .00 l " Poly (ASTM 03035) Water Ser. -Short EACH 1 600 .00 Water Line Subtotal Erosaon Control Construction Erosion Control Plan & Sedimentation Control (per Item 106) (includes silt fencing, construction exits, straw bale barriers, inlet protection, grass seeding, L.S . 1 18,000 .00 and any other sedimentation control devices) Erosion Control Subtotal Total 4,000 .00 17,491.50 21 ,390 .00 14,722 .50 33,390.00 90,994.00 2,040 .00 1,870.00 4,200.00 4,800.00 12,910.00 15 ,456 .00 175 .00 700 .00 500.00 3,600.00 3,300 .00 600.00 24 ,331.00 18,000 .00 18 000 .00 TOTAL CONSTRUCTION COST $146,235.00 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 workloads and the degree to which inflation may affect project costs between now and the bid date . During construction, additional features may become aooarent as the work oro1UCsses. which will result in an increase in cost. JoftjtJ7 l"bat ,...,,,,,,,,,, ---;~OF r€ ''' ff '\~.-··*··""·· .... ::.cilS' ,,, ... ~ .· " .... ,, "*·· -.~I 1 * :' .... * ~ ~ ••••• : ................................ 'I. ~ JEFFERY L. ROBERTSON ~ ~ ................................. , ..... ~ ~-o :. 94745 .:f!~,, " .rt . • "41 ,, i, '{).". .... {..t; ~ 111 ~--.~(CENSY:-_~,.·"r-ff',E 1 •\~~s1a·NAL ~~~ ,,,,,,, ................. Item "'~ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16 URE & BROWNE ENGINEERING/ VEYTNG, I N C. HB 1ll ll 1008 Woodcreek Drive, Suite 103 •Coll ege Station, Texas 77845 (979) 693-3838 • Fa..x: (979) 69 3-2554 • Emai l: McClureBro.,.n e @ Verizon.net Duck Haven Subdivision, Phase V I Engineer's Opinion of Probable Construction Cost October 4, 2007 Description Unit ~ty Estimated TTn;t Pnr,. Pa-ring Construction / Preoare Work Area Lump Sum v 1 4,000 .00 Earthwork (includes Detention) c.:;.Y. / 2,691 6 .50 1.5 " HMAC (includimz mime coat) ~Y/ 2,852 7 .50 6" Lime Stabilized Subgrade (6 %) S:Y . 3,926 3.75 6" Crushed Limestone Base S.Y. 3,710 9.00 Paving Subtotal Dramage Construction 18 " CMP, (Tvoe L 16 gauge, galvanized steel), structural backfill L.F. 40 51.00 18" CMP, (Tvoe L 16 gauge, galvanized steel), non-structural backfill L.F . 55 34.00 Rock Rip-Rap Channel Lining (including geotextile fabric) S.Y. 60 70.00 Safetv End Treatment for 18" CMP EACH 6 800.00 Drainage Subtotal Water line Construction 3" PVC CL 160, ASTM D2241 Water Pioe, non-structural backfill L.F. 966 16.00 6"x3 " Reducer EACH 1 175 .00 2" Blow Off Assembly EACH 1 700.00 Connect to Existiniz Water Line EACH 1 500 .00 1.5" Poly (ASTM D3035) Water Services -Long (inludes 3" Casing) EACH 3 1,200 .00 1.5 " Poly (ASTM D3035) Water Services -Short EACH 4 825.00 l " Polv <ASTM D3035) Water Ser . -Short EACH 1 600 .00 Water Line Subtotal ErOSion Control Construction Erosion Control Plan & Sedimentation Control (per Item 106) (includes silt fencing, construction exits, straw bale barriers, inlet protection, grass seeding, L.S . 1 18,000 .00 and any other sedimentation control devices) Erosion Control Subtotal Total 4,000.00 17,491.50 21,390.00 14,722 .50 33,390 .00 90 ,994 .00 2,040.00 1,870.00 4,200 .00 4,800 .00 12,910 .00 15 ,456.00 175.00 700.00 500 .00 3,600 .00 3,300.00 600 .00 24,331.00 18,000.00 18 000 .00 TOTAL CONSTRUCTION COST $146,235.00 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 workloads and the degree to which inflation may affect project costs between now and the bid date . During construction, additional features may become apparent as the work oroizresses. which will result in an increase in cost. J DRAINAGE EASEMENT AGREEMENT DATE : May __d_Q_, 2008 GRANT OR: DUCK HAVEN , LTD ., a Texas limited partnership 3608 East 29th Street, Suite 100 GRANTEE : LIEN HOLDER: Bryan , Texas 77802 DUCK HAVEN HOMEOWNER'S ASSOCIATIO 3608 East 29th Street , Suite 100 Bryan , Texas 77802 FROST BANK 777 Main Street, Suite 500 Fort Worth , Texas 76102 EASEMENT PROPERTY: That certain tract of rea l property located in Brazos County , Texas , more particularly depicted in Exhibit "A" and described in Exhibit "B" attached hereto and made a part hereof. EASEMENT PURPOSE : The purpose of the easement is for use of the surface only of the Easement Property to construct, install, operate , maintain , inspect, repair , reconstruct , and rebuild an open drainage channel over and across the Easement Property for stormwater drainage and to cut , trim , and control the growth of vegetation on the Easement Property which might interfere with or threaten the operation and maintenance of the said drainage channe l. CONSIDERATION : Cash in hand paid , the further consideration of the easement grant and the mutual covenants and agreements contained in this Agreement , and other good and valuable consideration , the receipt and sufficiency of which is acknowledged and stipulated . DURATION OF EASEMENT : Th is easement shall remain in effect until such time that the tract of land which the Easement Property is a part is platted . The future plat shall include sufficient easements , at the current location or another, to provide for adequate stormwater drainage . Grantor reserves the right to relocate or alter the Easement Property to accommodate changes in future road design or development configuration . Once the future plat is filed of record , this easement shall be abandoned . AGREEMENT: Grantor, for the consideration above , grants , sells, and conveys to Grantee an easement over, upon , and across , the Easement Property for the Easement Purpose for the benefit of stormwater drainage , together with all and singular the rights and appurtenances thereto in any wise belonging , to have and hold it to Grantee , Grantee 's heirs , successors , or assigns for the Duration of Easement. Grantor binds Grantor and Grantor's heirs and successors to warrant and forever defend all and singular the easement to Grantee and Grantee 's heirs , successors , and assigns, against every person whomsoever lawfully claiming or to claim the same or any part thereof. ' MAINTENANCE OF EASEMENT: Grantor agrees to ma intain the Easement Property , for Duration of Easement , in a manner sufficient to allow for adequate stormwater drainage . Maintenance shall include repa ir, reconstruction , and/or control of the growth of vegetation within th Easement Property. DUCK HAVEN, LTD ., a Texas limited partnership By : Duck Haven Management, LLC Its General Partner By Baf!t~antc_; ~a,J\ Authorized Representative ST A TE OF TEXAS COUNTY OF BRAZOS § § § ACKNOWLEDGEMENT This instrument was acknowledged before me on the JD~ day of (Y?°l.t. , 2008 , by Paul J. Clarke , the Manager of Duck Haven Management , LLC ., a Texas limited lia ity company , the General Partner of DUCK HAVEN , LTD., a Texas limited partnership , on behalf of said limited partnersh ip. ,.,,,. LI NDA TRICE Notary Public STATE OF TEXAS ~ ~om rn. Exp . Oct. 30 , 2011 Notary Public in and for The State of Texas CONSENT AND SUBORDINATION BY LIENHOLDER Lienholder, as the holder of lien(s) on the fee simple title to the Easement Property , consents to the above grant of an easement , including the terms and conditions of such grant , and Lienholder subordinates its lien(s) to the rights and interests of the easem nt , such that a foreclosure of the lien(s) will not extinguish the rights and interests of the easement. ::.OST ~ Name : ~/?..V U{I LT~ -7 Title : C >< ~c.u n v'ti' ti. 1:J. STATE OF TEXAS § § § ACKNOWLEDGEMENT COUNTY OF BRAZOS ,..,,0 -t h This instrument was acknowledged before me on the o< - by Lq.,."'0 c ~-,\te ll'\ , the E vP .,,.r- of said banking institution . day of ;1~ q IJ\ , 206r, ;;>o o ~ Frost Bank , on behalf Exhibit A FIELD NOTE~ 75' WIDEPRIVATEDRAINAGEE SEMENT 0.3175 ACRES Being all that certain tract or parcel of land lying and being situated in the B. McGREGOR SURVEY, Abstract No . 170 in Brazos County, Texas and being a part of the called 188 .04 acre tract described in the deed from Thousand Oaks Development Co., Joint Venture to Duck Haven , Ltd . as recorded in Volume 4011 , Page 142 of the Official Records of Brazos County, Texas (O.R.B.C .) and being more particularly described by metes and bounds as follows : COMMENCING: at a found 1/2-inch iron rod marking the west corner of the called 188.04 acre tract, said iron rod also marking an interior ell corner in the east line of the called 286.1965 acre John Malley and Jennifer Todd tract described in Volume 7427 , Page 198 (O.R.B.C.), from whence a found 1/2-inch iron rod marking the west comer of DUCK HAVEN SUBDIVISION, PHAS E THREE as recorded in Volume 7819, Page 166 (O.R.B.C.) bears S 44 ° 57' 07" Eat a distance of 1111.47 feet for reference ; THENCE: N 44° 01' 35" E along th e northwest line of the said 188 .04 acre tract for a distance of 732 .79 feet to the POINT OF BEGINNING , said point of beginning also being the north comer of a proposed Lot 7, Block 6 DUCK HA VEN SUBDIVISION, PHASE FIVE; THENCE: N 44 ° 01' 35" E continuing along said northwest line for a distance of 181.89 feet for comer; THENCE : into the interior of the called 188.04 acre tract for the following three (3) calls : 1) S 52° 20' 55" E for a distance of75.4 7 feet for corner, 2) S 44° 01 ' 35" W for a distance of 186.96 feet for corner and 3) N 48 ° 30' 07" W for a distance of 75.07 feet to the POINT OF BEGINNING and containing 0.3175 acres (13,832 sq. ft.) ofland, more or less . I, Kevin R. McClure , Registered Professional Land Surveyor No . 5650, State of Texas, do hereby certi fy that this survey substantially complies with the current Texas Society of Profess ional Surveyors Standards and Specifications for a Category IB , Condition III Survey . MAY -20 -2008 TU E 03:24 PM 1 LLBORN SUD FAX No . 9 690 1260 p, 00 1 DvcK HA\IE/\J -fl1AS£ , ... .......... ~"'?'''~'"r·,,,.,,,....., ·-~ ,.......,.,-rn ·c~' .. ~ .. ---· ·-:~·,,,.~,. ...... ·-...... ~ .. ·-· -o;-·· • ....,..; · WATER BACTERIOLOGY ... '-.:: .. -J ~. i4 0) .. ..., .. , ~ ) ·A Brazos County Health Department '· 201 North.Texas Avenue• _Bryan , Texas 77803-t..(979) 361-4440 ..... , .• - Date!fii:ne Collected : 5"q.A:>g 10:0:) []Y"""'O .. . . i · M nrh pay Ytm 'lime of Day llfTI pm Sample Site: lt:¥.-1 ~ . . -~ -\. 4 ress Of OthtJf d9scnption (not san;ip/111 $He t?tJfflbef) i. .~ampler Name/Phone: h ·;, )/.Yci:r< :i.. 1e--:z;u.,: I -~~:;:: . . I · I SYSTEM TYPI: ~blic D Prlvate/lndlvldual Oother __ _ SAMPLE TYPE •.. • (Pub li c Systems Only) D Distribution a· Raw : well#_·_~ D .construction · Speciaf_~-- 0 .Repeatforsample # v· · gTitier..A/-:w.Cd?.11 s+ O· .<:ffan ' . .· ,;·~·~·:'· ~--:-~TE SOURCE round..1it~l • '· {Well )""·· .D Surface water (Lake, River) , t f W ,,.. .• oiSINFECTANT RESIDUAL (Mandatory) ~ mg/L ~a Chl~rine '·· . Pu.biic distribution samples mu~! have a· disinfe;tant Residu ~.' 0 Chlor').rril ne (Total C~lorine) · \ . Numb~r of 5amples c,p.lleo\_ed on )his date . · .:' ~( . -.~' ;·-.« .. --LAB ' RAT~·RY REPOR·r-(oo Not writ~-B~.,~:.,; ... ~ ·.-. ~ ' ..... \ .. >-.·-~ ... l : Please Indicate. Test Method Used : Colllert ·Presence/Absence · I· " · · ..... ,~·.COLIFORM ORGANISMS : i · ~··· ... TOTAL COLI FORM .. ·I • : . D Found .. [;?NOT Found 1 . FECAL COLIFOFW/Escherich/a cJfi\ . · .0 Found ~OT Found REP£ATS (required for distribution samples only) unsuitable for ane.lysls (see below) Analyst lnitial5: ...... l ,l.l " v '· .. . ,:t .• ~'SAMPLE UNSUITABLE FOR ANALJflJS ('fhl!111n!luh11llte11mp1~ must 1>e rep111~ctw1t111n 24flr!I) ~0"Sampl & too old . Not ~lved within so hour a or coll ec11cin D Heavy SllJ'/BACTERIAfl'URB IOITY PRESENT (circle). l D Cro~nti\y ill:$ut1iten1 t0r ~n•l%is (100 ml. requ~ 0 Sample leaked In triillsit 0 Form Incomplete I date disc repancy (CIRCLE arrora) , 0 Chlonne residual · 0 Other reason; (DESCRIBE ) .. ····:·• "· · .. .,.., \ \ > I l ease: =-=-=----=-=-=--=-===========!I!=~~~~~~~~~~~~~~· DEVELOPMENT REVIEW DUCK HAVEN PH 5 07-245 FINAL ~ PLAT ~ DEVELOPMENT REVIEW DUCK HAVEN PH 5 07-245 286.1965 Acres John /Jo/l.y 6 JM,,,Y•r Todd Vol. 7427. Pg. 198 75' Wide Pdvate Drainage Easement 0.3175 Acres {13,832 sq. ft.) L1 R~malnd"r of Duck HOVftn Ltd. Collttd 188.04 Ac. I-bl 4011, Pg. 142 (Nol Ploll•d) LINE L1 L2 L3 L4 J. Stuteville, A-216 8. McGregor Su~y. A-170 / '°''°' 1"=HXJ'~ LINE TABLE BEAR INC N 44·01 •35• E S 5T20'55" E s 44·01•35• w N 48"30'07" W DISTANCE 181.89' 75.47' 186.96' 75.07' LEGEND 0 -1 /2" Iron Rod found P.U .E. -Public Utility Easement Pr.O .E. -Private Drainage Ed:sement BASts Of Bf.ARINGS ls the monumented nourthwest line of the Ouck Hoven ltd. called 188.04-acre trc:1ct recorded in Volume 4011 , Page 142, with o record bearing of N 44' 01 ' 35• E. 1os20024-002-01 .dw 9 Exhibit B McCLURE & BROWNE ENG/NEER/NG/SURVE'7NG; /NC• '008 Woodcreek Dr/ve, Su/te '0.1 • Co//ege Stat/on, Texas 77845 • (97!J} 611.1-.18.18 CLARKE +WYNDHAM REA L E T TE l VE TMENT ERVl CE TRAVIS MARTINEK DESIGN AND CONSTRUCTION MANAGER OFF! E: (979) 846-4384 C L : (979) 229·9Bn FAX : (979) 846·146 1 3608 E ST 29TH STREET, ITE 100, COLLEGE STAT lON, TEXAS ns02 TO : DATE : Jennifer Prochazka 10/17/2007 COMPANY: TOTAL NO . OF PAGES INCLUDING COVER : CS Planning & Dev Servivces See Below FAX NUMBER: PHONE NUMBER: RE : Duck Haven -Phase 5 Final Plat 0 URGENT 0 FOR REVIEW 0 PLEASE COMMENT 0 PLEASE REPLY 0 PLEASE RECYCLE NOTES/COMMENTS : Jennifer, Attached are the following : R~-z­~:·:.~:::::~;:::::d Final Plat JnL-s • • 16-11 "x17" copies of the revised Final Plat ) I /I 1 -24 "x36" copy of the approved Preliminary Plat • • This should satisfy the requirements to place this item on the next available P&Z Meeting Agenda . Let me know if you have any questions or need additional information . Thanks , Travis CLARKE & WYNDHAM REAL EST ATE INVESTMENT SERVICES TRAVIS MARTINEK Vice President 3608 I ·:as t 29 th Street, Suite 100 Bryan , Texas 77802 Office: (979) 846-4384 Fax: (979) 846-1461 Cell : TRANSMITTAL S HEET TO : DATE : Deborah Grace-Rosier 5/20/2008 COMPANY: TOTAL NO. OF PAGES INCLUDING COVER : CS Ping/Dev Services See Below FAX NUMBER : PHONE NUMBER : RE : Duck Haven -Phase 5 Final Plat 0 URGENT 0 FOR REVIEW 0 PLEASE COMMENT 0 PLEASE REPLY 0 PLEASE RECYCLE NOTES/COMMENTS : Deborah , Attached is the Final Plat for Duck Haven Phase 5 . Please have the plat filed of record at your earliest convenience. I've also included a copy of the water test provided by Wellborn Water as acceptance of the water line construction. We have also filed of record the attached drainage easement as a requirement of the plat. Let me know when you have filed the plat. We would also like a digital scan of the plat with the filing information. Thanks , Trav is I I I I I HB 1111 DRAINAGE REPORT FOR DUCK HAVEN SUBDIVISION, PHASE FIVE COLLEGE STATION, TEXAS OCTOBER 2007 M BES I # 1062-0024 SU B M IITED BY: McCLURE & BROWNE ENGINEERING/SURVEYING, INC. 1008 Woodcreek Drive , Suite 103 •College Station , Texas 77845 (979) 693-3838 • Fax: (979) 693-2554 •Emai l: McClureBrowne @Verizon .net I I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY The Cities of Bryan and College Station both require storm drainage design to follow these Unified 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 "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 applicable . In addition to the requirements for the Executive Summary, this Appendix i ncludes several pages detailing 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 digitized . 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 required 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 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 should also be included . STORMWATER DESIGN GUIDELINES Effective February 2007 Page 1 of 26 APPENDIX . D : TECH. DESIGN SUMMARY As Revised ___ _ I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY 2. Identification of the size and general nature of the proposed project , including any proposed project phases . This paragraph should also include reference to 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 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 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 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 Page 2 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ I I I 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/Surveyeing, Inc . City : 0 Bryan 1008 Woodcreek Drive, Suite I 03 0 College Station College Station, Texas 77845 Date of Submittal : October 8, 2007 Lead Engineer's Name and Contact lnfo.(phone, e-mail , fax): Other: Dane Fuller, E.I.T., ph: (979) 693-3838, danef@McC lureBrowne.com , fax: 693-2554 Supporting Engineering I Consulting Firm(s): Other contacts : Jeff Robertson, P .E., ph: (979) 693-3838 , jeffr@McClureBrowne.com, fax: 693-2554 Developer I Owner I Applicant Information Developer I Applicant Name and Address : Phone and e-mail : Smiling Mallard Develo pment, Ltd. (979) 846-4384 3608 East 29th Street tmartinek@clarkewyndham .com Byran, Texas 77802 Property Owner(s) if not Developer I Applicant (&address): Phone and e-mail : ··-. Project Identification ... . ... Development Name: Duck Haven Subdivision Phase Five Is subject property a site project, a single-phase subdivision , or part of a multi-phase subdivision? Multi-phase Subdivis ion If multi-phase, subject property is phase 5 of 9 Legal description of subject property (phase) or Project Area: (see Section II, Paragraph B-3a) B.M. McGREGOR SURVEY, Abstract No . 170 in Brazos County, Texas Millican Royalty and Land Trust to Duck Haven, Ltd. as recorded in Volume 7538 , Page 15 (O .R .B .C.) If subject property (phase) is second or later phase of a project, describe general status of all earl ier phases. For most recent earlier phase Include submittal and review dates. Phases I, II, and ill have been submitted and approved . Phase ill was submitted in October of 2006 . General Location of Project Area, or subject property (phase): Approximately 21 ,8 00 ft. South East of College Station City Limit Line on Wellborn Road. In City Limits? Extraterritorial Jurisdiction (acreage): Bryan : acres. Bryan : College Station : 22.137 Ac. College Station : acres . Acreage Outside ET J : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 3 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ 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 : Retriever Run Previous and future phases of Duck Haven and undeveloped land to the West. Named Regulatory Watercourse(s) & Watershed(s): Tributary Basin(s): Boggy 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: Existing or Proposed? Existing Case Code : Case Date Status : Zoning Type : Existing or Proposed? Existing Case Code : Case Date Status : . Stormwater Man~gement Planning For Project or Subject Property (or Phase) Planning Conference(s) & Date(s): Participants: Preliminary Report Required? NI A Submittal Date Review Date Review Comments Addressed? Yes L I No I _j In Writing? No 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 GUIDELINES Effective February 2007 Page 4 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Rev ised ___ _ 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 (inclu de contacts & dates): Non-jurisdiction City Needed? Yes Cl No !Zl Coordination with Summarize need(s) & actions taken (include contacts & dates): Brazos County Project is in the College Station ETJ, and will be approved by Brazos County. Needed? Yes D.No .D Coordination with Summarize need(s) & actions taken (include contacts & dates): TxDOT Neede d? Yes .D_ No L~J Coordination with Summarize need(s) & actions taken (incl ude contacts & dates): TAMUS Needed? Yes O No .D. 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 NIA No ..1:21_ Yes L I US Environmental Protection Agency No 0 Yes D NIA Texas Commission on Environmental Quality No J2l Yes r:::J NIA Brazos River Authority No _.D._ Yes I . ,j NIA STORMWATER DESIGN GUIDELINES Effective Fe bru ary 2007 Page 5 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQertv Characteristics I Start (Page 3 .1) Nature and Scope of Proposed Work Existing: Land proposed for development currently used, including extent of impervious cover? Undeveloped woods and grass combination. Site c::J Redevelopment of one platted lot, or two or more adjoining platted lots. Development I ... . . I Building on a single platted lot of undeveloped land . Project I .I Building on two or more platted adjoining lots of undeveloped land. (select all L . J 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). I j Other (explain): Subdivision I .... J Construction of streets and utilities to serve one or more platted lots . Development I 'J 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 , linear feet of streets and Nature and drainage easements or ROW. Size of 15 Lots ProE!osed 892 LF of street Project Is any work planned on land that is not platted If yes , explain: or on land for which platting is not pending? Final Plat has been submitted simultaneously with L. Jj No l.<J Yes construction documents . .. FEMA Floodplains Is any part of subject property abutting a Named Regulatory Watercourse I No I -:J Yes L .. i (Section II, Paragraph B 1) or a tributary thereof? Is any part of subject property in floodplain I No Cl Yes L .. ii Rate Map area of a FEMA-regulated watercourse? Encroachment( s) Encroachment purpose(s): I I Building site(s) I I Road crossing(s) into Floodplain areas planned? L . II Utility crossing(s) L JI Other (explain): No 1Z1 Yes L I 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 Effective February 2007 Page 6 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ertv Characteristics I 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 . 121 Part of the detention analy sis was performed under the drainage study for Phase III of Duck Haven. The r emainder has been analysed in this report. Is the stormwater management plan for the property in substantial conformance with the earlier study? Yes D:J No 0 If not, explain how it differs. No If subject property is not part of multi-phase project, describe stormwater management r:L 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 describe how plan for subject property will comply therewith . - Do existing topographic features on subject property store or detain runoff? JZl No _c:::j_ Yes Describe them (include approximate size, volume , outfall , model, etc). Any known drainage or flooding problems in areas near subject property? J:'ZJ._ No ....c:;;:J_ Yes Identify: Based on location of study property in a watershed , is Type 1 Detention (flood control) needed? (see Table B-1 in Appendix B) L ."'...J Detention is required . l __ I Need must be evaluated . I -j Detention not requ ired . What decision has been reached? By whom? If the need for 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 Rev ised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQertv Characteristics I Continued (Page 3.3) Hydrologic Attributes of Subject Property (or Phase) (continued) Does subject property straddle a Watershed or Basin divide? m No D Yes If yes, describe splits below. In Part 4 describe design concept for handlinQ this-. -- Watershed or Basin Laraer acreaae Lesser acreage Above-Project Areas(Section 11, Paragraph 83-a) Does Project Area (project or phase) receive runoff from upland areas? tJJ No W Yes Size(s) of area(s) in acres : 1) 2) 3) 4) Flow Characteristics (each instance) (overland sheet, shall ow concentrated, recognizable concentrated section(s}, small creek (non-regulatory), regu latory Watercourse or tributary); Flo w determination : Outline hydrologic methods and assumptions : Does storm runoff drain from public easements or ROW onto or across subject property? I ,.._j No I .. I Yes If yes , describe facilities in easement or ROW: Are chanQes in runoff characteristics subject to chanQe in future? Explain Conveyance Pathways (Section II, Paragraph C2) Must runoff from ~tudy p~opertf drat across lo,:r r operties before reaching a Regulatory Watercourse or tributary. __ . No _ _ Yes Describe length and characteristics of each conveyance pathway(s). Include ownership of property(ies). In the existing characteristics of the site all water sheet flows across the adjacent property owned by John A. Malley & Jennefer B. Todd Vol. 7427, Pg. 198. After development most of the water will be carried to a tributary of Boggy Creek through culverts, ditches, and a detention pond. The rest of the flow will continue to sheet flow across the adjacent property. The proposed conditions will sheet flow Jess water than was originally flowing across the property and the overall peak flow from the site will be Je ss. STORMWATER DESIGN GUI DELINES Effective Fe brua ry 2007 Page 8 of 26 APPENDIX . D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Property 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? I . .~ plat, or easements L ~ i instrument. If instrument(s), describe their provisions . exist for any part of pathway(s)? LLJ No L I Yes Pathway Areas Nearby Where runoff must cross lower properties, describe characteristics of abutting lower property(ies). (Existing watercourses? Easement or Consent aquired?) The lower property consists of undeveloped land and will sheet flow in the same manor as it existing conditions to a tributary of Boggy Creek. Describe any built or improved drainage facilities existing near the property (culverts, bridges, lined channels, buried conduit, swales, detention ponds, etc). Drainage 1---------------------------------1 Facilities Do ~ny of these have rydryiogic or hydraulic in~uence on proposed stormwater design? I ..... J No ~Yes If yes, explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 9 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t 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? I A No I•~ Yes Separate Instrument? ml No CJ Yes Per Guidelines reference above , how will D Establishing Easements (Scenario 1) runoff be discharged to neighboring property(ies )? I-' I Pre-development Release (Scenario 2) r::::l 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# B -2 ) In the existing characteristics of the site all water sheet flows across the adjacent property owned by John A. Malley & Jennefer B . Todd Vol. 7427, Pg. 198 . After development most of the water will be carried to a tributary of Boggy Creek through culverts, ditches, and a detention pond. The rest of the flow will continue to sheet flow across the adjacent property. The proposed conditions will sheet flow less water than was originally flowing across the property and the overall peak flow from the site will be less. 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 prypo j ed design been coordinated with owner(s) of receiving property(ies)? CTJ No __ ,_ Yes Explain and provide documentation. STORMWATER DESIGN GUIDELINES Effective February 2007 Page 10 of 26 APPENDIX . D : TECH. DESIGN SUMMARY As Revised ___ _ 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 Will project result in shifting runoff between Basins or Identify gaining Basins or Watersheds and acres shifting : between 1-W-h_a_t -de-s-ig_n_a_n_d_m-iti-ga-t-io_n_i_s _u_se_d_t_o_c_o_m_p_e_n_sa_t_e-fo-r-in-c-re_a_s_e_d_r-un_o_ff_---1 Watersheds? from gaining basin or watershed? I LJ No I _j Yes How will runoff from Project 1. I .... _j With facility(ies) involving other development projects . Area be mitigated to pre-2. ( __ J Establishing features to serve overall Project Area . development conditions? Select any or all of 1, 2, 3. L "-~ On phase (or site) project basis within Project Area . and/or 3, and explain below . 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 CD en C CD ~ >- ~ D c C> 'iii CD 0 Oz fol Are aquatic echosystems proposed? fJ .:I No L . I Yes In which phase(s) or project(s)? Are other Best Management Practices for reducing stormwater pollutants proposed? Cl No Lt.J Yes Summarize type of BMP and extent of use : A detention pond with initial erosion control. If design of any runoff-handling facilities deviate from prov isions of B-CS Technical Specifications , check type facility(ies) and explain in later questions . D Detention elements D Conduit elements D Channel features D Swales I I Ditches i 11 Inlets I 11 Valley gutters D Outfalls D Culvert features I i Bridges Other STORMWATER DESIGN GUIDELINES Effective February 2007 Page 11 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ 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)? I . I No I " 11 Yes Identify type and general size and In which phase(s). (1) 18" CMP under Retriever Run and (2) 18" CMPs as outlet structure of detention pond. 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): Detention will reduce overall peak flows of this phase and part of a future phas e to lower than existing conditions. Within Or Serving Subject Property (Phase, or Site) If property part of larger Project Area , is d j5igl in substantial conformance with earlier analysis and report for larger area? L!J Yes --·--..1 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 CD r.n ~ CD (/) >-i Bj ~ 0 'iii z 101 -< Typical shape? V-notch 2' depth I Surfaces? Grass-lined Steepest side slopes: Usual front slopes: Usual back slopes: 4:1 4:1 4 :1 Flow line slopes : least 0.5 0% typical 2.00% greatest 3.50% Typical distance from travelway: (Attached Exhibit# Sht 3 ) 11 ft . Are longitudinal culvert ends in compliance with 8-CS Standard Specifications? m Yes D No, then explain : At intersections or otherwise , do valley gutters cross arterial or collector streets? CJ No I . . i Yes If yes explain : Are valley gutters proposed to cross any street away from an intersection? I . 1 No I ,j Yes Explain : (number of locations?) STORMWATER DESIGN GUIDELINES Effective February 2007 Page 12 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised ---- SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t 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 Usual Greatest Are inlets recessed on arterial and collector streets? D Yes D No If "no ", identify where and why. bvmbv Will inlets capture 10-year djsiXf stormflow to prevent flooding of intersections (arterial with arterial or collector)? ~ Yes L -JI No If no, explain where and why not. C'-· "C Q) I/) Will inlet size and placement prevent exceetnQ~ allowable water spread for 10-year :J ..... design storm throughout site (or phase)? __:.=:;:___Yes L _ i No If no , explain . Q) ~ C) "C -c: "C Sag curves : Are inlets placed at low points? I . -A Yes I . A No Are inlets and co Q) ..c ~ ..... ·-conduit sized t::fevent 100-year stormflow from ponding at greater than 24 inches? :J ...... (.) c: 0 l __ JI Yes __;;::::;:;:_No Explain "no" answers. .r:. (.) :::: _.. ~ I/) Q) Q) ..... ...... I/) Q) Will 100-yr stormflow be contained in combination of ROW and buried conduit on ..... <( whole length of all streets? I. _j Yes l i No If no , describe where and why. Do designs for curb, gutter, and inlets comply with B-CS Technical Specifications? CJ Yes L .. -.. 4 No If not, describe difference(s) and attach justification. Are any 12-inch laterals used? 1_ _ _1 No 1__1 Yes Identify length(s) and where used. C'-· "C Pipe runs between system I Typical Q) Ill Longest I/) Q) access points (feet): :J >- !DI Are junction boxes used at each bend? CJ Yes DI No If not, explain where and why . en c: ·-0 ~z iBI Are downstream soffits at or below upstream soffits? Least amount that hydraulic en Yes I I No I i If not, explain where and why: grade line is below gutter line Ill -(system-wide): STORMWATER DESIGN GUIDELINES Effective February 2007 Page 13 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Cont inued (Page 4 .5) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase , or Site) (continued) Ii) Describe watercourse(s), or system(s) receiving system discharge(s) below (I) (include design d ischarge ve locity , and angle between converg ing flow lin es). (.) c: 1) Watercourse (or system ), velocity , and angle? co u; -~ (I) ._ -o -g E 2) Watercourse (or system), velocity , and angle? ::I ._ c: 0 ·---c: . 0 .2 (.) c: -·-~ E <V <VE 3) Watercourse (or system), velocity, and angle? -co ]1 (/) (/) ..... ~(I) ::I c: :'Q 0 ·-> ~ e "O a. E ..... For each outfall above , what measures are taken to prevent eros ion or scour of ._ (I) 0 (I) receiv in g and all fac ilities at juncture? -.i= Cf) (/) (I) 1) ..... co ._ co a. 2) (I) (/) c: 3) ~ Are swale(s) situated along property lines between prope rti es? L .. J No I •J Yes Number of instances : I For each instance answe r t he follow ing quest ions . Surface treatments (inc ludinQ low-flow flumes if any): Grass-line d -Hydro mulch C'-· (/) a; ~ (/) -(I) Flow line slopes (minimum and maximum): (/) >- !Bl 0.75% -g 0 cnz Outfall characteristics for each (velocity, convergent angle , & end treatment). ::I ial Velocity= 3.08 fps, Enters directl y into detention pond. (/) (I) ._ W ill 100-year design storm runoff be contained within easement(s) or platted drainage <( ROW in all instances? i.1.J Yes L .. I No If "no " explain : STOR MWATER DESIGN GU IDELINES Effecti ve February 2007 Page 14 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceRt and Design Parameters I Continued (Page 4 .6) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) (/) Are roadside ditches used? I ,1 No I ' l Yes If so , provide the following : Q) Is 25-year flow contained with 6 inches of freeboard throughout? I '.I Yes I -'' No ..r::. .B Are top of banks separated from road shoulders 2 feet or more? I '-A Yes t_ __ j No i5 Are all ditch sections trapezoidal and at least 1.5 feet deep? L .H·I Yes L.-: ij No Q) "C For any "no" answers provide location(s) and explain : "iii "C ro Ditches are county standard V-notch at least 2 ft deep . 0 0:::: If conduit is beneath a swale , provide the following information (each instance). Instance 1 Describe general location, approximate length : (/) Q) >- D I~ Is 100-year design flow contained in conduit/swale combination? I ) Yes I I No If "no" explain: c: o ro ROW c::::J Easement [=:J z ii) Space for 100-year storm flow? Width 8 1~ Swale Surface type , minimum Conduit Type and size, minimum and maximum ~ and maximum slopes : slopes, design storm : C'-· "C !!l. "C Q) ro c: >. Inlets Describe how conduit is loaded (from streets/storm drains, inlets by type): c: ro c: ..r::. ro (.) .... c: .E Q) c: c. 0 0 :;::; Access Describe how maintenance access is provided (to swale, into conduit): ...._ ro 0 E :J .... .!!:! .E c: c: Q) "C E Instance 2 Describe general location, approximate length : Q) ro (/) (/) :J (/) Q) c: "C 0 ·:;: Is 100-year design flow contained in conduit/swale combination? I. ... l Yes I .. a No ~ 0 .... If "no " explain : c: c. :.0 -Q) E Q) ROW c:::J Easement c::J 0 ..r::. Space for 100-year storm flow? Width (.) (/) -Q) Swale Surface type, minimum Conduit Type and size , minimum and maximum :J -ro "C .... and maximum slopes : slopes, design storm : c: ro 0 c. (.) Q) --(/) Q) Inlets Describe how conduit is loaded (from streets/storm drains, inlets by type): ro c: ~ E- (/) Q) .... <{ Access Describe how maintenance access is provided (to swale, into conduit): STORMWATER DESIGN GUIDELINES Effective February 2007 Page 15 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ I I I I 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) .!:: ro a. If "yes" provide the following information for each instance : Instance 1 Describe general location, approximate length , surfa~ing : E x 0 UJ .!;: 15 ui Is 100-year design flow contained in swale? i __ I Yes I .. ! No Is swale wholly c: ~ within drainage ROW? 1 .... J Yes L _J No Explain "no" answers: .;01 !----------------~ Access Describe how maintenance access is provide : .... 0 j 81 1----ln-s-ta_n_c_e_2--D-e-sc-r-ib_e_g_e_n_e-ra_l_lo_c_a-ti-o-n,-a-p-p-ro-x-im-a-te_l_e-ng_t_h_, -su_rf_a_c-in_g_:--------i Q) ·;:: C"-· :J en ..c c :; Q) o E £ Q) "§ ~ en ~ ~ 0 ro :S: ~o 5 c::: > .~ C"-- :0 :J a. -0 c: ~ ro g_ a. 0 x .... UJ a. en en -Q) 101 a. .§ ~ ~B-;I c: ... ro ' ..c: ' () Is 100-year design flow contained in swale? f J Yes D No Is swale wholly within drainage ROW? L i Yes I . J No Explain "no" answers: Access Describe how maintenance access is provided : 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 (deepened, widened, or straightened) or otherwise altered? I. .. A No L .J Yes If only slightly shaped, see "Swales" in this Part. If creating side banks, provide information below. W ill design replicate natural channel? LJ Yes L _ij 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 February 2007 Page 16 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ I I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt 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? c::J No I . -I Yes If "yes" provide the information below. Will small creeks and their floodplains remain undisturbed? CJ Yes I .I 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 . --0 <ll ::::i c: ~ Watercourses (and tributaries}: Aside from fringe changes, are Regulatory 0 Watercourses proposed to be altered? D No I I Yes Explain below. ~ (/) c: Submit full report describing proposed changes to Regulatory Watercourses. Address <ll existing and proposed section size and shape , surfaces, alignment, flow line changes , E <ll length affected, and capacity, and provide full documentation of analysis procedures > 0 and data. Is full report submitted? L __ J Yes L mJ No If "no " explain: .... a. E -a; c: c: Cll All Proposed Channel Work: For all proposed channel work, provide information .i::::. () 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? '-_ij Yes I. . 9 No If not, identify location and explain: Are ROW I easements sized to contain channel and required maintenance space? I i Yes D No If not, identify location(s) and explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 17 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ I I I I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt and Design Parameters I Continued (Page 4.9) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) How many facilities for subject property project? 1 For each provide info . below. For each dry-type facilitiy : Facility 1 Facility 2 Acres served & design volume + 10% 13.3 4 8 Ac . 19 ,976 cf 100-yr volume : free flow & plugged 8.566 af 8.5 66 af Design discharge (10 yr & 25 yr) 44 .33 cfs 56 .21 Spillway crest at 100-yr WSE? l u_ ! yes I ' I no L i i yes I u .. J no Berms 6 inches above plugged WSE? t ... ! yes JJ J no D yes I J no Explain any "no" answers: Spillway will be used for lower storms as w ell as the emergency overflow spillway. The pond is quite r/) small and the spillway will allow more than the 100 year storm to be released without damaging the pond Q) >- Bl For each facility what is 25-yr design Q, and design of outlet structure? 0 Facility 1: 56 .21 cfs (two 18" CMPs and a wier structure . z DI Facility 2 : Do outlets and spillways discharge into a public facility in easement or ROW? C'-· Facility 1: r::l. Yes !ZJ.No Facility 2: Q Yes ..c:J No "O Q) If "no" explain : r/) 0 It discharges into an existing tributary of Boggy Creek. c. 0 ..... Cl.. r/) For each, what is velocity of 25-yr design discharge at outlet? & at s12illwa:t? ~ ·c::; Facility 1: 5.94 fps & 3.63 fps Facility 2: & C13 Are energy dissipation measures used? _D_No [ZJ Yes Describe type and u.. c location : D" ti d . . d d . . th .Q irec y ownstream nprap is u se to iss1pate e energy. c: Q) ...... Q) 0 Q) ..... <( For each, is spillway surface treatment other than concrete? Yes or no , and describe: Facility 1: Grass-lined Facility 2 : For each, what measures are taken to prevent erosion or scour at receiving facility? Facility 1: Rip-Rap channel linings Facility 2: If berms are used give heights , slopes and surface treatments of sides. Facility 1: 4 ft w ith 4 : 1 slopes that are grass -lined . Facility 2: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 18 of26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised ---- I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt 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-CS Specifications? Yes or no , and explain if "no ": (/) Facility 1; yes Q) :e ~~ CJ Q) ro =i Facility 2 : u.. c: c: :.;::; 0 c: :;::; 0 c: CJ Q) ....... Q) For additional facilities provide all same information on a separate sheet. 0 Are parking areas to be used for detention? ...cz:J.. No L . J Yes What is maximum depth due to required design storm? Roadside Ditches: Will culverts serve access driveways at roadside ditches? L._.I No 1 ........ 1 Yes If "yes", provide information in next two boxes . Will 25-yr. flow pass without flowing over driveway in all cases? J::j_ Yes .W. No Without causing flowing or standing water on public roadway? _[:=J_ Yes .D_No Designs & materials comply with B-CS Technical Specifications? .....c:L Yes l:J No Explain any "no " answers: C'-· (/) Cl c: ·u; Are culverts parallel to public roadway alignment? I . ,j Yes ..c:L No Explain : (/) 0 L.. (/) CJ Q) Q) ..... >- l DI Creeks at Private Drives: Do private driveways, drives, or streets cross drainage ..... wiys rat serve Above-Project areas or are in public easements/ ROW? ro "O 0 _ ... _ .. _ .. No I . I Yes If "yes" provide information below. Q) z ~8 1 How many instances? Describe location and provide information below. Q) Location 1: ~ =i CJ Q) Location 2 : L.. <{ 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? For more instances describe location and same information on separate sheet. STORMWATER DESIGN GUIDELINES Effective February 2007 Page 19 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .11) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Named Regulatort Watercourses {&Tributaries}: Are culverts proposed on these facilities? I L A No ..Cl.._ Yes , then provide full report documenting assumptions, criteria, analysis, computer programs, and sjudy lfindings that support proposed design(s). Is report provided? J:J.... Yes __ : No If "no", explain : -Arterial or Major Collector Streets: Will culverts serve these types of roadways? Q) Q) I ZJ No I . J Yes How many instances? For each identify the ..c: r/) . Q) location and provide the information below . ..... rJ> ro Instance 1: Q) ...... >-:g__ a ~ Instance 2: Instance 3: c:: .Q Yes or No for the 100-year design flow: 1 2 3 o -ro ZE D I~ Headwater WSE 1 foot below lowest curb top? Spread of headwater within ROW or easement? E "" ro Is velocity limited per conditions (Table C-11 )? r/) r/) g> "'C Explain any "no" answer(s): ·-c:: ~ ro 0 c:: ...... 0 () :;::; >. ro ro u :: .Q "'C Q) ro .o Q ._ ............ Minor Collector or Local Streets: Will culverts serve these types of streets? () () LJ No l2J.. Yes How many instances? 1 for each identify the ·-r/) -Q) .g "'C location and provide the information below: a. Q) ..... a. Instance 1: Sta. 1 +89.47 of Retriever Run C'O .?;- "'C >. Instance 2: Q) c:: r/) C'O :::J ..... Instance 3: r/) 0 t:'. r/) Q) Q) ..2: () For each instance enter value, or "yes" I "no" for: 1 2 3 :::J c:: u ro Design yr. headwater WSE 1 ft . below curb top? No Q) iii Yes No ...... c:: <( ·-100-yr. max. depth at street crown 2 feet or less? Yes No No Q) ...... 0 Product of velocity (fps) & depth at crown (ft)= ? Yes No No E ...... g Is velocity limited per conditions (Table C-11 )? Yes No No Lim it of down stream analysis (feet)? Yes No N o Explain any "no " answers : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 20 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ 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? I J -l Yes I --~ No If not , identify location(s) and intersect angle(s), and justify the design(s): Does drainage way alignment chrgr within or near limits of culvert and surfaced approaches thereto? r:z1 No -Yes If "yes" identify location(s), describe change(s), and justification : Are flumes or conduit to discharge into culvert barrel(s)? ..rzJL No Q 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) I J 11 No I . ~ Yes If "yes " identify locat ion(s), describe outfall design treatment(s): ::J c: :;::; c: 0 ~ (f) t Q) ~ ::J Is scour/eros ion protection provided to ensure long term stability of culvert structural (.) components , and surfacing at culvert ends? I J I Yes D. 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? I :Zj Yes L __ j 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? I /J No _Cl_ Yes If "yes" describe location(s) and mitigation measures: Are all culvert designs and materials in compliance with B-CS Tech . Specifications? j2J_Yes Q No If not, explain in Special Design Section of this Part. STORMWATER DESIGN Gl,JIDELINES Effective February 2007 Page 21 of 26 APPENDIX . D: TECH . DESIGN SUMMARY As Revised ___ _ I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt and Design Parameters I Continued (Page 4.13) Stonnwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Is a bridge included in plans for subject property project? D No CJ Yes If "yes• provide the following information. Name( s) and functional classification of the roadway( s )? What drainage way(s) is to be crossed? U) ar C> 'C ·.:: ID 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? t J Yes I .. i No lf"no" explain : Is a Stormwater Provide a general description of planned techniques : ~ Pollution Prevention Silt fencing and hay bales, along with rip rap and headwall protection . The (\j Plan (SW3P) contractor will be responsible for establishing, implementing, and ::J 0 established for maintaining a SWPPP . .... project construction? Q) -~ 0 No I J' 11 Yes Special Designs -Non-Traditional Methods Are any non-traditional methods (aquatic echosystems, wetland-type detention, natural stream replication, BMPs for water quality, etc.) proposed for any aspect of subject property project? ..IZJ.No .D 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? STORMWATER DESIGN GUIDELINES Effective February 2007 Yes Page 22 of26 No If "no" explain: APPENDIX. D: TECH . DESIGN SUMMARY As Revised ___ _ I I 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 material(s) of traditional runoff-handling facilities deviate from provisions of B-CS Techn ical Specifications, check type facility(ies) and explain by specific detail element. .c::::J. Detention elements ...D_ Drain system elements J::l Channel features ..D_ Culvert features r:l swales r::J. Ditches L_J Inlets D outfalls ...D_ Valley gutters ...c:J. Bridges (explain in bridge report) In table below briefly identify specific element, justification for deviation(s). Specifi c 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? J:Zl Yes J::l No Briefly summarize the range of applications made of the Rational Formula : What is the size and location of largest Design Drainage Area to which the Rational Formula has been applied? acres STORMWATER DESIGN GUIDELINES Effective February 2007 Location (or identifier): Page 23 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters j Continued (Page 4.15) Design Parameters (continued) Hydrology (continued) In making determinations for time of concentration, was segment analysis used? Cl No D 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? J::1. No r::l 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 Storm drain system for local streets Open channels 2,5, 10,25,50 100 Swale/buried conduit combination in lieu of channel Swales Roadside ditches and culverts serving them 2,5,10,25 ,50 100 Detention facilities: spillway crest and its outfall 2 ,5, 10 ,25 ,50 100 Detention facilities: outlet and conveyance structure(s) 2,5 ,10,25,50 100 Detention facilities: volume when outlet plugged 2,5 ,10 25 Culverts serving private drives or streets Culverts serving public roadways Bridges: provide in bridge report. Hydraulics What is the range of design flow velocities as outlined below? Design flow velocities; Gutters Conduit Culverts Swales Channels Highest (feet per second) 3.49 3.57 Lowest (feet per second) 2 .71 2.61 Streets and Storm Drain Systems Provide the summary information outlined below: Roughness coefficients used: For conduit type(s) STORMWATER DESIGN GUIDELINES Effective February 2007 For street gutters: Page 24 of 26 Coefficients : APPENDIX . D: TECH . DESIGN SUMMARY As Revised ___ _ I I I I I I I I I I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .16) Design Parameters (continued) Hydraulics (continued) Street and Storm Drain Systems (continued) For the following, are assumptions other than allowable per Guidelines? Inlet coefficients? D No D Yes Head and friction losses I i No .D Yes Explain any "yes" answer: In conduit is velocity generally increased in the downstream direction? W Yes W No Are elevation drops provided at inlets, manholes, and junction boxes? 0 Yes .D No Explain any "no" answers: Are hydraulic grade lines calculated and shown for design storm? L .. J Yes L .J No For 100-year flow conditions? r::J Yes L .J No Explain any "no" answers: What tailwater conditions were assumed at outfall point(s) of the storm drain system? Identify each location and explain : Open Channels If a HEC analysis is utilized , does it follow Sec Vl.F .5.a? D. Yes .D No Outside of straight sections, is flow regime within limits of sub-critical flow? D Yes r::J No If "no" list locations and explain: Culverts If plan sheets do not provide the following for each culvert, describe it here. For each design discharge, will operation be outlet (barrel) control or inlet control? Outlet Entrance, friction and exit losses : Ke= 0.500 Bridges Provide all in bridge report STORMWATER DESIGN GUIDELINES Effective February 2007 Page 25 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt and Design Parameters I Continued (Page 4.17) Design Parameters (continued) 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 HydroCAD 8.00 Software Solutions LLC Part 5 -Plans and SQecifications 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 : No negative downstream affects will occur. Attestation Prov ide attestation to the accuracy and completeness of the foregoing 6 Parts of this Technical Desiqn Summary Drainage Report by signing and sealing 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 pr~~~Re improvements have been issued or fall under applicable general permits.".:-~~ ............ '.8"-t-1. ''• 1 Wi~ (Affix Seal) f•~·/ * ·····.~~\ ~ *: ·. * '/. ~ -'"" L.-f·jEFFERv"L'.'RO'sEfirsoN··~ Li; ~~t::Jrofessfonal Engineer ,.~~.: .......... 94745······"}$} State of Texas PE No . ~4145 STORMWATER DESIGN GUIDELINES Effectiv e February 2007 Page 26 of 26 1 o··. .: ki~ 111 ~··.~(CENS~?.··(j-~ .;" ,, IS's ........... ~ : \\\\~ONA\.~--....:-~,,,,,, .... APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ I SUMMARY Duck Haven, Phase V Drainage Report MEES!# 1062-0024 This storm drainage report is intended to analyze the drainage infrastructure proposed for the development of the Duck Haven Subdivision, Phase Five . The existing and proposed conditions are included to show how the design will achieve the desired drainage objectives of Brazos County and the City of College Station. GENERAL INFORMATION Area encompassed by this phase: Anticipated land use: Anticipated number of lots: 19 .96 acres Single family residential 15 lots Notes on surrounding development: The area surrounding the site is partially developed with existing phases of Duck Haven to the South, undeveloped phases of Duck Haven to the East, and undeveloped land to the North and West.. FLOOD HAZARD INFORMATION FEMA FIRM Map #: 48041 C0215 C Effective Date: July 2, 1992 Comments: No portion of the site is shown to be within the 100-year floodplain, so it is not currently regulated under the National Flood Insurance Program. Applicable Exhib its : A-1-Excerpt ofFEMA FIRM DESCRIPTION OF DRAINAGE SYSTEMS Primary System: Secondary System: The site is wooded with dense undergrowth. Phase Five slopes toward an existing tributary in the North comer of the site, and sheet flows offsite onto undeveloped land. The tributary flows to Boggy Creek. Boggy Creek flows to the Brazos River. The remainder of Phase V was considered during the construction of Phase III. Runoff from the residential lots will be captured in roadside ditches where it will be conveyed a proposed detention pond and released to a natural stream at pre-development flow rates. Corrugated metal pipes will be used as culverts at road crossings. SECONDARY STORM DRAIN DESIGN Design Storm : Design Methodology Hydrology: Software Model: Time of Concentration: Curve Numbers: Hydraulics : Software Model: Manning 's N· Applicable Exhibits : Drainage Report C-1 C-2 C-3 10-yr Return Period (Ditches) 100-yr Return Period (Culverts) SCS Method HydroCAD 8.0 minimum = 10 min. 75 -Undeveloped area 98 -Paved areas Manning's Equation HydroCAD 8.0 0.024 (corrugated metal) Existing Condition Runoff Summary from HydroCAD Proposed Condition Runoff Summary from HydroCAD Ditch and Culvert Summary from HydroCAD Duck Haven , Phase V I DETENTION REQUIREMENTS Summary: A proposed pond on the property will provide stormwater detention for this phase of the subdivision along with a portion of a future phase. A proposed pond built during the construction of Phase III accounts for Drainage Area 2E, as shown in exhibit B-1. The pond captures the stormwater from Drainage Area IP, as shown in exhibit B-2. The outlet from the pond are two 18" corrugated metal pipes and an overflow weir set at elevation 289'. The invert of the culverts are set at 286.96'. Drainage Area 2P , as shown in exhibit B-2, bypasses the pond and exits the site as sheet flow in the same manor as the existing condition. The following is a summary of the total runoff rates off the site to Study Point 1 as shown on Exhibit "B-2" and elevations in the pond and upstream of the proposed culvert: Event Existing Proposed W .S.E. Conditions Conditions (Pond) 5 year 58.68 cfs 55.57 cfs 29 0.19 ' 10 year 76.47 cfs 73.46 cfs 29 0.42' 25 year 97.57 cfs 94.75 cfs 290.64' 50 year 112.75 cfs 109 .79 cfs 290.7 8' 100 year 131.03 cfs 127.74 cfs 290.92' Applicable Exhibits : B-1 Drainage Area Map -Existing Condition Drainage Area Map -Proposed Condition B-2 C-1 C-2 Existing Condition Runoff Summary from HydroCAD Proposed Condition Runoff Summary from HydroCAD EROSION AND SEDIMENTATION CONTROLS Control Measures: SWPPP : Drainage Report Silt fence Hydro-mulch seeding Rock Filter Dams Straw Bale Barriers Construction entrance/exit The contractor shall be responsible for establishing and maintaining the SWPPP in accordance with TCEQ requirements. Duck Haven , Phase V EXHIBIT C-1 EXISTING CONDITION RUNOFF SUMMARY (HYDROCAD OUTPUT) Drainage Report Duck Haven , Phase V 1E 1E Drainage Diagram for Ex-Conditions Prepared by {enter your company name here} 10/3/2007 HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Sol ut io ns LLC Area Listing (all nodes) Area (acres) CN Description (subcats) 23 .720 75 (1E) 23 .720 Page 2 10/3/2007 Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 2 Rainfal/=4 .50" Page 3 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs , dt=0 .05 hrs, 301 points Runoff by SCS TR -20 method , UH=SCS Reach routing by Ster-Ind+ Trans method -Pond routing by Ster-Ind method Subcatchment 1E: 1E Runoff Area=23 .720 ac Runoff Depth>1 .88" Flow Length=750 ' Slope=0 .0136 'f Tc=25 .1 min CN=75 Runoff=34 .50 cfs 3.722 af Total Runoff Area= 23.720 ac Runoff Volume= 3.722 af Average Runoff Depth= 1.88" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 2 Rainfal/=4 .50" Page4 10/3/2007 Runoff = 34 .50 cfs @ 12 .36 hrs, Volume= 3.722 af, Depth> 1.88" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20.00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (fUsec) (cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfal/=6.20" Page 5 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs, dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 .720 ac Runoff Depth>3.20" Flow Length=750' Slope=0.0136 '/' Tc=25.1 min CN=75 Runoff=58.68 cfs 6 .325 af Total Runoff Area= 23.720 ac Runoff Volume= 6.325 af Average Runoff Depth= 3.20" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac Ex-Conditions Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 5 Rainfal/=6.20" Page 6 10/3/2007 Runoff = 58 .68 cfs@ 12 .35 hrs , Volume= 6.325 af, Depth> 3.20" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type 111 24-hr 5 Rainfall=6.20" Area (ac) CN Description 23 .720 75 23 . 720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (fUsec) ( cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40" Page 7 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth>4 .19" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=76.47 cfs 8.282 af Total Runoff Area= 23.720 ac Runoff Volume= 8.282 af Average Runoff Depth= 4.19" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 10 Rainfal/=7.40" Page 8 10/3/2007 Runoff = 76.47 cfs@ 12 .35 hrs , Volume= 8.282 af, Depth> 4.19 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Ra infall=7.40" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, Ex-Conditions Prepared by {ente r your company name here} Type Ill 24-hr 25 Rainfal/=8.80" Page 9 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solu ti ons LLC Time span=S.00-20 .00 hrs , dt=0 .05 hrs , 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 .720 ac Runoff Depth >S.38" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=97 .57 cfs 10 .644 af Total Runoff Area= 23.720 ac Runoff Volume= 10.644 af Average Runoff Depth= 5.38" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I Ex-Conditions Prepared by {en t er your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solu ti ons LLC Subcatchment 1 E: 1 E Type Ill 24 -hr 25 Ra infal/=8 . 80 " Page 10 10/3/2007 Runoff = 97 .57 cfs @ 12 .34 hrs, Volume= 10 .644 af, Depth> 5.38 " Runoff by SCS TR -20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type 111 24-hr 25 Rainfall=8 .80" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .1 750 0.0136 0 .50 Lag/CN Method, I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 11 10/3/2007 HydroCAD ® 8.00 si n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=S .00-20 .00 hrs, dt=0 .05 hrs, 301 po ints Runoff by SCS TR-20 method , UH=SCS Reach routing by Ster-Ind+ Trans method -Pond routing by Star-Ind method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth>6 .26" Flow Length=750 ' Slope=0 .0 136 '/' Tc=25 .1 min CN=75 Runoff=112 .75 cfs 12 .368 af Total Runoff Area = 23. 720 ac Runoff Volume = 12.368 af Average Runoff Depth = 6.26" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 50 Rainfal/=9. 80" Page 12 10/3/2007 Runoff = 112 .75 cfs@ 12 .34 hrs , Volume= 12 .368 af, Depth> 6 .26" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.1 750 0.0136 0 .50 Lag/CN Method, I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 13 10/3/2007 HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solu ti o ns LLC T ime span=S .00-20 .00 hrs , dt=0 .05 hrs , 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1E: 1E Runoff A rea=23 .720 ac Runoff Depth >7 .32" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=131 .03 cfs 14.468 af Total Runoff Area= 23.720 ac Runoff Volume= 14.468 af Average Runoff Depth= 7.32" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 E: 1 E Type 11124-hr 100 Rainfal/=11 .00" Page 14 10/3/2007 Runoff = 131 .03 cfs@ 12 .34 hrs , Volume= 14.468 af, Depth> 7.32" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type 11124-hr 100 Rainfall=11 .00" Area (ac) CN Description 23.720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, EXHIBIT C-2 DEVELOPED CONDITION RUNOFF SUMMARY (HYDROCAD OUTPUT) Drainage Report Duck Haven , Phase V 0 ~ea to Pond ~ Total Proposed Flow Drainage Diagram for Proposed Prepared by {enter your company name here} 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solu ti o ns LLC Area Listing (all nodes) Area (acres) CN Description (subcats) 20 . 7 40 75 Undeveloped (1 P ,2P) Page 2 10/3/2007 2.108 98 Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) (1P ,2P) 0.872 98 Street Area (1 P,2P) 23 .720 I Proposed Prepared by {enter your company name here} Type Ill 24-hr 2 Rainfal/=4 .50" Page 3 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=S .00-20 .00 hrs , dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>2.12" Flow Length=750 ' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=21 .67 cfs 2 .354 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>2 .13" Flow Length=400' Slope=0.0162 '/' Tc=12.8 min CN=78 Runoff=22 .08 cfs 1.837 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=289 .69' Storage=8,907 cf lnflow=21.67 cfs 2.354 af Outflow=19.45 cfs 2.349 af lnflow=32.55 cfs 4 .186 af Primary=32 .55 cfs 4 .186 af Total Runoff Area = 23. 720 ac Runoff Volume = 4.191 af Average Runoff Depth = 2.12" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Type Ill 24-hr 2 Rainfal/=4 .50" Page4 10/3/2007 Runoff = 21 .67 cfs@ 12 .36 hrs , Volume= 2.354 af, Depth> 2.12" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4.50" Area (ac) 11 .576 1.116 0.656 13.348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 22 .08 cfs@ 12 .18 hrs, Volume= 1.837 af, Depth> 2.13" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN 9.164 75 0.992 98 0.216 98 10 .372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area= Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13.348 ac, Inflow Depth> 2.12" 21 .67 cfs@ 12.36 hrs , Volume= 19.45 cfs @ 12.49 hrs, Volume= 19.45 cfs @ 12.49 hrs, Volume= for 2 event 2.354 af 2.349 af, Atten= 10%, Lag= 7.5 min 2 .349 af Routing by Stor-lnd method, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 289 .69'@ 12.49 hrs Surf.Area= 6,681 sf Storage= 8,907 cf Plug-Flow detention time= 6.1 min calculated for 2.341 af (99% of inflow) Center-of-Mass det. time= 5.3 min ( 815 .9 -810 .6 ) Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solu ti ons LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 2 Rainfal/=4 .50" Page 5 10/3/2007 #1 287 .00 ' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288.00 289 .00 290 .00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (Sq-ft) 0 2,725 4 ,620 7 ,628 11,759 Inc.Store (cubic-feet) 0 1,363 3 ,673 6 ,124 9,694 Cum .Store (cubic-feet) 0 1,363 5 ,035 11, 159 20,853 Invert Outlet Devices 287 .00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0 .500 Outlet Invert= 286 . 75' S= 0 .0050 '/' Cc= 0.900 n= 0.025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2.00 Width (feet) 0.00 8.00 16.00 Primary OutFlow Max=19 .38 cfs@ 12.49 hrs HW=289.68' (Free Discharge) t1=Culvert (Barrel Controls 15 .36 cfs @4.35 fps) 2=Custom Weir/Orifice (Weir Controls 4 .02 cfs@ 2.16 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 2.12" for 2 event Inflow = 32.55 cfs@ 12 .20 hrs , Volume= 4.186 af Primary = 32 .55 cfs@ 12 .20 hrs , Volume= 4 .186 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5 .00-20 .00 hrs , dt= 0 .05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfal/=6.20" Page 6 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs, dt=0 .05 hrs , 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>3.49" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=35 .57 cfs 3.886 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10.372 ac Runoff Depth>3 .51" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=36 .22 cfs 3.032 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290 .19' Storage=12 ,674 cf lnflow=35 .57 cfs 3.886 af Outflow=34 .03 cfs 3.879 af lnflow=55 .57 cfs 6.911 af Primary=55 .57 cfs 6.911 af Total Runoff Area= 23.720 ac Runoff Volume= 6.917 af Average Runoff Depth= 3.50" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Type Ill 24-hr 5 Rainfal/=6.20" Page 7 10/3/2007 Runoff = 35.57 cfs @ 12.35 hrs , Volume= 3.886 af, Depth> 3.49" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6.20" Area (ac) 11 .576 1.116 0.656 13.348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 36 .22 cfs@ 12.18 hrs , Volume= 3.032 af, Depth> 3.51" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) CN 9.164 75 0.992 98 0.216 98 10.372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area= Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 3.49" 35 .57 cfs@ 12 .35 hrs , Volume= 34 .03 cfs@ 12.43 hrs , Volume= 34 .03 cfs@ 12.43 hrs , Volume= for 5 event 3.886 af 3.879 af, Atten= 4%, Lag= 4 .5 min 3 .879 af Routing by Stor-lnd method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 290 .19 ' @ 12.43 hrs Surf.Area= 8,408 sf Storage= 12 ,67 4 cf Plug-Flow detention t i me= 6.0 min calculated for 3.879 af (100% of inflow) Center-of-Mass det. time= 5.3 min ( 804 .5 -799 .3) Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 5 Rainfal/=6.20" Pages 10/3/2007 #1 287 .00 ' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289.00 290 .00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2 ,725 4 ,620 7,628 11 ,759 Inc.Store (cubic-feet) 0 1,363 3 ,673 6,124 9 ,694 Cum .Store (cubic-feet) 0 1,363 5 ,035 11 , 159 20 ,853 Invert Outlet Devices 287.00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0 .500 Outlet Invert= 286 .75' S= 0 .0050 '!' Cc= 0.900 n= 0.025 Corrugated metal 289.00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2.00 Width (feet) 0 .00 8.00 16 .00 Primary OutFlow Max=33 .86 cfs @ 12.43 hrs HW=290.18' (Free Discharge) t1=Culvert (Barrel Controls 17 .85 cfs@ 5.05 fps) 2=Custom Weir/Orifice (Weir Controls 16.01 cfs@ 2 .85 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 3.50" for 5 event Inflow = 55 .57 cfs@ 12.34 hrs , Volume= 6 .911 af Primary = 55 .57 cfs@ 12 .34 hrs , Volume= 6 .911 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5 .00-20.00 hrs , dt= 0.05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40" Page 9 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs, dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>4 .52" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=45 .65 cfs 5.023 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>4 .53" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=46.46 cfs 3.919 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290.42' Storage=14 ,771 cf lnflow=45 .65 cfs 5.023 af Outflow=44 .33 cfs 5.015 af lnflow=73.46 cfs 8.934 af Primary=73.46 cfs 8.934 af Total Runoff Area= 23.720 ac Runoff Volume= 8.942 af Average Runoff Depth= 4.52" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfaf/=7.40" Page 10 10/3/2007 HydroCAD ® 8 .00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 P: Area to Pond Runoff = 45 .65 cfs @ 12 .35 hrs , Volume= 5.023 af, Depth> 4 .52" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40 " Area (ac) 11 .576 1.116 0.656 13 .348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 46.46 cfs@ 12.18 hrs , Volume= 3.919 af, Depth> 4 .53" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40" Area (ac) 9.164 0.992 0.216 10 .372 9.164 1.208 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 4 .52" 45 .65 cfs@ 12 .35 hrs, Volume= 44.33 cfs@ 12.41 hrs , Volume= 44 .33 cfs@ 12.41 hrs , Volume= for 10 event 5.023 af 5.015 af, Atten= 3%, Lag= 3.7 min 5.015 af Routing by Stor-lnd method, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 290.42'@ 12.41 hrs Surf.Area= 9,382 sf Storage= 14 ,771 cf Plug-Flow detention t ime= 5.8 min calculated for 4.998 af (100 % of inflow) Center-of-Mass det. t ime= 5.2 min ( 798 .5 -793 .3 ) Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 10 Rainfal/=7.40" Page 11 10/3/2007 #1 287 .00 ' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290 .00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2,725 4,620 7,628 11 ,759 Inc .Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum .Store (cubic-feet) 0 1,363 5,035 11 , 159 20 ,853 Invert Outlet Devices 287.00' 18.0" x 50.0' long Culvert X 2.00 CMP, end-section conforming to fill , Ke= 0.500 Outlet Invert= 286.75' S= 0.0050 'f Cc= 0.900 n= 0.025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2 .00 Width (feet) 0.00 8.00 16 .00 Primary OutFlow Max=44 .13 cfs@ 12.41 hrs HW=290.42' (Free Discharge) t1=Culvert (Barrel Controls 18 .91 cfs@ 5.35 fps) 2=Custom Weir/Orifice (Weir Controls 25.21 cfs@ 3.12 fps) Link SP1: Total Proposed Flow Inflow Area = 23.720 ac, Inflow Depth> 4 .52" for 10 event Inflow = 73.46 cfs@ 12 .29 hrs, Volume= 8.934 af Primary = 73.46 cfs@ 12.29 hrs, Volume= 8.934 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfal/=8.80" Page 12 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs , dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff A rea=13 .348 ac Runoff Depth>5 .74" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=57 .51 cfs 6.386 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth >5.76" Flow Length=400 ' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=58 .82 cfs 4 .981 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290 .64' Storage=16,932 cf lnflow=57.51 cfs 6 .386 af Outflow=56 .21 cfs 6 .376 af lnflow=94.75 cfs 11 .358 af Primary=94. 75 cfs 11 . 358 af Total Runoff Area = 23. 720 ac Runoff Volume = 11.368 af Average Runoff Depth = 5. 75" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfal/=8.80" Page 13 10/3/2007 HydroCA D® 8.00 sin 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 P: Area to Pond Runoff = 57 .51 cfs@ 12.35 hrs , Volume= 6.386 af, Depth> 5.74" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 25 Rainfall=8.80" Area (ac) 11 .576 1.116 0.656 13.348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200 'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 58 .82 cfs @ 12 .17 hrs , Volume= 4 .981 af, Depth> 5.76" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00 -20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 25 Rainfall=8 .80" Area (ac) CN 9.164 75 0.992 98 0.216 98 10.372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac , Inflow Depth> 5.74 " 57 .51 cfs@ 12.35 hrs , Volume= 56 .21 cfs@ 12.40 hrs , Volume= 56 .21 cfs @ 12.40 hrs , Volume= for 25 event 6.386 af 6.376 af, Atten= 2%, Lag= 3.3 min 6.376 af Routing by Stor-lnd method , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 290 .64'@ 12.40 hrs Surf.Area= 10 ,290 sf Storage= 16 ,932 cf Plug-Flow detention ti me= 5. 7 min calculated for 6 .355 af (100 % of inflow) Center-of-Mass det. time= 5.0 m in ( 792 .7 -787 .7) I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 25 Rainfall=B.80" Page 14 10/3/2007 #1 287 .00 ' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290.00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2,725 4 ,620 7 ,628 11 ,759 Inc.Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum.Store (cubic-feet) 0 1,363 5 ,035 11 , 159 20,853 Invert Outlet Devices 287 .00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0 .500 Outlet Invert= 286.75' S= 0.0050 '/' Cc= 0 .900 n= 0 .025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0 .00 1.00 2 .00 Width (feet) 0 .00 8 .00 16.00 Primary OutFlow Max=56.17 cfs@ 12.40 hrs HW=290.64' (Free Discharge) t1=Culvert (Barrel Controls 19.86 cfs@ 5.62 fps) 2=Custom Weir/Orifice (Weir Controls 36 .31 cfs @ 3.36 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 5.75" for 25 event Inflow = 94 . 75 cfs @ 12.26 hrs , Volume= 11 .358 af Primary = 94 .75 cfs@ 12.26 hrs, Volume= 11.358 af, Atten= 0%, Lag= 0 .0 min Primary outflow= Inflow, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs I I I I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 15 10/3/2007 HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Time span=5 .00-20 .00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>6 .63" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=66 .01 cfs 7.377 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>6 .66" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=67.49 cfs 5.754 af Pond Pond: Proposed Pond Peak Elev=290 .78' Storage=18 ,359 cf lnflow=66.01 cfs 7.377 af Outflow=64 .69 cfs 7.366 af Link SP1: Total Proposed Flow lnflow=109.79 cfs 13 .119 af Primary=109 . 79 cfs 13 .119 af Total Runoff Area = 23 . 720 ac Runoff Volume = 13.131 af Average Runoff Depth = 6.64" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I I I I I I I I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 16 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Runoff = 66 .01 cfs@ 12 .35 hrs , Volume= 7.377 af , Depth> 6.63" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN 11 .576 75 1.116 98 0.656 98 13 .348 78 11 .576 1.772 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 67.49 cfs @ 12 .17 hrs , Volume= 5.754 af, Depth> 6.66" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN 9.164 75 0.992 98 0.216 98 10 .372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 6.63" 66 .01 cfs@ 12.35 hrs, Volume= 64 .69 cfs @ 12.40 hrs, Volume= 64 .69 cfs @ 12.40 hrs , Volume= for 50 event 7.377 af 7.366 af, Atten= 2%, Lag= 3.0 min 7.366 af Routing by Stor-lnd method, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 290 .78'@ 12.40 hrs Surf.Area= 10 ,848 sf Storage= 18 ,359 cf Plug-Flow detention t ime= 5.6 min calculated for 7 .366 af (100% of inflow) Center-of-Mass det. time= 5.0 min ( 789 .2 -784 .3) I I I I I I I Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software So lut ions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 50 Rainfal/=9 .80" Page 17 10/3/2007 #1 287.00' 20 ,853 cf Custom Stage Data {Prismatic) Listed below (Recalc) Elevation (feet) 287.00 288 .00 289 .00 290 .00 291 .00 Device Routing Surf.Area (sq-ft) 0 2 ,725 4 ,620 7 ,628 11 ,759 Inc.Store (cubic-feet) 0 1,363 3,673 6 ,124 9 ,694 Invert Outlet Devices Cum .Store (cubic-feet) 0 1,363 5 ,035 11 , 159 20 ,853 #1 Primary 287 .00 ' 18.0" x 50 .0' long Culvert X 2.00 #2 Primary CMP , end-section conform ing to fill , Ke= 0 .500 Outlet Invert= 286 .75' S= 0 .0050 'f Cc= 0 .900 n= 0 .025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0 .00 1.00 2 .00 Width (feet) 0 .00 8.00 16 .00 Primary OutFlow Max=64 .58 cfs@ 12.40 hrs HW=290.78' (Free Discharge) t1=Culvert (Barrel Controls 20.41 cfs @ 5.77 fps) 2=Custom Weir/Orifice (Weir Controls 44 .17 cfs@ 3.49 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 6 .64" for 50 event Inflow = 109. 79 cfs @ 12 .25 hrs , Volume= 13 .119 af Primary = 109.79 cfs@ 12 .25 hrs, Volume= 13 .119 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5 .00-20 .00 hrs , dt= 0 .05 hrs I I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfall=11 .00" Page 18 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs , dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>7.71" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=76 .21 cfs 8.579 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>7 .74" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=77 .88 cfs 6.690 af Pond Pond: Proposed Pond Peak Elev=290 .92' Storage=19 ,976 cf lnflow=76 .21 cfs 8.579 af Outflow=74 .84 cfs 8.566 af Link SP1: Total Proposed Flow lnflow=127.74 cfs 15 .257 af Primary=127 .74 cfs 15 .257 af Total Runoff Area= 23.720 ac Runoff Volume= 15.270 af Average Runoff Depth= 7.72" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 19 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Runoff = 76 .21 cfs@ 12 .34 hrs , Volume= 8 .579 af, Depth> 7 .71" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type Ill 24-hr 100 Rainfall=11 .00" Area (ac) 11.576 1.116 0 .656 13.348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.6 750 0 .0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 77.88 cfs@ 12 .17 hrs, Volume= 6.690 af, Depth> 7.74" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type 11124-hr 100 Rainfall=11.00" Area (ac) 9.164 0.992 0.216 10 .372 9.164 1.208 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0 .0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 7 .71" 76 .21 cfs@ 12 .34 hrs , Volume= 74 .84 cfs@ 12 .39 hrs, Volume= 74 .84 cfs@ 12 .39 hrs , Volume= for 100 event 8.579 af 8.566 af, Atten= 2%, Lag= 2 .9 min 8 .566 af Routing by Ster-Ind method, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 290.92' @ 12 .39 hrs Surf.Area= 11,447 sf Storage= 19,976 cf Plug-Flow detention time= 5.5 min calculated for 8.566 af (100% of inflow) Center-of-Mass det. time= 4 .9 min ( 785 .6 -780 .7) I I I I I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 100 Rainfal/=11 .00" Page 20 10/3/2007 #1 287.00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc .Store Cum.Store {feet} {sg-ft} {cubic-feet} {cubic-feet} 287 .00 0 0 0 288 .00 2 ,725 1,363 1,363 289 .00 4 ,620 3,673 5,035 290 .00 7 ,628 6 ,124 11, 159 291 .00 11 ,759 9,694 20,853 Device Routing Invert Outlet Devices #1 Primary 287 .00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill, Ke= 0 .500 Outlet Invert= 286.75' S= 0.0050 '/' Cc= 0.900 n= 0.025 Corrugated metal #2 Primary 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2 .00 Width (feet) 0.00 8.00 16 .00 Primary OutFlow Max=74 .61 cfs@ 12 .39 hrs HW=290 .92' (Free Discharge) t1=Culvert (Barrel Controls 20 .98 cfs@ 5.94 fps) 2=Custom Weir/Orifice (Weir Controls 53 .63 cfs @ 3.63 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac , Inflow Depth> 7.72" for 100 event Inflow = 127 .74 cfs@ 12.25 hrs , Volume= 15.257 af Primary = 127 .74 cfs@ 12 .25 hrs , Volume= 15 .257 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs I I I I I I Drainage Report EXHIBIT C-3 DITCH AND CULVERT SUMMARY (HYDROCAD OUTPUT) Duck Haven , Phase V Cul OD Outfall Ditch Outfall Ditch Drainage Diagram for Ditch and Culvert Prepared by {enter your company name here} 10/3/2007 HydroCA D® 8.00 sin 0043 23 © 2006 HydroCAD Software Solutions LLC I I Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8 .00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcats) 5.085 75 Undeveloped (OD) 0.656 93 Paved roads w/open ditches, 50% imp , HSG D (Cul ,OD) 0.496 98 Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) (OD) 6.237 Page 2 10/3/2007 Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 2 Rainfal/=4.50" Page 3 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0 .00-20.00 hrs, dt=0.05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Star-Ind+ Trans method -Pond routing by Star-Ind method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>3 .51" Tc=10 .0 min CN=93 Runoff=1 .09 cfs 0.089 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>2 .12" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=9 .63 cfs 1.046 af Reach Ditch: Outfall Ditch Avg . Depth=0 .98' Max Vel=2 .61 fps lnflow=10 .16 cfs 1.135 af n=0 .030 L=544 .9' S=0.0075 'f Capacity=67 .29 cfs Outflow=9 .97 cfs 1.130 af Pond 18" CMP: 18" CMP Peak Elev=293 .24' lnflow=1 .09 cfs 0.089 af 18.0" x 51 .0' Culvert Outflow=1 .09 cfs 0.089 af Total Runoff Area= 6.237 ac Runoff Volume= 1.135 af Average Runoff Depth= 2.18" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac I Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24-hr 2 Rainfal/=4 .50" Page4 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 1.09 cfs@ 12 .14 hrs , Volume= 0.089 af, Depth> 3.51" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10 .0 Runoff = 93 Paved roads w/open ditches, 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) ( cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 9.63 cfs@ 12.36 hrs , Volume= 1.046 af, Depth> 2.12" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) 5.085 0.496 0.351 5.932 5.260 0.671 CN 75 98 93 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6 .237 ac, Inflow Depth > 2.18" for 2 event Inflow = 10.16 cfs@ 12 .35 hrs, Volume= 1.135 af Outflow = 9.97 cfs@ 12.46 hrs , Volume= 1.130 af, Atten= 2%, Lag= 6.3 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20.00 hrs, dt= 0.05 hrs Max. Velocity= 2.61 fps, Min. Travel Time= 3.5 min Avg . Velocity = 1.05 fps , Avg . Travel Time= 8.6 min Peak Storage= 2 ,086 cf@ 12.40 hrs, Average Depth at Peak Storage= 0.98' Bank-Full Depth= 2.00', Capacity at Bank-Full= 67 .29 cfs I I Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Softwa re Solut io ns LLC 0.00' x 2.00 ' deep channel , n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99 ', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 2 event 0.089 af Type Ill 24-hr 2 Rainfal/=4 .50 " Page 5 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth> 3.51 " 1.09 cfs@ 12 .14 hrs , Volume= 1.09 cfs @ 12 .14 hrs , Volume= 1.09 cfs@ 12 .14 hrs , Volume= 0.089 af, Atten= 0%, Lag= 0.0 min 0.089 af Routing by Stor-lnd method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 293.24 '@ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51 .0' long Culvert CMP , square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=1 .07 cfs@ 12.14 hrs HW=293 .24' (Free Discharge) L1=Culvert (Barrel Controls 1.07 cfs@ 2 .71 fps) I I I Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfal/=6.20 " Page6 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=0 .00-20 .00 hrs , dt=0 .05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>5 .11" Tc=10 .0 min CN=93 Runoff=1 .54 cfs 0.130 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>3.49" Flow Length=750 ' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=15 .81 cfs 1.727 af Reach Ditch: Outfall Ditch Avg. Depth=1.18' Max Vel=2 .95 fps lnflow=16.57 cfs 1.857 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=16 .35 cfs 1.850 af Pond 18" CMP: 18" CMP Peak Elev=293 .36' lnflow=1 .54 cfs 0.130 af 18 .0" x 51 .0' Culvert Outflow=1.54 cfs 0.130 af Total Runoff Area = 6.237 ac Runoff Volume= 1.857 af Average Runoff Depth = 3.57" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24-hr 5 Rainfal/=6.20" Page 7 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 1.54 cfs @ 12 .14 hrs , Volume= 0.130 af, Depth> 5.11 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 15 .81 cfs@ 12.35 hrs , Volume= 1. 727 af, Depth> 3.49" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6 .237 ac, Inflow Depth> 3.57" for 5 event Inflow = 16 .57 cfs@ 12 .35 hrs , Volume= 1.857 af Outflow = 16 .35 cfs@ 12.44 hrs , Volume= 1.850 af, Atten= 1%, Lag= 5.5 min Routing by Stor-lnd+ Trans method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 2.95 fps , Min . Travel Time= 3.1 min Avg . Velocity= 1.18 fps , Avg . Travel Time= 7.7 min Peak Storage= 3,018 cf@ 12 .39 hrs, Average Depth at Peak Storage= 1.18' Bank-Full Depth= 2.00 ', Capacity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solut ions LLC 0.00 ' x 2.00 ' deep channel , n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99 ', Outlet Invert= 287 .90 ' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 5 event 0.130 af Type Ill 24 -hr 5 Rainfal/=6.20 " Page 8 10/3/2007 Outflow = Primary = 0.305ac, lnflowDepth> 5.11 " 1.54 cfs@ 12 .14 hrs , Volume= 1.54 cfs@ 12 .14 hrs , Volume= 1.54cfs@ 12 .14hrs, Volume= 0.130 af, Atten= 0%, Lag= 0.0 min 0.130 af Routing by Stor-lnd method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 293 .36'@ 12 .14 hrs Device Routing #1 Pr imary Invert Outlet Devices 292 .69 ' 18.0" x 51.0' long Culvert CMP , square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=1 .52 cfs@ 12 .14 hrs HW=293 .35 ' (Free Discharge) L1=Culvert (Barre l Controls 1.52 cfs @ 2 .98 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40 " Page 9 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0.00-20 .00 hrs , dt=0 .05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>6 .24 " Tc=10 .0 min CN=93 Runoff=1 .86 cfs 0.159 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>4 .52 " Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=20 .29 cfs 2.232 af Reach Ditch: Outfall Ditch Avg . Depth=1 .29' Max Vel=3.14 fps lnflow=21 .21 cfs 2 .391 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=20 .96 cfs 2.383 af Pond 18" CMP: 18" CMP Peak Elev=293.43' lnflow=1 .86 cfs 0.159 af 18 .0" x 51 .0' Culvert Outflow=1 .86 cfs 0.159 af Total Runoff Area = 6.237 ac Runoff Volume= 2.391 af Average Runoff Depth = 4.60" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 00 4 323 © 2006 HydroCAD Software Solutions LLC Type Ill 24 -hr 10 Rainfal/=7.40 " Page 10 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 1.86 cfs @ 12 .14 hrs , Volume= 0.159 af, Depth> 6.24 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Ra infall=7.40" Area (ac) CN Description 0.305 0.152 0 .1 52 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry , Minimum Tc Subcatchment OD: Area to Outfall Ditch 20 .29 cfs @ 12 .35 hrs , Volume= 2.232 af, Depth> 4 .52" Runoff by SCS TR-20 method , UH=SCS, Time Span = 0.00 -20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40 " Area (ac) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac, Inflow Depth> 4 .60 " for 10 event Inflow = 21 .21 cfs@ 12 .34 hrs , Vo lume= 2.391 af Outflow = 20 .96 cfs@ 12.43 hrs , Volume= 2.383 af, Atten= 1%, Lag= 5.2 min Routing by Stor-lnd+ Trans method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 3.14 fps , Min . T ravel Time= 2.9 min Avg . Velocity= 1.26 fps , Avg . Travel Time= 7.2 min Peak Storage= 3,636 cf@ 12 .38 hrs , Average Depth at Peak Storage= 1.29' Bank-Fu ll Depth= 2 .00', Capac ity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solut ions LLC Type Ill 24-hr 10 Rainfal/=7.40" Page 11 10/3/2007 0.00' x 2.00 ' deep channel, n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99', Outlet Invert= 287 .90 ' Pond 18" CMP: 18" CMP Inflow Area= Inflow = Outflow = Primary = 0.305 ac , Inflow Depth > 6.24" for 1.86 cfs@ 12 .14 hrs , Volume= 1.86 cfs@ 12 .14 hrs , Volume= 1.86 cfs@ 12 .14 hrs , Volume= 10 event 0.159 af 0.159 af, Atten= 0%, 0.159 af Routing by Stor-lnd method, Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 293.43'@ 12 .14 hrs Device Routing Invert Outlet Devices Lag= 0.0 min #1 Pr imary 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall, Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0 .024 Primary OutFlow Max=1 .83 cfs@ 12 .14 hrs HW=293.42' (Free Discharge) L1=Culvert (Barrel Controls 1.83 cfs@ 3.13 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24 -hr 25 Rainfall=B .80 " Page 12 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=0 .00-20 .00 hrs , dt=0.05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>7 .57 " Tc=10 .0 min CN=93 Runoff=2 .23 cfs 0.192 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>5 .74" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=25 .56 cfs 2.838 af Reach Ditch: Outfall Ditch Avg . Depth=1.41' Max Vel=3 .33 fps lnflow=26.68 cfs 3.031 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=26 .39 cfs 3.021 af Pond 18" CMP: 18" CMP Peak Elev=293 .50' lnflow=2 .23 cfs 0.192 af 18 .0" x 51 .0' Culvert Outflow=2 .23 cfs 0.192 af Total Runoff Area = 6.237 ac Runoff Volume = 3.031 af Average Runoff Depth = 5.83" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} Hyd roCAD® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutio ns LLC Type Ill 24-hr 25 Ra infal/=8 .80 " Page 13 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2.23 cfs@ 12 .14 hrs , Volume= 0.192 af, Depth> 7.57" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 25 Rainfall=8 .80 " Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10 .0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (fUft) (fUsec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 25.56 cfs@ 12 .35 hrs, Volume= 2.838 af, Depth> 5.74" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 25 Rainfall=8 .80" Area (ac ) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (fUsec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area= 6.237 ac, Inflow Depth> 5.83 " for 25 event Inflow = 26 .68 cfs@ 12 .34 hrs , Volume= 3.031 af Outflow = 26 .39 cfs@ 12.42 hrs , Volume= 3.021 af, Atten= 1%, Lag= 4 .9 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max. Velocity= 3.33 fps , Min . Travel Time= 2.7 min Avg . Veloc ity= 1.34 fps , Avg . Travel Time= 6.8 min Peak Storage= 4 ,325 cf@ 12 .37 hrs , Average Dep th at Peak Storage= 1.41 ' Bank-Full Depth= 2.00 ', Capac ity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutions LLC 0 .00' x 2.00' deep channel , n= 0.030 Earth , grassed S ide Slope Z-value= 4 .0 '/' Top Width= 16.00 ' Length= 544 .9' Slope= 0 .0075 '/' Inlet Invert= 291 .99', Outlet Invert= 287 .90 ' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 25 event 0 .192 af Type Ill 24-hr 25 Ra infal/=8.80 " Page 14 10/3/2007 Outflow = Primary = 0.305 ac , Inflow Depth> 7 .57 " 2.23 cfs@ 12 .14 hrs, Volume= 2.23 cfs@ 12 .14 hrs , Volume= 2.23 cfs@ 12 .14 hrs , Volume= 0 .192 af, Atten= 0%, Lag= 0.0 min 0 .192af Routing by Stor-lnd method , T ime Span= 0.00-20 .00 hrs , dt= 0 .05 hrs Peak Elev= 293.50'@ 12.14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69 ' 18.0" x 51.0' long Culvert CMP , square edge headwall , Ke= 0 .500 Outlet Invert= 291 .99' S= 0 .0137 '/' Cc= 0 .900 n= 0 .024 Primary OutFlow Max=2 .19 cfs@ 12 .14 hrs HW=293.50' (Free Discharge) L1=Culvert (Barre l Controls 2 .19 cfs @3.29 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 . 80" Page 15 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0.00-20.00 hrs , dt=0 .05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>8 .52 " Tc=10 .0 min CN=93 Runoff=2 .50 cfs 0.216 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>6 .63" Flow Length=750 ' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=29 .34 cfs 3.278 af Reach Ditch: Outfall Ditch Avg . Depth=1.48' Max Vel=3.44 fps lnflow=30 .59 cfs 3.495 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=30 .26 cfs 3.485 af Pond 18" CMP: 18" CMP Peak Elev=293.56' lnflow=2 .50 cfs 0.216 af 18 .0" x 51 .0' Culvert Outflow=2 .50 cfs 0.216 af Total Runoff Area= 6.237 ac Runoff Volume= 3.495 af Average Runoff Depth= 6.72" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepa red by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutions LLC Type Ill 24-hr 50 Rainfal/=9 .80 " Page 16 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2.50 cfs@ 12 .14 hrs , Volume= 0.216 af, Depth> 8.52" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 50 Ra infall=9 .80" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10 .0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 29 .34 cfs@ 12.35 hrs , Volume= 3.278 af, Depth> 6.63 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 50 Ra infall=9 .80" Area (ac ) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac , Inflow Depth> 6 .72" for 50 event Inflow = 30 .59 cfs@ 12 .34 hrs , Volume= 3.495 af Outflow = 30 .26 cfs @ 12.42 hrs , Volume = 3.485 af, Atten= 1 %, Lag= 4 . 7 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Veloc ity= 3.44 fps , Min . Travel Time= 2.6 min Avg . Velocity= 1.39 fps , Avg . Travel Time= 6.5 min Peak Sto rage= 4 ,796 cf@ 12 .37 hrs , Average Dep t h at Peak Storage= 1.48 ' Bank-Full Depth= 2.00 ', Capac ity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Softwa re Solutions LLC 0.00' x 2 .00' deep channel, n= 0.030 Earth, grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544.9' Slope= 0.0075 'f Inlet Invert= 291 .99', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area= Inflow = for 50 event 0.216 af Type Ill 24-hr 50 Rainfal/=9. 80 " Page 17 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth> 8.52" 2.50 cfs@ 12 .14 hrs , Volume= 2.50 cfs@ 12.14 hrs, Volume= 2.50 cfs@ 12.14 hrs , Volume= 0.216 af, Atten= 0%, Lag= 0.0 min 0.216 af Routing by Stor-lnd method, Time Span= 0.00-20 .00 hrs, cit= 0.05 hrs Peak Elev= 293 .56'@ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292.69' 18.0" x 51.0' long Culvert CMP, square edge headwall, Ke= 0.500 Outlet Invert= 291.99' S= 0.0137 '/' Cc= 0.900 n= 0 .024 Primary OutFlow Max=2.45 cfs@ 12 .14 hrs HW=293 .55' (Free Discharge) L1=Culvert (Barrel Controls 2.45 cfs@ 3.38 fps) Ditch and Culvert Prepared by {enter your company name here} Type 11124-hr 100 Rainfal/=11 .00 " Page 18 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=0.00-20 .00 hrs , dt=0 .05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>9 .66" Tc=10 .0 min CN=93 Runoff=2 .81 cfs 0.245 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>7 .71 " Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=33 .87 cfs 3.813 af Reach Ditch: Outfall Ditch Avg . Depth=1.57' Max Vel=3 .57 fps lnflow=35 .29 cfs 4 .058 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=34 .91 cfs 4.047 af Pond 18" CMP: 18" CMP Peak Elev=293 .62' lnflow=2 .81 cfs 0.245 af 18.0" x 51 .0' Culvert Outflow=2 .81 cfs 0.245 af Total Runoff Area= 6.237 ac Runoff Volume= 4.058 af Average Runoff Depth= 7.81" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24-hr 100 Rainfal/=11 .00" Page 19 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2 .81 cfs@ 12.14 hrs , Volume= 0.245 af, Depth> 9.66" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type 11124-hr 100 Rainfall=11 .00" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) ( cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 33.87 cfs @ 12 .34 hrs, Volume= 3.813 af, Depth> 7.71" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type 111 24-hr 100 Rainfall= 11 . 00" Area (ac) 5.085 0.496 0.351 5.932 5.260 0.671 CN 75 98 93 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Paved roads w/open ditches , 50% imp, HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac , Inflow Depth> 7.81" for 100 event Inflow = 35 .29 cfs@ 12.34 hrs, Volume= 4 .058 af Outflow = 34 .91 cfs@ 12.41 hrs, Volume= 4 .047 af, Atten= 1%, Lag= 4 .6 min Routing by Stor-lnd+ Trans method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 3.57 fps , Min. Travel Time= 2.5 min Avg . Veloc ity= 1.45 fps , Avg . Travel Time= 6.3 min Peak Storage= 5,341 cf@ 12 .37 hrs , Average Depth at Peak Storage= 1.57' Bank-Full Depth= 2 .00', Capacity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC 0.00' x 2.00 ' deep channel , n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99 ', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 100 event 0.245 af Type Ill 24-hr 100 Rainfal/=11 .00" Page 20 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth > 9.66" 2.81 cfs@ 12.14 hrs , Volume= 2.81 cfs@ 12 .14 hrs , Volume= 2 .81 cfs@ 12 .14 hrs , Volume= 0.245 af, Atten= 0%, Lag= 0.0 min 0.245 af Routing by Stor-lnd method , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 293 .62'@ 12.14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=2 .76 cfs@ 12 .14 hrs HW=293 .61' (Free Discharge) L1=Culvert (Barrel Controls 2 .76 cfs@ 3.49 fps) I I MB 11 111 DRAINAGE REPORT FOR DUCK HAVEN SUBDIVISION, PHASE FIVE COLLEGE STATION, TEXAS OCTOBER 2007 M BESI# 1062 -0024 SU BMIITED BY: McCLURE & BROWNE ENGINEERING/SURVEYING , INC. 1008 Woodcreek Drive, Suite 103 •College Station, Texas 77845 (979) 693-3838 • Fax : (979) 693-2554 •Email: McClureBrowne @Verizon.net I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY The Cities of Bryan and College Station both require storm drainage design to follow these Unified 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 "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 applicable . In addition to the requirements for the Executive Summary, this Appendix includes several pages detailing 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 digitized . 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 required 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 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 should also be included . STORMWATER DESIGN GUIDELINES Effective February 2007 Page 1 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY 2. Identification of the size and general nature of the proposed project , including any proposed project phases . This paragraph should also include reference to 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 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 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 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 Page 2 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Rev ised ___ _ 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/Surveyeing, Inc . City: 0 Bryan 1008 Woodcreek Drive, Suite 103 0 College Station College Station, Texas 77845 Date of Submittal : October 8, 2007 Lead Engineer's Name and Contact lnfo.(phone, e-mail, fax): Other: Dane Fuller, E.I.T., ph: (979) 693-3838, danef@McClureBrowne.com, fax : 693-2554 Supporting Engineering I Consulting Firm(s): Other contacts: Jeff Robertson, P .E., ph : (979) 693-3838 , jeffr@McClureBrowne.com, fax : 693-2554 Developer I Owner I Applicant Information Developer I Applicant Name and Address : Phone and e-mail : Smiling Mallard Development, Ltd. (979) 846-4384 3608 East 29th Street tmartinek@clarkewyndham .com Byran, Texas 77802 Property Owner(s) if not Developer I Applicant (&address): Phone and e-mail: Project Identification Development Name: Duck Haven Subdivision Phase Five Is subject property a site project, a single-phase subdivision, or part of a multi-phase subdiv ision? Multi-phase Subdivision If multi-phase, subject property is phase 5 of 9 Legal description of subject property (phase) or Project Area: (see Section II, Paragraph B-3a) B.M. McGREGOR SURVEY, Abstract No . 170 in Brazos County, Texas Millican Royalty and Land Trust to Duck Haven, Ltd. as recorded in Volume 7538, Page 15 (0.R.B .C.) If subject 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 . Phases I, II, and ill have been submitted and approved. Phase III was submitted in October of 2006. General Location of Project Area, or subject property (phase): Approximately 21 ,800 ft. South East of College Station City Limit Line on Wellborn Road. In City Limits? Extraterritorial Jurisdiction (acreage): Bryan : acres . Bryan : College Station : 22 .137 Ac . College Station : acres. Acreage Outside ET J : STORMWATER DESIGN GUIDELINES Effective Fe brua ry 2007 Page 3 of 26 APP END IX. D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 2 -Project Administration Continued (page 2.2) Project Identification (continued) Roadways abutting or within Project Area or subject property : Abutting tracts , platted land , or built developments : Retriever Run Previous and future phas es of Duck Haven and undeveloped land to the West. Named Regulatory Watercourse(s) & Watershed(s): Tributary Basin(s): Boggy Creek Plat Information For Project or Subject Property (or Phase) Preliminary Plat File#: ___ _ Final Plat File#: ______ Date : ____ _ Name: If two plats, second name : Status : Status and Vol/Pg : File#:----- Date : Zoning Information For Project or Subject Property (or Phase) Zoning Type: Case Date ____ _ Zoning Type: Case Date ____ _ Existing or Proposed? Existing Status: Existing or Proposed? Existing Status : Case Code : ____ _ Case Code : ____ _ •.. . . .. .· . . Stormwater Management Planning For Project or Subject Property (or Phase)_ . ' ' "' Planning Conference(s) & Date(s): Participants: Preliminary Report Required? NIA Submittal Date ____ _ Review Date ____ _ Review Comments Addressed? Yes L J No I J In Writing? _N_o __ 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 GUIDELINES Effective February 2007 Page 4 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ 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 O No fil Coordination with Summarize need(s) & actions taken (include contacts & dates): Brazos County Project is in the College Station ETJ, and w ill be approv ed by Brazos County. Needed? Yes D.No ..D. Coordination w ith Summarize need(s) & actions taken (include contacts & dates): TxDOT Needed? Yes L __ I No L / I Coordination with Summarize need(s) & actions taken (include contacts & dates): TAMUS Needed? Yes D.No .D. 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 NIA No lZl_ Yes D US Environmental Protection Agency No D. Yes O NIA Texas Commission on Environmental Quality No lZl Yes .D NIA Brazos River Authority No _Cl_ Yes I :I NIA STORMWATER DESIGN GUIDELINES Effective February 2007 Page 5 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQertv Characteristics I Start (Page 3.1) Nature and Scope of Proposed Work Existing: Land proposed for development currently used , includin g extent of impervious cover? Undeveloped woods and grass comb in ation. Site I I Redevelopment of one platted lot, or two or more adjoining platted lots. Development I_ .. J Building on a single platted lot of undeveloped land . Project I .I Building on two or more platted adjoining lots of undeveloped land. (select all L __ J 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). I _™J Other(explain): Subdivision I .. II Construction of streets and utilities to serve one or more platted lots. Development I 'J 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, linear feet of streets and Nature and drainage easements or ROW. Size of 15 Lots Pro~osed 892 LF of street Project Is any work planned on land that is not platted If yes , explain : or on land for which platting is not pending? Final Plat has been submitted simultaneously with L_J No L" t Yes construction documents . . FEMA Floodplains Is any part of subject property abutting a Named Regulatory Watercourse I No L1 il Yes LJ (Section II, Paragraph B1) or a tributary thereof? Is any part of subject property in floodplain I No rn Yes L .... ii Rate Map area of a FEMA-regulated watercourse? Encroachment( s) Encroachment purpose(s): I u I Building site(s) I :l Road crossing(s) into Flood pla in areas planned? I ... JI Utility crossing(s) Lj Other (explain): No lZ1 Yes I I 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 Effective Fe brua ry 2007 Page 6 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Pro~ertv Characteristics I Continued (Page 3 .2) Hydrologic Attributes of Subject Property (or Phase) Has an earlier hydrolo gic analysis been done for larger area incl ud ing subject property? Yes Reference the study (&date) here , and attach copy if not already in City files. B Part of the detention analysis was performed under the drainage study for Phase III of Duck Haven. The remainder has been analy sed in this report. Is the stormwater management plan for the property in substantial conformance with the earlier study? Yes m No D If not, explain how it differs . No If subject property is not part of multi-phase project , describe stormwater management Cl plan for the property in Part 4 . If prope rty is part of multi-phase project , provide overview of stormwater management plan for Project Area here. In Part 4 describe how plan for subject property will comply therewith . - Do existing topographic features on subject property store or detain runoff? ...cz:l_ No J::::l Yes Describe them (include approximate size , volume , outfall , model, etc). Any known drainage or flooding problems in areas near subject property? J:Z::L No J::L Yes Identify: Based on location of study property in a watershed , is Type 1 Detention (flood control) needed? (see Table B-1 in Appendix B) L~_J Detention is required . L __ J Need must be evaluated . L __ j Detention not required . What decision has been reached? By whom? If the need for Type 1 Detention How was determination made? must be evaluated : STORMWATER DESIGN GUIDELINES Effective Fe bruary 2007 Page 7 of 26 APPE ND IX . D: TECH . DESIGN SUMMARY As Revised ___ _ I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -ProQertv Characteristics I Continued (Page 3.3) Hydrologic Attributes of Subject Property (or Phase) (continued) Does subject property straddle a Watershed or Basin divide? I / ,j No I . ~ 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 II, Paragraph B3-a) Does Project Area (project or phase) receive runoff from upland areas? L.-. ~ No U 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? I '-J No I .... I Yes If yes , describe facilities in easement or ROW: Are chanqes in runoff characteristics subject to chanqe in future? Explain Conveyance Pathways (Section II , Paragraph C2) Must runoff from study propertl drat across loier roperties before reaching a Regulatory Watercourse or tributary? ..... . No . '-Yes Describe length and characteristics of each conveyance pathway(s). Include ownership of property(ies). In the existing characteristics of the site all water sheet flows across the adjacent property owned by John A . Malley & Jennefer B. Todd Vol. 7427, Pg. 198. After development most of the water will be carried to a tributary of Boggy Creek through culverts, ditches, and a detention pond. The rest of the flow will continue to sheet flow across the adjacent property. The proposed conditions will sheet flow less water than was originally flowing across the property and the overall peak flow from the site will be less . STORMWATER DESIGN GUIDELINES Effective February 2007 Page 8 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 3 -Property 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? D plat , or easements t ij instrument. If instrument(s), describe their provisions . exist for any part of pathway(s)? I ,, J No I .. I Yes Pathway Areas Nearby Where runoff must cross lower properties, describe characteristics of abutting lower property(ies). (Existing watercourses? Easement or Consent aquired?) The lower property consists of undeveloped land and will sheet flow in the same manor as it existing conditions to a tributary of Boggy Creek. Describe any built or improved drainage facilities existing near the property (culverts, bridges, lined channels , buried conduit, swales , detention ponds, etc). Drainage f---------------------------------i Facilities Do ~ny of these have t:dryiogic or hydraulic in~uence on proposed stormwater design? L . 1 No ~Yes If yes, explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 9 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t 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? I . A No I' 11 Yes Separate Instrument? I d No D Yes Per Guidelines reference above, how will L I Establishing Easements (Scenario 1) runoff be discharged to neighboring I cA Pre-development Release (Scenario 2) property(ies)? CJ 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# B-2 ) In the existing characteristics of the site all water sheet flows across the adjacent property owned by John A. Malley & Jennefer B . Todd Vol. 7427, Pg. 198 . After development most of the water will be carried to a tributary of Boggy Creek through culverts, ditches, and a detention pond. The rest of the flow will continue to sheet flow across the adj acent property. The proposed conditions will sheet flow Jess water than was originally flowing across the property and the overall peak flow from the site will be less. 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 pTpot8d design been coordinated with owner(s) of receiving property(ies)? c::J No ___ ·_ Yes Explain and provide documentation . STORMWATER DESIGN GUIDELINES Effective February 2007 Page 10 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ 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 Will project result in shifting runoff between Basins or Identify gaining Basins or Watersheds and acres shifting : between 1-W-h_a_t d-e-s-ig_n_a_n_d_m-iti-ga-t-io_n_i_s -u-se_d_t_o_c_o_m_p_e-ns-a-te-fo-r-in-c-re_a_s_e_d_ru_n_o_ff_--1 Watersheds? from gaining basin or watershed? I .t_J No I _] 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. L. ___ n With facility(ies) involving other development projects . 2 . I _J Establishing features to serve overall Project Area . 3 . L LJ 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 (!) (/) c: (!) ffi >- ~ D c: O> 'iii (!) 0 Oz ~n l ~t:l Cl) ~ ~ Are aquatic echosystems proposed? r.-,_4 No L l Yes In which phase(s) or project(s)? Are other Best Management Practices for reducing stormwater pollutants proposed? L _J No QJ Yes Summarize type of BMP and extent of use : A detention pond with initial erosion control. If design of any runoff-handling facilities deviate from provisions of B-CS Technical Specifications, check type facility(ies) and explain in later questions . DI Detention elements D Conduit elements CJ Channel features D Swales I I Ditches I l Inlets CJ Valley gutters D Outfalls D Culvert features I I Bridges Other STORMWATER DESIGN GUIDELINES Effectiv e February 2007 Page 11 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ---- 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)? I I No I ' ,I Yes Identify type and general size and In which phase(s). (1) 18" CMP under Retriever Run and (2) 18" CMPs as outlet structure of detention pond. 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): Detention will reduce overall peak flows of this phase and part of a future phase to lower than existing conditions . Within Or Serving Subject Property (Phase, or Site) If property part of larger Project Area, is dj5igl in substantial conformance with earlier analysis and report for larger area? Lt 11 Yes __ .. J 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? V-notch 2' depth I Surfaces? Grass-lined Steepest side slopes: Usual front slopes : Usual back slopes: 4:1 4 :1 Flow line slopes : least 0 .50% typical 2.00% greatest 3 .50% 4 :1 Typical distance from travelway: (Attached Exhibit# Sht 3 ) 11 ft . Are longitudinal culvert ends in compliance with B-CS Standard Specifications? m Yes D No, then explain : At intersections or otherwise, do valley gutters cross arterial or collector streets? D No I i Yes If yes explain : Are valley gutters proposed to cross any street away from an intersection? I i No I . 'I Yes Explain : (number of locations?) STORMWATER DESIGN GUIDELINES Effective February 2007 Page 12 of26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters j Continued (Page 4.4) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Gutter line slopes : Least Usual Greatest Are inlets recessed on arterial and collector streets? CJ Yes D No If "no'', identify where and why . bvmbv Will inlets capture 10-year djsigf stormflow to prevent flooding of intersections (arterial with arterial or collector)? --==-... Yes L . Jj No If no, explain where and why not. C'-· -0 Q) l/l Will inlet size and placement prevent exceetn ) allowable water spread for 10-year ::J ...... design storm throughout site (or phase)? --=:::_Yes L . J No If no , explain . Q) ....... ....... ::J Cl -0 -c: -0 Sag curves : Are inlets placed at low points? I ;1 Yes D No Are inlets and ro a> .0 ~ ...... ·-conduit sized t::fevent 100-year stormflow from ponding at greater than 24 inches? ::J ....... () c: I -I Yes _. _._No Explain "no" answers . 0 ~ () ~-:= l/l Q) Q) ...... (ii Q) Will 100-yr stormflow be contained in combination of ROW and buried conduit on ...... <( whole length of all streets? I . B Yes I . I No If no, describe where and why . Do designs for curb , gutter, and inlets comply with B-CS Technical Specifications? CJ Yes L .... i No If not, describe difference(s) and attach justification . Are any 12-inch laterals used? L.u! No f -I Yes Identify length(s) and where used . C'-· -0 Pipe runs between system I Typical Q) I/) Longest I/) Q) access points (feet): ::J >- !DI Are junction boxes used at each bend? D Yes I 11 No If not , explain where and why. l/l c: ·-0 ~z 1BI Are downstream soffits at or below upstream soffits? Least amount that hydraulic I/) ~ Yes I I No I ij If not , explain where and why : grade line is below gutter line (system-wide): STORMWATER DESIGN GUIDELINES Effective February 2007 Page 13 of 26 APPENDIX. D: TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Dr ain age Conce~t a nd Des ign Pa ra meters I Continued (Page 4 .5) Stormwate r Ma nagem e nt Conce pt (continued ) Within Or Serving Subject Property (Ph ase, or S ite ) (continued) lil Describe watercourse(s), or system(s) receiv ing system discharge (s) below Q) (i nclude design discharge veloci ty, and angle between converg ing flow lines). (.) c 1) Watercourse (or system ), velocity , and angle? ro iii .!: Q) .... -o "g E 2) Watercourse (or system), velocit y, and angle? :::I .... c 0 ·--c: . 0 .E ~.!: E «> ~ «> E 3) Watercourse (or system), velocity , and ang le? ...... ro ro en en t ~ Q) :::I c 32 0 ·-> ~ e "C a. E ...... For each outfall above , what measures are taken to prevent erosion or scour of .... Q) 0 Q) receiving and all facil ities at juncture? ...... .c C/J en Q) 1) ...... ro .... ro a. 2) Q) en c 3) ~ Are swale( s) situated along property lines between propert ies? L-. J No [Zj Yes Number of instances : 1 For each instance answer the following quest ions. Surface treatments (includinq low-flow flumes if any): Grass-lined -Hydromulch C'-· en (j) ~ en -Q) Flow li ne slopes (minimum and max imum): en >- !Bl 0.75 % -g 0 en Z Outfall characteristics for each (veloc ity , convergent angle , & end treatment). :::I iol Velocity= 3 .0 8 fp s, Enters directly into detenti on pond. en Q) .... W ill 1 DO-year des ign storm runoff be con tained withi n easement(s) or platted drainage -< ROW in all instances? 1.-J Yes I . I No If "no " explain : STORMWAT ER DESIGN GUIDELI N ES Effective Fe b ruary 2007 Page 14 of 26 APPENDIX . D : TE C H . DES IGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .6) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Are roadside ditches used? r::::J No I ' l Yes If so , provide the following : (/) Is 25-year flow contained w ith 6 inches of freeboard throughout? I '.I Yes I . 'I No Q) .r:. .8 Are top of banks separated from road shoulders 2 feet or more? I c i1 Yes i .. m I No i:S Are all ditch sections trapezoidal and at least 1.5 feet deep? L A Yes ,_, __ 1! No Q) -0 For any "no " answers provide location(s) and explain: "iii -0 ro D itches are county standard V-notch at least 2 ft deep . 0 ~ If conduit is beneath a swale , provide the following information (each instance). Instance 1 Describe general location , approximate length : (/) Q) >- D I~ Is 100-year design flow contained in conduiVswale combination? l .... J Yes L J No If "no" explain : c: 0 ro ROW c::::Jl z -Space for 100-year storm flow? Easement c::J Width (/) B l~ Swale Surface type , minimum Conduit Type and size , minimum and maximum ~ and maximum slopes : slopes , design storm : C'-· -0 .!!!. -0 Q) ro c: >. Inlets Describe how conduit is loaded (from streets/storm drains , inlets by type): c: ro c: .r:. ro (.) .... c: .E Q) c: c. .Q 0 Access Describe how maintenance access is provided (to swale , into conduit): ..... -ro 0 E :::J .... -~ .E c: c: Q) -0 E Instance 2 Describe general location , approximate length : Q) ro (/) (/) :::J (/) Q) c: -0 .Q "> Is 100-year design flow contained in conduit/swale combination? L . l Yes L .m!I No 0 -ro .... If "no" explain : c: c. :0 Q) E Q) ROW c::J Easement c::J 0 .r:. Space for 100-year storm flow? Width (.) (/) ~ Q) Swale Surface type, min imum Conduit Type and size , minimum and maximum :::J -ro -0 .... and maximum slopes : slopes , design storm : c: ro 0 c. (.) Q) --(/) ~ c: In lets Describe how conduit is loaded (from streets/storm drains , inlets by type): ro ~ ~ (/) Q) .... -< Access Describe how maintenance access is provided (to swale , into conduit): STORMWATER DESIGN GUIDELINES Effective February 2007 Page 15 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Concept and Design Parameters J Continued (Page 4 . 7) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) If "yes " provide the following information for each instance : Instance 1 Describe general location , approximate length , surfacing : c: '(ij E~ 0 UJ .::: 1§ vi Is 100-year design flow contained in swale? I u! Yes l:::J No Is swale wholly c: ~ within drainage ROW? f . __ Ji Yes L ii No Explain "no" answers: .;01 f---------------- u Access Describe how maintenance access is provide : (!) .... 0 ! 81 f--ln-s-ta_n_c_e_2 __ D_e_sc-r-ib_e_g_e_n_e-ra-l-lo_c_a-ti-on-.-a-p_p_ro_x_im-at_e_l_e_ng_t_h_, s_u_rf_a_c-in_g_: -----~ (!) ·;:: C'-· :::i en .0 c :; (!) o E ..c: (!) -en -~ ~ ~ 0 ro S: ~ 0 5 a:: > -~ :c ::I a. Is 100-year design flow contained in swale? c:::J Yes r::J No Is swale wholly within drainage ROW? l ... _.J Yes I ... H No Explain "no " answers : Access Describe how maintenance access is provided : 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 (deepened, widened, or straightened) or otherwise altered? LJ No I ._.J Yes If only slightly ('--shaped, see "Swales" in this Part. If creating side banks, provide information below. -c c: ~ ro Will design replicate natural channel? L D Yes I i No If "no", for each instance ~ ~ describe section shape & area , flow line slope (min . & max.}, surfaces, and 100-year o._ UJ design flow, and amount of freeboard : 2 lG Instance 1: a; >- i DI -Instance 2: a. -~ ~ 1 El l Instance 3: (.) STORMWATER DESIGN GUIDELINES Effective February 2007 Page 16 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t 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? I J No L . :I Yes If "ves " provide the information below. Will small creeks and their floodplains remain undisturbed? I . i Yes I . 11 No How many disturbance instances? Identify each planned locat ion : For each location , describe length and general type of proposed improvement (including floodplain changes): Fo r each location, describe section shape & area , flow line slope (min . & max.), surfaces , and 100-year design flow . -"O <I> :J c: ~ Watercourses {and tributaries}: Aside from fringe changes , are Regulatory 0 Watercourses proposed to be altered? L .~ No I .. i Yes Expla in below . .2. Ill -Submit full report describing proposed changes to Regulatory Watercourses. Address c: <I> existing and proposed section size and shape, surfaces, alignment, flow line changes , E <I> length affected , and capacity , and provide full documentation of analysis procedures > 0 and data. Is full report submitted? D Yes L dJ No If "no" explain : ..... 0.. E - Qi c: c: co All Proposed Channel Work: For all proposed channel work, provide information ..c: (.) 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? L . :! Yes L__ 11 No If not, identify location and explain : Are ROW I easements sized to contain channe l and required maintenance spa ce ? I i Yes D No If not , identify location(s) and explain : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 17 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Rev ised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4.9) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) How many facilities for subject property project? l For each provide info. below. For each dry-type facilitiy : Facility 1 Facility 2 Acres served & design vo lume + 10% 13.348 Ac . 19 ,976 cf 100-yr volume : free flow & plugged 8.566 af 8 .566 af Design discharge ( 10 yr & 25 yr) 44.33 cfs 56.2 1 Spillway crest at 100-yr WSE? L ii yes I ' I no L J yes I . ,j no Berms 6 i nches above plugged WSE? L _J yes L• i no I . JI yes I . I no Explain any "no" answers: Spillway will be used for lower storms as well as the emergency overflow spillway. The pond is quite rn small and the spillway will allow more than the l 00 year storm to be released without damaging the pond Q) >- Bl For each facility what is 25-yr design Q, and design of outlet structure? 0 Facility 1: 56.21 cfs (two 18" CMPs and a wier structure. z DI Facility 2 : Do outlets and spillways discharge into a public facility in easement or ROW? C'-· Facility 1: C Yes !J'j No Facility 2 : L_J Yes ..c:Jl. No "O Q) If "no " explain : rn 0 It discharges into an existing tributary of Boggy Creek. c. 0 ..... Cl. rn For each , what is velocity of 25-yr design discharge at ou tlet? & at s12illwa}'.? ~ Facility 1: 5.94 fps & 3.63 fps Facility 2: & ·u ro Are energy dissipation measures used? _D_No [Z]Yes Describe type and u.. c: location: D' tl d . · d d ' · th 0 irec y ownstream nprap 1s u se to 1ss1pate e energy. :;::; c: Q) m 0 Q) ..... For each, is spillway surface treatment other than concrete? Yes or no, and describe: <( Facility 1: Grass-lined Facility 2 : For each, what measures are taken to prevent erosion or scour at receiving facility? Facility 1: Rip-Rap channel linings Facility 2 : If berms are used give heights , slopes and surface treatments of sides. Facility 1: 4 ft with 4 : 1 slopes that are grass-lined . Facility 2: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 18 of26 APPENDIX . D : TECH. DESIGN SUMMARY As Revised ___ _ 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 8-CS Specifications? Yes or no , and explain if "no ": (/) Facility 1; y es Q) :;:; =:o--g Q) Facility 2: LL. :::::J c: c:.;:::; 0 c: :;:; 0 c: (.) Q) --For additional facilities prov ide all same information on a separate sheet. Q) 0 Are parking areas to be used for detention? I l J No l m l Yes What is maximum depth due to required design storm? Roadside Ditches: Will culverts serve access driveways at roadside ditches? I .. a No L .. J Yes If "yes ", provide information in next two boxes . Will 25-yr. flow pass without flowing over driveway in all cases? J......L. Yes 1-.J No Without causing flowing or standing water on public roadway? _D._ Yes r:J.. No Designs & materials comply with 8-CS Technical Specifications? J::L Yes J::l No Explain any "no " answers : ('o· (/) C> c: 'iii Are culverts parallel to public roadway alignment? I . 1 Yes ...c:::ll.. No Explain : (/) 0 .... (/) (.) Q) Q) ->-l DI Creeks at Private Drives: Do priva te driveways , drives , or streets cross drainage -w;ys rat serve Above-Project areas or are in public easements/ ROW? ctl "O 0 __.:__.=__No L_.J Yes If "yes " provide information below. Q) z ~8 1 How many instances? Describe location and pro vide information below . Q) Location 1: .:! :::::J (.) Q) Location 2: .... <( Location 3: For each location enter val ue 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? For more instances describe location and same information on separate sheet. STORMWATER DESIGN GUIDELINES Effective February 2007 Page 19 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters j Continued (Page 4 .11) Stormwater Management Concept (continued) Within Or Serving Subject Property (Phase, or Site) (continued) Named Regulato~ Watercourses (&Tributaries}: Are culverts proposed on these facilities? I J 11 No i ,, Yes, then provide full report documenting assumptions, criteria, analysis, computer programs , and sjudylfindings that support proposed design(s). Is report provided? _D_ Yes __ No If "no", explain: -Arterial or Major Collector Streets: Will culverts serve these types of roadways? Qi Q) I J I No I . J Yes How many instances? For each identify the .c (/) Q) location and provide the information below. (/)iii Instance 1: Q) .... >-[ Bl~ Instance 2 : Instance 3 : c: 0 o~ Yes or No for the 100-year design flow: 1 2 3 z E D I~ Headwater WSE 1 foot below lowest curb top? Spread of headwater within ROW or easement? E C'· ro Is velocity limited per conditions (Table C-11 )? (/) (/) g> "C Explain any "no" answer(s): ·-c: ~ ro 0 c: .... 0 0:;:; >. ro ro u :: _Q "C Q) ro ..c Minor Collector or Local Streets: Will culverts serve these types of streets? e 'L: (.) (.) L J No lZ1 Yes How many instances? 1 for each identify the ·-(/) -Q) .g "C location and provide the information below: 0.. Q) ...., 0.. Instance 1: Sta . 1+89.47 ofRetrieverRun ro Z:- "C >. Instance 2 : Q) c: "' ro :::i_ Instance 3 : (/) 0 t:'. (/) Q) Q) For each instance enter value, or "yes" I "no" for: ~ (.) 1 2 3 :::i c: u ro Design yr. headwater WSE 1 ft. below curb top? No Q) u; Yes No .... c: <( ·-100-yr. max. depth at street crown 2 feet or less? Yes No No Q) .... 0 Product of velocity (fps) & depth at crown (ft)= ? E Yes No No .... g Is velocity limited per conditions (Table C-11 )? Yes No No Limit of down stream analysis (feet)? Yes No No Explain any "no " answers: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 20 of 26 APPENDIX . D : TECH . DESIGN SUMMARY As Revised ---- SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t 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? I J J Yes L n I No If not , identify location(s) and intersect angle(s), and justify the design(s): Does drainage way alignment chj"9,8 within or nea~ limi~s of cul~ert and surf~ced approaches thereto? .l2J.. No .... Yes If "yes " tdenttfy locatton(s), describe change(s), and justification : Are flumes or conduit to discharge into culvert barrel(s)? ..rz:L No ...D.. Yes If yes, identify location(s) and provide justification : -Are flumes or conduit to discharge into or near surfaced approaches to culvert ends? "'C Q) rzJ No I . ij Yes If "yes" identify location(s), describe outfall design treatment(s): ::J c :;:; c 0 ~ (/) t Q) ~ ::J Is scour/erosion protection provided to ensure long term stability of culvert structural () components, and surfacing at culvert ends? I J .I Yes .r:::1 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? I JJ Yes L . .J 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? I J 11 No J:l.. Yes If "yes" describe location(s) and mitigation measures: Are all culvert designs and materials in compliance with 8-CS Tech. Specifications? I J ii Yes _D No If not, expla in in Special Design Section of this Part. STORMWATER DESIGN GUIDELINES Effective February 2007 Page 21 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ I I I I I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .13) Stonnwater Management Concept (continued} Within Or Serving Subject Property (Phase, or Site} (continued} Is a bridge included in plans for subject property project? t l No D Yes If "yes" provide the following information . Name(s) and functional classification of the roadway(s)? What drainage way(s) is to be crossed? Ci) Q) C) 'O ·.:::: CD 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? CJ Yes I I No lf "no" explain : Is a Stormwater Provide a general description of planned techniques : ~ Pollution Prevention Silt fencing and hay bales, along with rip rap and headwall protection. The "ffi Plan (SW3P) contractor will be responsible for establishing, implementing, and ::i 0 established for maintaining a SWPPP . .... project construction? Q) -~ Li No Q'J Yes Special Designs -Non-Traditional Methods Are any non-traditional methods (aquatic echosystems, wetland-type detention, natural stream replication, BMPs for water quality, etc .) proposed for any aspect of subject property project? .IZl No .D. 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 ....D_ No lf "no• explain: STORMWATER DESIGN GUIDELINES Effective February 2007 Page 22 of 26 APPENDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage ConceQt and Design Parameters I Continued (Page 4 .14) Stormwater Management Concept (continued) Within Or Serv ing Subject Property (Phase, or Site) (continued) Special Designs -Deviation From B-CS Technical Specifications If any design(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. _D_ Detention elements r::::J.. Drain system elements .c::J.. Channel features I:J.. Culvert features ..D_swales c:1 Ditches .c:I._ Inlets D outfalls r::J. Valley gutters _Cl.. 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? lZ:I._ Yes _r::l. No Briefly summarize the range of applications made of the Rational Formula : What is the size and location of largest Design Drainage Area to which the Rational Formula has been applied? acres Location (or identifier): STORMWATER DESIGN GUIDELINES Effective February 2007 Page 23 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce12t and Design Parameters j Continued (Page 4 .15) Design Parameters (continued) Hydrology (continued) In making determinations for time of concentration, was segment analysis used? D No D 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? _D_ No .D.. 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 Storm drain system for local streets Open channels 2,5 , 10,25,50 100 Swale/buried conduit combination in lieu of channel Swales Roadside ditches and culverts serving them 2,5 ,10,25,50 100 Detention facilities: spillway crest and its outfall 2,5 , 10,25,50 100 Detention facilities : outlet and conveyance structure(s) 2,5, 10 ,25 ,50 100 Detention facilities: volume when outlet plugged 2 ,5,10 25 Culverts serving private drives or streets Culverts serving public roadways Bridges: provide in bridge report. Hydraulics What is the range of design flow velocities as outlined below? Design flow velocities ; Gutters Conduit Culverts Swales Channels Highest (feet per second) 3 .49 3.57 Lowest (feet per second) 2.71 2.61 Streets and Storm Drain Systems Provide the summary information outlined below: Roughness coefficients used : For street gutters : For conduit type(s) Coefficients : STORMWATER DESIGN GUIDELINES Effective February 2007 Page 24 of26 APPENDIX . D: TECH . DESIGN SUMMARY As Revised ___ _ I SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .16) Design Parameters (continued) Hydraulics (continued) Street and Storm Drain Systems (continued) For the following , are assumptions other than allowable per Guidelines? Inlet coefficients? D No I :I Yes Head and friction losses I I No .D Yes Explain any "yes " answer: In conduit is velocity generally increased in the downstream direction? bJ. Yes c:J No Are elevation drops provided at inlets , manholes, and junction boxes? .D Yes .D No Explain any "no" answers: Are hydraulic grade lines calculated and shown for design storm? .Ci Yes I i No For 100-year flow conditions? r:::J Yes LJ No Explain any "no" answers : What tailwater conditions were assumed at outfall point(s) of the storm drain system? Identify each location and explain : Open Channels If a HEC analysis is utilized , does it follow Sec Vl.F .5 .a? D. Yes ..D No Outside of straight sections , is flow regime w ithin limits of sub-critical flow? ..D. Yes ..D. No If "no" list locations and explain : Culverts If plan sheets do not provide the following for each culvert, describe it here. For each design discharge , will operation be outlet (barrel) control or inlet control? Ou tlet Entrance, friction and exit losses: Ke=0.500 Bridges Provide all in bridge report STORMWATER DESIGN GUIDELINES Effective February 2007 Page 25 of 26 APPENDIX. D : TECH . DESIGN SUMMARY As Revised ___ _ SECTION IX APPENDIX D -TECHNICAL DESIGN SUMMARY Part 4 -Drainage Conce~t and Design Parameters I Continued (Page 4 .17) Design Parameters (continued) 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 HydroCAD 8.00 Software Solutions LLC Part 5 -Plans and S~ecifications Requirements for submittal of construction drawings and specifications do not differ due to use of a Technical Des ign Summary Report. See Section Ill , Paragraph C3. Part 6 -Conclusions and Attestation Conclusions .· .. Add any concluding info rmat ion here : No n egati ve downstream affects w ill occur. Attestation Provide attestation to the accuracy and completeness of the foregoing 6 Parts of this Technical Design Summary Drainage Report by signing and sealing below. "This report (plan) for the drainage design of the development named in Part B was prepared by me (or under my supeNision) 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 pr~~~~e improve men ts have been issued or fall under applicable general perm its ."_:-;._~ ............ ~-t-1 '1, I Wi~ (Affix Seal) f .. ~ .. ···· * ·····.~•\ ~ * : ~ * l ~ ~ L-t°jEFFERv'L.'.'fiosERTSON .. ~ Li;1 ~~Prof~s~onal Engineer %·~~.:.:········94745 ··· .. ··~.Jf ,, 0 ·. .· ~ I ~"·~(CENS~?.·" ~_? ~~1tf-S .,, 15'.s ... .. .. .. ~0 - State of Texas PE No. \\\\~ONA\. e .... ----:\,,,,, ......... STORMWATER DESIGN GUIDELINES Effect ive February 2007 Page 26 of 26 APPE NDIX. D : TECH. DESIGN SUMMARY As Revised ___ _ SUMMARY Duck Haven, Phase V Drainage Report MEES!# I 062-0024 This storm drainage report is intended to analyze the drainage infrastructure proposed for the development of the Duck Haven Subdivision, Phase Five. The existing and proposed conditions are included to show how the design will achieve the desired drainage objectives of Brazos County and the City of College Station. GENERAL INFORMATION Area encompassed by this phase : Anticipated land use: Anticipated number of lots: 19 .96 acres Single family residential 15 lots Notes on surrounding development: The area surrounding the site is partially developed with existing phases of Duck Haven to the South, undeveloped phases of Duck Haven to the East, and undeveloped land to the North and West.. FLOOD HAZARD INFORMATION FEMA FIRM Map#: 48041C0215 C Effective Date: July 2, 1992 Comments : No portion of the site is shown to be within the 100-year floodplain, so it is not currently regulated under the National Flood Insurance Program. Applicable Exhibits : A-I -Excerpt ofFEMA FIRM DESCRIPTION OF DRAINAGE SYSTEMS Primary System: Secondary System: The site is wooded with dense undergrowth. Phase Five slopes toward an existing tributary in the North comer of the site, and sheet flows offsite onto undeveloped land . The tributary flows to Boggy Creek. Boggy Creek flows to the Brazos River. The remainder of Phase V was considered during the construction of Phase ill. Runoff from the residential lots will be captured in roadside ditches where it will be conveyed a proposed detention pond and released to a natural stream at pre-development flow rates. Corrugated metal pipes will be used as culverts at road crossings. SECONDARY STORM DRAIN DESIGN Design Storm: Design Methodology Hydrology: Software Model: Time of Concentration: Curve Numbers: Hydraulics: Software Model: Manning 's N: Applicable Ex hibits: Drainage Report C-1 C-2 C-3 10-yr Return Period (Ditches) 100-yr Return Period (Culverts) SCS Method HydroCAD 8.0 minimum = 10 min. 75 -Undeveloped area 98 -Paved areas Manning 's Equation HydroCAD 8.0 0.024 (corrugated metal) Existing Condition Runoff Summary from HydroCAD Proposed Condition Runoff Summary from HydroCAD Ditch and Culvert Summary from HydroCAD Duck Haven, Phase V I I I DETENTION REQUIREMENTS Summary : A proposed pond on the property will prov ide stormwater detention for this phase of the subdivision along with a portion of a future phase. A proposed pond built during the construction of Phase III accounts for Drainage Area 2E, as shown in exhibit B-1. The pond captures the stormwater from Drainage Area lP, as shown in exhibit B-2. The outlet from the pond are two 18" corrugated metal pipes and an overflow weir set at elevation 289 '. The invert of the culverts are set at 286.96 '. Drainage Area 2P , as shown in exhibit B-2 , bypasses the pond and exits the site as sheet flow in the same manor as the existing condition. The following is a summary of the total runoff rates off the site to Study Point 1 as shown on Exhibit "B-2" and elevations in the pond and upstream of the proposed culvert: Event Existing Proposed W .S.E . Conditions Conditions (Pond) 5 y ear 58.68 cfs 55.57 cfs 290.19 ' 10 year 76.47 cfs 73.46 cfs 290.42' 25 year 97 .57 cfs 94.75 cfs 290.64' 50 year 112.75 cfs 109.79 cfs 290.78' 100 year 131.03 cfs 127.74 cfs 290.92' Applicable Ex hibits: B-1 Drainage Area Map -Existing Condition Drainage Area Map -Proposed Condition B-2 C-1 C-2 Existing Condition Runoff Summary from HydroCAD Proposed Condition Runoff Summary from HydroCAD EROSION AND SEDIMENTATION CONTROLS Control M easures: SWPPP : Drainage Report Silt fence Hydro-mulch seeding Rock Filter Dams Straw Bale Barriers Construction entrance/exit The contractor shall be responsible for establishing and maintaining the SWPPP in accordance with TCEQ requirements. Duck Haven , Phase V I I I I I I I I I I I I EXHIBIT C-1 EXISTING CONDITION RUNOFF SUMMARY (HYDROCAD OUTPUT) Drainage Report Duck Haven, Phase V I I I 1E I 1E I I Drainage Diagram for Ex-Conditions Prepared by {enter your company name here} 10/~/2007 HydroCAD® 8 .00 sin 004323 © 2006 HydroCAD Software Solutions LLC I I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Area Listing (all nodes) Area (acres) CN Descript ion (subcats) 23 .720 75 (1E) 23 .720 Page 2 10/3/2007 I I I I I I I I I I I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 2 Ra infal/=4 .50" Page 3 10/3/2007 HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Softwa re Solut ions LLC Time span=S .00-20 .00 hrs , dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1E: 1E Runoff Area=23 .720 ac Runoff Depth>1 .88" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=34 .50 cfs 3.722 af Total Runoff Area= 23.720 ac Runoff Volume= 3.722 af Average Runoff Depth= 1.88" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I I Ex-Conditions Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 2 Rainfal/=4 .50 " Page4 10/3/2007 Runoff = 34 .50 cfs@ 12 .36 hrs , Volume= 3.722 af, Depth> 1.88" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.1 750 0.0136 0.50 Lag/CN Method, I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfa/1=6.20" Page 5 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth>3 .20" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=58 .68 cfs 6 .325 af Total Runoff Area= 23.720 ac Runoff Volume= 6.325 af Average Runoff Depth= 3.20" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 5 Rainfal/=6.20" Page 6 10/3/2007 Runoff = 58 .68 cfs@ 12 .35 hrs , Volume= 6.325 af, Depth> 3.20" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6.20" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) ( cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40" Page 7 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs, dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1E: 1E Runoff Area=23 .720 ac Runoff Depth>4 .1 9" Flow Length=750' Slope=0 .0136 '/' Tc=25.1 min CN=75 Runoff=76.47 cfs 8.282 af Total Runoff Area= 23.720 ac Runoff Volume= 8.282 af Average Runoff Depth= 4.19" 100.00% Pervious Area = 23. 720 ac 0.00% Impervious Area = 0.000 ac I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type 11124-hr 10 Rainfal/=7 .40" Page 8 10/3/2007 Runoff = 76.47 cfs@ 12 .35 hrs , Volume= 8.282 af, Depth> 4.19" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40" Area (ac) CN Description 23.720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfal/=8.80" Page 9 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs , dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth>5 .38" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=97 .57 cfs 10 .644 af Total Runoff Area= 23.720 ac Runoff Volume= 10.644 af Average Runoff Depth= 5.38" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 25 Rainfal/=8 . 80" Page 10 10/3/2007 Runoff = 97 .57 cfs@ 12 .34 hrs , Volume= 10 .644 af , Depth> 5.38" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 25 Rainfall=8 .80" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (fUsec) (cfs) 25 .1 750 0.0136 0.50 Lag/CN Method, I I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 11 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth>6.26" Flow Length=750' Slope=0.0136 '/' Tc=25.1 min CN=75 Runoff=112.75 cfs 12.368 af Total Runoff Area = 23. 720 ac Runoff Volume = 12.368 af Average Runoff Depth = 6.26" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I I I I I I I I I I I I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 50 Rainfal/=9 . 80" Page 12 10/3/2007 Runoff = 112 .75 cfs@ 12.34 hrs , Volume= 12 .368 af, Depth> 6 .26" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN Description 23.720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .1 750 0.0136 0 .50 Lag/CN Method, I I I I I I I I Ex-Conditions Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 13 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs , dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1 E: 1 E Runoff Area=23 . 720 ac Runoff Depth> 7.32" Flow Length=750' Slope=0 .0136 '/' Tc=25 .1 min CN=75 Runoff=131 .03 cfs 14.468 af Total Runoff Area= 23.720 ac Runoff Volume= 14.468 af Average Runoff Depth = 7.32" 100.00% Pervious Area= 23.720 ac 0.00% Impervious Area= 0.000 ac I I I I Ex-Conditions Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 E: 1 E Type Ill 24-hr 100 Rainfal/=11 .00" Page 14 10/3/2007 Runoff = 131 .03 cfs@ 12 .34 hrs, Volume= 14.468 af, Depth> 7.32" Runoff by SCS TR-20 method , UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type 11124-hr 100 Rainfall=11 .00" Area (ac) CN Description 23 .720 75 23 .720 Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) ( cfs) 25.1 750 0.0136 0.50 Lag/CN Method, I I I I I I I I I I EXHIBIT C-2 DEVELOPED CONDITION RUNOFF SUMMARY (HYDROCAD OUTPUT) I Drainage Report Duck Haven, Phase V I Sheet Flow 0 ·te G ~ea to Pond ~ iosed Pond ~ Total Proposed Flow Drainage Diagram for Proposed Prepared by {enter your company name here} 10/3/2007 HydroCAD® 8 .00 sin 004323 © 2006 HydroCAD Software Solutions LLC I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 Hyd roCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcats) 20 .740 75 Undeveloped (1P ,2P) Page2 10/3/2007 2.108 98 Impervious Area of Lots (3000 sf house footprint , 200 'x12' driveway) (1P,2P) 0.872 98 Street Area (1 P,2P) 23 .720 Proposed Prepared by {enter your company name here} Type Ill 24-hr 2 Rainfal/=4 .50" Page 3 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs, dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Star-Ind+ Trans method -Pond routing by Star-Ind method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>2 .12" Flow Length=750 ' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=21 .67 cfs 2 .354 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10.372 ac Runoff Depth>2 .13" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=22 .08 cfs 1.837 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=289 .69' Storage=8 ,907 cf lnflow=21 .67 cfs 2 .354 af Outflow=19.45 cfs 2.349 af lnflow=32 .55 cfs 4 .186 af Pr imary=32 .55 cfs 4 .186 af Total Runoff Area= 23.720 ac Runoff Volume= 4.191 af Average Runoff Depth= 2.12" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I I I I Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Type 11124-hr 2 Rainfal/=4 .50" Page4 10/3/2007 Runoff = 21 .67 cfs@ 12 .36 hrs, Volume= 2 .354 af, Depth> 2.12" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20.00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4.50" Area (ac) CN 11 .576 75 1.116 98 0.656 98 13 .348 78 11 .576 1.772 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 22 .08 cfs@ 12 .18 hrs , Volume= 1.837 af, Depth> 2.13" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN 9.164 75 0.992 98 0.216 98 10 .372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 2.12" 21 .67 cfs@ 12 .36 hrs, Volume= 19.45 cfs @ 12.49 hrs, Volume= 19.45 cfs @ 12.49 hrs, Volume= for 2 event 2 .354 af 2.349 af, Atten= 10%, Lag= 7.5 min 2 .349 af Routing by Ster-Ind method, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 289 .69' @ 12.49 hrs Surf.Area= 6,681 sf Storage= 8,907 cf Plug-Flow detention time= 6.1 min calculated for 2 .341 af (99% of inflow) Center-of-Mass det. time= 5.3 min ( 815 .9 -810 .6) I I I Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Volume Invert Avail .Storage Storage Description Type Ill 24-hr 2 Rainfal/=4 .50" Page 5 10/3/2007 #1 287 .00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287.00 288 .00 289 .00 290.00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2,725 4 ,620 7,628 11 ,759 Inc.Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum .Store (cubic-feet) 0 1,363 5,035 11 , 159 20 ,853 Invert Outlet Devices 287.00' 18.0" x 50.0' long Culvert X 2.00 CMP, end-section conforming to fill , Ke= 0.500 Outlet Invert= 286 .75' S= 0.0050 '/' Cc= 0.900 n= 0.025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2.00 Width (feet) 0.00 8.00 16.00 Primary OutFlow Max=19 .38 cfs@ 12.49 hrs HW=289 .68' (Free Discharge) t1=Culvert (Barrel Controls 15.36 cfs @4.35 fps) 2=Custom Weir/Orifice (Weir Controls 4 .02 cfs @ 2.16 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 2.12 " for 2 event Inflow = 32 .55 cfs @ 12.20 hrs, Volume= 4 .186 af Primary = 32 .55 cfs @ 12 .20 hrs , Volume= 4 .186 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfal/=6.20" Page6 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=S .00-20 .00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Ster-Ind+ Trans method -Pond routing by Ster-Ind method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>3.49" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=35 .57 cfs 3.886 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>3 .51" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=36 .22 cfs 3.032 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290.19' Storage=12 ,674 cf lnflow=35 .57 cfs 3.886 af Outflow=34 .03 cfs 3.879 af lnflow=55 .57 cfs 6.911 af Primary=55 .57 cfs 6.911 af Total Runoff Area= 23.720 ac Runoff Volume= 6.917 af Average Runoff Depth= 3.50" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Type Ill 24-hr 5 Rainfal/=6.20" Page? 10/3/2007 Runoff = 35 .57 cfs @ 12 .35 hrs , Volume= 3.886 af, Depth> 3.49" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20.00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) 11 .576 1.116 0.656 13 .348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 36 .22 cfs @ 12 .18 hrs, Volume= 3.032 af, Depth> 3.51" Runoff by SCS TR-20 method , UH=SCS, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) 9.164 0.992 0.216 10 .372 9.164 1.208 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow A rea = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 3.49" 35.57 cfs@ 12 .35 hrs , Volume= 34.03 cfs@ 12.43 hrs , Volume= 34 .03 cfs@ 12.43 hrs, Volume= for 5 event 3.886 af 3.879 af, Atten= 4%, Lag= 4 .5 min 3.879 af Routing by Stor-lnd method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 290 .19 '@ 12.43 hrs Surf.Area= 8,408 sf Storage= 12,674 cf Plug-Flow detention time= 6.0 min calculated for 3.879 af (100% of inflow) Center-of-Mass det. time= 5.3 min ( 804 .5 -799 .3 ) Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solu ti ons LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 5 Rainfal/=6.20" Page 8 10/3/2007 #1 287 .00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290 .00 291.00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2 ,725 4 ,620 7 ,628 11 ,759 Inc.Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum.Store (cubic-feet) 0 1,363 5 ,035 11 , 159 20 ,853 Invert Outlet Devices 287.00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0 .500 Outlet Invert= 286 .75' S= 0 .0050 '/' Cc= 0 .900 n= 0 .025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2 .00 Width (feet) 0 .00 8 .00 16 .00 Primary OutFlow Max=33 .86 cfs@ 12.43 hrs HW=290.18' (Free Discharge) t1=Culvert (Barrel Controls 17 .85 cfs@ 5 .05 fps) 2=Custom Weir/Orifice (Weir Controls 16 .01 cfs@ 2 .85 fps) Link SP1: Total Proposed Flow Inflow Area= 23 .720 ac, Inflow Depth> 3.50" for 5 event Inflow = 55 .57 cfs@ 12 .34 hrs, Volume= 6 .911 af Primary = 55 .57 cfs@ 12 .34 hrs, Volume= 6 .911 af, Atten= 0%, Lag= 0 .0 min Primary outflow= Inflow, Time Span= 5 .00-20 .00 hrs, dt= 0 .05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40 " Page 9 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S.00-20 .00 hrs, dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Star-Ind+ Trans method -Pond routing by Star-Ind method Subcatchment 1 P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>4 .52" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=45 .65 cfs 5.023 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>4 .53" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=46.46 cfs 3.919 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290.42' Storage=14,771 cf lnflow=45 .65 cfs 5.023 af Outflow=44.33 cfs 5.015 af lnflow=73.46 cfs 8.934 af Primary=73.46 cfs 8.934 af Total Runoff Area= 23.720 ac Runoff Volume= 8.942 af Average Runoff Depth= 4.52" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfal/=7.40" Page 10 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 P: Area to Pond Runoff = 45.65 cfs @ 12 .35 hrs , Volume= 5.023 af, Depth> 4.52" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0 .05 hrs Type Ill 24-hr 10 Rainfall=7.40" Area (ac) CN 11 .576 75 1.116 98 0.656 98 13 .348 78 11 .576 1.772 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 46.46 cfs@ 12.18 hrs , Volume= 3.919 af, Depth> 4 .53" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40" Area (ac) CN 9.164 75 0.992 98 0.216 98 10 .372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 4 .52" 45 .65 cfs @ 12.35 hrs, Volume= 44 .33 cfs@ 12.41 hrs, Volume= 44 .33 cfs@ 12.41 hrs, Volume= for 10 event 5.023 af 5.015 af, Atten= 3%, Lag= 3.7 min 5.015 af Routing by Ster-Ind method, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 290.42'@ 12.41 hrs Surf.Area= 9,382 sf Storage= 14 ,771 cf Plug-Flow detention time= 5.8 min calculated for 4 .998 af (100% of inflow) Center-of-Mass det. time= 5.2 min ( 798 .5 -793 .3 ) Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 10 Rainfal/=7.40" Page 11 10/3/2007 #1 287.00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290.00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2 ,725 4 ,620 7 ,628 11,759 Invert 287 .00' 289 .00' Inc.Store (cubic-feet) 0 1,363 3,673 6 ,124 9,694 Outlet Devices Cum .Store (cubic-feet) 0 1,363 5,035 11 , 159 20,853 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0 .500 Outlet Invert= 286.75' S= 0.0050 '/' Cc= 0 .900 n= 0.025 Corrugated metal Custom Weir/Orifice, C= 2.62 Head (feet) 0 .00 1.00 2 .00 Width (feet) 0 .00 8.00 16.00 Primary OutFlow Max=44.13 cfs@ 12.41 hrs HW=290.42' (Free Discharge) t1=Culvert (Barrel Controls 18 .91 cfs@ 5.35 fps) 2=Custom Weir/Orifice (Weir Controls 25 .21 cfs @ 3.12 fps) Link SP1: Total Proposed Flow Inflow Area= 23 . 720 ac, Inflow Depth > 4 .52" for 1 O event Inflow = 73.46 cfs@ 12 .29 hrs , Volume= 8 .934 af Primary = 73.46 cfs @ 12.29 hrs , Volume= 8 .934 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5 :00-20 .00 hrs , dt= 0.05 hrs Proposed Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfall=B .80" Page 12 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs, dt=0 .05 hrs , 301 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>5 .74" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=57 .51 cfs 6 .386 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10.372 ac Runoff Depth>5 .76" Flow Length=400' Slope=0 .0162 '/' Tc=12.8 min CN=78 Runoff=58 .82 cfs 4 .981 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290.64' Storage=16 ,932 cf lnflow=57.51 cfs 6 .386 af Outflow=56.21 cfs 6 .376 af lnflow=94.75 cfs 11 .358 af Primary=94 .75 cfs 11 .358 af Total Runoff Area = 23. 720 ac Runoff Volume = 11.368 af Average Runoff Depth = 5. 75" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac Proposed Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfal/=8.80 " Page 13 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Subcatchment 1 P: Area to Pond Runoff = 57 .51 cfs@ 12 .35 hrs , Volume= 6.386 af, Depth> 5.74 " Runoff by SCS TR-20 method , UH=SCS, Time Span= 5 .00-20.00 hrs , dt= 0.05 hrs Type Ill 24-hr 25 Ra infall=8 .80" Area (ac) 11 .576 1.116 0.656 13 .348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (tuft) (fUsec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 58 .82 cfs@ 12.17 hrs , Volume= 4 .981 af, Depth> 5.76" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5 .00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 25 Rainfall =8.80" Area (ac) CN 9.164 75 0.992 98 0.2 16 98 10 .372 78 9.164 1.208 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fUft) (fUsec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13.348 ac , Inflow Depth> 5.74" 57 .51 cfs@ 12 .35 hrs , Volume= 56 .21 cfs@ 12.40 hrs, Volume= 56 .21 cfs@ 12.40 hrs , Volume= for 25 event 6.386 af 6.376 af, Atten= 2%, Lag= 3.3 min 6.376 af Routing by Stor-lnd method, Time Span= 5.00-20.00 hrs , dt= 0.05 hrs Peak Elev= 290 .64 '@ 12.40 hrs Surf.Area= 10 ,290 sf Storage= 16 ,932 cf Plug-Flow detention t ime= 5.7 min calculated for 6 .355 af (100 % of inflow) Center-of-Mass det. time= 5.0 min ( 792 .7 -787 .7) Proposed Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 25 Rainfal/=8 .80" Page 14 10/3/2007 #1 287 .00 ' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290 .00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2,725 4,620 7,628 11,759 Inc.Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum .Store (cubic-feet) 0 1,363 5,035 11 , 159 20,853 Invert Outlet Devices 287 .00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill , Ke= 0.500 Outlet Invert= 286 .75' S= 0.0050 ·r Cc= 0.900 n= 0.025 Corrugated metal 289 .00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2.00 Width (feet) 0.00 8.00 16 .00 Primary OutFlow Max=56 .17 cfs@ 12.40 hrs HW=290.64' (Free Discharge) t1=Culvert (Barrel Controls 19.86 cfs@ 5.62 fps) 2=Custom Weir/Orifice (Weir Controls 36 .31 cfs@ 3.36 fps) Link SP1: Total Proposed Flow Inflow Area= 23 .720 ac , Inflow Depth> 5.75" for 25 event Inflow = 94 . 75 cfs @ 12 .26 hrs, Volume= 11 .358 af Primary = 94 .75 cfs@ 12 .26 hrs, Volume= 11 .358 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs I I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 15 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=5 .00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>6 .63" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=66 .01 cfs 7.377 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>6 .66" Flow Length=400' Slope=0 .0162 '/' Tc=12.8 min CN=78 Runoff=67.49 cfs 5.754 af Pond Pond: Proposed Pond Link SP1: Total Proposed Flow Peak Elev=290.78' Storage=18 ,359 cf lnflow=66 .01 cfs 7.377 af Outflow=64.69 cfs 7.366 af lnflow=109.79 cfs 13.119 af Primary=109 .79 cfs 13.119 af Total Runoff Area= 23.720 ac Runoff Volume= 13.131 af Average Runoff Depth= 6.64" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I I I I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 .80" Page 16 10/3/2007 HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Runoff = 66 .01 cfs@ 12 .35 hrs , Volume= 7.377 af, Depth> 6.63" Runoff by SCS TR-20 method, UH=SCS , Time Span= 5 .00-20.00 hrs , dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN 11 .576 75 1.116 98 0.656 98 13 .348 78 11 .576 1.772 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 67.49 cfs@ 12 .17 hrs , Volume= 5.754 af, Depth> 6.66" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) 9.164 0.992 0.216 10 .372 9.164 1.208 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area = Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 6.63 " 66.01 cfs@ 12 .35 hrs , Volume= 64 .69 cfs @ 12.40 hrs, Volume= 64 .69 cfs @ 12.40 hrs , Volume= for 50 event 7.377 af 7.366 af, Atten= 2%, Lag= 3.0 min 7.366 af Routing by Stor-lnd method , Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 290 .78'@ 12.40 hrs Surf.Area= 10,848 sf Storage= 18 ,359 cf Plug-Flow detention time= 5.6 min calculated for 7 .366 af (100% of inflow) Center-of-Mass det. time= 5.0 min ( 789 .2 -784 .3) I I I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 50 Rainfal/=9 .80" Page 17 10/3/2007 #1 287 .00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288.00 289.00 290.00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2,725 4,620 7,628 11 ,759 Inc .Store (cubic-feet) 0 1,363 3,673 6,124 9,694 Cum.Store (cubic-feet) 0 1,363 5,035 11, 159 20 ,853 Invert Outlet Devices 287.00' 18.0" x 50.0' long Culvert X 2.00 CMP, end-section conforming to fill, Ke= 0.500 Outlet Invert= 286 .75' S= 0.0050 'f Cc= 0.900 n= 0 .025 Corrugated metal 289.00' Custom Weir/Orifice, C= 2.62 Head (feet) 0.00 1.00 2 .00 Width (feet) 0.00 8.00 16 .00 Primary OutFlow Max=64 .58 cfs@ 12.40 hrs HW=290 .78' (Free Discharge) t1=Culvert (Barrel Controls 20.41 cfs@ 5.77 fps) 2=Custom Weir/Orifice (Weir Controls 44 .17 cfs@ 3.49 fps) Link SP1: Total Proposed Flow Inflow Area = 23 .720 ac, Inflow Depth> 6.64" for 50 event Inflow = 109.79 cfs@ 12 .25 hrs , Volume= 13 .119 af Primary = 109 .79 cfs@ 12 .25 hrs , Volume= 13 .119 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs I I Proposed Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 18 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=S .00-20 .00 hrs , dt=0 .05 hrs, 301 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment 1P: Area to Pond Runoff Area=13 .348 ac Runoff Depth>7 .71 " Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=76.21 cfs 8.579 af Subcatchment 2P: Sheet Flow Offsite Runoff Area=10 .372 ac Runoff Depth>7 .74" Flow Length=400' Slope=0 .0162 '/' Tc=12 .8 min CN=78 Runoff=77 .88 cfs 6.690 af Pond Pond: Proposed Pond Peak Elev=290 .92' Storage=19 ,976 cf lnflow=76 .21 cfs 8.579 af Outflow=74 .84 cfs 8.566 af Link SP1: Total Proposed Flow lnflow=127 .74 cfs 15 .257 af Primary=127 .74 cfs 15 .257 af Total Runoff Area= 23.720 ac Runoff Volume= 15.270 af Average Runoff Depth= 7.72" 87.44% Pervious Area= 20.740 ac 12.56% Impervious Area= 2.980 ac I Proposed Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 19 10/3/2007 HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Subcatchment 1 P: Area to Pond Runoff = 76 .21 cfs@ 12 .34 hrs, Volume= 8.579 af, Depth> 7.71" Runoff by SCS TR-20 method , UH=SCS , Time Span= 5.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 100 Rainfall=11 .00" Area (ac) 11 .576 1.116 0.656 13 .348 11 .576 1.772 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.6 750 0.0110 0.49 Lag/CN Method, Subcatchment 2P: Sheet Flow Offsite Runoff = 77 .88 cfs@ 12.17 hrs , Volume= 6.690 af, Depth> 7 .74" Runoff by SCS TR-20 method , UH=SCS, Time Span= 5.00-20 .00 hrs, dt= 0.05 hrs Type 11124-hr 100 Rainfall=11 .00" Area (ac) 9.164 0.992 0.216 10 .372 9.164 1.208 CN 75 98 98 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Street Area Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12 .8 400 0.0162 0.52 Lag/CN Method, Inflow Area= Inflow = Outflow = Primary = Pond Pond: Proposed Pond 13 .348 ac, Inflow Depth> 7.71 " 76.21 cfs@ 12 .34 hrs, Volume= 74 .84 cfs@ 12.39 hrs, Volume= 74 .84 cfs@ 12 .39 hrs, Volume= for 100 event 8.579 af 8.566 af, Atten= 2%, Lag= 2.9 min 8.566 af Routing by Stor-lnd method , Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 290 .92'@ 12 .39 hrs Surf.Area= 11,447 sf Storage= 19 ,976 cf Plug-Flow detention time= 5.5 min calculated for 8.566 af (100% of inflow) Center-of-Mass det. time= 4 .9 min ( 785 .6 -780.7) I I Proposed Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutions LLC Volume Invert Avail.Storage Storage Description Type Ill 24-hr 100 Ra infa/1=11 .00" Page 20 10/3/2007 #1 287.00' 20 ,853 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation (feet) 287 .00 288 .00 289 .00 290 .00 291 .00 Device Routing #1 Primary #2 Primary Surf.Area (sq-ft) 0 2 ,725 4 ,620 7 ,628 11,759 Inc .Store (cubic-feet) 0 1,363 3 ,673 6,124 9 ,694 Cum .Store (cubic-feet) 0 1,363 5 ,035 11 , 159 20 ,853 Invert Outlet Devices 287 .00' 18.0" x 50.0' long Culvert X 2.00 CMP , end-section conforming to fill, Ke= 0 .500 Outlet Invert= 286.75' S= 0.0050 '/' Cc= 0 .900 n= 0.025 Corrugated metal 289.00' Custom Weir/Orifice, C= 2.62 Head (feet) 0 .00 1.00 2 .00 Width (feet) 0.00 8.00 16 .00 Primary OutFlow Max=74.61 cfs@ 12.39 hrs HW=290.92' (Free Discharge) t1=Culvert (Barrel Controls 20 .98 cfs@ 5 .94 fps) 2=Custom Weir/Orifice (Weir Controls 53 .63 cfs@ 3.63 fps) Link SP1: Total Proposed Flow Inflow Area = 23 . 720 ac, Inflow Depth > 7. 72" for 100 event Inflow = 127.74 cfs@ 12.25 hrs, Volume= 15.257 af Primary = 127.74 cfs@ 12 .25 hrs , Volume= 15.257 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-20.00 hrs, dt= 0 .05 hrs I Drainage Report EXHIBITC-3 DITCH AND CULVERT SUMMARY (HYDROCAD OUTPUT) Duck Haven , Phase V Cul OD Outfall Ditch Outfall Ditch Drainage Diagram for Ditch and Culvert Prepared by {enter your company name here} 10/3/2007 HydroCAD® 8 .00 sin 004323 © 2006 HydroCAD Software Solutions LLC I I Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcats) 5.085 75 Undeveloped (OD) 0 .656 93 Paved roads w/open ditches , 50% imp, HSG D (Cul .OD) Page2 10/3/2007 0.496 98 Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) (OD) 6.237 Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 2 Rainfal/=4 .50 " Page 3 10/3/2007 HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Time span=0 .00-20.00 hrs , dt=0.05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>3 .51 " Tc=10 .0 min CN=93 Runoff=1 .09 cfs 0.089 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>2 .1 2" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=9 .63 cfs 1.046 af Reach Ditch: Outfall Ditch Avg . Depth=0 .98 ' Max Vel=2 .61 fps lnflow=10 .16 cfs 1.135 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=9 .97 cfs 1.130 af Pond 18" CMP: 18" CMP Peak Elev=293 .24' lnflow=1 .09 cfs 0.089 af 18.0" x 51 .0' Culvert Outflow=1 .09 cfs 0.089 af Total Runoff Area= 6.237 ac Runoff Volume= 1.135 af Average Runoff Depth= 2.18" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac I I I I Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24 -hr 2 Rainfal/=4 .50 " Page4 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 1.09 cfs @ 12 .14 hrs , Volume= 0.089 af, Depth> 3.51 " Runoff by SCS TR-20 method , UH=SCS , T i me Span= 0 .00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10 .0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 9.63 cfs @ 12 .36 hrs , Volume= 1.046 af, Depth> 2.12 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 2 Rainfall=4 .50" Area (ac) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) ( cfs) 25 .6 750 0 .0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area= Inflow = Outflow = 6.237 ac, Inflow Dept h> 2.18" 10 .16 cfs@ 12 .35 hrs , Volume= 9.97 cfs@ 12.46 hrs , Volume= for 2 event 1.135 af 1.130 af, Atten= 2%, Lag= 6.3 min Routing by Stor-lnd+ Trans method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 2.61 fps , Min . Travel Time= 3.5 min Avg . Velocity = 1.05 fps , Avg . Travel Time= 8.6 min Peak Storage= 2,086 cf@ 12.40 hrs , Average Depth at Peak Storage= 0.98 ' Bank-Fu ll Depth= 2.00', Capac ity at Ban k-Full= 67 .29 cfs I Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC 0.00' x 2.00 ' deep channel, n= 0.030 Earth, grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291.99', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 2 event 0.089 af Type Ill 24-hr 2 Rainfal/=4.50" Page 5 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth> 3.51" 1.09 cfs@ 12.14 hrs , Volume= 1.09 cfs@ 12 .14 hrs, Volume= 1.09cfs@ 12 .14hrs, Volume= 0.089 af, Atten= 0%, Lag= 0.0 min 0.089 af Routing by Stor-lnd method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 293 .24'@ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=1 .07 cfs@ 12.14 hrs HW=293 .24' (Free Discharge) "L1=Culvert (Barrel Controls 1.07 cfs@ 2.71 fps) I I I I I Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 5 Rainfal/=6.20" Page 6 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solut ions LLC Time span=0.00-20 .00 hrs , dt=0.05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>5 .11 " Tc=10 .0 min CN=93 Runoff=1 .54 cfs 0.130 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>3.49 " Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=15 .81 cfs 1.727 af Reach Ditch: Outfall Ditch Avg . Depth=1 .18 ' Max Vel=2 .95 fps lnflow=16 .57 cfs 1.857 af Pond 18" CMP: 18" CMP n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=16 .35 cfs 1.850 af Peak Elev=293 .36' lnflow=1 .54 cfs 0.130 af 18 .0" x 51 .0' Culvert Outflow=1 .54 cfs 0.130 af Total Runoff Area= 6.237 ac Runoff Volume= 1.857 af Average Runoff Depth= 3.57" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutions LLC Type Ill 24 -hr 5 Rainfa/!=6.20 " Page 7 10/3/2007 Subcatchment Cul : Area to Culvert Runoff = 1.54 cfs@ 12.14 hrs , Volume= 0.130 af, Depth> 5.11 " Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10 .0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) ( cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 15 .81 cfs@ 12 .35 hrs , Volume= 1. 727 af, Depth> 3.49" Runoff by SCS TR -20 method , UH=SCS , T ime Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 5 Rainfall=6 .20 " Area (ac) 5.085 0.496 0.351 5.932 5.260 0.671 CN 75 98 93 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac , Inflow Depth > 3.57" for 5 event Inflow = 16 .57 cfs@ 12 .35 hrs , Volume= 1.857 af Outflow = 16 .35 cfs@ 12.44 hrs , Volume= 1.850 af, Atten= 1%, Lag= 5.5 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 2.95 fps , Min . Travel T ime= 3.1 min Avg . Veloc ity= 1.18 fps , Avg . Travel Time= 7.7 min Peak Storage= 3,0 18 cf@ 12 .39 hrs , Average Depth at Peak Storage= 1.18' Bank-Fu ll Depth= 2 .00 ', Capac ity at Bank-Full= 67 .29 cfs I Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 sin 004323 © 2006 HydroCAD Softwa re Solut ions LLC 0.00' x 2.00 ' deep channel , n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99', Outlet Invert= 287 .90 ' Pond 18" CMP: 18" CMP Inflow Area = Inflow = for 5 event 0.130 af Type Ill 24-hr 5 Rainfal/=6 .20 " Page 8 10/3/2007 Outflow = Primary = 0.305 ac , Inflow Depth > 5.11" 1.54 cfs@ 12.14 hrs , Volume= 1.54 cfs@ 12 .14 hrs , Volume= 1.54 cfs@ 12 .14 hrs , Volume= 0.130 af, Atten= 0%, Lag= 0.0 min 0.130 af Routing by Ster-Ind method , Time Span= 0.00-20.00 hrs , dt= 0.05 hrs Peak Elev= 293 .36'@ 12 .14 hrs Device Routing #1 Pr imary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=1 .52 cfs@ 12 .14 hrs HW=293 .35' (Free Discharge) t._1=Culvert (Barrel Controls 1.52 cfs@ 2 .98 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 10 Rainfa/1=7.40" Page 9 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0 .00-20 .00 hrs , dt=0 .05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>6.24 " Tc=10 .0 min CN=93 Runoff=1 .86 cfs 0.159 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5.932 ac Runoff Depth>4 .52" Flow Length=750 ' Slope=0.0110 '/' Tc=25 .6 min CN=78 Runoff=20 .29 cfs 2.232 af Reach Ditch: Outfall Ditch Avg . Depth=1 .29' Max Vel=3 .14 fps lnflow=21.21 cfs 2.391 af n=0 .030 L=544.9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=20 .96 cfs 2.383 af Pond 18" CMP: 18" CMP Peak Elev=293.43 ' lnflow=1 .86 cfs 0.159 af 18 .0" x 51 .0' Culvert Outflow=1 .86 cfs 0.159 af Total Runoff Area = 6.237 ac Runoff Volume = 2.391 af Average Runoff Depth = 4.60" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24-hr 10 Rainfall= 7.40" Page 10 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 1.86 cfs@ 12 .14 hrs , Volume= 0.159 af, Depth> 6.24" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40" · Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 20.29 cfs @ 12 .35 hrs , Volume= 2.232 af, Depth> 4 .52" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 10 Rainfall=7.40" Area (ac) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Paved roads w/open ditches , 50% imp, HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac, Inflow Depth> 4.60" for 10 event Inflow = 21 .21 cfs @ 12 .34 hrs , Volume= 2.391 af Outflow = 20 .96 cfs@ 12.43 hrs , Volume= 2.383 af, Atten= 1%, Lag= 5.2 min Routing by Stor-lnd+ Trans method, Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 3.14 fps, Min . Travel Time= 2.9 min Avg . Velocity= 1.26 fps, Avg . Travel Time= 7.2 min Peak Storage= 3,636 cf@ 12 .38 hrs , Average Depth at Peak Storage= 1.29' Bank-Full Depth= 2.00', Capac ity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8 .00 s/n 004323 © 2006 HydroCAD Softwa re Solutions LLC 0.00' x 2 .00' deep channel, n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '!' Top Width= 16 .00 ' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99 ', Outlet Invert= 287 .90 ' Pond 18" CMP: 18" CMP Inflow Area= Inflow = for 10 event 0.159 af Type Ill 24-hr 10 Rainfal/=7.40 " Page 11 10/3/2007 Outflow = Pr imary = 0.305 ac , Inflow Depth > 6.24" 1.86 cfs@ 12.14 hrs , Volume= 1.86 cfs@ 12 .14 hrs , Volume= 1.86 cfs@ 12 .14 hrs , Volume= 0.159 af, Atten= 0%, Lag= 0.0 min 0.159 af Routing by Stor-lnd method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Peak Elev= 293.43' @ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292.69' 18.0" x 51.0' long Culvert CMP , square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0 .024 Primary OutFlow Max=1 .83 cfs@ 12 .14 hrs HW=293.42' (Free Discharge) 'L.1=Culvert (Barrel Controls 1.83 cfs@ 3.13 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 25 Rainfal/=8 .80" Page 12 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0 .00-20.00 hrs , dt=0 .05 hrs, 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Star-Ind+ Trans method -Pond routing by Star-Ind method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>7 .57" Tc=10 .0 min CN=93 Runoff=2 .23 cfs 0.192 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5.932 ac Runoff Depth>5 .74" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=25 .56 cfs 2.838 af Reach Ditch: Outfall Ditch Avg . Depth=1.41' Max Vel=3 .33 fps lnflow=26 .68 cfs 3.031 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=26 .39 cfs 3.021 af Pond 18" CMP: 18" CMP Peak Elev=293 .50' lnflow=2 .23 cfs 0.192 af 18 .0" x 51 .0' Culvert Outflow=2 .23 cfs 0.192 af Total Runoff Area= 6.237 ac Runoff Volume= 3.031 af Average Runoff Depth= 5.83" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac I I I Ditch and Culvert Prepared by {ente r your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Softwa re Solutio ns LLC Type Ill 24-hr 25 Ra infal/=8.80 " Page 13 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2.23 cfs@ 12 .14 hrs , Volume= 0.192 af, Depth> 7.57" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Type 11124-hr 25 Rainfall=8.80" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (fVft) (fVsec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 25 .56 cfs @ 12 .35 hrs , Volume= 2.838 af, Depth> 5.74" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type 11124-hr 25 Rainfall=8.80" Area (ac) 5.085 0.496 0.351 5.932 5.260 0.671 CN 75 98 93 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (fVft) (fVsec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method , Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac, Inflow Depth> 5.83 " for 25 event Inflow = 26 .68 cfs@ 12 .34 hrs , Volume= 3.031 af Outflow = 26 .39 cfs@ 12.42 hrs , Volume= 3.021 af, Atten= 1%, Lag= 4 .9 min Routing by Stor-lnd+ Trans method , Time Span= 0.00 -20 .00 hrs , dt= 0.05 hrs Max. Velocity= 3.33 fps , Min. Travel Time= 2.7 min Avg . Veloc ity= 1.34 fps , Avg . Travel Time= 6.8 min Peak Sto rage= 4 ,325 cf@ 12 .37 hrs , Average Depth at Peak Storage= 1.41 ' Bank-Full Depth= 2.00', Capacity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC 0 .00' x 2.00' deep channel , n= 0.030 Earth, grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291.99', Outlet Invert= 287.90' Pond 18" CMP: 18" CMP Inflow Area= Inflow = for 25 event 0.192 af Type Ill 24-hr 25 Rainfa//=8.80" Page 14 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth> 7.57" 2.23 cfs @ 12 .14 hrs , Volume= 2.23 cfs@ 12.14 hrs, Volume= 2.23 cfs@ 12.14 hrs , Volume= 0.1 92 af, Atten= 0%, Lag= 0.0 min 0.192 af Routing by Stor-lnd method , Time Span= 0.00-20.00 hrs, dt= 0 .05 hrs Peak Elev= 293.50'@ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall, Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=2.19 cfs@ 12 .14 hrs HW=293 .50' (Free Discharge) L1=Culvert (Barrel Controls 2.19 cfs@ 3.29 fps) I I I I I Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 50 Rainfal/=9 . 80" Page 15 10/3/2007 HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0.00-20.00 hrs, dt=0 .05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Star-Ind method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>8 .52" Tc=10 .0 min CN=93 Runoff=2 .50 cfs 0.216 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>6 .63" Flow Length=750' Slope=0 .0110 '/' Tc=25.6 min CN=78 Runoff=29 .34 cfs 3.278 af Reach Ditch: Outfall Ditch Avg . Depth=1.48' Max Vel=3.44 fps lnflow=30 .59 cfs 3.495 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=30 .26 cfs 3.485 af Pond 18" CMP: 18" CMP Peak Elev=293 .56' lnflow=2 .50 cfs 0.216 af 18 .0" x 51.0' Culvert Outflow=2 .50 cfs 0.216 af Total Runoff Area= 6.237 ac Runoff Volume= 3.495 af Average Runoff Depth= 6.72" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 sin 004323 © 2006 HydroCAD Software Solutions LLC Type Ill 24-hr 50 Rainfal/=9 .80" Page 16 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2.50 cfs@ 12 .14 hrs , Volume= 0.216 af, Depth> 8.52" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9 .80" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp , HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 29 .34 cfs@ 12 .35 hrs , Volume= 3.278 af, Depth> 6.63" Runoff by SCS TR-20 method, UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type Ill 24-hr 50 Rainfall=9.80" Area (ac) CN 5.085 75 0.496 98 0.351 93 5.932 78 5.260 0.671 Description Undeveloped Impervious Area of Lots (3000 sf house footprint, 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Im pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25.6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area= 6 .237 ac , Inflow Depth> 6.72" for 50 event Inflow = 30 .59 cfs@ 12.34 hrs, Volume= 3.495 af Outflow = 30 .26 cfs@ 12.42 hrs , Volume= 3.485 af, Atten= 1%, Lag= 4.7 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max. Velocity= 3.44 fps, Min. Travel Time= 2.6 min Avg . Velocity= 1.39 fps , Avg . Travel Time= 6.5 min Peak Storage= 4,796 cf@ 12 .37 hrs , Average Depth at Peak Storage= 1.48' Bank-Full Depth= 2.00', Capacity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC 0.00' x 2 .00' deep channel, n= 0.030 Earth , grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area= Inflow = for 50 event 0.216 af Type Ill 24-hr 50 Rainfal/=9 .80" Page 17 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth> 8.52" 2.50 cfs@ 12 .14 hrs, Volume= 2.50 cfs@ 12.14 hrs, Volume= 2.50 cfs@ 12.14 hrs , Volume= 0.216 af, Atten= 0%, Lag= 0.0 min 0.216 af Routing by Stor-lnd method, Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 293 .56'@ 12.14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary OutFlow Max=2.45 cfs @ 12 .14 hrs HW=293 .55' (Free Discharge) L1=Culvert (Barrel Controls 2.45 cfs@ 3.38 fps) Ditch and Culvert Prepared by {enter your company name here} Type Ill 24-hr 100 Rainfal/=11 .00" Page 18 10/3/2007 HydroCAD ® 8.00 s/n 004323 © 2006 HydroCAD Software Solutions LLC Time span=0 .00-20 .00 hrs , dt=0.05 hrs , 401 points Runoff by SCS TR-20 method , UH=SCS Reach routing by Stor-lnd+ Trans method -Pond routing by Stor-lnd method Subcatchment Cul: Area to Culvert Runoff Area=0 .305 ac Runoff Depth>9 .66" Tc=10 .0 min CN=93 Runoff=2 .81 cfs 0.245 af Subcatchment OD: Area to Outfall Ditch Runoff Area=5 .932 ac Runoff Depth>7 .71" Flow Length=750' Slope=0 .0110 '/' Tc=25 .6 min CN=78 Runoff=33 .87 cfs 3.813 af Reach Ditch: Outfall Ditch Avg . Depth=1 .57' Max Vel=3 .57 fps lnflow=35.29 cfs 4.058 af n=0 .030 L=544 .9' S=0 .0075 '/' Capacity=67 .29 cfs Outflow=34 .91 cfs 4.047 af Pond 18" CMP: 18" CMP Peak Elev=293 .62' lnflow=2 .81 cfs 0.245 af 18.0" x 51 .0' Culvert Outflow=2 .81 cfs 0.245 af Total Runoff Area= 6.237 ac Runoff Volume= 4.058 af Average Runoff Depth= 7.81" 86.79% Pervious Area= 5.413 ac 13.21% Impervious Area= 0.824 ac Ditch and Culvert Prepared by {enter your company name here} HydroCAD ® 8.00 s/n 004323 © 2006 Hyd roCAD Software Solutions LLC Type Ill 24-hr 100 Rainfal/=11 .00" Page 19 10/3/2007 Subcatchment Cul: Area to Culvert Runoff = 2 .81 cfs@ 12 .14 hrs , Volume= 0.245 af, Depth> 9.66" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0 .00-20 .00 hrs, dt= 0.05 hrs Type 111 24 -hr 100 Rainfall= 11 .00" Area (ac) CN Description 0.305 0.152 0.152 Tc Length (min) (feet) 10.0 Runoff = 93 Paved roads w/open ditches , 50% imp, HSG D Pervious Area Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) Direct Entry, Minimum Tc Subcatchment OD: Area to Outfall Ditch 33 .87 cfs@ 12.34 hrs , Volume= 3.813 af, Depth> 7.71" Runoff by SCS TR-20 method , UH=SCS , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Type 111 24-hr 100 Rainfall= 11 . 00" Area (ac) 5.085 0.496 0.351 5.932 5.260 0.671 CN 75 98 93 78 Description Undeveloped Impervious Area of Lots (3000 sf house footprint , 200'x12' driveway) Paved roads w/open ditches , 50% imp , HSG D Weighted Average Pervious Area Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 25 .6 750 0.0110 0.49 Lag/CN Method, Reach Ditch: Outfall Ditch Inflow Area = 6.237 ac , Inflow Depth> 7.81" for 100 event Inflow = 35 .29 cfs @ 12 .34 hrs , Volume= 4 .058 af Outflow = 34 .91 cfs@ 12.41 hrs , Volume= 4 .047 af, Atten= 1%, Lag= 4 .6 min Routing by Stor-lnd+ Trans method , Time Span= 0.00-20 .00 hrs , dt= 0.05 hrs Max . Velocity= 3.57 fps , Min . Travel Time= 2.5 min Avg . Veloc ity= 1.45 fps , Avg . Travel Time= 6.3 min Peak Storage= 5,341 cf@ 12 .37 hrs , Average Depth at Peak Storage= 1.57' Bank-Full Depth= 2.00', Capacity at Bank-Full= 67 .29 cfs Ditch and Culvert Prepared by {enter your company name here} HydroCAD® 8 .00 s/n 004323 © 2006 HydroCAD Software Solutions LLC 0.00 ' x 2 .00 ' deep channel , n= 0.030 Earth, grassed Side Slope Z-value= 4 .0 '/' Top Width= 16 .00' Length= 544 .9' Slope= 0.0075 '/' Inlet Invert= 291 .99', Outlet Invert= 287 .90' Pond 18" CMP: 18" CMP Inflow Area= Inflow = for 100 event 0.245 af Type Ill 24-hr 100 Ra infal/=11 .00" Page 20 10/3/2007 Outflow = Primary = 0.305 ac, Inflow Depth > 9.66" 2.81 cfs@ 12.14 hrs , Volume= 2.81 cfs@ 12.14 hrs , Volume= 2.81 cfs@ 12 .14 hrs , Volume= 0.245 af, Atten= 0%, Lag= 0.0 min 0.245 af Routing by Stor-lnd method , Time Span= 0.00-20 .00 hrs, dt= 0.05 hrs Peak Elev= 293 .62'@ 12 .14 hrs Device Routing #1 Primary Invert Outlet Devices 292 .69' 18.0" x 51.0' long Culvert CMP, square edge headwall , Ke= 0.500 Outlet Invert= 291 .99' S= 0.0137 '/' Cc= 0.900 n= 0.024 Primary Outflow Max=2 .76 cfs@ 12.14 hrs HW=293 .61' (Free Discharge) L1=Culvert (Barrel Controls 2.76 cfs@ 3.49 fps)