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8 Development Permit 662 Mariott Commercial Building
FOR OFFICE USE ONLY CASE NO.: DATE SUBMITIED: ____ _ DEVELOPMENT PERMIT MINIMUM SUBMITTAL REQUIREMENTS __ $100.00 Development Permit Application Fee. Drainage and erosion control plan, with supporting Drainage Report two (2) copies each. Pit\ Notice oflntent (N.O.I.) if disturbed area is greater than 5 acres . zv- LEGAL DESCRIPTION £~ -J ~ lf.. APPLICANT (Primary Contact for the Proj ect): Name (f}/Jf../OT T l/of()t:S I A--C-• Street Address __ J_e.._o_G. __ "-L_·•_,..-+j-~_; _r-_~ ______ City __ c_ .. _l_l~ ....... S,_-~_S_/---'-4~f_"J_o--'-n..-____ _ State -~-)(...___ Zip Code _l,_.?'--"8'-t/'-=~'---E-Mail Address --=------------ Phone Number ~(a~q~"_-_1{~81 ____ Fax Number '2'?~--J3q ~ PROPERTY OWNER'S INFORMATION : Name '5 Cl 'IY'\ L Street Address ------------------City --------------- State Zip Code ______ E-Mail Address Phone Number Fax Number------------------- ARCHITECT OR ENGINEER'S INFORMATION: Name .J Street Address ------------------City ______________ _ State ----Zip Code _____ _ E-Mail Address ------------- Phone Number Fax Number -----------------------------~ Application is hereby made for the following development specific site/waterway alterations: ACKNOWLEDGMENTS: -· -- I , 1-ctr-ry fY/ IJ e ( O'( I 'design engineer/owner, he reby acknowledge or affirm that: 7 The information and conclusions contained in the above plans and supporting docum ents comply with the current requirements of the City of College Station , Texas City Code, Chapter 13 and its associated Drainage Policy and Design Standards. As a condition of approval of this pem1it application, I agree to construct the improvements proposed in this application 1ccording to these documents and the requirements of Chapter 13 of the College Station City Code. df:;F l of2 \ • ... •. •\ ... I,.,. .• •, CERTIFIC TIONS: (for proposed alterations within designated flood hazard areas .) A . I, certify that any nonresidential structure on or proposed to be on this site as part of this applicat ion is esignated to preve nt damage to the structure or its contents as a result of flooding from the 100 year storm . Engineer Date B. I, certify that the finished floor elevation of the lowest floor, including any basement, of any residential structure, oposed as part of this application is at or above the base flood elevation established in the latest Federal Insurance Administrafon Fl~~rd Study and maps , as amended. Engineer ~ ~ \§! ~ ~',",Y <$0\{ C. I, -----------~-#-tfy th alterations or devel opme nt covered by this permit shall not diminish the flood-carrying capacity of the waterway adj01 ing or crossing this permitted site and that such alterations or development are consistent with requirements of the City of College Station City Code, Chapter 13 concerning encroachments of floodways and of floodway fringes . \ Engineer Date \ D . I, do certify that the proposed 1erations do not raise the leve l of the 100 year flood abo ve elevation established in the latest Federal Insurance Administratio Flood Hazard Study . Engineer Date Conditions or comments as part of approval :--------------------'---------- In accordance with Chapter 13 of the Code of Ordinances of th e City of College Station, measures shall be taken to insure that debris from construction , erosion, and sedimentation shall not be deposited in city streets, or existing drainage faciliti es . All developm ent shall be in accordance with th e plans and specifications submitted to and approved by the City Engineer for the above named proj ec t. All of the applicable codes and ordinances of the City of College Station shall apply . DEVELOPMENT PERMIT DPERMIT.DOC 3/24/99 2 of2 Drainage Report FOR ED.bLPIEISS BUSINESS CENTER LOTS 2 AND 3, BLOCK 4 Prepared By: McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Tex as 77802 ( 409) 776 -6700 Drainage Report FOR EDELWEISS BUSINESS CENTER LOTS 2 AND 3, BLOCK 4 VICINITY MAP NTS JULY 1999 REVISED : JULY 30, 1999 Prepared By. McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Texas 77802 ( 409) 776-6700 CERTIFICATION I, Steven C. Franks, Registered Professional Engineer No . 83551 , State of Texas , certify that this report for the drainage design for EDEL WEISS BUSINESS CENTER, Lots 2 and 3 , Block Four, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof 7-13-11 Steven C. Franks, P.E. No. 83551 STORM DRAINAGE REPORT EDEL WEISS BUSINESS CENTER, LOTS 2 AND 3, BLOCK 4 TABLE OF CONTENTS EDEL WEISS BUSINESS CENTER, LOTS 2 AND 3 BLOCK 4 PROPOSED OFFICE BUILDINGS INTRODUCTION 1 GENERAL LOCATION AND DESCRIPTION 1 PRIMARY DRAINAGE BASIN DESCRIPTION 1 DRAINAGE DESIGN CRITERIA 2 DRAINAGE FACILITY DESIGN 2 CONCLUSION 3 EXIUBITS FEMA FLOOD INSURANCE RATE MAP EXCERPT "A" DRAINAGE AREA MAP -PROPOSED CONDITIONS "B" RATIONAL FORMULAS DRAINAGE AREA CALCULATIONS "C-1" PROPOSED DETENTION POND ROUTING "D-1" DETENTION POND ROUTING "D-1" ROUTING HYDROGRAPHS "D-2" STAGE-STORAGE CURVE, STAGE-DISCHARGE CURVE "D-3" SfORM DRAINAGE REPORT PAGE ii EDELWEISS BUSINESS CENTER, LOTS 2 AND 3 BLOCK 4 STORM DRAINAGE REPORT EDELWEISS BUSINESS CENTER, LOTS 2 AND 3 BLOCK 4 PROPOSED OFFICE BUILDINGS INTRODUCTION: This storm drainage report is intended to cover the necessary drainage infrastructure for the proposed development site improvements. The parameters used for design and the existing conditions of the on-site area are incorporated to show how the final drainage design will accomplish the desired drainage objectives per the City of College Station Drainage Policy and Design Standards (DPDS .) GENERAL LOCATION AND DESCRIPTION: The proposed office buildings are located in the southern portion of College Station. The project site includes two commercial lots located along Rock Prairie Road between Wellborn Road and Edelweiss Avenue. The lots are platted as Lot 2 and 3, Block Four Edelweiss Business Center. The site is undeveloped and is gently rolling with an average of 1.5% slopes. PRIMARY DRAINAGE BASIN DESCRIPTION: Most of the site drains to the eastern comer of Lot 3 . A small portion of Lot 2 drains to the west. Storm water that drains to the east flows into the North Fork of Lick Creek. Storm water that drains to the west flows into the Bee Creek Tributary B . No portion of the site is within the 100 year flood plain per the Federal Emergency Management Agency Flood Insurance Rate Maps for Brazos County, Texas and Incorporated Areas STORM DRAINAGE REPORT PAGE I EDEL WEISS BUSINESS CENTER. LOTS 2 AND 3 BLOCK 4 effective July 2, 1992 (see Exhibit "A"). DRAINAGE DESIGN CRITERIA: All drainage design is in accordance with the City DPDS . The design rainstorm is the 10 year event . Flow calculations for all drainage areas are based on the Rational Method. The storage volume required for the detention facility is based on a triangular hydrograph (base = 3* Tc) and peak flows computed using the rational method. The required volume shall be determined by the Storage-Routing Analysis. DRAINAGE FACILITY DESIGN: The site will be served by a detention facility located along the property line fronting Rock Prairie Road. The pond will consist of an earthen berm with a low flow channel. A portion of the parking area will also detain water as part of the detention facility . The depth of water in the parking area does not exceed the design requirements of the DPDS . Exhibit "B" shows the proposed drainage areas for the pond. The five drainage areas shown were routed simultaneously through the detention facility. All impervious area created by the buildings and parking lot will be captured and routed to the detention facility. The study point for the project is the outfall device of the proposed detention facility . The outlet device for the pond is 12" wide rectangular concrete flume. The top of the berm elevation is 334.38'. The small portion of Lot 2 that drains to the west remains unchanged with this project. The proposed detention pond routings shown in Exhibit "D-1" and "D-2" demonstrate how the pond will function. Exhibit "D-3" shows a stage storage and stage discharge curve for each pond. STORM DRAINAGE REPORT PAGE2 EDELWEISS BUSIN ESS CENTER, LOTS 2 AND 3 BLOCK 4 - The following summary table shows the peak flow for the Pre-development events and th e peak flows for the Post-development events. Study Point -Pond Outfall Pre-Development Post-Development Pond Surface Elev. Q5 3 cfs 3 cfs 333.66 QIO 3 cfs 3 cfs 333.72 Q25 3 cfs 3 cfs 333.77 Qso 4 cfs 3 cfs 333.83 QIOO 4 cfs 4 cfs 333.88 Top of Berm= 334.3 8 CONCLUSION: The Post-development peak discharge does not exceed the Pre-development peak discharge for the 5, 10, 25, 50 and 100 year event. In all cases, including the 100 year event, storm water is released into public rights of ways or drainage easements and conveyed to the natural outfall. The drainage design for this site meets the requirements as stated in the City of College Station Drainage Policy and Design Standards. STORM DRAINAGE REPORT PAGE3 EDELWEISS BUSINESS CENTER, LOTS 2 AND 3 BLOCK 4 . I . ' ~· : '! ·- ·.• . . .... ~ "O 0 0 0 . 0:: c ... 0 ~ °ij ~ L .· _:_------~---i PRO..ECT SllE Mortkc Drive I 1--_J C) ::J c CJ > < ·• 0 ~ i " 0 . ---- Excerpt From Flood Insurance Rote Map No. 48041COl82C . Effective Dates July 2, 1992 Exhibit •A" --...,-\-/-- --. ---..1 +~-..:-....-......,...----I------1----------- -- ---------------------- ,..... '-'. / !"-,,,,,, ' --··-· .,,_.. ·-+-·-~----·-· '\. '\. '\. --l----··-·· /,r-'-.....1 / ' I ~ --1 I ( ', I " I ) I __.! l Prop. Detention Facility ---I l!:E::==;;a. :::;:. :=:==::.-=/~=====:E===ltli::l:$::::::=!!::--2i:E-E-2-=:-=:-=:-:i::--=====::51 HOCK PRAIRIE ROAD Study Point Pond Outfall I \. I '\._ ----~ --- !==================:::;.---~Cl Ml8A. Jal' PROPOSED COND/TlON EXHIBIT 8 <( ~ w 0 0 0:: w _J _J <( <( c.. <( u. w w 0 j:: I-0 0 0:: _J z <( z <( <( w z w u :3 ~ _J > w ~ _J z <( w <( 0 w <( 0:: 0 <( in I-ow > I-Wz 0:: 0 z 0:: w <( 0 >w 0 I-::::> <( 0:: c.. I-0 _J NO. AC. 0.4 0.55 0.9 ft. Ex 0.83 0.83 0.00 0.00 0.33 257.0 1 0.17 0.03 0.00 0.14 0.14 98.6 2 0.41 0.07 0.00 0.34 0.33 60.0 3 0.07 0.01 0.00 0.06 0.06 18.0 4 0.09 0.02 0.00 0.07 0.07 112.0 5 0.09 0.09 0.00 0.00 0.04 10.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations Edelweiss Business Center, Lots 2 and 3 Block 4 ~ 0 ~ ~ _J u. 0 0 0 _J _J z u. u. >-:3 0:: J: 0:: I-0 w I-w (3 I-0 0:: _J ~o ~ :J 0 I-u w _J ::::> z _J w > <( ::::> <( w ii (/) N IO 0 u. o~ 0 u. > u ::::> ~ 0 !!? 0 0 !: ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs In/Hr 3.5 1.0 1.0 0.8 5.2 10.0 6.33 2.1 7.7 2.6 8.6 1.0 107.0 1.0 1.0 3.3 6.3 7.62 1.1 9.2 1.3 10.2 0.6 218.0 1.7 1.3 3.5 6.7 7.46 2.5 9.0 3.0 10.0 0.2 46.0 1.6 1.7 0.6 1.2 10.85 0.7 12.8 0.8 14.1 1.1 42.0 1.0 0.9 2.9 5.5 7.97 0.6 9.6 0.7 10.7 0.1 140.0 0.7 1.3 1.9 3.7 8.98 0.3 10.7 0.4 11.9 0 IO ..... IO N 0 0 ~ 0 !!? cfs In/Hr cfs In/Hr 2.9 9.9 3.3 11.1 1.4 11. 7 1.6 13.2 3.4 11.4 3.8 12.9 0.8 16.0 1.0 18.0 0.8 12.2 0.9 13.7 0.4 13.5 0.5 15.2 0 IO 0 cfs 3.7 1.8 4.3 1.1 1.0 0.5 0 0 0 0 ..... !: 0 In/Hr cfs 12.5 4.2 14.8 2.0 14.5 4.8 20.1 1.2 15.3 1.1 17.0 0.6 7/1/99 9924dra4.xls Exhibit C-1 D.A. # D.A.# D.A.# D.A. # -a. ~ ~ .. ... N .., .. Qo 1.3 3.0 0.8 Tc 6.3 6.7 1.2 Inc 0.5 Time cfs cfs cfs 0.0 0.0 0.0 0.0 0.5 0.1 0.2 0.3 1.0 0.2 0.4 0.6 1.5 0.3 0.7 0.7 2.0 0.4 0.9 0.5 2.5 0.5 1.1 0.4 3.0 0.6 1.3 0.2 3.5 0.7 1.6 0.0 4.0 0.8 1.8 0.0 4.5 0.9 2.0 0.0 5.0 1.0 2.2 0.0 5.5 1.1 2.5 0.0 6.0 1.2 2.7 0.0 6.5 1.2 2.9 0.0 7.0 1.2 2.9 0.0 7.5 1.1 2.8 0.0 8.0 1.1 2.7 0.0 8.5 1.0 2.6 0.0 9.0 1.0 2.5 0.0 9.5 0.9 2.4 0.0 10.0 0.9 2.3 0.0 10.5 0.8 2.1 0.0 11.0 0.8 2.0 0.0 11.5 0.7 1.9 0.0 12.0 0.7 1.8 0.0 12.5 0.6 1.7 0.0 13.0 0.6 1.6 0.0 13.5 0.5 1.5 0.0 14.0 0.5 1.4 0.0 14.5 0.4 1.2 0.0 15.0 0.<4 1.1 0.0 15.5 0.3 1.0 0.0 16.0 0.3 0.9 0.0 16.5 0.2 0.8 0.0 17.0 0.2 0.7 0.0 17.5 0.1 0.6 0.0 18.0 0.1 0.5 0.0 18.5 0.0 0.3 0.0 19.0 0.0 0.2 0.0 19.5 0.0 0.1 0.0 20.0 0.0 0.0 0.0 20.5 0.0 0.0 0.0 21.0 0.0 0.0 0.0 21.5 0.0 0.0 0.0 22.0 0.0 0.0 0.0 22.5 0.0 0.0 0.0 23.0 0.0 0.0 0.0 23.5 0.0 0.0 0.0 24.0 0.0 0.0 0.0 24.5 0.0 0.0 0.0 25.0 0.0 0.0 0.0 25.5 0.0 0.0 0.0 26.0 0.0 0.0 0.0 26.5 0.0 0.0 0.0 27.0 0.0 0.0 0.0 27.5 0.0 0.0 0.0 28.0 0.0 0.0 0.0 28.5 0.0 0.0 0.0 29.0 0.0 0.0 0.0 29.5 0.0 0.0 0.0 30.0 0.0 0.0 0.0 30.5 0.0 0.0 0.0 31.0 0.0 0.0 0.0 31.5 0.0 0.0 0.0 32.0 0.0 0.0 0.0 PEAK FLOWS 1.2 2.9 0.7 0.7 o. 00 Indicates in ital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING Edelweiss Business Center, Lots 2 and 3 Block 4 D.A. # D.A. # Pond Routlna EVENT,. c 0 ~ w c z ~ i i i ! w r-l ..., N 0.7 0.4 5.5 3.7 cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.75 0.00 0.00 0.1 0.1 0.8 2.26 0.00 0.75 0.1 0.1 1.5 3.50 1.10 2.26 0.2 0.2 2.0 4.27 2.91 4.60 0.2 0.2 2.3 4.84 4.98 7.19 0.3 0.3 2.6 5.40 7.44 9.82 0.4 0.3 2.8 5.97 10.28 12.84 0.4 0.4 3.1 6.59 13.46 16.25 0.5 0.4 3.5 7.28 17.03 20.05 0.6 0.3 3.8 8.01 21.02 24.31 0.6 0.3 4.2 8.73 25.44 29.03 0.7 0.3 4.5 9.36 30.25 34.16 0.6 0.3 4.8 9.84 35.49 39.61 0.6 0.2 5.0 9.94 41.01 45.32 0.6 0.2 4.9 9.62 46.46 50.95 0.6 0.2 4.7 9.18 51.42 56.08 0.5 0.2 4.5 8.74 55.79 60.60 0.5 0.1 4.3 8.30 59.59 64.53 0.5 0.1 4.0 7.86 62.84 67.89 0.4 0.1 3.8 7.42 65.56 70.71 0.4 0.1 3.6 6.98 67.77 72.99 0.4 0.0 3.4 6.55 69.48 74.75 0.3 0.0 3.2 6.13 70.71 76.02 0.3 0.0 3.0 5.75 71.50 76.84 0.3 0.0 2.8 5.36 71.89 77.24 0.2 0.0 2.6 4.97 71.89 77.25 0.2 0.0 2.4 4.59 71.52 76.86 0.2 0.0 2.2 4.20 70.78 76.10 0.2 0.0 2.0 3.81 69.70 74.98 0.1 0.0 1.8 3.43 68.28 73.51 0.1 0.0 1.6 3.04 66.53 71.70 0.1 0.0 1.4 2.65 64.46 69.57 0.0 0.0 1.2 2.26 62.09 67.11 0.0 0.0 1.0 1.91 59.42 64.35 0.0 0.0 0.9 1.58 56.49 61.32 0.0 0.0 0.7 1.25 53.34 58.07 0.0 0.0 0.5 0.93 49.97 5"'.59 0.0 0.0 0.4 0.61 46.41 50.90 0.0 0.0 0.2 0.35 <42.66 47.02 0.0 0.0 0.1 0.13 38.77 43.01 0.0 0.0 0.0 0.01 34.80 38.90 0.0 0.0 0.0 0.00 30.85 34.81 0.0 0.0 0.0 0.00 27.15 30.85 0.0 0.0 0.0 0.00 23.68 27.15 0.0 0.0 0.0 0.00 20.42 23.68 0.0 0.0 0.0 0.00 17.38 20.42 0.0 0.0 0.0 0.00 14.52 17.38 0.0 0.0 0.0 0.00 11.85 1<4.52 0.0 0.0 0.0 0.00 9.35 11.85 0.0 0.0 0.0 0.00 7.00 9.35 0.0 0.0 0.0 0.00 4.80 7.00 0.0 0.0 0.0 0.00 3.07 4.80 0.0 0.0 0.0 0.00 1.73 3.07 0.0 0.0 0.0 0.00 0.69 1.73 0.0 0.0 0.0 0.00 0.00 0.69 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.0 0.0 0.0 0.00 0.00 0.00 0.4 5 5 0 w l5 "' .,, _J ~ ~ li ~~ ~II.. II.. w cfs ft cfs 0.00 332.7 0.00 0.41 333.0 0.41 0.58 333.1 0.58 0.84 333.2 0.84 1.10 333.3 1.10 1.19 333.3 1.19 1.28 333.3 1.28 1.39 333.3 1.39 1.51 333.4 1.51 1.65 333.4 1.65 1.80 333.4 1.80 1.96 333.5 1.96 2.06 333.5 2.06 2.15 333.5 2.15 2.25 333.6 2.25 2.33 333.6 2.33 2.41 333.6 2.41 2.47 333.6 2.47 2.53 333.6 2.53 2.57 333.6 2.57 2.61 333.6 2.61 2.64 333.7 2.64 2.66 333.7 2.66 2.67 333.7 2.67 2.68 333.7 2.68 2.68 333.7 2.68 2.67 333.7 2.67 2.66 333.7 2.66 2.64 333.7 2.64 2.62 333.6 2.62 2.59 333.6 2.59 2.55 333.6 2.55 2.51 333.6 2.51 2.<47 333.6 2.47 2.<42 333.6 2.<42 2.36 333.6 2.36 2.31 333.6 2.31 2.25 333.6 2.25 2.18 333.5 2.18 2.12 333.5 2.12 2.05 333.5 2.05 1.98 333.5 1.98 1.85 333.5 1.85 1.7<4 333.4 1.74 1.63 333.4 1.63 1.52 333.4 1.52 1.43 333.3 1.43 1.34 333.3 1.34 1.25 333.3 1.25 1.17 333.3 1.17 1.10 333.3 1.10 0.87 333.2 0.87 0.67 333.1 0.67 0.52 333.0 0.52 0.40 333.0 0.40 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 3 333.66 3 D.A. # )( w 2.6 10.0 cfs 0.0 0.1 0.3 0.4 0.5 0.6 0.8 0.9 1.0 1.1 1.3 1.4 1.5 1.7 1.8 1.9 2.0 2.2 2.3 2.4 2.6 2.5 2.4 2.4 2.3 2.2 2.2 2.1 2.0 2.0 1.9 1.9 1.8 1.7 1.7 1.6 1.5 1.5 1.4 1.3 1.3 1.2 1.1 1.1 1.0 1.0 0.9 0.8 0.8 0.7 0.6 0.6 0.5 0.4 0.4 0.3 0.3 0.2 0.1 0.1 0.0 0.0 0.0 0.0 0.0 3 I 9924dl'IM.xls ElChlbit 0-1 _J ~ ~"' e::J cfs 0.00 0.13 0.26 0.38 0.51 0.64 0.77 0.89 1.02 1.15 1.28 1.40 1.53 1.66 1.79 1.92 2.04 2.17 2.30 2.43 2.55 2.49 2.43 2.36 2.30 2.23 2.17 2.11 2.04 1.96 1.92 1.85 1.79 1.72 1.66 1.60 1.53 1.47 1.40 1.34 1.28 1.21 1.15 1.09 1.02 0.96 0.89 0.83 0.77 0.70 0.64 0.57 0.51 0.45 0.38 0.32 0.26 0.19 0.13 0.06 0.00 0.00 0.00 0.00 0.00 3 EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING Edelweiss Business Center, Lots 2 and 3 Block 4 D.A.# D.A. # D.A.# D.A. # D.A.# D.A. # Pond Routing EVENT" c .g_ D i t ~ c iii i i ~ i ~ .. t ~ tn .... N ..., ... "' N N Qp 1.4 3.4 0.8 0.8 0.4 Tc 6.3 6.7 1.2 5.5 3.7 Inc 0.5 Time Cfs cfs cfs cfs cfs cfs cfs cfs 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.84 0.00 0.00 0.5 0.1 0.3 0.3 0.1 0.1 0.8 2.51 0.00 0.84 1.0 0.2 0.5 0.7 0.1 0.1 1.7 3.90 1.30 2.51 1.5 0.3 0.8 0.7 0.2 0.2 2.2 4.76 3.37 5.19 2.0 0.4 1.0 0.6 0.3 0.2 2.5 5.39 5.86 8.13 2.5 0.6 1.3 0.4 0.3 0.3 2.9 6.03 8.79 11.26 3.0 0.7 1.5 0.2 0.4 0.4 3.2 6.66 12.12 14.82 3.5 0.8 1.8 0.1 0.5 0.4 3.5 7.35 15.84 18.79 4.0 0.9 2.0 0.0 0.5 0.4 3.9 8.13 19.98 23.20 4.5 1.0 2.3 0.0 0.6 0.4 4.3 8.94 24.58 28.11 5.0 1.1 2.5 0.0 0.7 0.3 4.7 9.75 29.64 33.52 5.5 1.2 2.8 0.0 0.8 0.3 5.1 10.45 35.27 39.39 6.0 1.3 3.0 0.0 0.7 0.3 5.4 10.99 41.40 45.73 6.5 1.4 3.3 0.0 0.7 0.3 5.6 11.10 47.85 52.39 7.0 1.3 3.3 0.0 0.7 0.2 5.5 10.75 54.19 58.95 7.5 1.3 3.1 0.0 0.6 0.2 5.3 10.26 59.99 64.94 8.0 1.2 3.0 0.0 0.6 0.2 5.0 9.76 65.11 70.24 8.5 1.2 2.9 0.0 0.6 0.1 4.6 9.27 69.60 74.BB 9.0 1.1 2.8 0.0 0.5 0.1 4.5 8.78 73.46 76.87 9.5 1.1 2.6 0.0 0.5 0.1 4.3 6.29 76.73 82.25 10.0 1.0 2.5 0.0 0.5 0.1 4.0 7.80 79.41 85.02 10.5 0.9 2.4 0.0 0.4 0.0 3.8 7.31 61.52 87.21 11.0 0.9 2.3 0.0 0.4 0.0 3.5 6.85 63.10 68.84 11.5 0.6 2.1 0.0 0.3 0.0 3.3 6.42 84.18 89.95 12.0 0.6 2.0 0.0 0.3 0.0 3.1 5.99 84.80 90.60 12.5 0.7 1.9 0.0 0.3 0.0 2.9 5.56 84.99 90.79 13.0 0.7 1.8 0.0 0.2 0.0 2.7 5.12 84.75 90.55 13.5 0.6 1.6 0.0 0.2 0.0 2.5 4.69 84.10 89.BB 14.0 0.5 1.5 0.0 0.2 0.0 2.2 4.26 63.06 BB.80 14.5 0.5 1.4 0.0 0.1 0.0 2.0 3.63 81.63 67.32 15.0 0.4 1.3 0.0 0.1 0.0 1.6 3.39 79.63 85.46 15.5 0.4 1.1 0.0 0.1 0.0 1.6 2.96 77.67 63.23 16.0 0.3 1.0 0.0 0.0 0.0 1.4 2.53 75.17 60.64 16.5 0.3 0.9 0.0 0.0 0.0 1.2 2.13 72.33 77.70 17.0 0.2 0.8 0.0 0.0 0.0 1.0 1.76 69.19 74.46 17.5 0.2 0.6 0.0 0.0 0.0 0.8 1.40 65.60 70.95 18.0 0.1 0.5 0.0 0.0 0.0 0.6 1.03 62.17 67.20 18.5 0.0 0.4 0.0 0.0 0.0 0.4 0.69 58.31 63.21 19.0 0.0 0.3 0.0 0.0 0.0 0.3 0.39 54.24 58.99 19.5 0.0 0.1 0.0 0.0 0.0 0.1 0.14 50.01 54.63 20.0 0.0 0.0 0.0 0.0 0.0 0.0 0.01 45.69 50.16 20.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 41.37 45.70 21.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 37.19 41.37 21.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 33.15 37.19 22.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 29.30 33.15 22.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 25.69 29.30 23.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 22.31 25.69 23.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 19.15 22.31 24.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 16.16 19.15 24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 13.40 16.18 25.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 10.60 13.40 25.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 8.36 10.60 26.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 6.08 8.36 26.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 4.06 6.08 27.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 2.49 4.06 27.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 1.28 2.49 28.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.34 1.28 28.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.34 29.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 29.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 30.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 31.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 PEAK FLOWS 1.4 3.3 0.7 0.8 0.4 6 o. 00 indicates initat condition 10 D w 15 tn ., .J ~ ~ ~j ~o e ::: o..w cfs ft cfs 0.00 332.7 0.00 0.42 333.0 0.42 0.61 333.1 0.61 0.91 333.2 0.91 1.13 333.3 1.13 1.23 333.3 1.23 1.35 333.3 1.35 1.47 333.4 1.47 1.61 333.4 1.61 1.77 333.4 1.77 1.94 333.5 1.94 2.06 333.5 2.06 2.16 333.5 2.16 2.27 333.6 2.27 2.38 333.6 2.38 2.48 333.6 2.48 2.56 333.6 2.56 2.64 333.7 2.64 2.71 333.7 2.71 2.76 333.7 2.76 2.61 333.7 2.61 2.84 333.7 2.84 2.67 333.7 2.87 2.69 333.7 2.69 2.90 333.7 2.90 2.90 333.7 2.90 2.90 333.7 2.90 2.89 333.7 2.69 2.67 333.7 2.87 2.84 333.7 2.84 2.81 333.7 2.81 2.76 333.7 2.76 2.73 333.7 2.73 2.69 333.7 2.69 2.63 333.7 2.63 2.58 333.6 2.58 2.51 333.6 2.51 2.45 333.6 2.45 2.38 333.6 2.38 2.31 333.6 2.31 2.23 333.6 2.23 2.16 333.5 2.16 2.09 333.5 2.09 2.02 333.5 2.02 1.93 333.5 1.93 1.60 333.4 1.60 1.69 333.4 1.69 1.58 333.4 1.58 1.46 333.4 1.48 1.39 333.3 1.39 1.30 333.3 1.30 1.22 333.3 1.22 1.14 333.3 1.14 1.01 333.2 1.01 0.78 333.1 0.78 0.61 333.1 0.61 0.47 333.0 0.47 0.21 332.9 0.21 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 3 333.72 3 D.A. # )( w 2.9 10.0 els 0.0 0.1 0.3 0.4 0.6 0.7 0.9 1.0 1.1 1.3 1.4 1.6 1.7 1.9 2.0 2.1 2.3 2.4 2.6 2.7 2.9 2.6 2.7 2.7 2.6 2.5 2.4 2.4 2.3 2.2 2.1 2.1 2.0 1.9 1.9 1.6 1.7 1.6 1.6 1.5 1.4 1.4 1.3 1.2 1.1 1.1 1.0 0.9 0.9 0.6 0.7 0.6 0.6 0.5 0.4 0.4 0.3 0.2 0.1 0.1 0.0 0.0 0.0 0.0 0.0 3 I 9924dra4.xls EJd:llblt D-1 .J ~ ~ tn e~ els 0.00 0.14 0.29 0.43 0.57 0.72 0.86 1.00 1.15 1.29 1.43 1.58 1.72 1.86 2.01 2.15 2.29 2.44 2.58 2.72 2.67 2.79 2.72 2.65 2.58 2.51 2.44 2.36 2.29 2.22 2.15 2.08 2.01 1.93 1.66 1.79 1.72 1.65 1.58 1.50 1.43 1.36 1.29 1.22 1.15 1.07 1.00 0.93 0.86 0.79 0.72 0.64 0.57 0.50 0.43 0.36 0.29 0.21 0.14 0.07 0.00 0.00 0.00 0.00 0.00 3 EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING Edelweiss Business Center, Lots 2 and 3 Block 4 DA# D.A.# DA# DA# DA# DA# Pond Routing EVENT= c = c ~ Q. w !! I c ~ ... ~ + i c ~ .. ~ ;;; II) ... N "' ... "' N N Qo 1.6 3.8 1.0 0.9 0.5 Tc 6.3 6.7 1.2 5.5 3.7 Inc 0.5 Time cfS cfS cfS cfS cfS cfs cfS cfS 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.95 0.00 0.00 0.5 0.1 0.3 0.4 0.1 0.1 1.0 2.66 0.09 0.95 1.0 0.3 0.6 0.8 0.2 0.1 1.9 4.43 1.63 2.95 1.5 0.4 0.9 0.9 0.2 0.2 2.5 5.42 4.05 6.07 2.0 0.5 1.1 0.7 0.3 0.3 2.9 6.14 7.12 9.47 2.5 0.6 1.4 0.5 0.4 0.3 3.3 6.87 10.66 13.26 3.0 0.8 1.7 0.3 0.5 0.4 3.6 7.59 14.67 17.53 3.5 0.9 2.0 0.1 0.5 0.5 4.0 8.38 19.10 22.26 4.0 1.0 2.3 0.0 0.6 0.5 4.4 9.27 23.98 27.48 4.5 1.2 2.6 0.0 0.7 0.4 4.9 10.19 29.40 33.25 5.0 1.3 2.9 0.0 0.8 0.4 5.3 11.11 35.46 39.59 5.5 1.4 3.1 0.0 0.9 0.4 5.8 11.91 42.22 46.57 6.0 1.5 3.4 0.0 0.8 0.3 6.1 12.52 49.53 54.13 6.5 1.6 3.7 0.0 0.8 0.3 6.4 12.65 57.20 62.06 7.0 1.5 3.7 0.0 0.7 0.3 6.3 12.25 64.74 69.85 7.5 1.5 3.6 0.0 0.7 0.2 6.0 11.69 71.64 76.99 8.0 1.4 3.4 0.0 0.7 0.2 5.7 11.13 77.77 83.33 8.5 1.3 3.3 0.0 0.6 0.2 5.4 10.57 83.16 88.90 9.0 1.3 3.2 0.0 0.6 0.1 5.1 10.01 87.83 93.73 9.5 1.2 3.0 0.0 0.6 0.1 4.9 9.45 91.81 97.85 10.0 1.1 2.9 0.0 0.5 0.1 4.6 8.89 95.14 101.27 10.5 1.1 2.7 0.0 0.5 0.0 4.3 8.34 97.83 104.03 11.0 1.0 2.6 0.0 0.4 0.0 4.0 7.81 99.92 106.17 11.5 0.9 2.4 0.0 0.4 0.0 3.8 7.32 101.44 107.73 12.0 0.9 2.3 0.0 0.4 0.0 3.5 6.83 102.45 108.76 12.5 0.8 2.2 0.0 0.3 0.0 3.3 6.33 102.95 109.28 13.0 0.8 2.0 0.0 0.3 0.0 3.0 5.84 102.96 109.29 13.5 0.7 1.9 0.0 0.2 0.0 2.8 5.35 102.49 108.80 14.0 0.6 1.7 0.0 0.2 0.0 2.6 4.86 101.55 107.84 14.5 0.6 1.6 0.0 0.2 0.0 2.3 4.36 100.15 106.41 15.0 0.5 1.4 0.0 0.1 0.0 2.1 3.87 98.30 104.51 15.5 0.4 1.3 0.0 0.1 0.0 1.8 3.38 96.02 102.17 16.0 0.4 1.2 0.0 0.0 0.0 1.6 2.88 93.32 99.40 16.5 0.3 1.0 0.0 0.0 0.0 1.3 2.43 90.22 96.20 17.0 0.2 0.9 0.0 0.0 0.0 1.1 2.01 86.79 92.65 17.5 0.2 0.7 0.0 0.0 0.0 0.9 1.59 83.06 88.79 18.0 0.1 0.6 0.0 0.0 0.0 0.7 1.18 79.05 84.65 18.5 0.0 0.4 0.0 0.0 0.0 0.5 0.78 74.78 80.23 19.0 0.0 0.3 0.0 0.0 0.0 0.3 0.45 70.26 75.56 19.5 0.0 0.2 0.0 0.0 0.0 0.2 0.16 65.56 70.70 20.0 0.0 0.0 0.0 0.0 0.0 0.0 0.01 60.75 65.72 20.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 55.94 60.76 21.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 51.28 55.94 21.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 46.78 51.28 22.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 42.42 46.78 22.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 38.20 42.42 23.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 34.13 38.20 23.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 30.21 34.13 24.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 26.55 30.21 24.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 23.12 26.55 25.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 19.90 23.12 25.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 16.89 19.90 26.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 14.06 16.89 26.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 11.42 14.06 27.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 8.94 11.42 27.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 6.62 8.94 28.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 4.48 6.62 28.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 2.82 4.48 29.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 1.53 2.82 29.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.54 1.53 30.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.54 30.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 31.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 31.5 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 32.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00 0.00 0.00 PEAK FLOWS 1.6 3.7 0.9 0.9 0.5 6 o. 00 indicates in ital condition 25 c w 5 II) ;:; ..JO i5 ~ i ~j e IL a IL W cfS ft cfS 0.00 332.7 0.00 0.43 333.0 0.43 0.66 333.1 0.66 1.01 333.2 1.01 1.18 333.3 1.18 1.30 333.3 1.30 1.43 333.3 1.43 1.58 333.4 1.58 1.75 333.4 1.75 1.93 333.5 1.93 2.06 333.5 2.06 2.18 333.5 2.18 2.30 333.6 2.30 2.43 333.6 2.43 2.56 333.6 2.56 2.67 333.7 2.67 2.78 333.7 2.78 2.87 333.7 2.87 2.95 333.7 2.95 3.02 333.7 3.02 3.07 333.8 3.07 3.10 333.8 3.10 3.12 333.8 3.12 3.14 333.8 3.14 3.16 333.8 3.16 3.16 333.8 3.16 3.16 333.8 3.16 3.16 333.8 3.16 3.14 333.8 3.14 3.13 333.8 3.13 3.10 333.8 3.10 3.08 333.8 3.08 3.04 333.7 3.04 2.99 333.7 2.99 2.93 333.7 2.93 2.87 333.7 2.87 2.80 333.7 2.80 2.73 333.7 2.73 2.65 333.7 2.65 2.57 333.6 2.57 2.49 333.6 2.49 2.41 333.6 2.41 2.33 333.6 2.33 2.25 333.6 2.25 2.18 333.5 2.18 2.11 333.5 2.11 2.04 333.5 2.04 1.96 333.5 1.96 1.83 333.5 1.83 1.72 333.4 1.72 1.61 333.4 1.61 1.51 333.4 1.51 1.41 333.3 1.41 1.32 333.3 1.32 1.24 333.3 1.24 1.16 333.3 1.16 1.07 333.2 1.07 0.83 333.2 0.83 0.64 333.1 0.64 0.50 333.0 0.50 0.33 333.0 0.33 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 0.00 332.7 0.00 3 333.77 3 D.A. # )( w 3.3 10.0 cfs 0.0 0.2 0.3 0.5 0.7 0.8 1.0 1.1 1.3 1.5 1.6 1.8 2.0 2.1 2.3 2.5 2.6 2.8 2.9 3.1 3.3 3.2 3.1 3.0 2.9 2.9 2.8 2.7 2.6 2.5 2.5 2.4 2.3 2.2 2.1 2.0 2.0 1.9 1.8 1.7 1.6 1.6 1.5 1.4 1.3 1.2 1.1 1.1 1.0 0.9 0.8 0.7 0.7 0.6 0.5 0.4 0.3 0.2 0.2 0.1 0.0 0.0 0.0 0.0 0.0 3 I 9924<11'&4.x!s Eichlbit D-1 !i! ..Ji::: i5 II) e~ cfs 0.00 0.16 0.33 0.49 0.65 0.82 0.98 1.15 1.31 1.47 1.64 1.80 1.96 2.13 2.29 2.46 2.62 2.78 2.95 3.11 3.27 3.19 3.11 3.03 2.95 2.66 2.78 2.70 2.62 2.54 2.46 2.37 2.29 2.21 2.13 2.05 1.96 1.88 1.80 1.72 1.64 1.56 1.47 1.39 1.31 1.23 1.15 1.06 0.98 0.90 0.82 0.74 0.65 0.57 0.49 0.41 0.33 0.25 0.16 0.08 0.00 0.00 0.00 0.00 0.00 3 D.A.# D.A.# D.A. # D.A. # ~ e ~ ~ .. .... N .., .. Qp 1.8 4.3 1.1 Tc 6.3 6.7 1.2 Inc 0.5 Time cfs cfS cfS 0.0 0.0 0.0 0.0 0.5 0.1 0.3 0.4 1.0 0.3 0.6 0.9 1.5 0.4 1.0 1.0 2.0 0.6 1.3 0.7 2.5 0.7 1.6 0.5 3.0 0.9 1.9 0.3 3.5 1.0 2.3 0.1 4.0 1.2 2.6 0.0 4.5 1.3 2.9 0.0 5.0 1.4 3.2 0.0 5.5 1.6 3.6 0.0 6.0 1.7 3.9 0.0 6.5 1.8 4.2 0.0 7.0 1.7 4.2 0.0 7.5 1.6 4.0 0.0 8.0 1.6 3.9 0.0 8.5 1.5 3.7 0.0 9.0 1.4 3.6 0.0 9.5 1.4 3.4 0.0 10.0 1.3 3.2 0.0 10.5 1.2 3.1 0.0 11.0 1.1 2.9 0.0 11.5 1.1 2.8 0.0 12.0 1.0 2.6 0.0 12.5 0.9 2.4 0.0 13.0 0.8 2.3 0.0 13.5 0.8 2.1 0.0 14.0 0.7 1.9 0.0 14.5 0.6 1.8 0.0 15.0 0.6 1.6 0.0 15.5 0.5 1.5 0.0 16.0 0.4 1.3 0.0 16.5 0.3 ' 1.1 0.0 17.0 0.3 1.0 0.0 17.5 0.2 0.8 0.0 18.0 0.1 0.7 0.0 18.5 0.1 0.5 0.0 19.0 0.0 0.3 0.0 19.5 0.0 0.2 0.0 20.0 0.0 0.0 0.0 20.5 0.0 0.0 0.0 21.0 0.0 0.0 0.0 21.5 0.0 0.0 0.0 22.0 0.0 0.0 0.0 22.5 0.0 0.0 0.0 23.0 0.0 0.0 0.0 23.5 0.0 0.0 0.0 24.0 0.0 0.0 0.0 24.5 0.0 0.0 0.0 25.0 0.0 0.0 0.0 25.5 0.0 0.0 0.0 26.0 0.0 0.0 0.0 26.5 0.0 0.0 0.0 27.0 0.0 0.0 0.0 27.5 0.0 0.0 0.0 28.0 0.0 0.0 0.0 28.5 0.0 0.0 0.0 29.0 0.0 0.0 0.0 29.5 0.0 0.0 0.0 30.0 0.0 0.0 0.0 30.5 0.0 0.0 0.0 31.0 0.0 0.0 0.0 31.5 0.0 0.0 0.0 32.0 0.0 0.0 0.0 PEAK FLOWS 1.8 4.2 1.0 1.0 . o. 00 indicates inllal condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING Edelweiss Business Center, Lots 2 and 3 Block 4 D.A.# D.A. # Pond RouUng EVENT= c Q ~ w c I ! ~ ! + iii fl) "' .E N N 1.0 0.5 5.5 3.7 cfS cfs cfS cfS cfS 0.0 0.0 0.0 1.07 0.00 0.00 0.1 0.1 1.1 3.22 0.18 1.07 0.2 0.1 2.1 5.00 1.99 3.40 0.3 0.2 2.8 6.11 4.79 6.98 0.4 0.3 3.3 6.92 8.45 10.89 0.4 0.4 3.7 7.74 12.64 15.37 0.5 0.4 4.1 8.56 17.34 20.39 0.6 0.5 4.5 9.45 22.51 25.90 0.7 0.5 5.0 10.46 28.19 31.96 0.8 0.5 5.5 11.49 34.55 38.64 0.9 0.4 6.0 12.53 41.71 46.05 1.0 0.4 6.5 13.44 49.64 54.24 0.9 0.4 6.9 14.13 58.19 63.08 0.9 0.3 7.2 14.28 67.12 72.31 0.8 0.3 7.1 13.82 75.90 81.39 0.8 0.3 6.8 13.19 83.95 89.72 0.8 0.2 6.4 12.56 91.13 97.14 0.7 0.2 6.1 11.93 97.50 103.69 0.7 0.1 5.8 11.30 103.10 109.43 0.6 0.1 5.5 10.67 107.95 114.39 0.6 0.1 5.2 10.03 112.06 118.61 0.5 0.0 4.9 9.40 115.46 122.10 0.5 0.0 4.5 8.81 118.17 124.87 0.4 0.0 4.3 8.26 120.23 126.98 0.4 0.0 4.0 7.70 121.70 128.49 0.4 0.0 3.7 7.15 122.59 129.40 0.3 0.0 3.4 6.59 122.92 129.74 0.3 0.0 3.2 6.03 122.70 129.51 0.2 0.0 2.9 5.48 121.94 128.73 0.2 0.0 2.6 4.92 120.66 127.42 0.1 0.0 2.3 4.37 118.86 125.58 0.1 0.0 2.0 3.81 116.57 123.23 0.0 0.0 1.8 3.26 113.79 120.38 0.0 0.0 1.5 2.74 110.53 117.05 0.0 0.0 1.2 2.27 106.85 113.27 0.0 0.0 1.0 1.80 102.80 109.12 0.0 0.0 0.8 1.33 98.39 104.60 0.0 0.0 0.5 0.88 93.62 99.72 0.0 0.0 0.3 0.51 88.58 94.51 0.0 0.0 0.2 0.18 83.34 89.09 0.0 0.0 0.0 0.01 77.96 83.53 0.0 0.0 0.0 0.00 72.59 77.97 0.0 0.0 0.0 0.00 67.39 72.59 0.0 0.0 0.0 0.00 62.36 67.39 0.0 0.0 0.0 0.00 57.49 62.36 0.0 0.0 0.0 0.00 52.78 57.49 0.0 0.0 0.0 0.00 48.22 52.78 0.0 0.0 0.0 0.00 43.82 48.22 0.0 0.0 0.0 0.00 39.56 43.82 0.0 0.0 0.0 0.00 35.44 39.56 0.0 0.0 0.0 0.00 31.45 35.44 0.0 0.0 0.0 0.00 27.71 31.45 0.0 0.0 0.0 0.00 24.20 27.71 0.0 0.0 0.0 0.00 20.92 24.20 0.0 0.0 0.0 0.00 17.84 20.92 0.0 0.0 0.0 0.00 14.96 17.84 0.0 0.0 0.0 0.00 12.26 14.96 0.0 0.0 0.0 0.00 9.73 12.26 0.0 0.0 0.0 0.00 7.36 9.73 0.0 0.0 0.0 0.00 5.14 7.36 0.0 0.0 0.0 0.00 3.33 5.14 0.0 0.0 0.0 0.00 1.93 3.33 0.0 0.0 0.0 0.00 0.84 1.93 0.0 0.0 0.0 0.00 0.01 0.84 0.0 0.0 0.0 0.00 0.01 0.01 0.5 7 50 0 w l5 fl) ; -' ~ ! ~j j'.!:o e ::: a 11..W cfs ft cfS 0.00 332.7 0.00 0.45 333.0 0.45 0.71 333.1 0.71 1.10 333.3 1.10 1.22 333.3 1.22 1.36 333.3 1.36 1.52 333.4 1.52 1.70 333.4 1.70 1.89 333.5 1.89 2.05 333.5 2.05 2.17 333.5 2.17 2.30 333.6 2.30 2.45 333.6 2.45 2.60 333.6 2.60 2.75 333.7 2.75 2.88 333.7 2.88 3.00 333.7 3.00 3.09 333.8 3.09 3.16 333.8 3.16 3.22 333.8 3.22 3.27 333.8 3.27 3.32 333.8 3.32 3.35 333.8 3.35 3.38 333.8 3.38 3.39 333.8 3.39 3.40 333.8 3.40 3.41 333.8 3.41 3.41 333.8 3.41 3.40 333.8 3.40 3.38 333.8 3.38 3.36 333.8 3.36 3.33 333.8 3.33 3.30 333.8 3.30 3.26 333.8 3.26 3.21 333.8 3.21 3.16 333.8 3.16 3.11 333.8 3.11 3.05 333.8 3.05 2.96 333.7 2.96 2.87 333.7 2.87 2.78 333.7 2.78 2.69 333.7 2.69 2.60 333.6 2.60 2.52 333.6 2.52 2.43 333.6 2.43 2.35 333.6 2.35 2.28 333.6 2.28 2.20 333.6 2.20 2.13 333.5 2.13 2.06 333.5 2.06 1.99 333.5 1.99 1.87 333.5 1.87 1.75 333.4 1.75 1.64 333.4 1.64 1.54 333.4 1.54 1.44 333.3 1.44 1.35 333.3 1.35 1.26 333.3 1.26 1.18 333.3 1.18 1.11 333.3 1.11 0.90 333.2 0.90 0.70 333.1 0.70 0.54 333.1 0.54 0.42 333.0 0.42 0.00 332.7 0.00 3 333.83 3 D.A. # )( w 3.7 10.0 cfs 0.0 0.2 0.4 0.6 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.0 2.2 2.4 2.6 2.8 3.0 3.1 3.3 3.5 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.0 0.0 0.0 4 I 9924dra4.xls Elctltblt D-1 -' ~ j'.!: fl) e~ cfs 0.00 0.19 0.37 0.56 0.74 0.93 1.11 1.30 1.48 1.67 1.85 2.04 2.22 2.41 2.59 2.78 2.96 3.15 3.33 3.52 3.70 3.61 3.52 3.42 3.33 3.24 3.15 3.05 2.96 2.87 2.78 2.68 2.59 2.50 2.41 2.31 2.22 2.13 2.04 1.94 1.85 1.76 1.67 1.57 1.48 1.39 1.30 1.20 1.11 1.02 0.93 0.83 0.74 0.65 0.56 0.46 0.37 0.28 0.19 0.09 0.00 0.00 0.00 0.00 0.00 4 O.A. # O.A.# O.A. # D.A. # -a I! ~ ~ .. .... N .., ... Qp 2.0 4.8 1.2 Tc 6.3 6.7 1.2 Inc 0.5 Time cfs cfs cfs 0.0 0.0 0.0 0.0 0.5 0.2 0.4 0.5 1.0 0.3 0.7 1.0 1.5 0.5 1.1 1.1 2.0 0.6 1.4 0.8 2.5 0.8 1.8 0.6 3.0 1.0 2.2 0.3 3.5 1.1 2.5 0.1 4.0 1.3 2.9 0.0 4.5 1.5 3.3 0.0 5.0 1.6 3.6 0.0 5.5 1.8 4.0 0.0 6.0 1.9 4.3 0.0 6.5 2.0 4.7 0.0 7.0 1.9 4.7 0.0 7.5 1.8 4.5 0.0 8.0 1.8 4.4 0.0 8.5 1.7 4.2 0.0 9.0 1.6 4.0 0.0 9.5 1.5 3.8 0.0 10.0 1.4 3.6 0.0 10.5 1.4 3.5 0.0 11.0 1.3 3.3 0.0 11.5 1.2 3.1 0.0 12.0 1.1 2.9 0.0 12.5 1.0 2.7 0.0 13.0 0.9 2.5 0.0 13.5 0.9 2.4 0.0 14.0 0.8 2.2 0.0 14.5 0.7 2.0 0.0 15.0 0.6 1.8 0.0 15.5 0.5 1.6 0.0 16.0 0.5 1.5 0.0 16.5 0.4 1.3 0.0 17.0 0.3 1.1 0.0 17.5 0.2 0.9 0.0 18.0 0.1 0.7 0.0 18.5 0.1 0.6 0.0 19.0 0.0 0.4 0.0 19.5 0.0 0.2 0.0 20.0 0.0 0.0 0.0 20.5 0.0 0.0 0.0 21.0 0.0 0.0 0.0 21.5 0.0 0.0 0.0 22.0 0.0 0.0 0.0 22.5 0.0 0.0 0.0 23.0 0.0 0.0 0.0 23.5 0.0 0.0 0.0 24.0 0.0 0.0 0.0 24.5 0.0 0.0 0.0 25.0 0.0 0.0 0.0 25.5 0.0 0.0 0.0 26.0 0.0 0.0 0.0 26.5 0.0 0.0 0.0 27.0 0.0 0.0 0.0 27.5 0.0 0.0 0.0 28.0 0.0 0.0 0.0 28.5 0.0 0.0 0.0 29.0 0.0 0.0 0.0 29.5 0.0 0.0 0.0 30.0 0.0 0.0 0.0 30.5 0.0 0.0 0.0 31.0 0.0 0.0 0.0 31.5 0.0 0.0 0.0 32.0 0.0 0.0 0.0 PEAK FLOWS 2.0 4.7 1.1 1.1 0.00 Indicates inttal condttion EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING Edelweiss Business Center, Lots 2 and 3 Block 4 O.A.# O.A. # Pond Routing EVENT= c Q i w c z iii .... ~ + i 8 c I ill "' "' N N 1.1 0.6 5.5 3.7 cfs cfs cfs cfs cfs 0.0 0.0 0.0 1.20 0.00 0.00 0.1 0.1 1.2 3.60 0.28 1.20 0.2 0.2 2.4 5.59 2.36 3.88 0.3 0.3 3.2 6.83 5.69 7.94 0.4 0.3 3.6 7.75 9.97 12.52 0.5 0.4 4.1 8.67 14.85 17.72 0.6 0.5 4.6 9.59 20.28 23.52 0.7 0.6 5.0 10.59 26.22 29.86 0.8 0.6 5.6 11.72 32.78 36.81 0.9 0.5 6.1 12.88 40.22 44.50 1.0 0.5 6.7 14.04 48.53 53.09 1.1 0.5 7.3 15.06 57.69 62.57 1.0 0.4 7.7 15.83 67.54 72.75 1.0 0.4 8.1 16.00 77.81 83.37 0.9 0.3 7.9 15.49 87.91 93.81 0.9 0.3 7.6 14.78 97.22 103.40 0.8 0.3 7.2 14.07 105.61 112.00 0.8 0.2 6.9 13.37 113.10 119.68 0.7 0.2 6.5 12.66 119.73 126.47 0.7 0.1 6.2 11.95 125.51 132.39 0.6 0.1 5.8 11.25 130.46 137.46 0.6 0.0 5.4 10.54 134.60 141.71 0.5 0.0 5.1 9.88 137.95 145.14 0.5 0.0 4.8 9.25 140.58 147.83 0.5 0.0 4.5 8.63 142.53 149.63 0.4 0.0 4.2 8.01 143.83 151.16 0.4 0.0 3.8 7.39 144.49 151.84 0.3 0.0 3.5 6.76 144.52 151.87 0.3 0.0 3.2 6.14 143.95 151.29 0.2 0.0 2.9 5.52 142.78 150.09 0.2 0.0 2.6 4.89 141.03 148.30 0.1 0.0 2.3 4.27 138.72 145.93 0.1 0.0 2.0 3.65 135.86 142.99 0.0 0.0 1.7 3.07 132.45 139.50 0.0 0.0 1.4 2.54 128.57 135.52 0.0 0.0 1.1 2.02 124.25 131.10 0.0 0.0 0.9 1.49 119.54 126.27 0.0 0.0 0.6 0.99 114.42 121.03 0.0 0.0 0.4 0.57 108.94 115.41 0.0 0.0 0.2 0.21 103.18 109.51 0.0 0.0 0.0 O.Q1 97.20 103.38 0.0 0.0 0.0 0.00 91.20 97.21 0.0 0.0 0.0 0.00 85.39 91.20 0.0 0.0 0.0 0.00 79.76 85.39 0.0 0.0 0.0 0.00 74.32 79.76 0.0 0.0 0.0 0.00 69.06 74.32 0.0 0.0 0.0 0.00 63.97 69.06 0.0 0.0 0.0 0.00 59.05 63.97 0.0 0.0 0.0 0.00 54.29 59.05 0.0 0.0 0.0 0.00 49.69 54.29 0.0 0.0 0.0 0.00 45.23 49.69 0.0 0.0 0.0 0.00 40.93 45.23 0.0 0.0 0.0 0.00 36.76 40.93 0.0 0.0 0.0 0.00 32.73 36.76 0.0 0.0 0.0 0.00 28.91 32.73 0.0 0.0 0.0 0.00 25.32 28.91 0.0 0.0 0.0 0.00 21.97 25.32 0.0 0.0 0.0 0.00 18.82 21.97 0.0 0.0 0.0 0.00 15.88 18.82 0.0 0.0 0.0 0.00 13.12 15.88 0.0 0.0 0.0 0.00 10.54 13.12 0.0 0.0 0.0 0.00 8.12 10.54 0.0 0.0 0.0 0.00 5.85 8.12 0.0 0.0 0.0 0.00 3.88 5.85 0.0 0.0 0.0 0.00 2.36 3.88 0.6 8 100 Q w g "' ;:: .J ~ ~ 8~ ~~ ~ 0.. o..w cfs ft cfs 0.00 332.7 0.00 0.46 333.0 0.46 0.76 333.1 0.76 1.13 333.3 1.13 1.27 333.3 1.27 1.44 333.3 1.44 1.62 333.4 1.62 1.82 333.5 1.82 2.02 333.5 2.02 2.14 333.5 2.14 2.28 333.6 2.28 2.44 333.6 2.44 2.60 333.6 2.60 2.78 333.7 2.78 2.95 333.7 2.95 3.09 333.8 3.09 3.19 333.8 3.19 3.29 333.8 3.29 3.37 333.8 3.37 3.44 333.8 3.44 3.50 333.8 3.50 3.55 333.9 3.55 3.59 333.9 3.59 3.63 333.9 3.63 3.65 333.9 3.65 3.67 333.9 3.67 3.67 333.9 3.67 3.68 333.9 3.68 3.67 333.9 3.67 3.65 333.9 3.65 3.63 333.9 3.63 3.60 333.9 3.60 3.57 333.9 3.57 3.53 333.9 3.53 3.48 333.8 3.48 3.42 333.8 3.42 3.37 333.8 3.37 3.30 333.8 3.30 3.24 333.8 3.24 3.16 333.8 3.16 3.09 333.8 3.09 3.01 333.7 3.01 2.91 333.7 2.91 2.81 333.7 2.81 2.72 333.7 2.72 2.63 333.7 2.63 2.54 333.6 2.54 2.46 333.6 2.46 2.38 333.6 2.38 2.30 333.6 2.30 2.23 333.6 2.23 2.15 333.5 2.15 2.08 333.5 2.08 2.01 333.5 2.01 1.91 333.5 1.91 1.79 333.4 1.79 1.68 333.4 1.68 1.57 333.4 1.57 1.47 333.4 1.47 1.38 333.3 1.38 1.29 333.3 1.29 1.21 333.3 1.21 1.13 333.3 1.13 0.98 333.2 0.98 0.76 333.1 0.76 4 333.88 4 O.A.# )( w 4.2 10.0 cfs 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 4.0 4.2 4.1 4.0 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.0 0.0 0.0 4 I 9924dra4.Jds Elchlbtt D-1 .J ~ ~ "' gf.j cfs 0.00 0.21 0.42 0.62 0.83 1.04 1.25 1.46 1.66 1.87 2.08 2.29 2.50 2.70 2.91 3.12 3.33 3.53 3.74 3.95 4.16 4.05 3.95 3.85 3.74 3.64 3.53 3.43 3.33 3.22 3.12 3.02 2.91 2.81 2.70 2.60 2.50 2.39 2.29 2.18 2.08 1.98 1.87 1.77 1.66 1.56 1.46 1.35 1.25 1.14 1.04 0.94 0.83 0.73 0.62 0.52 0.42 0.31 0.21 0.10 0.00 0.00 0.00 0.00 0.00 4 Edelweiss Business Center, Lots 2 and 3 Block 4 5 Year Event Hydrograph 5.00 4 .00 i" ~ 3.00 a 2.00 1.00 o .oo~---~-1--------;;;i:=-------+----...;::,,-"+-------+----'~-~------4 0.00 5.00 10.00 15 .00 20 .00 25.00 30 .00 35.00 Time(min.) ---1 ---2 --3 4 ---5 ---COMBINED ---TOTAL PROPOSED - - -TOT AL EXISTING 7/13/99 Exhibit D-2 Edelweiss Business Center, Lots 2 and 3 Block 4 10 Year Event Hydrograph 6 .00 -..-----------------------------------------. 5 .00 - 4 .00 ~ ~ 3.00 CJ 2 .00 1.00 ....... ............. ............ ........................ ............ ............ ............ .................. ...... ............ .................. ............ ...... o .oo..,c;.---~-+-----.:i::=o-----~---~--~--------l----..l.-..;~-------1 0.00 5 .00 10.00 15.00 20.00 25.00 30.00 35.00 Time(min.) --1 --2 --3 4 --5 --COMBINED --TOTAL PROPOSED -- -TOT AL EXISTING 7/13/99 Exhibit D-2 Edelweiss Business Center, Lots 2 and 3 Block 4 25 Year Event Hydrograph 6 .00 5.00 4 .00 ~ ~ a 2 .00 1.00 0 .00-l""'----"""'"----lf-------1= ...... -----+----~-:i.i.------+------~------1 0.00 5.00 10 .00 15.00 20 .00 25 .00 30 .00 35.00 Time(min.) ---1 --2 ---3 4 5 ---COMBINED ---TOTAL PROPOSED - - -TOTAL EXISTING 7/13/99 Exhibit 0-2 Edelweiss Business Center, Lots 2 and 3 Block 4 50 Year Event Hydrograph 7.00 6 .00 ~ ~ 4 .00 C1 3.00 2 .00 1.00 o .oo-.-:;---~-+------__;;;:::.....-----+----~~~-----+------=::.i-----~ 0.00 5.00 10.00 15 .00 20 .00 25 .00 30 .00 35.00 Time(mln.) ---1 ---2 --3 4 ---5 ---COMBINED ---TOTAL PROPOSED - - -TOT AL EXISTING 7/13/99 Exhibit D-2 i" ~ a Edelweiss Business Center, Lots 2 and 3 Block 4 100 Year Event Hydrograph 8 .00 5 .00 4 .00 3.00 2 .00 1.00 o .oo~---~-1------....:::;:::...... ____ -+----..::::..~~-----+------.::::.+-------1 0.00 5.00 10.00 15.00 20.00 25 .00 30.00 35 .00 Time(min.) ---1 ---2 --3 4 --5 ---COMBINED ---TOTAL PROPOSED - --TOTAL EXISTING 7/13/99 Exhibit D-2 0.180 0 .160 0 .140 0 .120 1 & 0 .100 ~ ~ 0.080 0.060 0 .040 0 .020 Edelweiss Business Center, Lots 2 and 3 Block 4 Stage-Storage Curve o.ooo.l--~~~-6~~~~-6~-=====~:__~~~_.._~~~~~~~~--11--~~~~~~~~-+-~~~~~~~~---1 332 .5 333 333 .5 334 334 .5 335 Elevation (msl) Exhibit D-3 Edelweiss Business Center, Lots 2 and 3 Block 4 Stage-Discharge Curve 0 .000 _J_ ___ _....__,=::::::===:::.----------+-----------+---------f----------1 332 .5 333.0 333 .5 334.0 334 .5 335.0 Elevation (msl) Exhibit D-3 DEVELOPMENT PERMIT PERMIT NO . 662B Mariott Commercial Building FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAP'IER 13 OF THE COLLEGE ST A TION CITY CODE SITE LEGAL DESCRIPTION: Lot 2, Block 4 Edelweiss Subdivision OWNER: Mariott Homes 3202 Longmire College Station, Texas 77845 DRAINAGE BASIN: North Fork of Lick Creek SITE ADDRESS: 207 Rock Prairie Road TYPE OF DEVELOPMENT: THIS PERMIT IS VALID FOR CONSTRUCTION AS PER APPROVED PLANS. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporary erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition, placement and state . The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin. In accordance with Chapter 13 of the Code of Ordinances of the City of College Station , measures shall be taken to insure that debris from construction, erosion , and sedimentation shall not be deposited in city streets, or existing drainage facilities. I hereby grant this permit for development of an area outside the special flood hazard area. All development shall be in ace dance with the plans and specifications submitted to and appro ve d by the City Engineer in the lop nt permit application for the above named project and all of the codes d ordinances of the i liege Station that apply. Administrator/Representative &ftdlN& a&~ Date Owner/ Agent Date Contractor Date DEVELOPMENT PERMIT PERMIT NO. 662 Mariott Commercial Building FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: Lot 2, Block 4 Edelweiss Subdivision OWNER: Mariott Homes 3202 Longmire College Station, Texas 77845 DRAINAGE BASIN: North Fork of Lick Creek SITE ADDRESS: 207 Rock Prairie Road TYPE OF DEVELOPMENT: THIS PERMIT IS VALID FOR ROUGH GRADING IN ACCORDANCE WITH THE APPROVED GRADING PLAN. The Contractor shall take all necessary precautions to prevent silt and debris from leaving the immediate construction site in accordance with the approved erosion control plan as well as the City of College Station Drainage Policy and Design Criteria. The Owner and/or Contractor shall assure that all disturbed areas are sodden and establishment of vegetation occurs prior to removal of any silt fencing or hay bales used for temporaty erosion control. The Owner and/or Contractor shall also insure that any disturbed vegetation be returned to its original condition, placement and state. The Owner and/or Contractor shall be responsible for any damage to adjacent properties, city streets or infrastructure due to heavy machinery and/or equipment as well as erosion, siltation or sedimentation resulting from the permitted work. Any trees required to be protected by ordinance or as part of the landscape plan must be completely fenced before any operations of this permit can begin. Jn accordance with Chapter 13 of the Code of Ordinances of the City of College Station, measures shall be taken to insure that debris from construction, erosion, and sedimentation shall not be deposited in city streets, or existing drainage facilities. I hereby grant this permit for development of an area outside the special flood hazard area. A ll d lopment shall be in accordance with the plans and specifications submitted to and appro ved by the Engineer in the development permit application for the above named project and all of the codes ordinance ~ t ity of College Station that apply. Date 7-2 !,,-'f f Date