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Home My WebLink About44 Development Permit 617 Woodcreek 100 BLKS 29-30Drainage Report FOR WOODCREEK SECTION 10-A AND 10-B / VICINITY MAP NTS JULY, 1998 REVISED SEPTEMBER, 1998 Prepared By: McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Texas 77802 ( 409) 776 -6700 Drainage Report FOR WOODCREEK SECTION 10-A AND 10-B -·- / VICINITY MAP NTS JULY, 1998 REVISED SEPTEMBER, 1998 Prepared By: McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Texas 77802 ( 409) 776-6700 CERTIFICATION I, Joel J . Mitchell, Registered Professional Engineer No . 80649, State of Texas, certify that this report for the drainage design for WOODCREEK, SECTIONS 10-A and 10-B, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof DRAINAGE REPORT WOODCREEK SECTION 10-A AND 10-B INTRODUCTION TABLE OF CONTENTS WOODCREEK SECTION 10-A AND 10-B GENERAL LOCATION AND DESCRIPTION FLOOD HAZARD INFORMATION PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION DRAINAGE DESIGN CRITERIA STORM DRAIN FACILITY DESIGN DETENTION FACILITY DESIGN CONCLUSION EXHIBITS 1 1 1 2 2 2 3 5 FEMA FLOOD INSURANCE RATE MAP EXCERPT "A" DRAINAGE AREA MAP -PROPOSED CONDITIONS "B" RATIONAL FORMULAS DRAINAGE AREA CALCULATIONS "C-1" INLET COMPUTATIONS "C-2" PIPE SIZE CALCULATIONS "C-3" CULVERT ANALYSIS "C-4" PROPOSED DETENTION POND ROUTING (Detention Facility# 1) "D-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #1) "D-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #1) "D-3" PROPOSED DETENTION POND ROUTING (Detention Facility #2) "E-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #2) "E-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #2) "E-3" PROPOSED DETENTION POND ROUTING (Detention Facility #3) "F-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #3) "F-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #3) "F-3" CROSS SECTION MAP "G" WATER SURFACE PROFILE "G-1" WATER SURFACE CROSS SECTIONS AND DATA "G-2" HEC-1 RUN "G-3" DRAINAGE REPORT n WOODCREEK SECTION 10-A AND 10-B I I DRAINAGE REPORT WOODCREEK SECTION 10-A AND 10.B INTRODUCTION: The purpose of this report is to study the effects of the development of Woodcreek Sections lOA and 10-B. 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 29-acre subdivision is located at the end of Woodcreek Drive. The development will extend Woodcreek Drive with the future development of Section I 0-B connecting Woodcreek Drive with the existing extension of Faulkner Drive. Sections 10-A and 10-B are bounded by Foxfire Phase 2 to the northeast, Woodcreek Section Two and Three to the west and undeveloped property owned by Robert and Marguerite Carroll to the southeast. The site is mostly wooded with gently rolling terrain with an average slope of 2.00/o to 2.5%. FLOOD HAZARD INFORMATION: This property is not located in a 100-Year Flood Hazard Area according to the Flood Insurance Rate Maps for Braros County, Texas and Incorporated Areas, Map No. 48041C205 C effective July 2, 1992 prepared by the Federal Emergency Management Agency (See Exlnoit "A"). DRAINAGE REPORT 1 WOODCREEK SECTION 10-A AND 10-B PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION: The primary drainage basin for the site is the Foxfire Tnoutary of Carters Creek. The site is not located on the primary channel. The secondary drainage basin is a branch of the Foxfire Tnoutary. This branch is a well- defined channel that runs along the boundary of Woodcreek Sections One, Two and 10 (A & B.) Exhibit "B" shows the proposed development and the location of the proposed detention facilities next to the branch of the Foxfire Tributary. DRAINAGE DESIGN CRITERIA: All drainage 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. Pipe sizing is in accordance with Manning's Equation with an ''n" of0.014 per the DPDS. The storage volume required for the detention pond is based on a triangular hydro graph (base = 3• Tc). The Pre-development area used for the study is the present day conditions as shown in Exluoit "B". STORM DRAIN FAcn.ITY DESIGN: Stonn water from the site will be captured in the curbs and gutters and conveyed by RC.P. storm drain to the detention facilities. Exluoit "C-1" shows the rational calculations for the various drainage areas corresponding to the Drainage Area Map (Exlnoit "B"). Exhibit "C-2" shows the inlet computations. Exhibit "C-3" shows the pipe size calculations for the storm drain. Exhibit "C-4" shows the culvert analysis for the 48" RCP culvert which crosses Woodcreek Drive. Please note that the design shown in exhibit "C-4" is the more conservative of the two methods used (FHWA in DRAINAGE REPORT 2 WOODCREEK SECTION 10-A AND 10-B Exlnbit "C-4", and HEC-RAS Energy shown in Exlubit "G".) Because this is the more conservative method, the headwater elevations shown on sheet 2 of the drawings reflect these numbers . DETENTION FACILITY DESIGN: Three detention facilities will be constructed as part of Section 10-A. The three facilit ies will provide the detention requirements for both Section 10-A and 10-B. This will be accomplished by providing over-detention in Detention Facility #3. Exlubit "B" shows the drainage areas for the proposed development and the location of the three detention facilities. The three facilities were analyzed individually. The study point for Detention Facilities #1 and #2 is the outfu.ll of each respective pond. The study point for Detention Facility #3 is the downstream end of drainage area 18. Exhibits "D", "E", and "F" shows the routing and hydrograph charts for the 5,10, 25 , 50, and 100 year storm events . The fullowing SUIIlil'.lal)' tables show the Pre-development and Post-development flows at the study points. ·l ,,, Study Point 1 (Detention Facility #1 Outlet) Design Event Pre-Development Post-Development Water Surface Elev. 40 cfs 41 -cfs ' -296.40 45 cfs 46 cfs 296 .60 52 cfs 52 cfs 296 .90 59 cfs 58 cfs 297 .10 66 cfs 65 cfs 297 .10 Top of Berm= 298.00, Weir Elev.= 297 .00 , Weir Length= 10 ' DRAINAGE REPORT 3 WOODCREEK SECTION 10-A AND 10-B Study Point 2 (Detention Facility #2 Outlet) Design Event Pre-Development Post-Development Water Surface Elev. Qs= 54 cfs 53 cfs 290.20 Q10= 61 cfs 60 cfs 290.40 Qis= 70 cfs 69 cfs 290.50 Qso= 79 cfs 78 cfs 290.60 Q100= 89 cfs 88 cfs 290.70 Top of Berm= 292.00, Weir Elev.= 291.00, Weir Length= 10' Study Point 3 (Downstream End of Drainage Area 21) Design Event Pre-Development Post-Development Water Surface Elev. Qs= 108 cfs 108 cfs 283.50 Q10= 123 cfs 122 cfs 283.70 Q2,= 141 cfs 139 cfs 284.10 Qso= 161 cfs 158 cfs 284.30 Q,oo= 182 cfs 179 cfs 284.50 Top of Berm= 285.00, Weir Elev.= 284.50, Weir Length= 5' In some cases, tbe Post-Development flow exceeds the Pre-Development flow by one cubic foot per second. This difference is considered negligtble considering the use of empirical formulas such as Manning's Equation and the Rational Method. Because a small creek crosses some of the lots to be developed, we have developed a water surfuce model using the HEC-RAS modeling system. Note that the final plats for this development shows public drainage easements where the small creek crosses the lots. The computed water surface of the statistical 100 year storm stays within these easements. Exlnbit "G" is a map with the appropriate cross sections, drainage areas, and 100 year water surface delineated. Exlnbit "G-1" DRAINAGE REPORT 4 WOODCREEK SECTION 10-A AND 10-B shows the water surface profile for the 100, 50, 25, 10, and 5 year storms. The profile also de100nstrates the capacity of the 48" Pipe Culvert crossing Woodcreek Drive. The various sections along the creek are shown in Exln"bit "G-2" in both tabular and graphical form. Exhibit "G-3" is the HEC-1 analysis of the flows in the creek. The analysis was performed using SCS Type II, 24 hour storm with SCS Curve Number Losses with the SCS Lag Equation and Unit Hydrograph. The flows generated using this analysis are much higher than the flows generated using the rational method which was shown in the original report. Our experience shows that the flows generated using the SCS methods are overly conservative. We have used the overly conservitive flows to insure that private property is not damaged during major flooding events. This decision makes the 48" culvert at Woodcreek drive appear to fail the one foot offreeboard requirement for the 25 year event. The great disparity (>40%) in flows between the SCS and Rational Method accounts for this difference. Per this analysis the 25 year event still does not go over the roadway. Based on this we feel that the design is in compliance with the requirements of the ordinance . CONCLUSION: For all of the design events, the Post-development flows dO''not exceed the present day Pre- development flows. The 100 year event is contained in the pond and released through the pond outlet device for 9ete'ntion Facility #2. The 100 year event for Detention Facilities #1 and #3 is released through a combination of the pond outlet device and emergency overflow weir. The drainage design for this site meets the requirements as stated in the City of College Station Drainage Policy and Design Standards. DRAINAGE REPORT 5 WOODCREEK SECTION 10-AAND 10-B ZONEX Brazos County Unincorporated Areas 48119.5 . ZONE X '--..,_ -LIMIT OF <.·DETAILED · STUDY Scale: 1" = 1000' , "ty of College Station ___..../. · 480083 r 0 \\ ff t '\\\: \ - RM52 x ..... ROCK -z.____ \ I ' EXHIBIT A te Map Excerpt Flood lnsurancce R~ty Texas Brazos ou ' t d Areas and lncorpora e . 48041C0205C Map Numbers. I L5 ;: c 0 0:: w ..J ..J c:i:: c:i:: a. c:i:: LL. w w 0 j:: I-c (!) 0:: ..J z c:i:: z c:i:: w z w (.) :3 :I: c:i:: w ..J > :E ..J z c:i:: w c:i:: c w c:i:: 0:: I-~ en w (!) I-cw > I->z 0 z 0:: w c:i:: 0 c I-::::> c:i:: 0:: a. I-o~ NO. AC. 0.4 0.55 0.9 ft. 1 4.27 4.00 0.27 0.00 1.75 510.0 2 6.22 1.00 5.22 0.00 3.27 530.0 3A 0.42 0.00 0.42 0.00 0.23 ·50.0 38 1.51 0.40 1.11 0.00 0.77 350.0 4A 0.59 0.00 0.59 0.00 0.32 50.0 48 0.67 0.00 0.67 0.00 0.37 50.0 5 4.13 0.00 4.13 0.00 2.27 250.0 6.1 2.16 0.00 2.16 0.00 1.19 350.0 6.2 0.81 0.00 0.81 0.00 0.45 50.0 6.3 0.39 0.00 0.39 0.00 0.21 100.0 7 0.44 0.00 0.44 0.00 0.24 100.0 7.1 1.08 0.00 1 08 0.00 0.59 100.0 8 4.50 0.00 4.50 0.00 2.48 200.0 9 0.21 0.00 0.21 0.00 0.12 20.0 10 1.35 1.00 0.35 0.00 0.59 100.0 11 2.11 0.00 2.11 0.00 1.16 350.0 12A 0.61 0.00 0.61 0.00 0.34 140.0 128 0.92 0.00 0.92 0.00 0.51 63.0 13 1.85 0.00 1.85 0.00 1.02 222.0 14 0.66 0.00 0.66 0.00 0.36 79.0 15 0.79 0.00 0.79 0.00 0.43 227.0 16.0 1.36 0.00 1.36 0.00 0.75 86.0 17A 0.53 0.00 0.53 0.00 0.29 140.0 178 1.14 0.00 1.14 0.00 0.63 ~21.0 18 0.00 0.00 0.00 0.00 0.00 1.0 19.0 0.89 0.00 0.89 0.00 0.49 .so.a EXHIBIT C-1 Rational Formula Drainage Area Calculations WOODCREEK SECTION 1 OA AND B ;: 0 ;: ;: ..J LL. 0 0 c ..J ..J z LL. LL. ~ :3 0:: :I: 0:: u " w I-w I-. " 0:: ..J t: (!) t: ::l 0 I-<.i. w ..J ::::> z ..J w > c:i:: ::::> c:i:: w 'iij en N It) 0 LL. (!) ~ (!) LL. > (.) ::::> !:::! a ~ a ft. ft. ft. ft/s min min In/Hr cf s In/Hr cf s 10.0 1.0 1.0 1.0 8.6 8.6 6.76 11.8 8.2 14.3 10.0 1.0 1.0 1.0 9.1 9.1 6.59 21.6 8.0 26.2 0.5 230.0 1.3 1.2 3.8 5.0 8.22 1.9 9.9 2.3 12.0 50.0 0.8 1.4 4.8 5.0 8.22 6.3 9.9 7.6 0.5 330.0 2.0 1.3 4.7 5.0 8.22 2.7 9.9 3.2 0.5 330.0 2.0 1.3 4.7 5.0 8.22 3.0 9.9 3.6 6.0 500.0 5.0 1.6 8.0 8.0 6.95 15.8 8.4 19.1 8.0 200.0 4.0 1.4 6.7 6.7 7.47 8.9 9.0 10.7 0.5 400.0 4.0 1.6 4.5 5.0 8.22 3.7 9.9 4.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 1.8 9.9 2.1 1.0 100.0 1.0 1.0 3.2 5.0 8.22 2.0 9.9 2.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 4.9 9.9 5.9 2.0 900.0 7.0 1.4 13.3 13.3 5.52 13.7 6.8 16.7 0.2 200.0 2.0 1.7 2.2 5.0 8.22 0.9 9.9 1.1 1.0 300.0 1.5 1.1 5.9 5.9 7.78 4.6 9.3 5.5 7.0 200.0 4.0 1.3 7.0 7.0 7.32. 8.5 8.8 10.2 1.4 227.0 2.3 1.2 5.2 5.2 8.12 2.7 9.7 3.3 0.6 429.0 8.6 2.0 4.1 5.0 8.22 4.2 9.9 5.0 2.2 @a1 .0 11.0 1.5 9.8 9.8 6.39 6.5 7.8 7.9 0.8 475.0 8.0 1.9 4.9 5.0 8,22 3.0 9.9 3.6 5.0 93.0 1.0 1.2 4.4 5.0 8.22 3.6 9.9 4.3 0.9 580.0 7.0 1.7 6.5 6.5 7.54 5.6 9.1 6.8 1.4 160.0 1.6 1.1 4.6 5.0 8.22 2.4 9.9 2.9 6.0 107.0 1.2 1.1 6.4 6.4 7.58 4.7 9.1 5.7 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 0.5 400.0 2.0 1.3 5.9 5.9 7.77 3.8 9.3 4.6 0 It) 0 .... It) N !: a !:::! a In/Hr cfs In/Hr cfs 9.2 16.0 10.5 18.3 9.0 29.3 10.2 33.5 11.0 2.5 12.5 2.9 11.0 8.5 12.5 9.6 11.0 3.6 12.5 4.1 11.0 4.0 12.5 4.6 9.4 21.4 10.7 24.4 10.1 11.9 11.5 13.6 11.0 4.9 12.5 5.6 11.0 2.4 12.5 2.7 11.0 2.7 12.5 3.0 11.0 6.5 12.5 7.4 7.6 18.9 8.7 21.6 11.0 1.3 12.5 1.4 10.4 6.2 11.9 7.0 9.9 11.5 11.3 13.1 10.9 3.6 12.4 4.1 11.0 5.6 12.5 6.3 8.7 8.9 10.0 10.1 11.0 4.0 12.5 4.5 11.0 4.8 12.5 5.4 10.1 7.6 11.6 8.7 11.0 3.2 12.5 3.6 10.2 6.4 11.6 7.3 11.0 0.0 12.5 0.0 10.4 5.1 11.9 5.8 0 0 It) ~ a In/Hr cf s 11.8 20.7 11.6 37.8 14.1 3.3 14.1 10.9 14.1 4.6 14.1 5.2 12.1 27.6 12.9 15.4 14.1 6.3 14.1 3.0 14.1 3.4 14.1 8.4 9.9 24.4 14.1 1.6 13.4 7.9 12.7 14.7 13.9 4.7 14.1 7.1 11.3 11.4 14.1 5.1 14.1 6.1 13.1 9.8 14.1 4.1 13.1 8.2 14.1 0.0 13.4 6.6 0 0 0 0 .... '!: a In/Hr cfs 13.3 23.2 13.0 ,42.5 15.8 3.6 15.8 12.2 15.8 5.1 15.8 5.8 13.6 30.9 14.5 17.2 15.8 7.0 15.8 3.4 15.8 3.8 15.8 9.4 11.1 27.5 15.8 1.8 15.0 8.9 14.2 16.5 15.6 5.2 15.8 8.0 12.6 12.9 15.8 5.7 15.8 6.9 14.6 10.9 15.8 4.6 14.7 9.2 15.8 0.0 15.0 7.4 9/21/98 9731-dra.xls Exhibit C-1 < ;: w c 0 0:: w _J _J < < .a. < u.. w w 0 ~ .... c (!) 0:: _J z < z < < w z w (.) :3 i= > w _J :::1: _J z c ~ < W< u; w ~ 0:: (!) .... cw > Wz 0 z 0:: w < 0 >w c .... ::::> < 0:: a. .... 0 _J NO. AC. 0.4 0.55 0.9 ft. 20A 1.19 0.00 1.19 0.00 0.65 300.0 208 0.95 0.00 0.95 0.00 0.52 70.0 21.0 4.02 2.01 2.01 0.00 1.91 100.0 22 4.52 2.52 2.00 0.00 2.11 300.0 Cul1 23.83 0.00 23.83 0.00 13.11 600.0 Cul2 3.46 2.65 0.00 0.81 1.79 508.0 Exist1 12.42 7.56 4.86 0.00 5.70 600.0 Prop1 10.49 5.00 5.49 0.00 5.02 600.0 Exist2 17.81 9.92 7.89 0.00 8.31 600.0 Prop2 16.55 7.56 8.99 0.00 7.97 600.0 Exist3 51.03 34.31 16.72 0.00 22.92 600.0 Pond3 4.21 0.50 3.71 0.00 2.24 300.0 Prop10A 24.54 13.54 11.00 0.00 11.47 600.0 Prop10B 19.75 6.01 13.74 0.00 9.96 500.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations WOODCREEK SECTION 1 OA AND B ;: 0 ;: ;: _J u.. 0 0 c _J _J z u.. u.. ~ :3 0:: J: 0:: u u w .... w .... u .... 0:: _J ~ (!) .... _J 0 u w _J ::::> z .... _J _J w >< ::::> < w "iij CJ) N .., 0 u.. (!) ~ (!) u.. > (.) ::::> !:::! a ~ a ft. ft. ft. ftfs min min In/Hr cfs In/Hr cfs 3.0 100.0 1.0 0.8 7.9 7.9 6.99 4.6 8.4 5.5 0.7 300.0 2.0 1.3 4.7 5.0 8.22 4.3 9.9 5.1 1.0 1800.0 18.0 1.8 17.5 17.5 4.78 9.1 5.9 11.2 3.0 300.0 3.0 1.0 9.6 9.6 6.44 13.6 7.8 16.5 13.0 970.0 22.0 1.7 15.0 15.0 5.19 68.0 6.4 83.5 7.0 78.0 1.0 0.9 10.8 10.8 6.11 10.9 7.4 13.3 13.0 400.0 10.0 1.4 11.7 11.7 5.87 33.5 7.2 40.8 13.0 400.0 10.0 1.4 11.7 11.7 5.87 29.5 7.2 36.0 13.0 800.0 18.0 1.7 14.1 14.1 5.36 44.5 6.6 54.6 13.0 800.0 18.0 1.7 14.1 14.1 5.36 42.7 6.6 52.4 13.0 2350.0 36.0 1.9 25.6 25.6 3.83 87.7 4.8 109.1 6.0 330.0 2.0 1.2 8.6 8.6 6.76 15.2 8.2 18.4 13.0 1400.0 26.0 1.8 18.3 18.3 4.67 53.5 5.8 66.0 5.0 200.0 1.0 0.8 14.2 14.2 5.35 53.3 6.6 65.3 0 .., 0 .,.... .., N !: a !:::! a In/Hr cf s In/Hr cfs 9.5 6.2 10.8 7.1 11.0 5.7 12.5 6.5 6.7 12.7 7.6 14.6 8.8 18.5 10.0 21.1 7.2 94.2 8.2 107.8 8.4 15.0 9.6 17.1 8.1 45.9 9.2 52.5 8.1 40.5 9.2 46.3 7.4 61.6 8.5 70.4 7.4 59.1 8.5 67.6 5.4 124.1 6.2 142.5 9.2 20.6 10.5 23.5 6.5 74.7 7.5 85.6 7.4 73.6 8.5 84.3 0 0 .., ~ a In/Hr cfs 12.2 8.0 14.1 7.4 8.6 16.5 11.3 23.9 9.3 122.1 10.8 19.3 10.4 59.4 10.4 52.3 9.6 79.8 9.6 76.5 7.1 162.0 11.8 26.5 8.5 97.1 9.6 95.4 0 0 0 0 .,.... !: a In/Hr cfs 13.7 8.9 15.8 8.2 9.8 18.6 12.7 26.8 10.5 137.6 12.1 21.7 11.7 66.8 11.7 58.9 10.8 89.9 10.8 86.2 8.0 183.4 13.3 29.8 9.6 109.6 10.8 107.5 9/21/98 9731-dra.xls Exhibit C-1 0 .... • • .. ~ f -~ ~ ~ = -:.= "" 0 ~ -"" . < • "1:1 <o ... ~ ~ ~ • -~~ Oil t ~ Q Oil 0 • • cs·! = i ·-• '! • u ~~ o~ .. Q "" -~ 0 ~ 00 cfs 3A NA 2.5 0.0 2.5 28 3B NA 8.5 0.0 8.5 28 4A NA 3.6 0.0 3.6 28 4B NA 4.0 0.0 4.0 28 6.1 6.3 11.9 0.0 11.9 28 6.2 6.3 4.9 0.0 4.9 28 6.3 12A 2.4 8.7 11.1 39 7 6.3 2.7 9.6 12.2 39 9 16 1.3 0.0 1.3 39 11 12A 11.5 0.0 11.5 28 12A 17A 3.6 2.2 5.8 39 12B 17A 5.6 0.0 5.6 ·28 13 16 8.9 0.0 8.9 28 14 15 4.0 0.0 4.0 28 15 17B 4.8 0.9 5.7 28 16 NA 7.6 0.0 7.6 28 17A NA 3.2 0.0 3.2 39 17B NA 6.4 0.0 6.4 .28 18 NA 0.0 0.0 0.0 28 19 20A 5.1 0.0 5.1 39 20A NA 6.2 0.0 6.2 28 20B NA 5.7 0.0 5.7 28 EXHIBIT C-2 INLET COMPUTATIONS WOODCREEK SECTION 10A AND B --ti ~ -b = ~ 00 --'i ~ • Q 0 ·= -z = ~ -'! C" Cl. ~ ~ Q -a Q DESCRIPTION ~ 00 """"' ~ 0.1% 1.1% 3 11.0 Recessed Low Point Inlet 0.2% 0.2% 4 7.6 Recessed Low Point Inlet 2.1% 6.1 11.9 Recessed Inlet on Grade 0.4% 6.2 4.9 Recessed Inlet on Grade 3.9% 6.3 11.1 Recessed Low Point Inlet 4.7% 7 12.2 Recessed Inlet on Grade 0.1% 9 1.3 Recessed Low Point Inlet 1.9% 11 11.5 Recessed Inlet on Grade 1.1% 0.5% 12 11.4 Recessed Low Point Inlet 1.2% 13 8.9 Recessed Inlet on Grade 0.2% ~ 14 4.0 Recessed Inlet on Grade 0.5% 15 5.7 Recessed Inlet on Grade 0.8% 16 7.6 Recessed Low Point Inlet 0.3% 0.6% 17 9.6 Recessed Low Point Inlet 0.0% 18 0.0 Junction Box 0.8% 19 5.1 Recessed Inlet on Grade 0.6% 0.5% 20 11.9 Recessed Low Point Inlet ~ ~ .. ~ ~ ~ cfs 2.33 2.33 0.62 0.62 2.33 0.62 2.33 0.62 2.33 0.62 0.62 0.62 2.33 2.33 0.62 2.33 "" ~ "1:1 0 ~ "1:1 -0 .... t .... 2" Q ~ .. CIS ~ u ~ ~ 0 Curb Inlet ft ft 0 4.71 5 0 0 3.26 5 0 19.33 10 5.8 7.92 10 0 4.75 10 0 19.80 15 3 0.54 5 0 18.53 15 2.2 0 4.88 5 0 14.35 15 0 6.45 5 0.9 9.17 10 0 3.25 5 0 0 4.11 10 0 0 8.26 IO 0 0 5.11 10 0 .c -Cl. ~ ~ 'i "1:1 = Q ~ ft "1:1 'i ~ ~ 00 .. "1:1 ·-·-= .... "" C" ~ ~ Q ~ "" ~ ~ ~ CIS . CIS ~ ~ "" < u < Grate Inlet cfs sa-ft sq-ft 9/21/98 9731-dra.xls Exhibit C-2 ~ 0 < E-c u B z 8 Vl E-c ~ fc ~ ... s 0 ~ u E-c E-c = EXHIBIT C-3 WOODCREEK SECTION 10A AND B « ~ e fc -~ ... = « ~ Cl) « = ... ~ ~ ~ Cl. Cl. '2 ~ ... e = ~ -Cl. Vl .. '2 ... rl) ... = ~ ~ = .. ~ e . ..., rl) c... -.:: -e ~ = e ~ s u OS e :s = ... =--... ;::i ~ < z ~ ~ Vl ..J ~ # # Ac. min yr cfs cfs # cfs % H fps 38 2 1.0 5.2 10 10.9 13.6 1 13.6 0 .85 21 5.7 48 5 0 .7 5.1 10 7.6 9 .5 1 9.5 0.93 18 5 .3 6.1 6.2 1.2 6.7 10 11.9 14.9 1 14.9 0.50 24 4.8 6.2 6.3 1.6 6.8 10 16.3 16.3 1 16.3 0.32 27 4.1 6.3 9 1.8 6.9 10 18.3 18.3 1 18.3 0.23 30 3.7 7 10 2 .7 13.9 10 20 .3 20.3 1 20.3 0.11 36 2.9 11 128 1.2 7 .0 10 11.5 14 .3 1 14.3 0.94 21 5.9 128 18 2.0 7 .2 10 19.6 24 .5 1 24 .5 1.35 24 7.8 13 14 1.0 9.8 10 8 .9 11.1 1 11.1 1 .28 18 6 .3 14 15 1.4 10.0 10 11.9 14.9 1 14.9 1 .02 21 6 .2 15 178 1.8 10.6 10 15 .3 19.2 1 19.2 1 .68 21 8.0 16 178 0 .7 6 .5 10 7.6 9 .5 1 9.5 0 .94 18 5.4 178 18 3 .5 11.0 10 28.9 28.9 1 28.9 1.00 27 7.3 18 19 5 .5 11.1 10 45.3 45.3 1 45.3 0 .85 33 7.6 19 208 6 .0 11.2 10 49.1 49.1 1 49.1 0 .99 33 8.3 208 HW1 7.2 11.9 10 57.3 57.3 1 57.3 1.35 33 9.6 *Includes 25% Flow Increase for pipe sizes <27' dla . .. See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) « ~ t> ... u • z Cl. OS :J u cfs I 13.6 31 9.4 31 14.9 31 16.3 40 18.3 42 20.2 30 14.3 60 24.5 230 11 .1 96 14.9 195 19.1 225 9.5 31 28 .8 24 45.3 69 49.1 340 57.2 31 ~ a ... E-c -~ ~ ~ min 0.09 0 .10 0.11 0.16 0.19 0.17 0.17 0.49 0.26 0.53 0.47 0.10 0.06 0.15 0.69 0.05 -e = ~ @ u E-c min 5 .24 5.20 6 .76 6.92 7.11 14.11 7.20 7 .69 10.03 10.55 11.02 6.57 11 .08 11.23 11.91 11.97 i I E-c ~ s ' 9/21/98 9731-dra .xls Exhibit C-3 Culvert #2 CUlwrt Descrlptlon DUAL 18"RCP AT FAULKNER DRIVE Culvert Deslan Crttena C i rcular Pipe No. Dia .Ill\ PinAA 1.50 2 Culvert Analvala Calculatlona Total Flow per Critical Design Flow Pipe Depth(fl) Storm (cfa) (cfa) de 5 13.30 8.85 1.05 10 15.00 7.50 1.10 25 17.10 8.55 1.15 50 19.30 9.65 1.20 100 21 .70 10 .85 1.25 Elhl z Hw i + ELI ho = TW or (de + 0)12 (Whiche-is Greater) n 0.01'4 Normal Depth {ft.) 0 .87 O.IM 1.0'4 1.14 1.30 EXHIBITC-4 CULVERT ANALYSIS WOODCREEK SECTION 10-A AND 10-8 ELhl~ ~ TopofRoad ~ELho --,....!_HW_l _7-2~0-------~ H J--~------TW Ell Proposed Culvert :_;::;..-- - - -~'- Outfall Channel Desi n Criteria lnwrt Outlet Culvert Top Ll Side Rt Side Bottom Elev. (EU) Elev. {ELo) Length Slope of Slope Slope Slope Width n (ft.\ (ft.) (It) (ft/ft) Road ke I ?:1 ?:1 It 276.15 275.06 96 .25 0.0113 279.30 0.60 I 0 .0100 '4 .00 '4 .00 0.00 0 .025 HEADWATER CALCULATIONS Control Type INLET CONTROL HWVD HWI Elhl 1.01 1.52 277.67 1.09 1.63 277.78 1.19 1.79 277.IM 1.32 1.97 278 .12 1.'47 2 .20 278 .35 Ha {1 +ke+{(29*(n"2)"l)IRA1 .33)]*((Y"2)/2g) Elho z Elo + H + ho OUTLET CONTROL TW de (de+ Dl/2 ho 0.73 1.05 1.28 1.28 0 .77 1.10 1.30 1.30 0.81 1.15 1.33 1.33 0.85 1.20 1.35 1.35 0.89 1.25 1.38 1.38 HW of H Elho Elev. Control 0.77 277 .11 277 .67 Inlet 0.96 277.3'4 277.78 Inlet 1.28 277.66 277.IM Inlet 1.63 278.0'4 278.12 Inlet 2.06 278.50 278.50 Outlet Outlet Velocity lfm) 6.25 6 .'41 6 .56 6 .67 6 .90 ELo Freeboard (ft.) 1.63 1.52 1.36 1.18 0.80 9121198 9731-cul2.xls Exhibit C-4 DA# DA# DA# 'II: -a Iii I! z ~ ~ ~ ~ ~ 0 QI) 2.3 7.6 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.2 0.8 1.0 1.0 0.5 1.5 2.0 1.5 0.7 2.3 3.0 2.0 0.9 3.0 3.9 2.5 1.1 3.8 4.9 3.0 1.4 4.6 5.9 3.5 1.6 5.3 6.9 4.0 1.8 6.1 7.9 4.5 2.0 6.8 8.9 5.0 2.3 7.6 9.9 5.5 2.2 7.2 9.4 6.0 2.0 6.8 8.9 6.5 1.9 6.5 8.4 7.0 1.8 6.1 7.9 7.5 1.7 5.7 7.4 8.0 1.6 5.3 6.9 8.5 1.5 4.9 6.4 9.0 1.4 4.6 5.9 9.5 1.3 4.2 5.4 10.0 1.1 3.8 4.9 10.5 1.0 3.4 4.4 11.0 0.9 3.0 3.9 11.5 0.8 2.7 3.5 12.0 0.7 2.3 3.0 12.5 0.6 1.9 2.5 13.0 0.5 1.5 2.0 13.5 0.3 1.1 1.5 14.0 0.2 0.8 1.0 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 o.o 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 2 8 10 0.00 indicat9& inital condition EXHIBIT "D-1" PROPOSED DETENTION f)()ND ROUTING WOODCREEK DETENTION FACILITY 11 Pond Routlna EVENT• 5 ~ c ~ l! 0 + + ""' c ... "O IOI ~ ~ c + ~~ ~ & cfs cfs cfs cfs ft 0.99 0.00 0.00 0.00 294.7 2.96 0.00 0.99 0.87 294.8 4.93 0.00 2.96 2.58 295.0 6.91 0.00 4.93 2.79 295.1 8.88 0.88 6.91 3.01 295.1 10.85 3.11 9.76 3.33 295.3 12.83 6.39 13.97 3.79 295.4 14.80 10.94 19.22 4.14 295.5 16.77 17.04 25.74 4.35 295.6 18.75 24.59 33.81 4.61 295.8 19.24 33.49 43.33 4.92 295.9 18.25 42.39 52.73 5.17 296.0 17.27 50.01 60.64 5.31 296.1 16.28 56.41 67.28 5.43 296.2 15.29 61.63 72.69 5.53 296.3 14.31 65.72 76.93 5.60 296.3 13.32 68.70 80.02 5.66 296.3 12.33 70.63 82.02 5.70 296.4 11.35 71.54 82.96 5.71 296.4 10.36 71.46 82.88 5.71 296.4 9.37 70.44 81.82 5.69 296.4 8.39 68.50 79.81 5.66 296.3 7.40 65.67 76.88 5.60 296.3 6.41 62.00 73.07 5.54 296.3 5.43 57.51 68.41 5.45 296.2 4.44 52.23 62.94 5.35 296.2 3.45 46.18 56.67 5.24 296.1 2.47 39.40 49.63 5.12 296.0 1.48 32.12 41.86 4.87 295.9 0.49 24.39 33.60 4.61 295.8 0.00 16.24 24.88 4.32 295.6 0.00 8.16 16.24 4.04 295.5 0.00 1.86 8.16 3.15 295.2 0.00 0.00 1.86 1.64 294.9 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.4 DA# Q w ... _J g l ~ E g: 36.0 11.7 cfs cfs 0.0 0.00 1.5 2.40 3.1 5.64 4.6 7.39 6.1 9.14 7.7 10.98 9.2 12.98 10.7 14.86 12.3 16.61 13.8 18.40 15.3 20.24 16.9 22.02 18.4 23.70 19.9 25.35 21.4 26.98 23.0 28.58 24.5 30.17 26.0 31.74 27.6 33.29 29.1 34.82 30.6 36.33 32.2 37.83 33.7 39.31 35.2 40.77 35.6 41.04 34.8 40.17 34.1 39.30 33.3 38.40 32.5 37.39 31.8 36.36 31.0 35.31 30.2 34.26 29.5 32.61 28.7 30.33 27.9 27.93 27.2 27.16 26.4 26.39 25.6 25.63 24.9 24.86 24.1 24.10 23.3 23.33 22.6 22.56 21.8 21.80 21.0 21.03 20.3 20.27 19.5 19.50 18.7 18.73 18.0 17.97 17.2 17.20 16.4 16.44 15.7 15.67 36 41 DA# _J ~ 't: c( VI • ....~ ~ E 40.8 11.7 cfs cfs 0.0 0.00 1.7 1.74 3.5 3.48 5.2 5.22 7.0 6.95 8.7 8.69 10.4 10.43 12.2 12.17 13.9 13.91 15.6 15.65 17.4 17.39 19.1 19.13 20.9 20.86 22.6 22.60 24.3 24.34 26.1 26.08 27.8 27.82 29.6 29.56 31.3 31.30 33.0 33.03 34.8 34.77 36.5 36.51 38.3 38.25 40.0 39.99 40.4 40.39 39.5 39.52 38.6 38.65 37.8 37.78 36.9 36.91 36.0 36.04 35.2 35.17 34.3 34.30 33.4 33.43 32.6 32.56 31.7 31.69 30.8 30.83 30.0 29.96 29.1 29.09 28.2 28.22 27.3 27.35 26.5 26.48 25.6 25.61 24.7 24.74 23.9 23.87 23.0 23.00 22.1 22.13 21.3 21.26 20.4 20.39 19.5 19.52 18.7 18.65 17.8 17.79 40 40 9731 pnd1 .xis Exhibit 0-1 DA# DA# DA# • a c .. w .... z ~ iii 'g :IE ~ ,; ~ g Qo 2.5 8.5 Tc 5.0 5.0 Inc 0.5 Time cfs cts 0.0 0.0 0.0 0.0 0.5 0.3 0.8 1.1 1.0 0.5 1.7 2.2 1.5 0.8 2.5 3.3 2.0 1.0 3.4 4.4 2.5 1.3 4.2 5.5 3.0 1.5 5.1 6.6 3.5 1.8 5.9 7.7 4.0 2.0 6.8 8.8 4.5 2.3 7.6 9.9 5.0 2.5 8.5 11.0 5.5 2.4 8.0 10.4 6.0 2.3 7.6 9.9 6.5 2.2 7.2 9.3 7.0 2.0 6.8 8.8 7.5 1.9 6.3 8.2 8.0 1.8 5.9 7.7 8.5 1.6 5.5 7.1 9.0 1.5 5.1 6.6 9.5 1.4 4.7 6.0 10.0 1.3 4.2 5.5 10.5 1.1 3.8 4.9 11.0 1.0 3.4 4.4 11.5 0.9 3.0 3.8 12.0 0.8 2.5 3.3 12.5 0.6 2.1 2.7 13.0 0.5 1.7 2.2 13.5 0.4 1.3 1.6 14.0 0.3 0.8 1.1 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 . 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 8 11 0.00 indicates inital oondition EXHIBIT "D-1" PROPOSED DETENtlON PONO ROUTING ·WOODCREEK DETENTION FACILITY 11 Pond Routlna EVENT• 10 ~ c ~ :E + 2 i -'g .. .5 J:! & c > 1: l(l !!! ~ ;! cfs cfs cfs chi ft 1.10 0.00 0.00 0.00 294.7 3.30 0.00 1.10 0.97 294.8 5.50 0.00 3.30 2.61 295.0 7.70 0.00 5.50 2.86 295.1 9.90 1.50 7.70 3.10 295.2 12.10 4.39 11.40 3.51 295.3 14.30 8.39 16.49 4.05 295.5 16.50 14.16 22.68 4.25 295.6 18.70 21.66 30.68 4.51 295.7 20.90 30.70 40.35 4.82 295.9 21.45 41.30 51.60 5.15 296.0 20.35 52.04 62.74 5.35 296.1 19.25 61.34 72.38 5.52 296.3 18.15 69.24 80.58 5.67 296.3 17.05 75.80 87.39 5.79 296.4 15.95 81.07 92.85 5.89 296.5 14.85 85.09 97.02 5.96 296.5 13.75 87.90 99.94 6.02 296.6 12.65 89.56 101.65 6.05 296.6 11.55 90.09 102.21 6.06 296.6 10.45 89.55 101.64 6.05 296.6 9.35 87.96 100.00 6.02 296.6 8.25 85.37 97.31 5.97 296.5 7.15 81.81 93.62 5.90 296.5 6.05 77.32 88.96 5.82 296.4 4.95 71.93 83.37 5.72 296.4 3.85 65.67 76.88 5.60 296.3 2.75 58.58 69.52 5.47 296.2 1.65 50.67 61.32 5.33 296.1 0.55 41.99 52.32 5.17 296.0 0.00 32.75 42.54 4.90 295.9 0.00 23.60 32.75 4.58 295.8 '.· 0.00 15.03 23.60 4.28 295.6 0.00 7.22 15.03 3.90 295.5 0.00 1.13 7.22 3.05 295.2 0.00 0.00 1.13 1.00 294.8 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.6 DA# fil _J ~ Q. 0 ~o If. g g: 40.5 11.7 cfs cfs 0.0 0.00 1.7 2.69 3.4 6.06 5.2 8.02 6.9 9.99 8.6 12.12 10.3 14.39 12.1 16.31 13.8 18.29 15.5 20.33 17.2 22.38 19.0 24.30 20.7 26.20 22.4 28.07 24.1 29.91 25.8 31.73 27.6 33.53 29.3 35.30 31.0 37.06 32.7 38.79 34.5 40.50 36.2 42.20 37.9 43.87 39.6 45.53 40.0 45.84 39.2 44.88 38.3 43.90 37.4 42.91 36.6 41.90 35.7 40.88 34.9 39.75 34.0 38.57 33.1 37.41 32.3 36.17 31.4 34.45 30.5 31.54 29.7 29.68 28.8 28.62 26.0 27.96 27.1 27.10 26.2 26.24 25.4 25.36 24.5 24.52 23.7 23.65 22.8 22.79 21.9 21.93 21.1 21.07 20.2 20.21 19.3 19.35 18.5 18.49 17.6 17.62 40 46 DA# Cl _J !!l:: t: c( I-• I-~ ~ g~ 45.9 11.7 cfs cfs 0.0 0.00 2.0 1.96 3.9 3.91 5.9 5.87 7.8 7.82 9.8 9.78 11.7 11.73 13.7 13.69 15.6 15.64 17.6 17.60 19.6 19.55 21.5 21.51 23.5 23.46 25.4 25.42 27.4 27.38 29.3 29.33 31.3 31.29 33.2 33.24 35.2 35.20 37.2 37.15 39.1 39.11 41.1 41.06 43.0 43.02 45.0 44.97 45.4 45.42 44.4 44.44 43.5 43.47 42.5 42.49 41.5 41.51 40.5 40.53 39.6 39.56 38.6 38.58 37.6 37.60 36.6 36.62 35.6 35.65 34.7 34.67 33.7 33.69 32.7 32.71 31.7 31.73 30.8 30.76 29.8 29.76 28.8 26.80 27.8 27.82 26.8 26.85 25.9 25.87 24.9 24.89 23.9 23.91 22.9 22.94 22.0 21.96 21.0 20.98 20.0 20.00 45 45 9731pnd1 .xis EJChibit D-1 · D.A.# O.A.# D.A.# 'It ~ Iii Q, I! I ~ m 8 ~ ~ Qp 2.9 9.6 Tc 5.0 5.0 Inc 0..5 Time cfs eta 0.0 0.0 0.0 0.0 0.5 0.3 1.0 1.3 1.0 0.6 1.9 2.5 1.5 0.9 2.9 3.8 2.0 1.2 3.9 5.0 2.5 1.4 4.8 6.3 3.0 1.7 5.8 7.5 3.5 2.0 6.7 6.8 4.0 2.3 7.7 10.0 4.5 2.6 8.7 11.3 5.0 2.9 9.6 12.5 5.5 2.7 9.2 11.9 6.0 2.6 8.7 11.3 6.5 2.5 8.2 10.6 7.0 2.3 7.7 10.0 7.5 2.2 7.2 9.4 8.0 2.0 6.7 8.8 8.5 1.9 6.3 8.1 9.0 1.7 5.8 7.5 9.5 1.6 5.3 6.9 10.0 1.4 4.8 6.3 10.5 1.3 4.3 5.6 11.0 1.2 3.9 5.0 11.5 1.0 3.4 4.4 12.0 0.9 2.9 3.8 12.5 0.7 2.4 3.1 13.0 0.6 1.9 2.5 13.5 0.4 1.4 1.9 14.0 0.3 1.0 1.3 14.5 0.1 0.5 0.6 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 10 13 o. 00 indicates inltaf condition · EXHIBIT "0-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 11 Pond Routing EVENT• 25 c ~ c + ~ ~ .g ..... ..... ~~ c + i c + !!? !!? a ~~ cfs eta cfs eta ft 1.25 0.00 0.00 0.00 294.7 3.76 0.00 1.25 1.10 294.8 6.26 0.00 3.76 2.66 295.0 8.77 0.38 6.26 2.94 295.1 11.27 2.63 9.15 3.26 295.2 13.78 6.34 13.91 3.78 295.4 16.28 11.79 20.12 4.17 295.6 18.79 19.22 28.07 4.43 295.7 21.29 28.51 38.00 4.75 295.8 23.80 39.56 49.80 5.12 296.0 24.42 52.63 63.36 5.36 296.2 23.17 65.84 77.05 6.61 296.S 21.92 77.37 89.01 5.82 296.4 20.67 87.28 99.29 6.00 296.5 19.41 95.63 107.95 6.16 296.6 18.16 102.47 115.04 6.29 296.7 16.91 107.86 120.63 6.39 296.8 15.66 111.85 124.77 6.46 296.8 14.40 114.49 127.50 6.51 296.9 13.15 115.82 128.89 6.53 296.9 11.90 115.91 128.98 6.53 296.9 10.65 114.78 127.80 6.51 296.9 9.39 112.48 125.42 6.47 296.8 8.14 109.06 121.87 6.41 296.8 6.89 104.55 117.20 6.32 296.7 5.64 99.00 111.44 6.22 296.7 4.38 92.43 104.63 6.10 296.6 3.13 64.90 96.62 5.96 296.5 1.68 76.42 86.03 5.60 296.4 0.63 67.04 76.30 5.63 296.3 0.00 56.79 67.67 5.44 296.2 0.00 46.30 56.79 5.25 296.1 0.00 36.26 46.30 5.02 296.0 0.00 26.66 36.26 4.69 295.8 0.00 16.11 26.88 4.39 295.7 0.00 9.90 18.11 4.10 295.5 0.00 3.22 9.90 3.34 295.3 0.00 0.00 3.22 2.61 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 7 296.9 D.A.# 5l ~~ Q. ~~ 0 Ii. E o:: 46.3 11.7 cfs eta 0.0 0.00 2.0 3.07 3.9 6.60 5.9 8.85 7.9 11.13 9.8 13.63 11.8 15.98 13.8 18.21 15.8 20.50 17.7 22.84 19.7 25.05 21.7 27.27 23.6 29 ... 5 25.6 31.60 27.6 33.73 29.5 35.82 31.5 37.89 33.5 39.94 35.4 41.96 37.4 43.95 39.4 45.92 41.4 47.87 43.3 .. 9.79 45.3 51.70 45.7 52.07 44.8 50.98 43.6 49.88 42.6 48.75 41.8 47.61 40.8 46.45 39.8 45.28 38.9 44.10 37.9 42.88 36.9 .. 1.57 35.9 40.29 34.9 39.02 33.9 37.27 32.9 35.55 32.0 31.96 31.0 30.98 30.0 29.99 29.0 29.01 28.0 28.02 27.0 27.04 26.1 26.05 25.1 25.07 24.1 24.08 23.1 23.10 22.1 22.11 21.1 21.13 20.1 20.14 46 52 D.A.# 0 ~~ t: < .... • s~ ~ .. w 52.5 11.7 cfs cfs 0.0 0.00 2.2 2.24 4.5 4.47 6.7 6.71 8.9 8.94 11.2 11.18 13.4 13.41 15.6 15.65 17.9 17.88 20.1 20.12 22.4 22.35 24.6 24.59 26.8 26.82 29.1 29.06 31.3 31.29 33.5 33.53 35.8 35.76 38.0 38.00 40.2 40.23 42.5 42.47 44.7 44.70 46.9 46.94 49.2 49.17 51.4 51.41 51.9 51.92 50.8 50.80 49.7 49.66 46.6 48.57 47.4 47.45 46.3 46.33 45.2 45.21 44.1 44.10 43.0 42.96 41.9 41.86 40.7 40.74 39.6 39.63 38.5 38.51 37.4 37.39 36.3 36.27 35.2 35.16 34.0 34.04 32.9 32.92 31.8 31.60 30.7 30.69 29.6 29.57 28.5 28.45 27.3 27.33 26.2 26.22 25.1 25.10 24.0 23.98 22.9 22.86 52 52 9731pnd1.xls EictlibitD-1 D.A.# D.A.# D.A.# -i. 0 w "' ... f;; ~ m ::E I ~ ~ 8 IOo 3.3 10.9 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 1.1 1.4 1.0 0.7 2.2 2.8 1.5 1.0 3.3 4.2 2.0 1.3 4.3 5.6 2.5 1.6 5.4 7.1 3.0 2.0 6.5 8.5 3.5 2.3 7.6 9.9 4.0 2.6 8.7 11.3 4.5 2.9 9.8 12.7 5.0 3.3 10.9 14.1 5.5 3.1 10.3 13.4 6.0 2.9 9.8 12.7 6.5 2.8 9.2 12.0 7.0 2.6 8.7 11.3 7.5 2.4 8.1 10.6 8.0 2.3 7.6 9.9 8.5 2.1 7.1 9.2 9.0 2.0 6.5 8.5 9.5 1.8 6.0 7.8 10.0 1.6 5.4 7.1 10.5 1.5 4.9 6.4 11.0 1.3 4.3 5.6 11.5 1.1 3.8 4.9 12.0 1.0 3.3 4.2 12.5 0.8 2.7 3.5 13.0 0.7 2.2 2.8 13.5 0.5 1.6 2.1 14.0 0.3 1.1 1.4 14.5 0.2 0.5 0.7 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0' 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 11 14 o.oo lndicatesinital eondition EXHIBIT "0-1" PROPOSED DETENTION POND ROUTING -WOODCREEK DETENTION FACILITY 11 Pond Routing EVENT• 50 g ~ ~ -:!;! + .... c :!;! + & ~! I c ~ ~ cfs cfs cfs cfs ft 1.41 0.00 0.00 0.00 294.7 4.24 0.00 1.41 1.24 294.8 1.06 0.00 4.24 2.72 295.0 9.88 1.00 7.06 3.03 295.2 12.71 3.99 10.89 3.45 295.3 15.53 8.58 16.70 4.06 295.5 18.35 15.52 24.11 4.30 295.6 21.18 24.64 33.87 4.61 295.8 24.00 35.82 45.82 5.00 296.0 26.82 49.22 59.82 5.30 296.1 27.53 64.87 76.04 5.59 296.3 26.12 80.63 92.40 5.88 296.5 24.71 94.48 106.76 6.14 296.6 23.29 106.46 119.18 6.36 296.8 21.88 116.66 129.76 6.55 296.9 20.47 125.13 138.54 6.71 297.0 19.06 130.33 145.60 7.64 297.0 17.65 132.66 149.39 8.36 297.1 16.24 133.22 150.31 8.54 297.1 14.82 132.70 149.46 8.38 297.1 13.41 131.51 147.53 8.01 297.0 12.00 129.91 144.92 7.51 297.0 10.59 128.05 141.91 6.93 297.0 9.18 125.22 138.64 6.71 297.0 7.76 121.14 134.40 6.63 296.9 6.35 115.84 128.90 6.53 296.9 4.94 109.36 122.19 6.41 296.8 3.53 101.76 114.30 6.27 296.7 2.12 93.06 105.29 6.11 296.6 0.71 83.32 95.18 5.93 296.5 0.00 72.56 84.03 5.73 296.4 0.00 61.51 72.56 5.53 296.3 '· 0.00 50.65 61.51 5.33 296.1 0.00 40.57 50.85 5.14 296.0 0.00 30.91 40.57 4.83 295.9 0.00 21.87 30.91 4.52 295.7 0.00 13.42 21.87 4.22 295.6 0.00 5.97 13.42 3.73 29.5.4 0.00 0.15 5.97 2.91 295.1 0.00 0.00 0.15 0.13 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 9 297.1 D.A.# a w II) Ci!~ Q. ... f £ e 52.3 11.7 cfs cfs 0.0 0.00 2.2 3.47 4.5 7.17 6.7 9.71 8.9 12.36 11.1 15.20 13.4 17.66 15.6 20.21 17.8 22.82 20.1 25.35 22.3 27.87 24.5 30.39 26.7 32.87 29.0 35.32 31.2 37.74 33.4 40.12 35.6 43.28 37.9 46.24 40.1 48.64 42.3 50.71 44.6 52.57 46.8 54.29 49.0 55.94 51.2 57.95 51.8 58.38 50.6 57.17 49.5 55.94 48.4 54.68 47.3 53.41 46.2 52.11 45.1 50.80 44.0 49.46 42.6 48.17 41.7 46.87 40.6 45.44 39.5 44.02 38.4 42.61 37.3 41.00 36.2 39.07 35.0 35.18 33.9 33.93 32.8 32.82 31.7 31.70 30.6 30.59 29.5 29.47 28.4 28.36 27.2 27.25 26.1 26.13 25.0 25.02 23.9 23.90 22.8 22.79 52 58 D.A.# 0 .... ~ I: ...: ... • ... ~ j( e w 59..4 11.7 els els 0.0 0.00 2.5 2.53 5.1 5.06 7.6 7.59 10.1 10.11 12.6 12.64 15.2 15.17 17.7 17.70 20.2 20.23 22.8 22.76 25.3 25.29 27.8 27.81 30.3 30.34 32.9 32.87 35.4 35.40 37.9 37.93 40.5 40.46 43.0 42.99 45.5 45.51 48.0 48.04 50.6 50.57 53.1 53.10 55.6 55.63 58.2 58.16 58.7 58.74 57.5 57.47 56.2 56.21 54.9 54.95 53.7 53.68 52.4 52.42 51.2 51.15 49.9 49.89 48.6 48.62 47.4 47.36 46.1 46.10 44.6 44.83 43'.6 43.57 42.3 42.30 41.0 41.04 39.8 39.77 38.5 38.51 37.2 37.24 36.0 35.96 34.7 34.72 33.5 33.45 32.2 32.19 30.9 30.92 29.7 29.66 28.4 28.39 27.1 27.13 25.9 25.87 59 59 9731pnd1.xls Exhibit 0-1 D.A.# O.A.# D.A.# -s; Q Q. ~ w 3:; m g ~ ~ ~ On 3.6 12.2 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.4 1.2 1.6 1.0 0.7 2.4 3.2 1.5 1.1 3.6 4.7 2.0 1.5 4.9 6.3 2.5 1.8 6.1 7.9 3.0 2.2 7.3 9.5 3.5 2.6 8.5 11.1 4.0 2.9 9.7 12.6 4.5 3.3 10.9 14.2 5.0 3.6 12.2 15.8 5.5 3.5 11.6 15.0 6.0 3.3 10.9 14.2 6.5 3.1 10.3 13.4 7.0 2.9 9.7 12.6 7.5 2.7 9.1 11.9 8.0 2.6 8.5 11.1 8.5 2.4 7.9 10.3 9.0 2.2 7.3 9.5 9.5 2.0 6.7 8.7 10.0 1.8 6.1 7.9 10.5 1.6 5.5 7.1 11.0 1.5 4.9 6.3 11.5 1.3 4.3 5.5 12.0 1.1 3.6 4.7 12.5 0.9 3.0 4.0 13.0 0.7 2.4 3.2 13.5 0.5 1.8 2.4 14.0 0.4 1.2 1.6 14.5 0.2 0.6 0.8 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 12 16 0.00 indicates inital condition EXHIBIT "0·1" PROPOSED DETENTION PONO ROUTING WOODCREEK DETENTION FACH.ITY #1 Pond Routina EVENT• 100 ~ g c i ~ 0 1:1 ... ~ !: i i + le ~ c. .. c iii cfs cfs cfs cfs ft 1.58 0.00 0.00 0.00 294.7 4.74 0.00 1.58 1.39 294.8 7.90 0.00 4.74 2.77 295.1 11.06 1.66 7.90 3.12 295.2 14.22 5.42 12.72 3.65 295.4 17.38 11.34 19.65 4.15 295.6 20.55 19.83 28.73 4.45 295.7 23.71 30.73 40.38 4.83 295.9 26.87 44.03 54.43 5.20 296.1 30.03 59.90 70.89 5.50 296.2 30.82 78.25 89.93 5.84 296.4 29.24 96.71 109.07 6.18 296.7 27.66 112.99 125.95 6.48 296.8 26.08 127.16 140.65 6.74 297.0 24.50 135.03 153.24 9.10 297.1 22.92 138.90 159.53 10.31 297.1 21.34 140.32 161.82 10.75 297.1 19.76 140.21 161.65 10.72 297.1 18.17 139.18 159.97 10.40 297.1 16.59 137.56 157.35 9.89 297.1 15.01 135.60 154.16 9.28 297.1 13.43 133.41 150.61 8.60 297.1 11.85 131.09 146.84 7.88 297.0 10.27 128.69 142.94 7.13 297.0 8.69 125.54 138.96 6.71 297.0 7.11 120.97 134.23 6.63 296.9 5.53 115.04 128.08 6.52 296.9 3.95 107.81 120.58 6.38 296.8 2.37 99.30 111.76 6.23 296.7 0.79 89.58 101.67 6.05 296.6 0.00 78.68 90.37 5.85 296.4 0.00 67.41 78.68 5.64 296.3 0.00 56.54 67.41 5.43 296.2 0.00 46.06 56.54 5.24 296.1 0.00 36.04 46.06 5.01 296.0 0.00 26.67 36.04 4.68 295.8 0.00 17.91 26.67 4.38 295.7 0.00 9.72 17.91 4.10 295.5 0.00 3.08 9.72 3.32 295.3 0.00 0.00 3.08 2.59 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 11 297.1 DA# 0 .J ~ l ~o gf 58.9 11.7 cfs cfs 0.0 0.00 2.5 3.90 5.0 7.79 7.5 10.64 10.0 13.68 12.5 16.68 15.0 19.48 17.5 22.37 20.0 25.25 22.6 28.05 25.1 30.90 27.6 33.75 30.1 36.55 32.6 39.32 35.1 44.19 37.6 47.90 40.1 50.85 42.6 53.32 45.1 55.51 47.6 57.51 50.1 59.40 52.6 61.23 55.1 63.01 57.6 64.77 58.2 64.93 57.0 63.59 55.7 62.23 54.5 60.84 53.2 59.43 52.0 58.00 50.7 56.54 49.4 55.08 48.2 53.63 46.9 52.18 45.7 50.69 44.4 49.12 43.2 47.56 41.9 46.02 40.7 43.99 39.4 42.01 36.2 38.17 36.9 36.91 35.7 35.66 34.4 34.<41 33.2 33.15 31.9 31.90 30.6 30.65 29.4 29.40 28.1 28.14 26.9 26.89 25.6 25.64 58 65 D.A.# Cl .J ~ t: <~ .!! ~!!! ~ g~ 66.8 11.7 cfs cfs 0.0 0.00 2.8 2.84 5.7 5.69 8.5 8.53 11.4 11.38 14.2 14.22 17.1 17.07 19.9 19.91 22.8 22.75 25.6 25.60 28.4 28.44 31.3 31.29 34.1 34.13 37.0 36.98 39.8 39.82 42.7 42.67 45.5 45.51 48.4 48.35 51.2 51.20 54.0 54.04 56.9 56.89 59.7 59.73 62.6 62.58 65.4 65.42 66.1 66.07 64.7 64.65 63.2 63.23 61.8 61.81 60.4 60.36 59.0 58.96 57.5 57.54 56.1 56.12 54.7 54.70 53.3 53.27 51.9 51.85 50.4 50.43 49.0 49.01 47.6 47.58 46.2 46.16 44.7 44.74 43.3 43.32 41.9 41.90 40.5 40.47 39.1 39.05 37.6 37.63 36.2 36.21 34.8 34.79 33.4 33.36 31.9 31.94 30.5 30.52 29.1 29.10 66 66 9731pnd1.xls Exhibit D-1 i' ~ CJ WOODCREEK DETENTION FACILITY #1 5 Year Event Hydrograph Pond 40 .00 35.00 30.00 25 .00 20 .00 15 .00 10.00 5 .00 0 .00 ~~:::;:::===========;:::=:~~~~..__~~--+--_J 0 .00 2 .00 4 .00 6 .00 8.00 10.00 Tlme(min.) 12 .00 14.00 16.00 18 .00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exh ibit D-2 50.00 45.00 40.00 35.00 30.00 i' .2. 25.00 a 20 .00 15 .00 10.00 5.00 0 .00 0 .00 2 .00 4 .00 6 .00 WOODCREEK DETENTION FACILITY #1 10 Year Event Hydrograph Pond 8.00 10.00 Tlme(min.) 12 .00 14.00 16.00 18.00 20.00 --3A --38 --COMB INED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 WOODCREEK DETENTION FACILITY #1 25 Year Event Hydrograph Pond 50.00 40.00 ~ .2. 30.00 a 20 .00 10.00 0 .00 ~~;::::============::::==~~~~--+--_:_:__J 0 .00 2 .00 4 .00 6 .00 8.00 10.00 Tlme(min.) 12 .00 14 .00 16 .00 18.00 20.00 --3A --38 --COMBINED --Qn+1 --Prop 1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exh ibit 0-2 WOODCREEK DETENTION FACILITY #1 50 Year Event Hydrograph Pond 60.00 50.00 30 .00 20 .00 10.00 0 .00 ~~~~~=================;~~;;;::;::::::::...._---+ _______ J 0 .00 2 .00 4 .00 6 .00 8.00 10.00 Time(mln.) 12 .00 14.00 16.00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 ~ 0 WOODCREEK DETENTION FACILITY #1 100 Year Event Hydrograph Pond 60.00 50.00 40.00 30.00 20.00 10.00 0.00 ~~~===========;::=:~~~~....._-+----+--_J 0.00 2 .00 4 .00 6 .00 8 .00 10.00 Tlme(min.) 12.00 14.00 16.00 18 .00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 0.090 0 .080 0 .070 0 .060 1 I°''° 0 .040 0.030 0 .020 0 .010 WOODCREEK DETENTION FACILITY #1 Stage-Storage Curve 0 .000+-~~~~-+--411...._~~ ...... =-~~~-+-~~~~-+~~~~---11--~~~~+-~~~~-t-~~~~-t-~~~~~ 294 294 .5 295 295 .5 296 296 .5 297 297 .5 298 298 .5 Elevation (msl) Exhibit 0-3 i f 25.000 ~ i5 WOODCREEK DETENTION FACILITY #1 Stage-Discharge Curve 0 .000 +---------l-......,::___--+-----+------+------+------+------+------+-------4 294.0 294.5 295.0 295 .5 296.0 296.5 297 .0 297 .5 298 .0 298 .5 Elevation (msl) Exhibit 0-3 D.A.# D.A.# D.A.# • .t: a Q. w t z iii 8 "CJ ~ ~ ~ Co 3.2 3.6 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 0.4 0.7 1.0 0.6 0.7 1.4 1.5 1.0 1.1 2.0 2.0 1.3 1.5 2.7 2.5 1.6 1.8 3.4 3.0 1.9 2.2 4.1 3.5 2.2 2.5 4.8 4.0 2.6 2.9 5.5 4.5 2.9 3.3 6.1 5.0 3.2 3.6 6.8 5.5 3.0 3.4 6.5 6.0 2.9 3.3 6.1 8.5 2.7 3.1 5.8 7.0 2.6 2.9 5.5 7.5 2.4 2.7 5.1 8.0 2.2 2.5 4.8 8.5 2.1 2.4 4.4 9.0 1.9 2.2 4.1 9.5 1.8 2.0 3.8 10.0 1.6 1.8 3.4 10.5 1.4 1.6 3.1 11.0 1.3 1.5 2.7 11.5 1.1 1.3 2.4 12.0 1.0 1.1 2.0 12.5 0.8 0.9 1.7 13.0 0.6 0.7 1.4 13.5 0.5 0.5 1.0 14.0 0.3 0.4 0.7 14.5 0.2 0.2 0.3 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 4 7 0.00 indicateS lnital OO'ldition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING ·WOODCREEK DETENTION FACILITY 12 Pond Routlna EVENT• 5 g c -§ ~ 0 t: -;:> + -"CJ • + ~ c & c > E. ~ le ii> dt cfs cfs cfs cfs ft 0.68 0.00 0.00 0.00 289.5 2.05 0.00 0.68 0.57 289.6 3.41 0.00 2.05 1.70 289.7 4.78 0.00 3.41 2.84 289.8 6.14 0.00 4.78 3.97 289.9 7.51 0.00 6.14 4.81 290.0 8.88 0.00 7.51 4.92 290.0 10.24 0.00 8.88 5.03 290.1 11.61 0.00 10.24 5.13 290.1 12.97 1.12 11.61 5.24 290.1 13.31 3.21 14.09 5.44 290.2 12.83 5.26 16.52 5.63 290.2 11.95 6.40 17.89 5.74 290.2 11.26 6.79 18.35 5.78 290.2 10.58 6.54 18.06 5.76 290.2 9.90 5.76 17.13 5.68 290.2 9.22 4.53 15.66 5.57 290.2 8.53 2.92 13.75 5.41 290.2 7.85 1.00 11.46 5.23 290.1 7.17 0.00 6.85 5.02 290.1 6.49 0.00 7.17 4.89 290.0 5.80 0.00 6.49 4.83 290.0 5.12 0.00 5.80 4.78 290.0 4.44 0.00 5.12 4.26 289.9 3.75 0.00 4.44 3.69 289.9 3.07 0.00 3.75 3.12 289.6 2.39 0.00 3.07 2.55 289.8 1.71 0.00 2.39 1.99 289.7 1.02 0.00 1.71 1.42 289.7 0.34 0.00 1.02 0.85 289.6 0.00 0.00 0.34 0.28 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 6 290.2 D.A.# 0 w en o ...I~ IU N l ~o§ E g: ~ 52.4 14.1 cfs cfs 0.0 0.00 1.9 2.42 3.7 5.42 5.6 8.41 7.4 11.40 9.3 14.09 11.1 16.06 13.0 18.02 14.9 19.99 16.7 21.96 18.6 24.01 20.4 26.06 22.3 28.03 24.1 29.92 26.0 31.75 27.9 33.54 29.7 35.28 31.6 36.98 33.4 38.66 35.3 40.31 37.1 42.03 39.0 43.83 40.9 45.64 42.7 46.97 44.6 48.26 46.4 49.55 48.3 50.84 50.1 52.13 52.0 53.42 51.6 52.49 50.7 51.00 < 49.8 49.79 48.9 48.86 47.9 47.93 47.0 47.00 46.1 46.07 45.1 45.14 44.2 44.21 43.3 43.29 42.4 42.36 41.4 41.43 40.5 40.50 39.6 39.57 38.6 38.64 37.7 37.72 36.8 36.79 35.9 35.86 34.9 34.93 34.0 34.00 33.1 33.07 32.1 32.14 52 53 D.A.# ..... ~ ti c( ~ • .... !!! ~ E~ 54.6 14.1 cfs cfs 0.0 0.00 1.9 1.94 3.9 3.87 5.8 5.81 7.7 7.74 9.7 9.68 11.6 11.62 13.6 13.55 15.5 15.49 17.4 17.42 19.4 19.36 21.3 21.30 23.2 23.23 25.2 25.17 27.1 27.11 29.0 29.04 31.0 30.98 32.9 32.91 34.8 34.85 36.8 36.79 38.7 38.72 40.7 40.66 42.6 42.59 44.5 44.53 46.5 46.47 48.4 48.40 50.3 50.34 52.3 52.27 54.2 54.21 53.8 53.84 52.9 52.87 51.9 51.90 50.9 50.94 50.0 49.97 49.0 49.00 48.0 48.03 47.1 47.06 46.1 46.10 45.1 45.13 44.2 44.16 43.2 43.19 42.2 42.22 41.3 41.26 40.3 40.29 39.3 39.32 38.4 38.35 37.4 37.38 36.4 36.42 35.4 35.45 34.5 34.48 33.5 33.51 54 54 9731 pnd2.xls Exhibit E· 1 D.A.# D.A.# D.A.# 'II: -a 0 w • .... z 8' iii ~ 8 :s ~ On 3.6 4.0 Tc 5.0 6.0 Inc 0.5 Time ct. ct. 0.0 0.0 0.0 0.0 0.5 0.4 0.4 0.8 1.0 0.7 0.8 1.5 1.5 1.1 1.2 2.3 2.0 1.4 1.6 3.0 2.5 1.8 2.0 3.8 3.0 2.1 2.4 4.6 3.5 2.5 2.8 5.3 4.0 2.9 3.2 6.1 4.5 3.2 3.6 6.8 5.0 3.6 4.0 7.6 5.5 3.4 3.8 7.2 6.0 3.2 3.6 6.8 6.5 3.0 3.4 6.5 7.0 2.9 3.2 6.1 7.5 2.7 3.0 5.7 6.0 2.5 2.8 5.3 8.5 2.3 2.6 4.9 9.0 2.1 2.4 4.6 9.5 2.0 2.2 4.2 10.0 1.8 2.0 3.8 10.5 1.6 1.8 3.4 11.0 1.4 1.6 3.0 11.5 1.2 1.4 2.7 12.0 1.1 1.2 2.3 12.5 0.9 1.0 1.9 13.0 0.7 0.8 1.5 13.5 0.5 0.6 1.1 14.0 0.4 0.4 0.8 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 0.0 20.0 0.0 o.o 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 PEAK FLOWS 4 4 a 0.00 indieatel inital condition EXHIBIT "E-1· PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 12 Pond Routlna EVENT• 10 c ~ g ~ l! -:I t --i~ ~ + Jj + c i! c ~ cfs cfs cfs cfs ft 0.76 0.00 0.00 0.00 289.5 2.28 0.00 0.76 0.63 289.6 3.60 0.00 2.28 1.90 269.7 5.33 0.00 3.80 3.16 289.8 6.85 0.00 5.33 4.43 290.0 8.37 0.00 6.85 4.86 290.0 9.89 0.00 8.37 4.96 290.1 11.41 0.00 9.89 5.11 290.1 12.94 0.96 11.41 5.23 290.1 14.46 3.05 13.90 5.42 290.2 14.84 6.08 17.51 5.71 290.2 14.08 6.95 20.92 5.98 290.3 13.32 10.73 23.03 6.15 290.3 12.56 11.56 24.05 6.23 290.4 11.80 11.66 24.14 6.24 290.4 11.03 11.08 23.45 6.19 290.3 10.27 9.96 22.12 6.08 290.3 9.51 8.37 20.23 5.93 290.3 8.75 6.40 17.89 5.74 290.2 7.99 4.10 15.15 5.52 290.2 7.23 1.53 12.09 5.28 290.1 6.47 0.00 8.76 5.02 290.1 5.71 0.00 6.47 4.83 290.0 4.95 0.00 5.71 4.74 290.0 4.19 0.00 4.95 4.11 289.9 3.42 0.00 4.19 3.48 289.9 2.66 0.00 3.42 2.85 289.8 1.90 0.00 2.66 2.21 289.7 1.14 0.00 1.90 1.58 289.7 0.38 0.00 1.14 0.95 289.6 0.00 0.00 0.38 0.32 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 6 290.4 D.A.# 0 w ~g~ N ~ ee:~ Q. 59.1 14.1 cfs cfs 0.0 0.00 2.1 2.73 4.2 6.08 6.3 9.44 8.4 12.80 10.5 15.33 12.6 17.55 14.7 19.76 16.7 21.98 18.8 24.27 20.9 26.65 23.0 29.01 25.1 31.26 27.2 33.45 29.3 35.55 31.4 37.59 33.5 39.58 35.6 41.52 37.7 43.43 39.8 45.30 41.9 47.15 44.0 48.98 46.1 50.89 48.2 52.90 50.2 54.36 52.3 55.82 54.4 57.28 56.5 58.74 58.6 60.20 58.2 59.17 57.2 57.49 56.1 56.13 55.1 55.08 54.0 54.03 53.0 52.99 51.9 51.94 50.9 50.89 49.8 49.85 48.8 48.80 47.8 47.75 46.7 46.71 45.7 45.66 44.6 44.61 43.6 43.57 42.5 42.52 41.5 41.47 40.4 40.43 39.4 39.38 38.3 38.33 37.3 37.29 36.2 36.24 59 60 D.A.# .J~ ~ .ct-• ..... Ill ~ g~ 61.6 14.1 cfs cfs 0.0 0.00 2.2 2.18 4.4 4.37 6.5 6.55 8.7 8.73 10.9 10.91 13.1 13.10 15.3 15.28 17.5 17.46 19.6 19.64 21.8 21.83 24.0 24.01 26.2 26.19 28.4 28.37 30.6 30.56 32.7 32.74 34.9 34.92 37.1 37.11 39.3 39.29 41.5 41.47 43.7 43.65 45.8 45.84 48.0 48.02 50.2 50.20 52.4 52.38 54.6 54.57 56.7 56.75 58.9 58.93 61.1 61.11 60.7 60.70 59.6 59.61 58.5 58.52 57.4 57.42 56.3 56.33 55.2 55.24 54.2 54.15 53.1 53.06 52.0 51.97 50.9 50.88 49.8 49.78 48.7 48.69 47.6 47.60 46.5 46.51 45.4 45.42 44.3 44.33 43.2 43.2<4 42.1 <42.15 41.1 41.05 40.0 39.96 38.9 38.87 37.8 37.78 61 61 9731pnd2.>ds Exhibit E-1 D.A.# D.A.# D.A.# II: l 0 ! 8' m f 8 ~ ~ Qo 4.6 5.2 Tc 5.0 5.0 Inc 0.5 Time ct. ct. 0.0 0.0 0.0 0.0 0.5 0.5 0.5 1.0 1.0 0.9 1.0 2.0 1.5 1.4 1.6 2.9 2.0 1.8 2.1 3.9 2.5 2.3 2.6 4.9 3.0 2.7 3.1 5.9 3.5 3.2 3.6 6.8 4.0 3.7 4.2 7.8 4.5 4.1 4.7 8.8 5.0 4.6 52 9.8 5.5 4.3 4.9 9.3 6.0 4.1 4.7 8.8 6.5 3.9 4.4 8.3 7.0 3.7 4.2 7.8 7.5 3.4 3.9 7.3 8.0 3.2 3.6 6.8 8.5 3.0 3.4 6.4 9.0 2.7 3.1 5.9 9.5 2.5 2.9 5.4 10.0 2.3 2.6 4.9 10.5 2.1 2.3 4.4 11.0 1.8 2.1 3.9 11.5 1.6 1.8 3.4 12.0 1.4 1.6 2.9 12.5 1.1 1.3 2.4 13.0 0.9 1.0 2.0 13.5 0.7 0.8 1.5 14.0 0.5 0.5 1.0 14.5 0.2 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 5 5 10 o.oo indicates inltal c:oodition EXHIBIT-·E-1" PROPOSED DETENTION PONO ROUTING WOODCREEK DETENTION FACILITY #2 Pond Routlna EVENT• 50 g c i i :2 8 .... + h I! I ~ c ~ cfs cfs cts ct. ft 0.98 0.00 0.00 0.00 289.5 2.93 0.00 0.98 0.81 289.6 4.88 0.00 2.93 2.44 289.8 6.84 0.00 4.88 4.06 289.9 8.79 0.00 6.84 4.86 290.0 10.75 0.00 8.79 5.02 290.1 12.70 0.40 10.75 5.17 290.1 14.65 2.38 13.10 5.36 290.1 16.61 5.68 17.03 5.67 290.2 18.56 10.10 22.29 6.09 290.3 19.05 15.46 28.67 6.60 290.4 18.07 20.72 34.51 6.90 290.5 17.10 24.80 38.80 7.00 290.6 16.12 27.76 41.90 7.07 290.6 15.14 29.64 43.88 7.12 290.6 14.17 30.51 44.78 7.14 290.6 13.19 30.40 44.67 7.14 290.6 12.21 29.37 43.59 7.11 290.6 11.23 27.45 41.58 7.06 290.6 10.26 24.70 38.69 6.99 290.6 9.28 21.14 34.96 6.91 290.5 8.30 16.94 30.42 6.74 290.5 7.33 12.59 25.25 6.33 290.4 6.35 8.11 19.92 5.90 290.3 5.37 3.52 14.46 5.47 290.2 4.40 0.00 8.89 5.03 290.1 3.42 0.00 4.40 3.65 289.9 2.44 0.00 3.42 2.84 289.8 1.47 0.00 2.44 2.03 289.7 0.49 0.00 1.47 1.22 289.6 0.00 0.00 0.49 0.41 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.6 D.A.# 0 w 1110 ~g5 l ~If~ 76.5 14.1 cfs cfs 0.0 0.00 2.7 3.52 5.4 7.86 8.1 12.20 10.9 15.71 13.6 18.58 16.3 21.45 19.0 24.35 21.7 27.38 24.4 30.51 27.1 33.73 29.8 36.74 32.6 39.55 35.3 42.34 38.0 45.10 40.7 47.83 43.4 50.54 46.1 53.23 48.8 55.89 51.5 58.54 54.3 61.16 57.0 63.71 59.7 66.01 62.4 68.30 65.1 70.58 67.8 72.84 70.5 74.18 73.2 76.09 76.0 77.99 75.4 76.66 74.1 74.49 72.7 72.73 71.4 71.37 70.0 70.01 68.7 68.66 67.3 67.30 65.9 65.94 64.6 64.59 63.2 63.23 61.9 61.87 60.5 60.52 59.2 59.16 57.8 57.81 56.4 56.45 55.1 55.09 53.7 53.74 52.4 52.38 51.0 51.02 49.7 49.67 48.3 48.31 47.0 46.95 76 78 D.A.# ~~ $:! • ~!! ~ e~ 79.8 14.1 cfs cfs 0.0 0.00 2.8 2.83 5.7 6.66 8.5 8.48 11.3 11.31 14.1 14.14 17.0 16.97 19.8 19.80 22.6 22.63 25.5 25.45 28.3 28.28 31.1 31.11 33.9 33.94 36.8 36.77 39.6 39.59 42.4 42.42 45.3 45.25 48.1 48.08 50.9 50.91 53.7 53.73 56.6 56.56 59.4 59.39 62.2 62.22 65.0 65.05 67.9 67.88 70.7 70.70 73.5 73.53 76.4 76.36 79.2 79.19 78.6 78.65 77.2 77.23 75.8 75.82 74.4 74.41 73.0 72.99 71.6 71.58 70.2 70.16 68.7 68.75 67.3 67.34 65.9 65.92 84.5 64.51 63.1 63.09 61.7 61.68 60.3 60.26 58.9 58.85 57.4 57.44 56.0 56.02 54.6 54.61 53.2 53.19 51.8 51.78 50.4 50.37 49.0 48.95 79 79 9731pnd2.>ds 8ctlibit E-1- DA# D.A.# DA# -s: 0 Q. w i z iii ... 8 'g_ ~ ~ :c Qp 4.1 4.6 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.4 0.5 0.9 1.0 0.8 0.9 1.7 1.5 1.2 1.4 2.6 2.0 1.6 1.8 3.5 2.5 2.0 2.3 4.3 3.0 2.4 2.8 5.2 3.5 2.8 3.2 6.1 4.0 3.2 3.7 6.9 4.5 3.7 4.1 7.8 5.0 4.1 4.6 8.7 5.5 3.9 4.4 8.2 6.0 3.7 4.1 7.8 6.5 3.4 3.9 7.4 7.0 3.2 3.7 6.9 7.5 3.0 3.5 6.5 8.0 2.8 3.2 6.1 8.5 2.6 3.0 5.6 9.0 2.4 2.8 5.2 9.5 2.2 2.5 4.8 10.0 2.0 2.3 4.3 10.5 1.8 2.1 3.9 11.0 1.6 1.8 3.5 11.5 1.4 1.6 3.0 12.0 1.2 1.4 2.6 12.5 1.0 1.2 2.2 13.0 0.8 0.9 1.7 13.5 0.6 0.7 1.3 14.0 0.4 0.5 0.9 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 . 0.0 0.0 19.0 o.o· 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 5 9 0. 00 indicates inital condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING -wooocREEK DETENTION FACLITY 12 Pond Routlna EVENT• 25 ~ c ~ .... ~ 0 = + t .... ]i c I .,, & ~ ~ £ cfs cfs cfs cfs ft 0.87 0.00 0.00 0.00 289.5 2.60 0.00 0.87 0.72 289.6 4.33 0.00 2.60 2.16 289.7 6.07 0.00 4.33 3.60 289.9 7.80 0.00 6.07 4.80 290.0 9.53 0.00 7.80 4.94 290.0 11.27 0.00 9.53 5.08 290.1 13.00 0.84 11.27 5.22 290.1 14.73 3.00 13.84 5.42 290.2 16.47 6.27 17.73 5.73 290.2 16.90 10.48 22.74 6.13 290.3 16.03 14.38 27.38 6.50 290.4 15.17 16.94 30.42 6.74 290.5 14.30 18.43 32.10 6.84 290.5 13.43 19.02 32.73 6.85 290.5 12.57 18.76 32.45 6.85 290.5 11.70 17.70 31.32 6.81 290.5 10.83 16.08 29.40 6.66 290.5 9.97 13.99 26.92 6.46 290.4 9.10 11.51 23.96 6.23 290.4 8.23 8.69 20.61 5.96 290.3 7.37 5.59 16.92 5.67 290.2 6.50 2.26 12.96 5.35 290.1 5.63 0.00 8.76 5.02 290.1 4.77 0.00 5.63 4.68 290.0 3.90 0.00 4.77 3.96 289.9 3.03 0.00 3.90 3.24 289.8 2.17 0.00 3.03 2.52 289.8 1.30 0.00 2.17 1.80 289.7 0.'43 0.00 1.30 1.08 289.6 0.00 0.00 0.43 0.36 289.6 0.00 0.00 0.00 0.00 289.5 '·· 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 1 290.5 DA# Iii en o ~&5 ~ ;_ gg:~ 67.6 14.1 cfs cfs 0.0 0.00 2.4 3.12 4.8 6.95 7.2 10.79 9.6 14.38 12.0 16.92 14.4 19.45 16.8 21.98 19.2 24.58 21.6 27.29 24.0 30.08 26.3 32.85 28.7 35.48 31.1 37.98 33.5 40.39 35.9 42.78 38.3 45.14 40.7 47.38 43.1 49.58 45.5 51.74 47.9 53.87 50.3 55.97 52.7 58.05 55.1 60.11 57.5 62.17 59.9 63.85 62.3 65.52 64.7 67.20 67.1 68.87 66.6 67.69 65.4 65.78 64.2 64.22 63.0 63.02 61.8 61.82 60.6 60.63 59.4 59.43 58.2 58.23 57.0 57.03 55.6 55.84 54.6 54.64 53.4 53.44 52.2 52.24 51.0 51.04 49.8 49.85 48.6 48.65 47.5 47.45 46.3 46.25 45.1 45.06 43.9 43.86 42.7 42.66 41.5 41.46 67 69 DA# ~ ~~ ~ • .. e1'.:i w 70.4 14.1 cfs cfs 0.0 0.00 2.5 2.50 5.0 4.99 7.5 7.49 10.0 9.99 12.5 12.49 15.0 14.98 17.5 17.48 20.0 19.98 22.5 22.48 25.0 24.97 27.5 27.47 30.0 29.97 32.5 32.47 35.0 34.96 37.5 37.46 40.0 39.96 42.5 42.45 45.0 44.95 41.<4 47.45 49.9 49.95 52.4 52.44 54.9 54.94 57.4 57.44 59.9 59.94 62.4 62.43 64.9 64.93 67.4 67.43 69.9 69.93 69.4 69.45 68.2 68.20 67.0 66.95 65.7 65.70 64.5 64.45 63.2 63.21 62.0 61.96 60.7 60.71 59.5 59.46 58.2 58.21 57.0 56.96 55.7 55.71 54.5 54.46 53.2 53.22 52.0 51.97 50.7 50.72 49.5 49.47 48.2 48.22 47.0 46.97 45.7 45.72 44.5 44.48 43.2 43.23 70 70 9731pnd2.xle Exhibit E-1 DA# DA# D.A.# '41: .r; c Q, Ill l! z ~ iii ~ "C >-~ !! :i: On 5.1 5.8 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.5 0.6 1.1 1.0 1.0 1.2 2.2 1.5 1.5 1.7 3.3 2.0 2.0 2.3 4.4 2.5 2.6 2.9 5.5 3.0 3.1 3.5 6.6 3.5 3.6 4.1 7.7 4.0 4.1 4.7 8.7 4.5 4.6 5.2 9.8 5.0 5.1 5.8 10.9 5.5 4.9 5.5 10.4 6.0 4.6 5.2 9.8 6.5 4.4 4.9 9.3 7.0 4.1 4.7 8.7 7.5 3.8 4.4 8.2 8.0 3.6 4.1 7.7 8.5 3.3 3.8 7.1 9.0 3.1 3.5 6.6 9.5 2.8 3.2 6.0 10.0 2.6 2.9 5.5 10.5 2.3 2.6 4.9 11.0 2.0 2-.3· 4.4 11.5 1.8 2.0 3.8 12.0 1.5 1.7 3.3 12.5 1.3 1.5 2.7 13.0 1.0 1.2 2.2 13.5 0.8 0.9 1.6 14.0 0.5 0.6 1.1 14.5 0.3 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 5 6 11 0. 00 indicates inital condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING -WOOOCREEK DETENTION FACIUTY tl2 Pond Routlna EVENT• 100 ~ c c l! 0 ..... i ~ + ~ 'g ~ c ..... + & ~ o.!! .E li.W cfs cfs cfs cfs ft 1.09 0.00 0.00 0.00 289.5 3.28 0.00 1.09 0.91 289.6 5.47 0.00 3.28 2.73 289.8 7.66 0.00 5.47 4.54 290.0 9.84 0.00 7.66 4.93 290.0 12.03 0.00 9.84 5.10 290.1 14.22 1.48 12.03 5.28 290.1 16.40 4.56 15.69 5.57 290.2 18.59 8.99 20.96 5.99 290.3 20.78 14.55 27.58 6.51 290.4 21.32 21.50 35.33 6.92 290.5 20.23 28.64 42.82 7.09 290.6 19.14 34.40 48.87 7.24 290.6 18.04 38.85 53.54 7.35 290.7 16.95 42.04 56.89 7.42 290.7 15.86 44.04 58.99 7.47 290.7 14.76 44.91 59.90 7.50 290.7 13.67 44.69 59.67 7.49 290.7 12.58 43.44 58.36 7.46 290.7 11.48 41.21 56.02 7.40 290.7 10.39 38.04 52.69 7.33 290.7 9.30 33.98 48.43 7.22 290.6 8.20 29.07 43.28 7.10 290.6 7.11 23.35 37.27 6.96 290.5 6.01 16.97 30.46 6.74 290.5 4.92 10.69 22.99 6.15 290.3 3.83 4.49 15.61 5.56 290.2 2.73 0.00 8.32 4.98 290.0 1.64 0.00 2.73 2.27 289.7 0.55 0.00 1.64 1.36 289.7 0.00 0.00 0.55 0.45 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 ·289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.7 DA# c ~ ..J ~~ N Q, c( 0 :::> £ ... g::o g Ci: 86.2 14.1 cfs cfs 0.0 0.00 3.1 3.96 6.1 8.84 9.2 13.71 12.2 17.15 15.3 20.38 18.3 23.61 21.4 26.96 24.4 30.43 27.5 34.01 30.6 37.47 33.6 40.70 36.7 43.90 39.7 47.07 42.8 50.20 45.8 53.31 48.9 56.38 51.9 59.43 55.0 62.46 58.1 65.46 61.1 68.44 64.2 71.39 67.2 74.32 70.3 77.24 73.3 80.08 76.4 82.54 79.4 85.00 82.5 87.48 85.6 87.83 85.0 88.33 83.4 83.90 '· 81.9 81.92 80.4 80.39 78.9 78.86 77.3 77.33 75.8 75.80 74.3 74.28 72.7 72.75 71.2 71.22 69.7 69.69 68.2 68.17 66.6 66.64 65.1 65.11 63.6 63.58 62.1 62.05 60.5 60.53 59.0 59.00 57.5 57.47 55.9 55.94 54.4 54.42 52.9 52.89 86 88 DA# ..J~ ~ c( i:: • ...~ >< e~ w 89.9 14.1 cfs cfs 0.0 0.00 3.2 3.19 6.4 6.37 9.6 9.56 12.7 12.74 15.9 15.93 19.1 19.11 22.3 22.30 25.5 25.48 28.7 28.67 31.9 31.86 35.0 35.04 38.2 38.23 41.4 41.41 44.6 44.60 47.8 47.78 51.0 50.97 54.2 54.15 57.3 57.34 60.5 60.52 63.7 63.71 66.9 66.90 70.1 70.08 73.3 73.27 76.5 76.45 79.6 79.64 82.8 82.82 86.0 86.01 89.2 89.19 88.6 88.59 87.0 88.99 85.4 85.40 83.8 83.81 82.2 82.22 80.6 80.62 79.0 79.03 77'.4 77.44 75.8 75.84 74.3 74.25 72.7 72.66 71.1 71.07 69.5 69.47 67.9 67.88 66.3 66.29 64.7 64.69 63.1 63.10 61.5 61.51 59.9 59.92 58.3 58.32 56.7 56.73 55.1 55.14 89 89 9731pnd2.xls Eld\ibit E-1 WOODCREEK DETENTION FACILITY #2 5 Year Event Hydrograph Pond 60.00 -...----------------------------------. -, ,_ ......... ....... 50 .00 ....... ....... ....... ....... ....... 40.00 ~ ..!:!.. 30 .00 a 20.00 10.00 0 .00 ~~~~::::::::========:::::~~~~iiii;;;;;:::::......~----1---_J 0.00 2 .00 4 .00 6 .00 8.00 10.00 Tlme(mln.) 12 .00 14 .00 16.00 18.00 20.00 --4A --4B --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 9/29/98 Exhibit E-2 WOODCREEK DETENTION FACILITY #2 10 Year Event Hydrograph Pond 70.00 -----------------------------------. 60 .00 -........ L '-....._ .............. ....... ........ ....... 50.00 40 .00 30 .00 20.00 10.00 0.00 ~~~::::::::::::::=::::::~~~ii;;;::,,...._-+---+-_J 0 .00 2.00 4.00 6 .00 8.00 10 .00 Time (min.) 12 .00 14 .00 16.00 18.00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 9/29/98 Exhibit E-2 WOODCREEK DETENTION FACILITY #2 25 Year Event Hydrograph Pond 70.00 60.00 50 .00 ~ ..2. 40 .00 a 30.00 20.00 10.00 0 .00 ~~~~:::::::::========::===~~~~iiiii;;;;;;::::......----i---+--_J 0 .00 2.00 4.00 6.00 8.00 10.00 Tlme(mln.) 12 .00 14 .00 16 .00 18 .00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 9/29/98 Exhibit E-2 ~ ~ a WOODCREEK DETENTION FACILITY #2 50 Year Event Hydrograph Pond 80.00 -....... ~ ...... ....... ....... ....... 70.00 -....... ....... ....... 60 .00 50.00 40 .00 30 .00 20.00 10.00 0.00 ~:::::=====~~~~ 0 .00 2.00 4 .00 6 .00 8.00 10.00 Time(mln.) 12.00 14.00 16.00 18 .00 20.00 --4A --48 --COMB INED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 9/29/98 Exhibit E-2 100.00 90.00 80 .00 70 .00 60.00 ~ ~ 50 .00 a 40 .00 30 .00 20 .00 10 .00 0 .00 0 .00 2.00 4 .00 6 .00 WOODCREEK DETENTION FACILITY #2 100 Year Event Hydrograph Pond 8.00 10.00 Time(min.) 12 .00 -....... 14 .00 ......... ....... ....... ....... 16.00 ...... ....... ....... 18.00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 9/29/98 Exhibit E-2 0.160 0.140 0.120 ~ 0.100 ! t c;; 0 .080 0 .060 0 .040 0.020 WOODCREEK DETENTION FACILITY #2 Stage-Storage Curve 0 .000+-~~~~.._~~~--.-===~~~~+-~~~~+-~~~~+-~~~~t--~~~~t--~~~--1~~~~~ 289 289 .5 290 290 .5 291 291.5 292 292 .5 293 293 .5 Elevation (msl) Exhibit E-3 100.000 75 .000 50.000 25.000 WOODCREEK DETENTION FACILITY #2 Stage-Discharge Curve 0 .000+-~~~--4...,:=--~~-+-~~~~-+-~~~~+-~~~-4~~~~-+-~~~~-+-~~~~+--~~~-1 289.0 289 .5 290.0 290.5 291 .0 291 .5 292 .0 292 .5 293 .0 293 .5 Elevation (msl) Exhibit E-3 DA# D.A.# '!I: &. 0 c. ~ Ill .. f I .., ~ ~ Qp 18.4 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 6.0 0.0 0.0 9.0 2.1 2.1 10.0 4.3 4.3 11.0 6.4 6.4 12.0 8.6 6.6 13.0 10.7 10.7 14.0 12.9 12.9 15.0 15.0 15.0 16.0 17.1 17.1 17.0 17.9 17.9 18.0 16.8 16.8 19.0 15.6 15.8 20.0 14.7 14.7 21.0 13.6 13.6 22.0 12.5 12.5 23.0 11.5 11.5 24.0 10.4 10.4 25.0 9.3 9.3 26.0 6.3 8.3 27.0 7.2 7.2 26.0 6.1 6.1 29.0 5.0 5.0 30.0 4.0 4.0 31.0 2.9 2.9 32.0 1.8 1.8 33.0 0.6 0.8 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 . 0.0 36.0 o.o· 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 18 18 0.00 indicates inital condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING -wooocREEK DeTENTION FACILITY '3 Pond Routina EVENT"' 5 DA# c g c ~ < l! ..... i 0 !: + -g !: Q. ~ + c 0 ~ en if ~ lr .!i N 66.0 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.14 0.00 0.00 0.00 280.7 0.0 6.43 0.00 2.14 1.56 281.0 3.6 10.71 2.90 6.43 1.76 281.1 72 14.99 9.60 13.61 2.01 261.2 10.8 19.28 19.84 24.59 2.38 261.4 14.5 23.56 33.36 39.11 2.67 261.7 16.1 27.84 50.01 56.94 3.47 282.0 21.7 32.13 70.58 n.65 3.63 282.1 25.3 35.03 95.04 102.71 3.83 262.3 26.9 34.73 121.97 130.08 4.05 282.5 32.5 32.59 148.17 156.70 4.26 262.7 36.1 30.44 171.84 180.76 4.46 282.9 39.6 26.30 193.03 202.29 4.63 263.0 43.4 26.16 211.69 221.33 4.72 263.1 47.0 24.02 228.44 238.05 4.60 263.2 50.6 21.86 242.71 252.46 4.67 263.3 54.2 19.73 254.72 264.56 4.93 263.3 57.8 17.59 264.48 274.45 4.96 263.4 61.5 15.45 272.04 262.08 5.02 263.4 65.1 13.31 277.39 267.49 5.05 263.5 64.7 11.17 260.56 290.70 5.06 263.5 62.9 9.03 281.61 291.75 5.07 283.5 61.1 6.68 280.51 290.64 5.06 263.5 59.3 4.74 277.30 267.39 5.05 283.5 57.4 '· 2.60 272.00 282.04 5.02 283.4 55.6 0.76 264.64 274.60 4.98 283.4 53.6 0.00 255.52 265.40 4.94 283.3 52.0 0.00 245.74 255.52 4.89 283.3 50.2 0.00 238.06 245.74 4.84 263.2 48.4 0.00 226.47 236.06 4.79 263.2 46.6 0.00 216.98 226.47 4.75 283.1 44.8 0.00 207.58 216.98 4.70 283.1 43.0 0.00 196.27 207.58 4.65 263.0 41.2 0.00 169.07 198.27 4.60 263.0 39.4 0.00 160.03 189.07 4.52 282.9 37.6 0.00 171.12 180.03 4.45 282.6 35.8 0.00 162.36 171.12 4.38 282.8 34.0 0.00 153.74 162.36 4.31 282.7 32.1 0.00 145.26 153.74 4.24 282.7 30.3 0.00 136.91 145.26 4.17 282.6 28.5 0.00 128.70 136.91 4.11 282.6 26.7 0.00 120.62 126.70 4.04 282.5 24.9 0.00 112.67 120.62 3.96 282.4 23.1 5 283.5 65 DA# 0 w al ~i~ 0 ..... ~ Q. £ g ~ 65.3 14.2 cfs cts 0.0 0.00 4.6 4.61 9.2 9.22 13.8 13.83 18.4 18.43 23.0 23.04 27.7 27.65 32.3 32.26 36.9 36.87 41.5 46.65 46.1 55.08 50.7 63.54 55.3 72.14 59.9 60.65 64.5 69.68 63.4 92.35 61.1 93.86 58.8 95.39 56.5 96.92 54.2 98.42 51.9 99.90 49.6 101.30 47.3 102.70 45.0 104.06 42.7 105.45 40.4 106.61 36.1 106.16 35.6 105.49 33.5 101.39 31.2 97.28 28.8 93.17 26.5 69.04 24.2 64.90 21.9 80.75 19.6 76.60 17.3 72.44 15.0 66.28 12.7 64.12 10.4 59.96 8.1 55.60 5.8 51.64 3.5 47.47 1.2 43.29 0.0 40.21 0.0 38.33 0.0 36.45 0.0 34.58 0.0 32.70 0.0 30.83 0.0 28.95 0.0 27.08 65 108 D.A.# ~~ t! ~ !!! ~ g~ w 109.1 25.6 cfs cfs 0.0 0.00 4.3 4.26 8.5 8.53 12.8 12.79 17.1 17.05 21.3 21.31 25.6 25.58 29.6 29.84 34.1 34.10 36.4 38.36 42.6 42.63 46.9 46.69 51.2 51.15 55.4 55.42 59.7 59.68 63.9 63.94 66.2 68.20 72.5 72.47 76.7 76.73 81.0 80.99 65.3 85.25 89.5 89.52 93.6 93.76 98.0 98.04 102.3 102.31 106.6 106.57 106.2 106.25 106.1 106.12 104.0 103.98 101.9 101.65 99.7 99.72 97.6 97.59 95.5 95.46 93.3 93.33 91.2 91.20 69.1 89.06 86.9 66.93 84.8 84.60 62.7 62.67 60.5 80.54 78.4 76.41 76.3 76.26 74.1 74.14 72.0 72.01 69.9 69.88 67.8 67.75 65.6 65.62 63.5 63.49 61.4 61.36 59.2 59.23 57.1 57.09 108 108 9731pnd3.>ds Exhibit F·1 0.A.# O.A.# 'II: a Q l! w z I I iii 8 Qo 20.6 Tc 8.S Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.4 2.4 10.0 4.8 4.8 11.0 7.2 7.2 12.0 9.6 9.6 13.0 12.0 12.0 14.0 14.4 14.4 15.0 16.8 16.8 16.0 19.2 19.2 17.0 20.1 20.1 18.0 18.9 18.9 19.0 17.7 17.7 20.0 16.5 16.5 21.0 15.3 15.3 22.0 14.1 14.1 23.0 12.9 12.9 24.0 11.7 11.7 25.0 10.5 10.5 26.0 9.3 9.3 27.0 8.1 8.1 28.0 6.9 6.9 29.0 5.7 5.7 30.0 4.5 4.5 31.0 3.3 3.3 32.0 2.1 2.1 33.0 0.9 0.9 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 20 20 0. ()() iridlcatM -inital condition EXHIBIT "f·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 13 Pond Routing EVENT• 10 O.A.# g c ~ :!:! 0 < -= 0 t + --l~ 8-I c & ~ ~ Ii. 74.7 18.3 er. cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.40 0.00 0.00 0.00 280.7 0.0 7.20 0.00 2.40 1.63 281.0 4.1 12.00 3.62 7.20 1.79 281.1 8.2 16.80 11.47 15.62 2.07 281.2 12.3 21.60 23.27 28.27 2.50 281.5 16.4 26.40 38.75 44.87 3.06 281.8 20.5 31.20 58.08 65.14 3.53 282.1 24.5 36.00 81.83 89.28 3.73 282.2 28.6 39.25 109.91 117.82 3.95 282.4 32.7 38.91 140.76 149.17 4.20 282.6 36.8 36.51 170.77 179.67 4.45 282.8 40.9 34.11 197.97 207.28 4.65 283.0 45.0 31.71 222.54 232.08 4.77 283.2 49.1 29.31 244.48 254.25 4.88 283.3 53.2 26.91 263.83 273.79 4.98 283.4 57.3 24.51 280.62 290.74 5.06 283.5 61.4 22.11 294.86 305.13 5.13 283.5 65.4 19.71 306.59 316.97 5.19 283.6 69.5 17.31 315.82 326.30 5.24 283.7 73.6 14.91 322.59 333.14 5.27 283.7 73.2 12.51 326.92 337.51 5.29 283.7 71.1 10.11 328.83 339.43 5.30 283.7 69.1 7.71 328.34 338.94 5.30 283.7 67.1 5.31 325.48 336.06 5.29 283.7 65.0 2.91 320.28 330.80 5.26 283.7 63.0 0.86 312.75 323.19 5.22 283.6 80.9 0.00 303.25 313.60 5.17 283.6 58.9 0.00 293.01 303.25 5.12 283.5 56.6 0.00 262.86 293.01 5.07 283.5 54.8 0.00 272.61 262.86 5.02 283.4 52.7 0.00 262.86 272.81 4.97 263.4 50.7 0.00 253.01 262.86 4.93 283.3 48.6 0.00 243.25 253.01 4.88 263.3 46.6 0.00 233.60 243.25 4.63 283.2 44.6 0.00 224.03 233.60 4.76 283.2 42.5 0.00 214.56 224.03 4.74 263.1 40.5 0.00 205.18 214.56 4.69 283.1 38.4 0.00 195.90 205.18 4.64 283.0 36.4 0.00 186.74 195.90 4.56 263.0 34.3 0.00 177.73 166.74 4.51 262.9 32.3 0.00 168.67 177.73 4.43 282.6 30.2 0.00 160.14 168.87 4.36 282.8 28.2 0.00 151.56 160.14 4.29 282.7 26.1 5 283.7 74 0.A.# Q w ID CllQ 0 ~§§ l g e: a: 73.8 14.2 cfs cfs 0.0 0.00 5.2 5.20 10.4 10.39 15.6 15.59 20.8 20.78 26.0 25.98 31.2 31.18 36.4 36.37 41.6 41.57 46.8 52.48 52.0 61.93 57.2 71.50 62.4 81.21 67.5 91.06 72.7 100.82 71.5 103.86 68.9 105.58 66.3 107.32 63.7 109.06 61.1 110.75 58.5 112.37 55.9 113.97 53.3 115.56 50.7 117.13 48.1 118.70 45.5 120.25 42.9 121.79 40.3 118.78 37.7 114.16 35.1 109.52 32.5 104.88 29.9 100.22 27.3 95.55 24.7 90.87 22.1 66.18 19.5 81.49 16.9 76.79 14.3 72.10 11.7 67.41 9.1 62.71 6.5 56.02 3.9 53.33 1.4 46.64 0.0 45.20 0.0 43.11 0.0 41.02 0.0 38.91 0.0 36.79 0.0 34.67 0.0 32.55 0.0 30.44 73 122 --·-O.A.# -'~ tJ • ~ !!'l ~ 2raci 124.1 25.6 cfs cfs 0.0 0.00 4.8 4.85 9.7 9.70 14.5 14.55 19.4 19.40 24.2 24.25 29.1 29.10 33.9 33.95 38.8 38.79 43.6 43.64 48.5 48.49 53.3 53.34 58.2 58.19 63.0 63.04 67.9 67.89 72.7 72.74 77.6 77.59 82.4 82.44 87.3 87.29 92.1 92.14 97.0 96.99 101.8 101.84 106.7 106.69 111.5 111.54 116.4 116.38 121.2 121.23 123.1 123.14 120.7 120.72 118.3 118.29 115.9 115.87 113.4 113.44 111.0 111.02 106.6 108.60 106.2 106.17 103.7 103.75 101.3 101.32 98.9 98.90 96.5 96.47 94.0 94.05 91.6 91.62 89.2 89.20 86.8 86.77 84.3 64.35 81.9 81.92 79.5 79.50 77.1 77.07 74.6 74.65 72.2 72.22 69.8 69.80 67.4 67.38 65.0 64.95 123 123 9731 pnd3.xl• El<hibit F· 1 D.A.# D.A.# Ill: -&. 0 ~ I! I .., § ,, ~ II.JO 23.5 Tc 8.6 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.7 2.7 10.0 5.5 5.5 11.0 8.2 8.2 12.0 11.0 11.0 13.0 13.7 13.7 14.0 16.4 16.4 15.0 19.2 19.2 16.0 21.9 21.9 17.0 22.9 22.9 18.0 21.5 21.5 19.0 20.1 20.1 20.0 18.8 18.8 21.0 17.4 17-4 22.0 16.0 16.0 23.0 14.7 14.7 24.0 13.3 13.3 25.0 11.9 11.9 26.0 10.6 10.6 27.0 9-2 9.2 28.0 7.8 7.8 29.0 6.5 6.5 30.0 5.1 5.1 31.0 3.7 3.7 32.0 2.3 2.3 33-0 1.0 1.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 o.o· 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 23 23 o. oo indicail9s in ital condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING -WOODCREEK DETENTION FACIUTY t3 Pond Routing EVENT• 25 D.A.# I i 8 <( ... 0 + ... ... ~£ ... i + a. c ~ 1.i fJ £ au; 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 260.7 0.0 0.00 0.00 0.00 0.00 260.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.74 0.00 0.00 0.00 280.7 0.0 8.22 0.00 2.74 1.64 281.0 4.7 13.69 4.57 8.22 1.82 281.1 9_4 19.17 13.94 18-26 2.16 281.3 14.1 24.65 27.78 33.11 2.66 281.6 18.7 30.13 45.80 52.43 3.32 281.9 23.4 35.60 68.69 75_93 3.62 282.1 28.1 41.08 96.60 104.29 3.85 282.3 32.8 44.80 129.46 137.68 4.11 282.6 37_5 44-41 165.45 174.26 4-41 282.8 42.2 41.67 200.52 209.85 4.67 283.0 46.9 38.93 232.54 242.19 4.82 283.2 51.6 36.19 261.53 271.47 4.97 283.4 56.2 33-45 287.53 297.72 5.10 283.5 60.9 30.71 310.56 320.98 5.21 283.6 65.6 27.97 330.65 341.27 5.31 283.7 70.3 25.23 347.83 358.62 5-40 283.8 75.0 22.50 362.13 373.07 5.47 283.9 79_7 19.76 373.58 384.63 5.52 284.0 84.4 17.02 382.06 393.34 5.64 284.0 83.9 14.28 387.50 399.08 5.79 284.0 81.5 11.54 390.07 401.76 5.85 284.1 79.2 8.80 389.91 401.62 5.65 284.0 76.8 6.06 387.16 398.72 5.78 284.0 74_5 '·· 3.32 381.95 393.23 5.64 284.0 72.1 0.98 374.22 385.28 5.53 284.0 69.8 0.00 364.25 375.20 5.48 283.9 67.5 0.00 353.40 364.25 5.42 283.9 65.1 0.00 342.66 353.40 5_37 283.8 62.8 0.00 332.02 342.66 5.32 283.7 60-4 0.00 321.49 332.02 5.27 283.7 58.1 0.00 311.06 321.49 5.21 283.6 55.7 0.00 300.74 311.06 5.16 283.6 53-4 0.00 290.52 300.74 5.11 263.5 51.1 0.00 280.39 290.52 5.06 283.5 48.7 0.00 270.37 280.39 5.01 283.4 46-4 0.00 260.44 270.37 4.96 283-4 44.0 0.00 250.62 260.44 4.91 283.3 41.7 0.00 240.89 250.62 4.87 283.3 39.3 0.00 231.25 240.89 4.82 283.2 37.0 0.00 221.71 231.25 4.77 283.2 34.6 0.00 212.26 221.71 4.72 283.1 32.3 0.00 202.91 212.26 '4.68 263.1 30.0 6 284.1 84 D.A.# fit m 11>0 0 ~~~ l ..... 0 0 ~ f a: 84.3 14.2 cfs cfs 0.0 0.00 5_9 5.95 11.9 11.89 17.8 17.84 23.8 23.78 29.7 29.73 35.7 35.67 41.6 41.62 47.6 47.56 53.5 59.83 59.5 70.65 65-4 81.62 71.3 92.76 77.3 104.04 83.2 114.98 81.8 118.46 78.8 120.44 75.9 122.45 72.9 124.43 69.9 126.30 66.9 128.16 64.0 130.00 61.0 131.83 58.0 133.65 55.1 135.45 52.1 137.23 49.1 139.00 46.1 135.64 43.2 130.47 40.2 125.22 37.2 119.90 34.2 114.51 31-3 109.06 28.3 103.63 25.3 98.26 22.4 92.89 19.4 87.52 16.4 82.15 13.4 76.79 10.5 71.42 7.5 66.05 4.5 60.68 1.5 55.32 0.0 51.38 0.0 48.99 0.0 46.59 0.0 44.20 0.0 41.81 0.0 39.42 0.0 37.03 0.0 34.64 83 139 D.A.# Cl ...I~ tJ <(fl) • ..... -~ e 1':i 142.5 25.6 cfs cfs 0.0 0.00 5.6 5.57 11.1 11.14 16.7 16.71 22.3 22.26 27.8 27.86 33.4 33.41 39.0 38.96 44.6 44.55 50.1 50.12 55.7 55.69 61.3 61.26 66.8 66.83 72.4 72.40 78.0 77.97 83.5 83.54 89.1 89.10 94_7 94.67 100.2 100.24 105.8 105.81 111.4 111.38 116.9 116.95 122.5 122.52 128.1 128.09 133.7 133.66 139-2 139.23 141.4 141.42 138.6 138.63 135.8 135.85 133.1 133.06 130.3 130.28 127.5 127.50 124.7 124.71 121.9 121.93 119.1 119.14 116.4 116.36 113.6 113.57 110.6 110.79 108.0 108.00 105.2 105.22 102.4 102.44 99.7 99.65 96.9 96.87 94.1 94.08 91.3 91.30 88.5 88.51 85.7 85.73 82.9 82.94 80.2 80.16 77.4 77.37 74.6 74.59 141 1'41 9731 pnd3.Jds E.xt\ibit F-1 D.A.# D.A.# 'II: -a 0 i w z .., ! 'O ~ Qo 26.5 Tc 8.6 inc 1.0 Time cb cf11 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 6.0 0.0 0.0 9.0 3.1 3.1 10.0 6.2 6.2 11.0 9.3 9.3 12.0 12.4 12.4 13.0 15.5 15.5 14.0 18.6 18.6 15.0 21.7 21.7 16.0 24.8 24.8 17.0 25.9 25.9 18.0 24.3 24.3 19.0 22.8 22.8 20.0 21.2 21.2 21.0 19.7 19.7 22.0 18.1 18.1 23.0 16.6 16.6 24.0 15.0 15.0 25.0 13.5 13.5 26.0 11.9 11.9 27.0 10.4 10.4 28.0 8.8 8.8 29.0 7.3 7.3 30.0 5.7 5.7 31.0 4.2 4.2 32.0 2.7 2.7 33.0 1.1 1.1 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 26 26 0. 00 indicalel inltal condition EXHIBIT "F·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY t3 Pond Routina EVENT• 50 D.A.# z c & -8 < i 0 ..!. ... + .... 1~ 1 ! ~ c A Ni l!.l 97.1 18.3 cfs cf11 cfs cb ft cb 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 260.7 0.0 '3.09 0.00 0.00 0.00 280.7 0.0 9.28 0.00 3.09 1.65 281.0 5.3 15.47 5.56 9.28 1.86 281.1 10.6 21.66 16.52 21.03 2.26 281.3 15.9 27.84 32.51 38.18 2.84 281.7 21.3 34.03 53.36 60.35 3.49 282.0 26.6 40.22 79.97 87.39 3.71 282.2 31.9 46.41 112.25 120.19 3.97 282.4 37.2 50.60 150.09 158.65 4.28 282.7 42.5 50.16 191.46 200.70 4.62 283.0 47.8 47.07 231.98 241.62 4.82 283.2 53.2 43.97 269.04 279.05 5.01 283.4 58.5 40.88 302.67 313.01 5.17 283.6 63.8 37.79 332.91 343.55 5.32 283.8 69.1 34.69 359.78 370.69 5.46 283.9 74.4 31.60 383.14 394.47 5.67 284.0 79.7 28.51 402.37 414.74 6.18 284.1 85.1 25.41 417.68 430.87 6.59 284.2 90.4 22.32 429.28 443.09 6.91 284.2 95.7 19.22 437.36 451.60 7.12 284.3 95.1 16.13 442.08 456.58 7.25 284.3 92.5 13.04 443.63 458.21 7.29 284.3 89.8 9.94 442.17 456.67 7.25 284.3 87.1 6.85 437.84 452.11 7.14 284.3 84.5 3.75 430.80 444.69 6.95 284.2 81.8 1.10 421.17 434.55 6.69 284.2 79.2 0.00 409.53 422.28 6.38 284.1 76.5 0.00 397.42 409.53 6.05 284.1 73.9 0.00 385.94 397.42 5.74 284.0 71.2 0.00 374.87 385.94 5.53 284.0 68.5 0.00 363.92 374.87 5.48 283.9 65.9 0.00 353.08 363.92 5.42 283.9 63.2 0.00 342.34 353.08 5.37 283.8 60.6 0.00 331.71 342.34 5.32 283.7 57.9 0.00 321.18 331.71 5.26 283.7 55.2 0.00 310.76 321.18 5.21 283.6 52.6 0.00 300.44 310.76 5.16 283.6 49.9 0.00 290.22 300.44 5.11 283.5 47.3 0.00 280.10 290.22 5.06 283.5 44.6 0.00 270.07 280.10 5.01 283.4 42.0 0.00 260.15 270.07 4.96 283.4 39.3 0.00 250.33 260.15 4.91 283.3 36.6 0.00 240.60 250.33 4.86 263.3 34.0 7 284.3 96 D.A.# 0 w ID .J ~ fil 0 1 ~o~ 2f 95.4 14.2 cf11 cb 0.0 0.00 6.7 6.73 13.5 13.47 20.2 20.20 26.9 26.93 33.7 33.66 40.4 40.40 47.1 47.13 53.9 53.86 60.6 67.56 67.3 79.82 74.1 92.27 80.8 104.90 87.5 117.60 94.3 129.87 92.6 133.83 89.3 136.09 85.9 138.38 82.5 140.53 79.2 142.66 75.8 144.78 72.4 146.88 69.1 148.96 65.7 151.13 62.3 153.59 59.0 155.95 55.6 158.21 522 154.49 48.9 148.59 45.5 142.61 42.1 136.54 38.8 130.40 35.4 124.19 32.0 117.91 28.7 111.57 25.3 105.22 21.9 98.89 18.6 92.65 15.2 86.57 11.8 80.49 8.5 74.41 5.1 66.34 1.8 62.26 0.0 57.80 0.0 55.09 0.0 52.38 0.0 49.67 0.0 46.97 0.0 44.26 0.0 41.55 0.0 38.85 94 158 D.A.# 0 .J z $3 ~~ .!! ~ e~ 162.0 25.6 cfs cfs 0.0 0.00 6.3 8.33 12.7 12.66 19.0 18.99 25.3 25.32 31.7 31.65 38.0 37.98 44.3 44.31 50.6 50.64 57.0 56.97 63.3 63.30 69.6 69.63 76.0 75.96 82.3 82.29 88.6 88.62 95.0 94.95 101.3 101.28 107.6 107.61 113.9 113.94 120.3 120.27 126.6 126.60 132.9 132.93 139.3 139.26 145.6 145.59 151.9 151.92 158.3 158.26 160.7 160.74 157.6 157.58 154.4 154.41 151.2 151.25 148.1 148.08 144.9 144.92 141.8 141.75 138.6 138.59 135.4 135.42 132.3 132.26 129.1 129.09 125.9 125.93 122.8 122.76 119.6 119.60 116.4 116.43 113.3 113.27 110.1 110.10 106.9 106.94 103.8 103.77 100.6 100.61 97.4 97.44 94.3 94.28 91.1 91.11 87.9 87.95 84.8 84.78 161 181 9731 pnd3.lds Exhibit F-1 DA# DA# ... a fil I! z 8' iii J I ~ Qp 29.8 Tc 8.6 Inc 1.0 Time eta eta 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 3.5 3.5 10.0 6.9 6.9 11.0 10.4 10.4 12.0 13.9 13.9 13.0 17.4 17.4 14.0 20.8 20.8 15.0 24.3 24.3 16.0 27.8 27.8 17.0 29.0 29.0 18.0 27.3 27.3 19.0 25.6 25.6 20.0 23.8 23.8 21.0 22.1 22.1 22.0 20.3 20.3 23.0 18.6 18.6 24.0 16.9 16.9 25.0 15.1 15.1 26.0 13.4 13.4 27.0 11.7 11.7 28.0 9.9 9.9 29.0 8.2 8.2 30.0 6.4 6.4 31.0 4.7 4.7 32.0 3.0 3.0 33.0 1.2 1.2 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 29 29 o.oo indicates inital condition EXHIBIT "F·1" PROPOSED DETENTION POND ROUTING -WOODCREEK DETENTION FACILITY t3 Pond Routina EVENT• 100 0.A.# g ~ l:? 8 4( i 0 ... ... 'C " ... + g. ~ ~ & c ~ ! N ~iii ~ 109.6 18.3 eta eta cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 3.47 0.00 0.00 0.00 280.7 0.0 10.42 0.15 3.47 1.66 281.0 6.0 17.37 6.76 10.57 1.90 281.2 12.0 24.31 19.40 24.12 2.36 281.4 18.0 31.26 37.67 43.71 3.02 281.8 24.0 38.20 61.80 68.93 3.56 282.1 30.0 45.15 92.38 100.01 3.81 282.3 36.0 52.10 129.31 137.53 4.11 282.6 42.0 56.81 172.48 181.40 4.46 282.9 48.0 56.31 219.77 229.29 4.76 283.1 54.0 52.84 266.09 276.08 4.99 283.-4 60.0 49.36 308.53 318.93 5.20 283.6 66.0 45.89 347.11 357.89 5.39 283.8 72.0 42.-42 381.74 393.00 5.63 284.0 78.0 38.95 411.31 424.16 6.42 284.1 84.0 35.47 436.08 450.25 7.09 284.3 90.0 32.00 456.29 471.55 7.63 284.3 96.0 28.53 472.18 488.29 8.06 284."4 102.0 25.05 483.96 500.71 8.37 284.5 108.0 21.58 491.85 509.02 8.58 284.5 107.4 18.11 496.04 513.43 8.70 284.5 104.4 14.63 496.72 514.15 8.71 284.5 101.4 11.16 494.07 511.36 8.64 284.5 98.4 7.69 488.26 505.23 8.49 284.5 95.4 '·· 4.22 479.45 495.95 8.26 284.4 92.4 1.24 467.79 483.66 7.94 284.4 89.4 0.00 453.90 469.03 7.57 284.3 86.4 0.00 439.54 453.90 7.18 284.3 83.4 0.00 425.90 439.54 6.82 284.2 80.4 0.00 412.97 425.90 6.47 284.2 7.7.4 0.00 400.69 412.97 6.14 284.1 74.4 0.00 389.04 400.69 5.83 284.0 71.4 0.00 377.95 389.04 5.55 284.0 68.4 0.00 366.96 377.95 5.49 283.9 65.4 0.00 356.09 366.96 5.44 283.9 62.4 0.00 345.32 356.09 5.38 283.8 59.4 0.00 334.66 345.32 5.33 283.8 56.4 0.00 324.11 334.66 5.28 283.7 53.4 0.00 313.65 324.11 5.23 283.7 50.4 0.00 303.30 313.65 5.18 283.6 47.4 0.00 293.05 303.30 5.12 283.5 44.4 0.00 282.91 293.05 5.07 283.5 41.4 0.00 272.86 282.91 5.02 283.4 38.4 9 284.5 108 DA# Q w m ~~~ 0 l e R: a: 107.5 14.2 cfs cfs 0.0 0.00 7.6 7.58 15.2 15.17 22.8 22.75 30.3 30.34 37.9 37.92 45.5 45.50 53.1 53.09 60.7. 60.67 68.3 75.92 75.8 89.74 83.4 103.79 91.0 118.03 98.6 132.16 106.2 145.99 104.4 150.47 100.6 153.03 96.8 155.54 93.0 157.97 89.2 160.39 85.4 162.79 81.6 165.24 77.8 168.24 74.0 171.11 70.2 173.86 66.4 176.50 62.6 179.02 58.9 174.79 55.1 168.11 51.3 161.34 47.5 154.47 43.7 147.53 39.9 140.50 36.1 133.39 32.3 126.23 28.5 119.05 24.7 111.89 20.9 104.75 17.1 97.63 13.3 90.53 9.6 83.46 5.8 76.61 2.0 69.76 0.0 64.74 0.0 61.68 0.0 58.63 0.0 55.58 0.0 52.53 0.0 49.48 0.0 46.43 0.0 43.38 106 179 DA# 0 ... ~ t! 4( I-• I-!!! ;n g~ 183.4 25.6 cfs cfs 0.0 0.00 7.2 7.17 14.3 14.33 21.5 21.50 28.7 28.66 35.8 35.83 43.0 42.99 50.2 50.16 57.3 57.32 64.5 64.49 71.7 71.65 78.8 78.82 86.0 85.98 93.1 93.15 100.3 100.31 107.5 107.48 114.6 114.64 121.8 121.81 129.0 128.97 136.1 136.14 143.3 143.31 150.5 150.41 157.6 157.64 164.8 164.80 172.0 171.97 179.1 179.13 182.0 181.95 178.4 178.37 174.8 174.79 171.2 171.20 167.6 167.62 164.0 164.04 160.5 160.46 156.9 156.87 153.3 153.29 149.7 149.71 146.1 146.13 142.5 142.54 139.0 138.96 135.4 135.38 131.8 131.80 128.2 128.21 124.6 124.63 121.0 121.05 117.5 117.47 113.9 113.88 110.3 110.30 106.7 106.72 103.1 103.13 99.6 99.55 96.0 95.97 182 182 9731pnd3.xls Exhibit F-1 WOODCREEK DETENTION FACILITY #3 5 Year Event Hydrograph Pond 120.00 -.---------------------------------- 100.00 80 .00 / / / / / / / / / ...... ............. ...... ...... ....... ...... ....... ....... i' .2. 60 .00 a 40 .00 20 .00 o .oo~---+---"''--+----+----+----+----1---..;;;;:a..-1------1 0 .00 5 .00 10.00 15.00 20 .00 Tlme(min.) 25 .00 30 .00 35 .00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 WOODCREEK DETENTION FACILITY #3 10 Year Event Hydrograph Pond 140.00 ......--------------------------------- 120.00 100.00 80.00 60.00 40.00 20.00 0 .00 JL_---1_-./l.~~==:::;::=========::::;:==-_J 0 .00 5 .00 10.00 15 .00 20 .00 Time(min.) 25.00 30.00 35 .00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 ~ WOODCREEK DETENTION FACILITY #3 25 Year Event Hydrograph Pond 160.00 -.----------------------------------. 140 .00 - 120.00 100.00 / / / / / / / / ~ 80.00 a 60.00 40.00 0 .00 JL-~-.--...c!~~==::;::===:===~===::::;::==:=-J 0 .00 5.00 10.00 15 .00 20.00 Time(min.) 25.00 30.00 35.00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 160.00 . 140 .00 120 .00 100 .00 80.00 60 .00 40.00 20 .00 WOODCREEK DETENTION FACILITY #3 50 Year Event Hydrograph Pond / / / / / / / / 0 .00 jL __ l---_...~~::::::=::===========::;===-_J 0 .00 5.00 10.00 15 .00 20.00 Time(mln.) 25.00 30 .00 35.00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 180.00 160.00 140.00 120.00 i 100.00 a 80.00 60 .00 40 .00 20.00 WOODCREEK DETENTION FACILITY #3 100 Year Event Hydrograph Pond / / / / / / / / o.oo 1{__--+-_ __.ttt:.~====::::;=============s===-_J 0.00 5 .00 10.00 15.00 20 .00 Tlme(mln.) 25 .00 30.00 35 .00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 0 .600 0 .500 -0 .400 cf u ~ f VI 0 .300 0 .200 0 .100 WOODCREEK DETENTION FACILITY #3 Stage-Storage Curve 0 .000+-~~~-..~ ...... =-~~~~~1--~~~~~-+-~~~~~----i~~~~~~-+-~~~~~-+~~~~~----i 280 281 > 282 283 284 285 286 287 Elevation (msl) Exhibit F-3 i " j 25 .000 Ill i3 WOODCREEK DETENTION FACILITY #3 Stage-Discharge Curve 0 .000+-~~~-.-='---+-~~~~~-+-~~~~~-+~~~~~--+~~~~~---1~~~~~~1--~~~~-----i 280 .0 281.0 282.0 283.0 284 .0 285 .0 286 .0 287 .0 Elevation (msl) Exhibit F-3 g c: 0 ., IV > ~ w wood creek 10 Exhibit G-1 300 -.-~.....l!====================================~t~3-===================================::::::?l.~---.r~~~L-e_ge_n_d-,---~~~ 295 290 285 280 275 270 .2: " u 8. ·o. .. ~ .2: " u 't5 8. j a: :a ~ .. i!: .., "' ~ u l 't5 E l :J ., " .2: " u ~ 0 I ~ "' ~ 8. 0 E l :J ~ .., [ 0 E i a. :J c i 265 -r-~-r~~.--~-.-~--.~~...-~-r~--.--~ ......... ~ ....... ~~ ......... ___.-r~~.--~--~--.~~....-~-r~~--~~ 600 800 1000 1200 1400 1600 1800 2000 2200 2400 Main Channel Distance (ft) WS 100 Yr . Storm WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground HEC-RAS Plan: Plan 01 River: foxfire trib Reach: bib 3 Reach River Sta QTotal Min Ch El W.S. Elev CrttW.S. E.G. Elev E.G. Slooe Vef Chnl Flow Area Top Width Froude#Chl {cfs) {ft) (ft) (ft) (ft) (ft/ft) (fVs) (sq ft) (ft) trib 3 700 311.00 269.30 272.37 271.25 272.56 0.008001 3.90 103.03 45.24 0.44 trib3 700 269.00 269.30 272.17 271.13 272.34 0.008003 3.68 94.05 44.03 0.44 trib 3 700 235.00 269.30 272.00 271.03 272.15 0.008002 3.48 86.57 43.00 0.43 trib.3 700 186.00 269.30 271.72 270.86 . 271.85 0.008003 3.21 74.52 42.44 0.42 tr1b 3 700 146.00 269.30 271.47 270.72 271.57 0.008004 2.94 63.83 41.93 ·0.41 tnb3 760 311.00 270.00 272.89 273.16 0.011576 4.26 78.58 43.00 0.53 trib 3 760 269.00 270.00 272.69 272.94 0.011778 4.09 70.30 41.26 0.52 trib 3 760 235.00 270.00 272.52 272.76 0.011930 3.93 63.49 39.78 0.52 trib 3 780 186.00 270.00 272.25 272.46 0.012350 3.68 53.11 37.40 0.52 trib 3 760 146.00 270.00 272.01 272.19 0.012760 3.43 44.30 35.26 0.52 !rib 3 805 223.00 269.50 273.46 273.62 0.008059 3.25 71.17 41.88 0.42 trib 3 805 193.00 269.50 273.26 273.42 0.008461 3.15 63.16 40.15 0.43 !rib 3 805 169.00 269.50 273.10 272.35 273.24 0.008877 3.07 56.59 38.68 0.43 trib 3 805 134.00 269.50 272.84 272.20 272.97 0.009614 2.91 46.88 36.40 0.44 ~ ~ trib 3 805 105.00 269.50 272.61 272.05 272.72 0.010342 2.75 38.72 34.36 0.45 qi N trib 3 967 223.00 270.71 274.66 273.44 274.82 0.006841 3.17 70.35 35.62 0.40 trib 3 967 193.00 270.71 274.48 273.29 274.62 0.006589 3.01 64.02 33.98 0.39 !rib 3 967 169.00 210.71 274.32 273.14 274.45 0.006373 2.88 58.68 32.53 0.38 trib 3 967 134.00 270.71 274.07. 272.93 274.17 0.005904 2.64 50.74 30.25 0.36 !rib 3 967 105.00 270.71 273~82 272.72 273.91 0.005406 2.40 43.68 28.06 0.34 !rib 3 1267 223.00 274.50 278.24 278.24 279.33 0.033864 10.25 40.67 20.52 0.97 !rib 3 1267 193.00 274.50 278.01 278.01 279.03 0.033665 9.77 36.12 19.36 0.95 !rib 3 1267 169.00 274.50 277.78 277.78 278.76 0.034814 9.47 31.87 18.20 0.96 !rib 3 1267 134.00 274.50 277.44 277.44 278.34 0.035598 8.85 25.99 16.47 0.95 !rib 3 1267 105.00 274.50 277.11 277.11 277.93 0.036953 8.27 20.86 14.79 0.95 !rib 3 1480 186.00 277.50 282.23 282.57 0.007170 5.91 62.13 22.28 0.48 !rib 3 1480 162.00 277.50 281.92 282.24 0.007159 5.65 55.50 21.10 0.47 trib 3 1480 141.00 277.50 281.66 281.96 0.006944 5.34 50.15 20.10 0.46 !rib 3 1480 112.00 277.50 281.24 281.50 0.006753 4.90 42.02 18.46 0.45 trib 3 1480 87.00 277.50 280.83 281.05 0.006483 4.45 34.77 16.88 0.43 HEC-RAS Plan: Plan 01 River. foxflf8 trib Reach: !rib 3 (Continued) Reach River Sta Q Total Min Ch El W.S. Elev CritW.S. E.G. Elev E.G. Slope VelChnl Flow Area Top Width Froude#Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) !rib 3 1622 Culvert trib 3 1623 186.00 276.16 268.14 262.29 266.49 0.000094 4.78 42.07 20.00 0.27 trib 3 1623 162.00 276.16 287.44 281.92 287.75 0.000091 4.48 37.06 4.09 0.26 tnb3 1623 141.00 276.16 285.72 281.59 286.07 0.000137 4.78 30.05 4.05 0.31 trib 3 1623 112.00 276.16 283.55 281.10 263.99 0.000267 5.33 21.32 4.01 0.40 !rib 3 1623 67.00 278.16 282.46 280.64 282.67 0.000343 5.19 16.94 3.99 0.44 trib 3 1626 142.00 281.30 288.07 268.52 0.000200 5.36 28.19 20.00 0.36 trib 3 1626 124.00 281.30 267.36 287.79 0.000221 5.25 24.17 4.08 0.38 !rib 3 1626 108.00 281.30 285.49 286.17 0.000573 6.60 16.62 4.03 0.57 trib3 1626 86.00 281.30 283.77 263.77 285.01 0.002132 8.94 9.71 3.97 1.00 trib 3 1626 67.00 281.30 283.39 283.39 284.44 0.002262 8.24 6.20 3.96 1.01 ~ trib 3 1671 Culvert ~ trib3 1672 142.00 281.52 288.60 283.92 288.65 0.000049 2.62 329.09 75.00 0.18 cp N !rib 3 1672 124.00 261.52 286.34 283.75 288.38 0.000043 2.41 309.75 75.00 0.17 trib 3 1672 106.00 261.52 287.46 263.60 287.51 0.000058 2.52 245.66 69.17 0.19 trib 3 1672 86.00 281.52 286.14 283.37 286.21 0.000097 2.74 163.72 54.85 0.23 trib 3 1672 67.00 281.52 285.48 283.16 285.54 0.000106 2.57 129.84 47.70 0.24 trib 3 1914 142.00 285.50 288.54 288.54 289.32 0.038790 9.29 31.44 21.19 0.98 !rib 3 1914 124.00 285.50 288.37 266.37 289.12 0.039035 8.94 27.98 19.99 0.97 trib 3 1914 108.00 285.50 288.21 288.21 288.92 0.039186 8.59 24.86 18.84 0.97 trib 3 1914 86.00 285.50 287.96 287.96 288.62 0.039349 8.03 20.46 17.08 0.95 tnb3 1914 67.00 285.50 287.71 287.71 288.31 0.040254 7.49 16.38 15.27 0.94 trib 3 2320 99.00 292.50 296.01 294.98 296.22 0.007596 4.65 41.25 22.78 0.45 !rib 3 2320 86.00 292.50 295.80 294.82 296.01 0.007523 4.43 36.80 21.53 0.45 !rib 3 2320 75.00 292.50 295.61 294.67 295.80 0.007508 4.24 32.82 20.34 0.44 trib 3 2320 60.00 292.50 295.32 294.45 295.50 0.007509 3.95 27.19 18.53 0.43 trib 3 2320 47.00 292.50 295.04 294.24 295.19 0.007434 3.64 22.22 16.77 0.42 wood creek 1 O woodcreek10 RS= 2320 Exhibit G-2 RS= 1914 Exhibit G-2 297 .1 294 .12 •Isa&.!• .1 L91iend Legend ws 100 Yr. Storm WS 100 Yr. Storm 296 WS 50 Yr. Storm 292 WS 50 Yr. Storm WS 25 Yr. Storm WS 25 Yr. Storm WS 10Yr. Storm WS 10 Yr. Storm g 295 WS 5 Yr. Storm g 290 WS 5 Yr. Storm c: Ground c: Ground 0 • 0 • .. :; tO Bank Sta Bank Sta > > .9:! 294 .9:! 288 UJ UJ 293 286 292 284 10 15 20 25 30 35 40 0 10 20 30 40 50 Station (ft) Station (ft) woodcreek1 O woodcreek10 RS= 1672 Exhibit G-2 RS= 1671 Exhibit G-2 289f 289f .1 0 Legend 0 Legend 1 1 4 WS 100 Yr . Storm 4 WS 100 Yr. Storm 288 288 WS 50 Yr. Storm WS 50 Yr. Storm 287 WS 25 Yr. Storm 287 WS 25 Yr. Storm WS 10 Yr. Storm WS 10 Yr. Storm g 286 WS 5 Yr. Storm g 286 ws 5 Yr. Storm c: Ground c: Ground 0 285 • 0 285 • "" i tO Bank Sta Bank Sta > > .9:! .9:! UJ 284 UJ 284 283 283 282 282 281 281 0 20 40 60 80 0 20 40 60 80 Station (ft) Station (ft) g c ,g al > ..9! w g c 0 ~ > Q) jjj 289f 288 287 286 285 284 283 282 281 0 290 288 286 284 282 280 278 0 5 1- 5 woodcreek 10 RS= 1671 Exhibit G-2 10 Station (ft) 014 wood creek 10 15 RS = 1623 Exhibit G-2 .014 - 10 Station (ft) - - 15 .12 =1 Legend WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr. Stoon WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta 20 1 ?~ L9ge<1d WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Stoon WS 5 Y!.: Sloon Ground • Bank Sta 20 289 288 287 g 286 c ~ 285 > .!! w 284 283 282 281 290 288 286 g c 0 284 1ii > .!! w 282 280 278 woodcreek10 RS = 1626 Exhibit G-2 ~===::..12.=====zj~:..014=~==-<.__;__-"I ,--...,....----..,--. Legend _..,..,....,..l!!l!!!!!!.,.....,....,......,!!!!!l!!!,.... ____ ...,,,,.. ..... ....,....,._,.1 WS 100 Yr. Sloon 0 5 0 5 10 Station (ft) woodcreek10 15 RS = 1622 Exhibit G-2 10 Station (ft) 15 20 20 WS 50 Yr. Storm WS 25 Yr. Stcxm WS 10Yr. Stoon WS 5 Yr. Sloon Ground • Bank Sta WS 100 Yr. Stoon WS 50 Yr. Stcxm WS 25 Yr. Storm WS 10 Yr. Sloon WS 5 Yr. Storm Ground • Bank Sta .· • --- woodcreek 10 wood creek 1 O RS= 1622 Exhibit G-2 RS= 1480 Exhibit G-2 290 12 .06 286 06 .1 Legend Legend WS 100 Yr. Storm VVS 100 Yr. Storm 288 WS 50 Yr. Storm WS 50 Yr. Storm 284 WS 25 Yr. Storm WS 25 Yr. Storm 286 WS 10 Yr. Storm WS 10 Yr. Storm € WS 5 Yr. Storm € WS 5 Yr. Storm 282 c: 284 Ground c: Ground ~ • :8 • CV Bank Sta CV Ban k Sta > 282 > .9! ..9! 280 w w 280 278 278 276 276 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 Station (ft) Station (ft) woodcreek1 O woodcreek10 RS = 1267 Exhibit G-2 RS= 967 Exhibit G-2 282 12 * 06 12 06 .1 Legend 280 Legend WS 100 Yr. Storm WS 100 Yr. Storm WS 50 Yr. Storm 278 WS 50 Yr. Storm 280 WS 25 Yr. Storm ws 25 Yr. Storm WS 10 Yr. Storm VVS 10 Yr. Storm g WS 5 Yr. Storm € 276 WS 5 Yr. Storm c Ground c: Ground 0 278 • 0 • ~ Bank Sta :; Bank Sta > > Q) ..9! 274 jjj w 276 272 274 270 10 15 20 25 30 35 40 45 50 55 0 20 40 60 80 100 Station (ft) Station (ft) wood creek 1 O RS = 805 Exhibit G-2 275 12 06 Legend WS 100 Yr. Storm 274 WS 50 Yr. Storm WS 25 Yr. Storm 273 WS 10 Yr. Storm g WS 5 Yr. Storm c Ground 0 272 • "" ta BIW!k Sta > ..9i! w 271 270 269 0 10 20 30 40 50 60 70 Station (ft) woodcreek10 wood creek 1 O RS = 760 Exhibit G-2 RS = 700 Exhibit G-2 275 .12 06 274 .1 .06 Legend Legend WS 100 Yr. SIOITn WS 100 Yr. Storm 274 WS 50 Yr. Storm 273 WS 50 Yr. Storm WS 25Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 10 Yr. Storm g 273 WS 5 Yr. Storm g 272 WS 5 Yr. Storm c: Ground c: Ground ~ • ~ • Bank Sta Bank Sta > > a> 272 ..9! 271 iii w 271 270 270 269 0 20 40 60 80 0 20 40 60 80 100 Station (ft) Station (ft) 1········································· FLOOD HYDROGRAPll PJ\CKAGE (llEC-1) SEPTD!BER 1990 VERSION 4.0 RUN DATE 09/22/1998 TIME 10:07:06 • EXHIBIT ''G-3'' x x xxxxxxx xxxxx x x x x x x x x x xx x x x xxxxxxx xxxx x x x x x x x x x x xxxxxxx xxxxx x xxxxx x x x xxx .............................................. u. s. ARMY CORPS or ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET DAVIS, CALil'OlUIIA 95616 (916) 756-1104 THIS PROGJU\K REPLACES ALL PREVIOUS VERSIONS or HEC-1 KNOWN AS HECl (JAN 73)' HEClGS, HEClDB, AND l!EClKW . THE DE!'INITIONS OF VARIABLES -RTIMP-AND -RTIOR-HAVE CHANGED FRC»! THOSE USED llITH THE 1973-STYLE INPUT STRUCTURE . THE DEFINITION or -AMSKK-ON IU!-CARD llA5 CllJINGED NITH REVISIONS lll\TED 28 SEP Bl. THIS IS THE FORTIWff7 VERSION NEii OPTIONS: DM!BREAK OUTFLOll SUl!KERGENCE , SINGLE EVENT D11MAGE Cl\LCULATION, DSS:llRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT D£SIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC llAVE: NEii FINITE DIFFERENCE ALGORITHM LINE 3 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20 21 22 23 24 25 26 . 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 LINE HEC-1 INPUT ID ••.•••• l. •••••• 2 ••••••• 3., ••••• 4 ...•.•. 5 ..••.•• 6 ••••••• 7 •• , •••• 8 ••••••. 9 •.•••. 10 ID NOOOCREEK SECTION 10 IT 3 01FEB98 0000 IO 5 0 0 JR PREC 11 9.8 2320 .0194 1 KK BA PB IN PC PC PC PC PC LS UD 30 01FEB98 .0108 .0797 .2351 .8801 .9653 .0053 .0712 .2042 .8676 .9588 .20 KK L2320 RS 1 RC 0.12 RX 975 RY 107 KK BA LS OD 1914 .0084 0 .17 KK Cl914 HC 2 KK Ll914 RS 1 RC 0 .12 RX 975 RY 107 KK BA LS UD 1672 .0015 .06 KK Cl672 HC 2 KK Ll672 RS 1 RC 0.12 RX 975 RY 107 76 FLOM .06 985 106 76 FLOll .06 985 106 76 FLOll .06 985 106 0000 • 0164 • 0887 .2833 • 8914 .9717 -1 0 .12 995 105 0 0 0.12 995 105 0 0 .12 995 105 720 8.8 .0223 .0984 .6632 .9019 .9777 406 1000 100 242 1000 100 49 1000 100 7 .4 .0284 .1089 . 7351 .9115 .9836 .0079 1 0 04 100 .004 1 004 100 .002 1 0 04 1 0 0 HEC-1 I NPUT 6 .2 .0347 .1203 • 7724 .9206 .9892 1009 105 1009 105 1009 1 0 5 4.5 • 0414 .1328 .7989 .9291 .9947 1019 106 1019 106 1019 106 .0483 .1467 .8197 .9371 1.000 ,1029 I .107 1029 107 1029 107 .0555 .1625 .8380 . 9446 .0632 .lBOB .8538 .9519 ID ••••••• 1. ...... 2 ••••••• 3 ••••••• 4 •.•.••. 5 .•••••• 6 ••••••• 7 ••••••• B ••••••• 9 •••••• 10 PAGE PAGE EXHIBIT 11 G-3 11 43 IQ( 1623 44 BA .0076 45 LS 0 76 0 46 UD . 21 47 IQ( Cl623 48 KC 2 49 KK Ll623 so RS l FL<lll 0 51 RC 0 .12 .06 0 .12 400 .005 52 RX 975 985 995 1000 1004 1009 53 RY 107 106 105 100 100 105 54 KK 1276 55 BA .0077 56 LS 0 76 0 57 UD .22 58 KK Cl276 59 RC 2 60 KK Ll276 61 RS l FL<lll 0 62 RC 0.12 .06 0.12 300 .0036 63 RX 975 985 995 1000 1004 1009 64 RY 107 106 105 100 100 105 65 KK 967 66 BA .0018 67 LS 0 76 68 UD .08 69 KK C967 70 KC 7l KK L967 72 RS l FL<lll 0 73 RC 0 .12 .06 0 .12 162 .0052 74 RX 975 985 995 1000 1004 1009 75 RY 107 106 105 100 100 105 76 KK 700 77 BA .0221 78 LS 0 76 79 UD .4 80 KK C700 81 HC 2 82 zz i········································· FLOOD HYDROGRAPH PACJ<l\GE (HEC-1) SEPTEMBER 1990 VERSION 4.0 RUN DATE 09/22 /1998 TIME 10:07:06 • ..••........•......•..................... WOODCREEK SECTION 10 *** ERROR SPECIFIED START AND END 01.TES RESULT IN TOO HllNY TIME PERIODS 3 IO IT OUTPUT CONTROL VARIABLES IPRNT 5 I PLOT 0 OS CAL o. HYDROGRAPH TIME DATA PRINT CONTROL PLOT CONTROL HYDROGRAPH PLOT SCALE NMIN 3 MlNUTES IN CCl!IPUTATION INTERVJ\L IDATE 1FEB98 STARTING DATE ITIME 0000 STARTING TIME NO 300 NUMBER OF HYDROGRAPH ORDI NATES NDDATE 1FEB98 ENDING DATE NDTIME 1457 ENDING TIME I CENT 19 CENTURY KARK CC»!PUTATION INTERVJ\L .05 HOORS TOTAL TIME BAS!: 14. 95 HOURS ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT 1019 1029 106 107 1019 1029 106 107 1019 1029 106 107 ••.•••......•..•...•.•.•.....•••....•.. U.S. ARMY CO!\PS OF ENGINEERS BYDROLOGIC ENGINEERING CENTER 609 SECOllD STREET 01.VIS, CALIFORNIA 95616 (916) 756-1104 . ..........•.............••...•.......• EXHIBIT ''G-3 '' JP MULTI-PLAN OPTION NPLAN l NUMBER OF PLANS JR l!ULTI-llATIO OPTION AATIOS OF PRECIPITATION 11.00 9.80 8.80 7.40 6.20 4.50 PEl\K FLOll AND STAGE (END-OF-PERIOD) SUHHARY FOR MULTIPLE PLAN-AATIO ECONCt!IC CCMPUTATIONS FLOllS IN CUBIC FEET PER SECOND, AREA IN SQUARE MILES TIME TO PEl\K IN HOURS RATIOS APPLIED TO PRECIPITATION OPERATION STATION AREA PLAN RATIO l RATIO 2 AATIO 3 RATIO 4 RATIO 5 RATIO 6 11.00 9 .80 8.80 7,40 6.20 4.50 HYOROGRAPH AT + 2320 .02 FLOll 99 . 86. 75. 60. 47. 29 . TIME ll.55 ll.55 ll.55 11 .55 ll.55 11.55 ROUTED TO + L2320 .02 FLOll 98. es. 74. 59. 46 . 29. TIME 11.55 11.55 11.s5 11.60 11.60 11.60 PEA!( STAGES IN FEET STAGE 103.69 103.43 103 .20 102 .8 4 102.50 101.92 TIME 11.55 11.55 ll.55 11.60 11. 60 ll.60 HYDROGRAPH AT + 1914 • 01 FLOll 44 . 38. 33. 2 7 . 21. 13. TIME 11.55 11.55 11.55 11. 55 11.55 ll.55 2 C(MBINED AT + Cl9l4 . 03 FLOll 142. 124. 108. 86 • 67. 41. TIME 11.55 11.55 11.55 11.55 11.55 11. 60 ROUTED TO + Ll914 .03 FLOll 142. 123. 107. 85. 67. 41. TIME ll.55 11.55 11.55 11 .60 11.60 ll.60 PEl\K STAGES IN FEET STAGE 105.17 104 .86 104.55 104. 07 103. 60 102.80 TIME 11.55 11.55 11.55 11.60 11.60 11.60 HYDROGRAPH AT + 1672 .00 FLOll 8. 7. 6. s. 4. 3. TIME 11.so 11.50 11.50 11.50 11.50 11 .50 2 C<MBINED AT + C1672 .03 FLOW 148 . 129. 112 . 89. 69. 4 2. TIME 11.55 11.55 11.55 11.55 11.55 ll. 60 ROUTED TO + Ll672 .OJ FLOll 148. 128. 112. 89 . 69. 42. TIME 11.55 ll.55 11.55 11.55 ll.55 11.60 PEAK STAGES IN FEET STAGE 106.01 105,69 105.40 104.91 , 104. 36 103. 40 TIME 11.55 11.55 11.55 ll. 5!1 11.55 11.60 HYOROGRAPH AT + 1623 .01 FLOll 38 . 33. 29. 23. 18. 11. TIME 11. 55 11.55 11.55 11.55 ll.55 11.55 C<MBINED AT + C1623 • 04 FLOll 186, 162 • 141. 112. 87. 53. TIME 11.55 11.55 11.55 11.55 11.55 1i.60 ROUTED TO + Ll623 • 04 FLOll 185 • 160. 140. lll. 87. 53. TIME 11 .60 11.60 11.60 11. 60 ll.60 11. 60 PEAK STAGES IN FEET STAGE 105.49 105.20 1 04. 90 104. 39 103.88 103. 02 TIME 11. 60 11. 60 ll. 60 11. 60 11.60 11. 60 HYDROGRAPH AT + 1276 • 01 FLOW 38. 33. 29 . 23. 18 . 11. TIME 11.55 11.55 11.55 ll.55 11.55 11. 60 2 Cct!BINED AT + Cl276 • 04 FLOW 223. 193. 169 . 134. 105. 64 . TIME 11. 60 11.60 11. 60 11. 60 1L60 11. 60 ROUTED TO + Ll27 6 .04 FLON 222. 192. 168. 134. 104 . 63. TIME 11.60 11.60 11. 60 11. 60 11.60 11. 65 PEAK STAGES IN FEET STAGE 106.26 105.94 105. 64 105.17 104 . 61 103.60 TIME 11. 60 11. 60 11.60 11.60 11.60 11. 65 EXHIBIT "G-3" HYDROGRAP!I AT + 967 .OD FLOll 10. 9 . 8 . 6. 5 . 3. TIME 11 .50 11 .50 11.50 11.50 11.50 11.50 2 Ca!BINED AT + C967 .05 FLOll 228. 198 , 173. 137. 107 . 65. TIME 11.60 11.60 11.60 11.60 11.60 11 .60 ROUTED TO + L967 .OS FLOM 228. 198 . 173. 137. 107 . 65 . TIME 11. 60 11 .60 11. 60 11.60 11.60 11 .65 PEAK S'tl\GES IN FEET STAGE 105.91 105.59 105.31 104. 82 104. 26 103. 32 TIME 11.60 11.60 11.60 11.60 11.60 11.65 HYDROGRAPH AT + 700 .02 FL<lll 89. 77. 67 . 53. 41. 25. TIME 11. 70 11 . 70 11. 70 11. 70 11. 70 11. 75 2 Ca!BINED AT + C700 .07 FL<lll 311 . 269 . 235. 186 . 146. 89 . TIME 11.65 11.65 11.65 11.65 11.65 11.65 ••• NORMAL END OF HEC-1 *** il~ }/~IP Drainage Report FOR WOODCREEK SECTION 10-A AND 10-B / VICINITY MAP NTS JULY, 1998 Pr epared By: McClure Engineering, Inc. 17 22 Broadmoor Drive, Suite 210 Bryan, Texas 77802 ( 409) 776 -6700 Drainage Report FOR WOODCREEK SECTION 10-A AND 10-B / VICINITY MAP NTS JULY, 1998 Prepared By: McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Texas 77802 ( 409) 776-6700 CERTIFICATION I , Joel J. Mitchell, Registered Professional Engineer No. 80649, State ofTexas, certify that this report for the drainage design for WOODCREEK., SECTIONS 10-A and 10-B, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Standards for the owners thereof DRAINAGE REPORT WOODCREEK SECTION 10-A AND 10-B INTRODUCTION TABLE OF CONTENTS WOODCREEK SECTION 10-A AND 10-B GENERAL LOCATION AND DESCRIPTION FLOOD HAZARD INFORMATION PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION DRAINAGE DESIGN CRITERIA STORM DRAIN FACILITY DESIGN DETENTION FACILITY DESIGN CONCLUSION EXHIBITS 1 1 1 2 2 2 3 5 FEMA FLOOD INSURANCE RATE MAP EXCERPT "A" DRAINAGE AREA MAP -PROPOSED CONDITIONS "B" RATIONAL FORMULAS DRAINAGE AREA CALCULATIONS "C-1" INLET COMPUTATIONS "C-2" PIPE SIZE CALCULATIONS "C-3" CULVERT ANALYSIS "C-4" PROPOSED DETENTION POND ROUTING (Detention Facility #1) "D-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #1) "D-2" STAGE/STORAGE AND STAGE/ DISCHARGE CURVES (Det. Facility #1) "D-3" PROPOSED DETENTION POND ROUTING (Detention Facility #2) "E-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #2) "E-2" STAGE/STORAGE AND STAGE/ DISCHARGE CURVES (Det. Facility #2) "E-3" PROPOSED DETENTION POND ROUTING (Detention Facility #3) "F-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #3) "F-2" STAGE/STORAGE AND STAGE/ DISCHARGE CURVES (Det. Facility #3) "F-3" CROSS SECTION MAP "G-1" WATER SURFACE PROFILE "G-2" WATER SURFACE CROSS SECTIONS AND DATA "G-3" DRAINAGE REPORT 11 WOODCREEK SE CTION 10-A AND 10-B DRAINAGE REPORT WOODCREEK SECTION 10-A AND 10-B INTRODUCTION: The purpose of this report is to study the effects of the development of Woodcreek Sections lOA and 10-B. 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 29-acre subdivision is located at the end of Woodcreek Drive. The development will extend Woodcreek Drive with the future development of Section 10-B connecting Woodcreek Driye with the existing extension of Faulkner Drive. Sections 10-A and 10-B are bounded by Foxfire Phase 2 to the northeast, Woodcreek Section Two and Three to the west and undeveloped property owned by Robert and Marguerite Carroll to the southeast. The site is mostly wooded with gently rolling terrain with an average slope of2.0% to 2 .5%. FLOOD HAZARD INFORMATION: This property is not located in a 100-Year Flood Hazard Area according to the Flood Insurance Rate Maps for Brazos County, Texas and Incorporated Areas, Map No . 48041C205 C effective July 2 , 1992 prepared by the Federal E mergency Management Agency (See Exhibit "A "). DRAINAGE REPORT 1 WOODCREEK SECTION 10-A AND 10-B PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION: The primary drainage basin for the site is the Foxfire Tributary of Carters Creek. The site is not located on the primary channel. The secondary drainage basin is a branch of the Foxfire Tributary. This branch is a well- defined channel that runs along the boundary of Woodcreek Sections One, Two and 10-A. Exhibit "B" shows the proposed development and the location of the proposed detention facilities next to the branch of the Foxfire Tributary. DRAINAGE DESIGN CRITERIA: All drainage 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. Pipe sizing is in accordance with Manning's Equation with an "n" of0.014 per the DPDS. The storage volume required for the detention pond is based on a triangular hydro graph (base = 3* Tc). The Pre-development area used for the study is the present day conditions as shown in Exhibit "B". STORM DRAIN FACILITY DESIGN: Storm water from the site will be captured in the curbs and gutters and conveyed by R.C .P . storm drain to the detention facilities . Exhibit "C-1" shows the rational calculations for the various drainage areas corresponding to the Drainage Area Map (Exhibit "B"). Exhibit "C -2" shows the inlet computations. Exhibit "C -3" shows the pipe siz.e calculations for the storm drain. Exhibit "C -4 " shows the culvert analysis for the 48" RCP culvert which crosses Woodcreek Drive. Please note that the design shown in exhibit "C-4" is the more conservative of the two methods used (FHW A in DRAINAGE REPORT 2 WOODCREEK SE CTION 10-A AND 10 -B Exhtbit "C-4", and HEC-RAS Energy shown in Exhibit "G".) Because this is the more conservative method, the headwater elevations shown on sheet 2 of the drawings reflect these numbers. DETENTION FACILITY DESIGN: Three detention facilities will be constructed as part of Section 10-A. The three facilities will provide the detention requirements for both Section 10-A and 10-B. This will be accomplished by providing over-detention in Detention Facility #3 . Exhibit "B" shows the drainage areas for the proposed development and the location of the three detention facilities . The three facilities were analyzed individually. The study point for Detention Facilities #1 and #2 is the outfall of each respective pond. The study point for Detention Facility #3 is the downstream end of drainage area 18. Exhibits "D", "E", and "F" shows the routing and hydrograph charts for the 5 , 10 , 25 , 50, and 100 year storm events. The following summary tables show the Pre-development and Post-development flows at the study points. Study Point 1 (Detention Facility #1 Outlet) Design Event Pre-Development Post-Development Water Surface Elev. Q5= 40 cfs 41 cfs 2 96.40 Q 10= 45 cfs 46 cfs 2 96 .60 Q 25 = 52 cfs 52 cfs 296.90 Q 5o= 59 cfs 58 cfs 2 97.10 Q 100= 66 cfs 65 cfs 2 97.10 Top of Berm = 298.00, Weir Elev.= 297.00, Weir Le ngth= 1 O' DRAINAGE REPORT 3 WOODC REEK SECTION 10-A AND 10-B Study Point 2 (Detention Facility #2 Outlet) Design Event Pre-Development Post-Develop ment Water Surface Elev. 54 cfs 53 cfs 290.20 61 cfs 60 cfs 290.40 70 cfs 69 cfs 290.50 79 cfs 78 cfs 290.60 89 cfs 88 cfs 290.70 Top of Berm= 292.00, Weir Elev.= 291.00, Weir Length= 10' Study Point 3 (Downstream End of Drainage Area 18) Design Event Pre-Development Post-Develop ment Water Surface Elev. Qs= 108 cfs 108 cfs 283.50 Q10= 123 cfs 122 cfs 283.70 Qis= 141 cfs 139 cfs 284.10 Qso= 161 cfs 158 cfs 284.30 Q,oo= 182 cfs 179 cfs 284.50 Top of Berm= 285.00, Weir Elev.= 284.50, Weir Length= 5' In some cases, the Post-Development flow exceeds the Pre-Development flow by one cubic foot per second. This difference is considered negligible considenng the use of empirical formulas such as Manning's Equation and the Rational Method. Because a small creek crosses some of the lots to be developed, we have developed a water surface model using the REC-RAS modeling system. Note that the final plat for this development shows public drainage easements where the small creek crosses the lots. The computed water surface of the statical 100 year storm stays within these easements. Exhibit "G-1" shows a map with the appropriate cross sections. Exhibit "G-2" shows the water surface profile for the 100, 50, 25, 10, and DRAINAGE REPORT 4 WOODCREEK SECTION 10 -A AND 10-B ----------------------' 5 year storms. The profile also demonstrates the capacity of the 48" Pipe Culvert crossing Woodcreek Drive. The various sections along the creek are shown in Exhibit "G-3" in both tabular and graphical form. CONCLUSION: For all of the design events, the Post-development flows do not exceed the present day Pre- development flows. The I 00 year event is contained in the pond and released through the pond outlet device for Detention Facility #2 . The 100 year event for Detention Facilities #1 and #3 is released through a combination of the pond outlet device and emergency overflow weir. The drainage design for this site meets the requirements as stated in the City of College Station Drainage Policy and Design Standards. DRAINAGE REPORT 5 WOODCREEK SECTION 10-A AND 10-B ZONEX Brazos County Unincorporated Areas 48ll~5 . ZONE X 0 '--.._ -LIMIT OF < .. DETAILED · STUDY Scale: 1" = 1000' .t of College Station __.../ ' y 480083 ( 0 ,, (f t '\\\: '-- RM52 x EXHIBIT A Flo od Insurance Ro e t Mop Excerpt t Texas Brazos Coun y, t d Areas and lncorpora e b . 48041C0205C Map Num ers. July 2 1992 Effective Date : . . 4... < 3: w 0 0 0::: w ...J ...J < l'.5 0.. < LI. w 0 i= I-0 (.!) 0::: ...J z < z < < w z w (.) ~ i= > w ~ z ...J 0 ...J < ~ l'.5 w ~ 0::: (.!) ~ Ci) I-> Wz 0 z 0::: w < 0 >w 0 I-:::::> < 0::: 0.. I-0 ...J NO. AC. 0.4 0.55 0.9 ft. 1 4.27 4.00 0.27 0.00 1.75 510.0 2 6.22 1.00 5.22 0.00 3.27 530.0 3A 0.42 0.00 0.42 0.00 0.23 50.0 38 1.51 0.40 1.11 0.00 0.77 350.0 4A 0.59 0.00 0.59 0.00 0.32 50.0 48 0.67 0.00 0.67 0.00 0.37 50.0 5 4.13 0.00 4.13 0.00 2.27 250.0 6.1 2.16 0.00 2.16 0.00 1.19 300.0 6.2 0.81 0.00 0.81 0.00 0.45 50.0 6.3 0.39 0.00 0.39 0.00 0.21 100.0 7 0.44 0.00 0.44 0.00 0.24 100.0 7.1 1.08 0.00 1.08 0.00 0.59 100.0 8 4.50 0.00 4.50 0.00 2.48 200.0 9 0.21 0.00 0.21 0.00 0.12 20.0 10 1.35 1.00 0.35 0.00 0.59 100.0 11 1.94 0.00 1.94 0.00 1.07 160.0 12 2.39 0.00 2.39 0.00 1.31 150.0 13 1.50 0.00 1.50 0.00 0.83 50.0 14 2.59 0.00 2.59 0.00 1.42 180.0 15 2.29 0.00 2.29 0.00 1.26 330.0 16 0.89 0.00 0.89 0.00 0.49 50.0 17A 1.19 0.00 1.19 0.00 0.65 300.0 178 0.95 0.00 0.95 0.00 0.52 70.0 18 4 02 2.01 2.01 0.00 1.91 100.0 19 4.52 2.52 2.00 0.00 2.11 300.0 Cul1 23.83 0.00 23.83 0.00 13.11 600.0 Exist1 12.42 7.56 4.86 0.00 5.70 600.0 Prop1 10.49 5.00 5.49 0.00 5.02 600.0 Exist2 17.81 9.92 7.89 0.00 8.31 600.0 Prop2 16.55 7.56 8.99 0.00 7.97 600.0 Exist3 51.03 34.31 16.72 0.00 22.92 600.0 Pond3 4.21 0.50 3.71 0.00 2.24 300.0 Prop10A 24.54 13.54 11.00 0.00 11.47 600.0 Prop108 19.75 6.01 13.74 0.00 9.96 500.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations WOODCREEK SECTION 1 OA AND B 3: 0 3: 3: ...J LI. 0 0 0 ...J ...J z LI. LI. ~ ~ 0::: :I: 0::: u u () w I-w I-0::: ...J ~ (.!) ~ ...J g I-c.i w ...J :::::> z :::::> ...J w > cc w Ci f,/) N It) 0 LI. C) ~ C) ~ > (.) :::::> N a It) a ft. ft. ft. ft/s min min In/Hr cfs In/Hr cf s 10.0 1.0 1.0 1.0 8.6 8.6 6.76 11.8 8.2 14.3 10.0 1.0 1.0 1.0 9.1 9.1 6.59 21.6 8.0 26.2 0.5 230.0 1.3 1.2 3.8 5.0 8.22 1.9 9.9 2.3 12.0 50.0 0.8 1.4 4.8 5.0 8.22 6.3 9.9 7.6 0.5 330.0 2.0 1.3 4.7 5.0 8.22 2.7 9.9 3.2 0.5 330.0 2.0 1.3 4.7 5.0 8.22 3.0 9.9 3.6 6.0 500.0 5.0 1.6 8.0 8.0 6.95 15.8 8.4 19.1 6.0 330.0 2.0 1.2 8.6 8.6 6.76 8.0 8.2 9.7 0.5 400.0 4.0 1.6 4.5 5.0 8.22 3.7 9.9 4.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 1.8 9.9 2.1 1.0 100.0 1.0 1.0 3.2 5.0 8.22 2.0 9.9 2.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 4.9 9.9 5.9 2.0 900.0 7.0 1.4 13.3 13.3 5.52 13.7 6.8 16.7 0.2 200.0 2.0 1.7 2.2 5.0 8.22 0.9 9.9 1.1 1.0 300.0 1.5 1.1 5.9 5.9 7.78 4.6 9.3 5.5 2.0 500.0 2.5 1.2 9.3 9.3 6.52 7.0 7.9 8.5 2.0 400.0 2.0 1.2 7.8 7.8 7.02 9.2 8.5 11.2 0.5 450.0 2.5 1.3 6.3 6.3 7.63 6.3 9.2 7.6 1.8 800.0 4.0 1.2 13.8 13.8 5.43 7.7 6.7 9.5 4.0 300.0 1.5 1.0 10.6 10.6 6.15 7.7 7.5 9.4 0.5 400.0 2.0 1.3 5.9 5.9 7.77 3.8 9.3 4.6 3.0 100.0 1.0 0.8 7.9 7.9 6.99 4.6 8.4 5.5 0.7 300.0 2.0 1.3 4.7 5.0 8.22 4.3 9.9 5.1 1.0 1800.0 18.0 1.8 17.5 17.5 4.78 9.1 5.9 11.2 3.0 300.0 3.0 1.0 9.6 9.6 6.44 13.6 7.8 16.5 13.0 970.0 22.0 1.7 15.0 15.0 5.19 68.0 6.4 83.5 13.0 400.0 10.0 1.4 11.7 11.7 5.87 33.5 7.2 40.8 13.0 400.0 10.0 1.4 11.7 11.7 5.87 29.5 7.2 36.0 13.0 800.0 18.0 1.7 14.1 14.1 5.36 44.5 6.6 54.6 13.0 800.0 18.0 1.7 14.1 14.1 5.36 42.7 6.6 52.4 13.0 2350.0 36.0 1.9 25.6 25.6 3.83 87.7 4.8 109.1 6.0 330.0 2.0 1.2 8.6 8.6 6.76 15.2 8.2 18.4 13.0 1400.0 26.0 1.8 18.3 18.3 4.67 53.5 5.8 66.0 5.0 200.0 1.0 0.8 14.2 14.2 5.35 53.3 6.6 65.3 0 It) 0 .... It) N .... a N a In/Hr cfs In/Hr cf s 9.2 16.0 10.5 18.3 9.0 29.3 10.2 33.5 11.0 2.5 12.5 2.9 11.0 8.5 12.5 9.6 11.0 3.6 12.5 4.1 11.0 4.0 12.5 4.6 9.4 21.4 10.7 24.4 9.2 10.9 10.5 12.4 11.0 4.9 12.5 5.6 11.0 2.4 12.5 2.7 11.0 2.7 12.5 3.0 11.0 6.5 12.5 7.4 7.6 18.9 8.7 21.6 11.0 1.3 12.5 1.4 10.4 6.2 11.9 7.0 8.9 9.5 10.1 10.8 9.5 12.5 10.8 14.2 10.3 8.5 11.7 9.6 7.5 10.7 8.6 12.2 8.4 10.6 9.6 12.1 10.4 5.1 11.9 5.8 9.5 6.2 10.8 7.1 11.0 5.7 12.5 6.5 6.7 12.7 7.6 14.6 8.8 18.5 10.0 21.1 7.2 94.2 8.2 107.8 8.1 45.9 9.2 52.5 8.1 40.5 9.2 46.3 7.4 61.6 8.5 70.4 7.4 59.1 8.5 67.6 5.4 124.1 6.2 142.5 9.2 20.6 10.5 23.5 6.5 74.7 7.5 85.6 7.4 73.6 8.5 84.3 0 0 It) It) a In/Hr cf s 11.8 20.7 11.6 37.8 14.1 3.3 14.1 10.9 14.1 4.6 14.1 5.2 12.1 27.6 11.8 14.1 14.1 6.3 14.1 3.0 14.1 3.4 14.1 8.4 9.9 24.4 14.1 1.6 13.4 7.9 11.5 12.2 12.2 16.1 13.2 10.9 9.7 13.8 10.9 13.7 13.4 6.6 12.2 8.0 14.1 7.4 8.6 16.5 11.3 23.9 9.3 122.1 10.4 59.4 10.4 52.3 9.6 79.8 9.6 76.5 7.1 162.0 11.8 26.5 8.5 97.1 9.6 95.4 0 0 0 0 .... :!:: a In/Hr cf s 13.3 23.2 13.0 42.5 15.8 3.6 15.8 12.2 15.8 5.1 15.8 5.8 13.6 30.9 13.3 15.8 15.8 7.0 15.8 3.4 15.8 3.8 15.8 9.4 11.1 27.5 15.8 1.8 15.0 8.9 12.9 13.7 13.7 18.0 14.8 12.2 10.9 15.6 12.2 15.4 15.0 7.4 13.7 8.9 15.8 8.2 9.8 18.6 12.7 26.8 10.5 137.6 11.7 66.8 11.7 58.9 10.8 89.9 10.8 86.2 8.0 183.4 13.3 29.8 9.6 109.6 10.8 107.5 7127198 9731 dra.xls Exhibit C-1 0 Oil Oil t ~ t c; . < < 0 it;~ Z z = Ci> < c: Oil • fD ~ ~ ti ·~ ~ < 0 ~ Oil = ... = ... ~ cfs 3A NA I 2.5 3B NA I 8.5 4A NA I 3.6 4B NA I 4.0 6.1 6.3 I 15.8 6.2 6.3 I 7.0 6.3 13 I 3.4 7 6.3 I 3.8 9 16 I 1.8 11 14 I 9.5 12 13 I 12.5 13 NA I 8.5 14 NA I I0.7 15 NA I I0.6 16 17A I 5.1 l7A NA I 6.2 17B NA I 5.7 t > 0 t-... = u 0 ~ :s -Oil 0 '! = ~ 0.0 I 2.5 0.0 I 8.5 o.o I 3.6 0.0 I 4.0 0.0 I 15.8 o.o I 7.0 26.3 I 29.7 21.3 I 25.l o.o I 1.8 o.o I 9.5 0.0 I 12.5 12.7 I 21.1 3.3 I 14.0 0.0 I 10.6 o.o I 5.1 0.0 I 6.2 0.0 I 5.7 EXHIBIT C-2 INLET COMPUTATIONS WOODCREEK SECTION 10A AND B .c: -"'C ~ ~ 4.l ... -00 -~ '2 ~ ... 0 .. '-"" = 4.l Cl" Q,, ~~ 281 0.1% 281 1.1% 281 0.2% 281 0.2% 281 3.7% 281 0.7% 391 27.6% 391 19.8% 391 0.1% 281 1.3% 281 2.3% 281 6.6% 28 I 2.<JO/o 281 1.7% 281 0.4% 281 0.6% 281 0.5% c) z ~ = lo-ol -~ = lo-ol -= 0 '! = ~ 3 I 11.0 4 I 7.6 6.11 15.8 6.21 7.0 6.3 I 29.7 7 I 25.l 9 I 1.8 11 I 9.5 12 I 12.5 13 I 21.1 14 I 14.0 15 I 10.6 16 I 5.1 171 11.9 DESCRIPTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade r.; ~ ... ~ ~ ~ "2 ~ l "'C ·~ ... ~ ~ ~ Curb Inlet cfs I ft I ft 2.33 I 4.71 I 5 2.33 I 3.26 I 5 0.621 25.54 I IO 0.62 I 11.38 I IO 2.33112.721 10 0.62 I 40.65 I 15 2.33 I 0.78 I 5 0.621 15.34 I 10 0.621 20.21 I IO 0.621 34.171 IO 0.621 22.61 I 10 0.621 17.15 I 10 0.621 8.26 I IO 0.621 19.30 I 15 ... .cl • ~ -~ > Q,, • 0 ~ 00 t-~ t ... '2 ~ Oil "'C • u = ~ 0 ~ u "'C ~ ... ·s g' ~ 5 ... < Grate Inlet "'C ~ "'C ·~ ... ~ OS t < ft I cfs I sq-ft I sq-ft 0 0 0 0 9.6 0.9 6.3 16 0 3.3 6.3 15 7.8 4.4 0 0 2.7 7/25/98 9731dra.xls Exhibit C-2 a d E--< ... u c z g .... ~ 00 ~ ft, ~ ~ ~ ·-0 0 ~ as CJ ~ ~ E--~ EXHIBIT C-3 WOODCREEK SECTION 10A AND B « ~ §i -~ ·-= « l1 Cl) « ~ ·-~ 8. ~ Q,, '2 ~ fll ·-c ~ ~ -Q,, 00 .... "O ... fll ·-= ~ ~ ~ = .... ~ c ..... fll '-.... "O it: = Q it: .... ~ CJ CllS c :s ~ c 1::: ~ ~ fi: -< z ~ ~ 00 ~ ~ # # Ac . min 1yr cfs cfs # cfs % ti I fps 38 2 1 .0 5.2 10 10.9 13.6 1 13.6 0 .85 21 5 .7 48 5 0 .7 5 .1 10 7 .6 9 .5 1 9 .5 0 .93 18 5 .3 6 .1 6 .2 1 .2 8 .6 100 15.8 19.7 1 19.7 0 .88 24 6 .3 6 .2 6 .3 1 .6 8 .7 100 21 .6 21 .6 1 21 .6 0 .56 27 5 .4 6 .3 9 1 .8 8 .8 100 24 .3 24.3 1 24.3 0 .41 30 5 .0 9 10 2 .0 8 .9 100 25 .7 25.7 1 25.7 0 .45 30 5 .2 11 12 1 .1 9 .3 10 9 .5 11 .8 1 11 .8 0 .64 21 4 .9 12 13 2.4 11 .1 10 19 .7 19.7 1 19.7 0 .46 27 4 .9 13 16 3 .2 11 .3 10 26.3 26.3 1 26.3 0 .83 27 6 .6 14 15 1.4 13.8 10 10.7 13.3 1 13 .3 0 .82 21 5 .5 15 16 2 .7 13.9 10 20.1 20.1 1 20.1 0.48 27 5 .0 16 178 6 .4 14.0 10 47.4 47.4 1 47.4 0 .93 33 8 .0 17A 178 0 .7 7 .9 10 6 .2 7 .7 1 7 .7 3 .55 13 8 .4 178 18 7.6 14.7 10 54 .8 54.8 1 54.8 0 .78 36 7.8 *I ncludes 25% Flow Increase for pipe sizes <27" d ia. •• See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) « i9 ~ ·-~ CJ CllS z Q,, :3 CllS u cfs I 13.6 31 9 .4 31 19.7 31 21 .6 40 24.3 42 25.7 30 11.8 530 19.6 60 26.2 240 13.3 31 20.0 50 47.4 340 7 .7 31 54.8 31 ~ e ·-E---~ ~ ... ~ min 0 .09 0 .10 0 .08 0.12 0 .14 0.10 1.79 0.20 0.61 0 .09 0 .17 0.71 0 .06 0 .07 "O = ~ @ CJ ~ min 5 .24 5 .20 8 .65 8.78 8 .92 9 .01 11 .12 11 .32 11 .93 13.86 14.03 14 .74 7.98 14.80 i9 ~ I E--~ s ' 7/25198 9731dra.xls Exh ibit C-3 Culvert#1 Culvert Description 48" RCP AT WOODCREEK DRIVE -~---Circular Pipe No. Dia. (ft.) Pipes "4.00 1 --··-·· .. --·-· -· .. . .... ---.. ·-·--Total Flow per Critical Design Flow Pipe Depth(ft.) Storm (cfs) (cfs) de 5 84.00 8"'.00 2.73 10 94.00 9-4.00 2.84 25 108.00 108.00 2.99 50 122.00 122.00 3.15 100 138.00 138.00 3.32 Elhi = Hwl + Eli ho = TW or (de + 0)12 (Whichewr is Greater) n 0.014 Normal Depth (ft.) 2.94 3.27 4.00 "4.00 4.00 EXHIBITC-4 CULVERT ANAL YSJS WOODCREEK SECTION 10-A AND 10-B Elli--... ~ TopofR~~ELho H ~~{ _________ :_ D M --------:_.:::.r-----Eli _Jf Proposed Culvert ~ ELo Invert Outlet Culwrt Elev. (ELI) Elev. (ELo) Length Slope (ft.) (ft.) (ft.) (Mt) 281.50 277.50 150.00 0.0050 Top of Roed ke 288.00 0.50 I I Outfan Channel De: Slope Ml' 0.0172 Lt Side Slope ?:1 2.00 HEADWATER CALCULATIONS INLET CONTROL HWl/D HWi ELhi 1.06 4.26 285.76 1.15 "4.59 286.09 1.28 5.11 286.61 1.43 5.71 287.21 1.62 6.48 287.98 H = 11 +ke+((29"(n"2)"LYR'1 .33)J"((v"2)12g) Elho = Elo + H +ho M 3.51 3.67 3.86 4.04 4.24 OUTLET CONTROL de 7dc + D\/2 ho H 2.73 3.36 3.51 1.63 2.8"' 3.42 3.67 2.05 2.99 3.50 3.86 2.70 3.15 3.57 "4.04 3.45 3.32 3.66 4.24 4.41 n Criteria Rt Side I Bottom Slope Width ?:1) (fl 3.00 I o.oo Control HW ELho Elev. 282.84 285.76 283.22 288.09 28"'.06 286.61 284.99 287.21 286.15 287.98 n 0.100 Type of Control Inlet Inlet Inlet Inlet Inlet Outlet Velocity (foal 8.50 8.56 8.59 9.71 10.98 Freeboard (fl) 2.2"4 1.91 1.39 0.79 0.02 7/25/98 9731-cul.xfs Exhibit C-4 DA# DA# D.A.# .. .&: ~ Q. :! I ~ "'Cl ~ :; ~ Qp 2.3 7.6 Tc 5.0 5.0 Inc 0.5 Time cfs cf11 0.0 0.0 0.0 0.0 0.5 0.2 0.8 1.0 1.0 0.5 1.5 2.0 1.5 0.7 2.3 3.0 2.0 0.9 3.0 3.9 2.5 1.1 3.8 4.9 3.0 1.4 4.6 5.9 3.5 1.6 5.3 6.9 4.0 1.8 6.1 7.9 4.5 2.0 6.8 8.9 5.0 2.3 7.6 9.9 5.5 2.2 7.2 9.4 6.0 2.0 6.8 8.9 6.5 1.9 6.5 8.4 7.0 1.8 6.1 7.9 7.5 1.7 5.7 7.4 8.0 1.6 5.3 6.9 8.5 1.5 4.9 6.4 9.0 1.4 4.6 5.9 9.5 1.3 4.2 5.4 10.0 1.1 3.8 4.9 10.5 1.0 3.4 4.4 11.0 0.9 3.0 3.9 11.5 0.8 2.7 3.5 12.0 0.7 2.3 3.0 12.5 0.6 1.9 2.5 13.0 0.5 1.5 2.0 13.5 0.3 1.1 1.5 14.0 0.2 0.8 1.0 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 o.o 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 2 8 10 0.00 indicates inital condition EXHtBJT "D-1" PROPOSED DETENTION l'OND ROUTING WOODCREEK DETENTION FACILITY '1 Pond Routing EVENT• 5 ~ c § l! 0 + ., + ... "'Cl " c ~ c + ~~ ~ "" ~ & cfs cfs cfs cfs ft 0.99 0.00 0.00 0.00 294.7 2.96 0.00 0.99 0.87 294.8 4.93 0.00 2.96 2.58 295.0 6.91 0.00 4.93 2.79 295.1 8.88 0.88 6.91 3.01 295.1 10.85 3.11 9.76 3.33 295.3 12.83 6.39 13.97 3.79 295.4 14.80 10.94 19.22 4.14 295.5 16.77 17.04 25.74 4.35 295.6 18.75 24.59 33.81 4.61 295.8 19.24 33.49 43.33 4.92 295.9 18.25 42.39 52.73 5.17 296.0 17.27 50.01 60.64 5.31 296.1 16.28 56.41 67.28 5.43 296.2 15.29 61.63 72.69 5.53 296.3 14.31 65.72 76.93 5.60 296.3 13.32 68.70 80.02 5.66 296.3 12.33 70.63 82.02 5.70 296.4 11.35 71.54 82.96 5.71 296.4 10.36 71.46 82.88 5.71 296.4 9.37 70.44 81.82 5.69 296.4 8.39 68.50 79.81 5.66 296.3 7.40 65.67 76.88 5.60 296.3 6.41 62.00 73.07 5.54 296.3 5.43 57.51 68.41 5.45 296.2 4.44 52.23 62.94 5.35 296.2 3.45 46.18 56.67 5.24 296.1 2.47 39.40 49.63 5.12 296.0 1.48 32.12 41.86 4.87 295.9 0.49 24.39 33.60 4.61 295.8 0.00 16.24 24.88 4.32 295.6 0.00 8.16 16.24 4.04 295.5 0.00 1.86 8.16 3.15 295.2 0.00 0.00 1.86 1.64 294.9 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.4 D.A.# Q llJ ..J~ ... ~ lE l 36.0 11.7 cfs cfs 0.0 0.00 1.5 2.40 3.1 5.64 4.6 7.39 6.1 9.14 7.7 10.98 9.2 12.98 10.7 14.86 12.3 16.61 13.8 18.40 15.3 20.24 16.9 22.02 18.4 23.70 19.9 25.35 21.4 26.98 23.0 28.58 24.5 30.17 26.0 31.74 27.6 33.29 29.1 34.82 30.6 36.33 32.2 37.83 33.7 39.31 35.2 40.77 35.6 41.04 34.8 40.17 34.1 39.30 33.3 38.40 32.5 37.39 31.8 36.36 31.0 35.31 30.2 34.26 29.5 32.61 28.7 30.33 27.9 27.93 27.2 27.16 26.4 26.39 25.6 25.63 24.9 24.86 24.1 24.10 23.3 23.33 22.6 22.56 21.8 21.80 21.0 21.03 20.3 20.27 19.5 19.50 18.7 18.73 18.0 17.97 17.2 17.20 16.4 16.44 15.7 15.67 36 41 D.A.# ..J~ i:: c( i= .. .... !!! ~ e~ 40.8 11.7 cfs cfs 0.0 0.00 1.7 1.74 3.5 3.48 5.2 5.22 7.0 6.95 8.7 8.69 10.4 10.43 12.2 12.17 13.9 13.91 15.6 15.65 17.4 17.39 19.1 19.13 20.9 20.86 22.6 22.60 24.3 24.34 26.1 26.08 27.8 27.82 29.6 29.56 31.3 31.30 33.0 33.03 34.8 34.77 36.5 36.51 38.3 3825 40.0 39.99 40.4 40.39 39.5 39.52 38.6 38.65 37.8 37.78 36.9 36.91 36.0 36.04 35.2 35.17 34.3 34.30 33.4 33.43 32.6 32.56 31.7 31.69 30.8 30.83 30.0 29.96 29.1 29.09 28.2 28.22 27.3 27.35 26.5 26.48 25.6 25.61 24.7 24.74 23.9 23.87 23.0 23.00 22.1 22.13 21.3 21.26 20.4 20.39 19.5 19.52 18.7 18.65 17.8 17.79 40 40 9731pnd1.xls Exhibit D-1 DA# D.A.# 0.A.# "" -a 0 w .. ... z ~ iii :E ,, ~ ::!i !!l 0 0 Qp 2.5 8.5 Tc 5.0 6.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 0.8 1.1 1.0 0.5 1.7 2.2 1.5 0.8 2.5 3.3 2.0 1.0 3.4 4.4 2.5 1.3 4.2 5.5 3.0 1.5 5.1 6.6 3.5 1.8 5.9 7.7 4.0 2.0 6.8 8.8 4.5 2.3 7.6 9.9 5.0 2.5 8.5 11.0 5.5 2.4 8.0 10.4 6.0 2.3 7.6 9.9 6.5 2.2 7.2 9.3 7.0 2.0 6.8 8.8 7.5 1.9 6.3 8.2 8.0 1.8 5.9 7.7 8.5 1.6 5.5 7.1 9.0 1.5 5.1 6.6 9.5 1.4 4.7 6.0 10.0 1.3 4.2 5.5 10.5 1.1 3.8 4.9 11.0 1.0 3.4 4.-4 11.5 0.9 3.0 3.8 12.0 0.8 2.5 3.3 12.5 0.6 2.1 2.7 13.0 0.5 1.7 2.2 13.5 0.4 1.3 1.6 14.0 0.3 0.8 1.1 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 8 11 o.oo indicates inital condition EXHfBIT "D-1" PROPOSED DETENilON POND ROUTING WOODCREEK DETENTION FACILITY #1 Pond Routing EVENT• 10 ~ c j !! + 2 t ,, .. c ~ + 11 c > I/) I/) 0 .!! .E N N ll. w cfs cfs cfs cfs ft 1.10 0.00 0.00 0.00 294.7 3.30 0.00 1.10 0.97 294.8 5.50 0.00 3.30 2.61 295.0 7.70 0.00 5.50 2.86 295.1 9.90 1.50 7.70 3.10 295.2 12.10 4.39 11.40 3.51 295.3 14.30 8.39 16.49 4.05 295.5 16.50 14.18 22.68 4.25 295.6 18.70 21.66 30.68 4.51 295.7 20.90 30.70 40.35 4.82 295.9 21.-45 41.30 51.60 5.15 296.0 20.35 52.04 62.74 5.35 296.1 19.25 61.34 72.38 5.52 296.3 18.15 69.24 80.58 5.67 296.3 17.05 75.80 87.39 5.79 296.4 15.95 81.07 92.85 5.89 296.5 14.85 85.09 97.02 5.96 296.5 13.75 87.90 99.94 6.02 296.6 12.65 89.56 101.65 6.05 296.6 11.55 90.09 102.21 6.06 296.6 10.45 89.55 101.64 6.05 296.6 9.35 87.96 100.00 6.02 296.6 8.25 85.37 97.31 5.97 296.5 7.15 81.81 93.62 5.90 296.5 6.05 77.32 88.96 5.82 296.4 4.95 71.93 83.37 5.72 296.4 3.85 65.67 76.88 5.60 296.3 2.75 58.58 69.52 5.47 296.2 1.65 50.67 61.32 5.33 296.1 0.55 41.99 52.32 5.17 296.0 0.00 32.75 42.54 4.90 295.9 0.00 23.60 32.75 4.58 295.8 0.00 15.03 23.60 4.28 295.6 0.00 7.22 15.03 3.90 295.5 0.00 1.13 7.22 3.05 295.2 0.00 0.00 1.13 1.00 294.8 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.6 D.A.# 0 w I/) Q. ..J ~ ~o 0 ;; e g: 40.5 11.7 cfs cfs 0.0 0.00 1.7 2.69 3.-4 6.06 5.2 8.02 6.9 9.99 8.6 12.12 10.3 14.39 12.1 16.31 13.8 18.29 15.5 20.33 17.2 22.38 19.0 24.30 20.7 26.20 22.4 28.07 24.1 29.91 25.8 31.73 27.6 33.53 29.3 35.30 31.0 37.06 32.7 38.79 34.5 '40.50 36.2 42.20 37.9 43.87 39.6 45.53 40.0 45.84 39.2 44.88 38.3 43.90 37.4 42.91 36.6 41.90 35.7 40.88 34.9 39.75 34.0 38.57 33.1 37.41 32.3 36.17 31.4 34.45 30.5 31.54 29.7 29.68 28.8 28.82 28.0 27.96 27.1 27.10 26.2 26.24 25.4 25.38 24.5 24.52 23.7 23.65 22.8 22.79 21.9 21.93 21.1 21.07 20.2 20.21 19.3 19.35 18.5 18.49 17.6 17.62 40 46 DA# 0 ..J~ ~ c( I--• I-!!! ;B e~ 45.9 11.7 cfs cfs 0.0 0.00 2.0 1.96 3.9 3.91 5.9 5.87 7.8 7.82 9.8 9.78 11.7 11.73 13.7 13.69 15.6 15.64 17.6 17.60 19.8 19.55 21.5 21.51 23.5 23.46 25.4 25.42 27.4 27.38 29.3 29.33 31.3 31.29 33.2 33.24 35.2 35.20 37.2 37.15 39.1 39.11 41.1 41.06 43.0 43.02 45.0 44.97 45.4 45.42 44.4 44.44 43.5 43.47 42.5 42.49 41.5 41.51 40.5 40.53 39.6 39.56 38.6 38.58 37.6 37.60 36.6 36.62 35.6 35.65 34.7 34.67 33.7 33.69 32.7 32.71 31.7 31.73 30.8 30.76 29.8 29.78 28.8 28.80 27.8 27.82 26.8 26.85 25.9 25.87 24.9 24.89 23.9 23.91 22.9 22.94 22.0 21.96 21.0 20.98 20.0 20.00 45 45 9731pnd1 .xis Exhibit 0-1 D.A.# D.A.# D.A.# "" .r: Q Q. !! w ~ ii!:: m i ~ ~ !!! 8 Qo 2.9 9.6 Tc 5.0 M Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 1.0 1.3 1.0 0.6 1.9 2.5 1.5 0.9 2.9 3.8 2.0 1.2 3.9 5.0 2.5 1.4 4.6 6.3 3.0 1.7 5.8 7.5 3.5 2.0 6.7 8.8 4.0 2.3 7.7 10.0 4.5 2.6 6.7 11.3 5.0 2.9 9.6 12.5 5.5 2.7 9.2 11.9 6.0 2.6 8.7 11.3 6.5 2.5 8.2 10.6 7.0 2.3 7.7 10.0 7.5 2.2 7.2 9.4 8.0 2.0 6.7 8.8 8.5 1.9 6.3 8.1 9.0 1.7 5.8 7.5 9.5 1.6 5.3 6.9 10.0 1.4 4.8 6.3 10.5 1.3 4.3 5.6 11.0 1.2 3.9 5.0 11.5 1.0 3.4 4.4 12.0 0.9 2.9 3.8 12.5 0.7 2.4 3.1 13.0 0.6 1.9 2.5 13.5 0.4 1.4 1.9 14.0 0.3 1.0 1.3 14.5 0.1 0.5 0.6 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 10 13 0. 00 indicates inital condition EXHIBIT "0-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACUTY t1 Pond Routine EVENT• 25 ~ c + I :!;! 8 .... ~~ c: + + :i c: ~ ~ a ~~ cfs cfs cfs cfs ft 1.25 0.00 0.00 0.00 ~.7 3.76 0.00 1.25 1.10 294.8 6.26 0.00 3.76 2.66 295.0 8.77 0.38 6.26 2.94 295.1 11.27 2.63 9.15 3.26 295.2 13.78 6.34 13.91 3.76 295.4 16.26 11.79 20.12 4.17 295.6 18.79 19.22 26.07 4.43 295.7 21.29 28.51 36.00 4.75 295.6 23.80 39.56 49.80 5.12 296.0 24.42 52.63 63.36 5.36 296.2 23.17 65.84 77.05 5.61 296.3 21.92 77.37 69.01 5.82 296.4 20.67 87.28 99.29 6.00 296.5 19.41 95.63 107.95 6.16 296.6 18.16 102.47 115.04 6.29 296.7 16.91 107.66 120.63 6.39 296.8 15.66 111.65 124.77 6.46 296.8 14.40 114.49 127.50 6.51 296.9 13.15 115.82 128.89 6.53 296.9 11.90 115.91 128.98 6.53 296.9 10.65 114.78 127.80 6.51 296.9 9.39 112.48 125.42 6.47 296.8 8.14 109.06 121.87 6.41 296.8 6.89 104.55 117.20 6.32 296.7 5.64 99.00 111.44 6.22 296.7 4.38 92.43 104.63 6.10 296.6 3.13 84.90 96.82 5.96 296.5 1.88 76.42 88.03 5.80 296.4 0.63 67.04 78.30 5.63 296.3 0.00 56.79 67.67 5.44 296.2 0.00 46.30 56.79 5.25 296.1 0.00 36.26 46.30 5.02 296.0 0.00 26.88 36.26 4.69 295.8 0.00 18.11 26.88 4.39 295.7 0.00 9.90 18.11 4.10 295.5 0.00 3.22 9.90 3.34 295.3 0.00 0.00 3.22 2.61 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 7 296.9 D.A.# Q w .J ~ .... Cl. ~o 0 il: E~ 46.3 11.7 cfs cfs 0.0 0.00 2.0 3.07 3.9 6.60 5.9 8.85 7.9 11.13 9.8 13.63 11.8 15.96 13.8 18.21 15.8 20.50 17.7 22.84 19.7 25.05 21.7 27.27 23.6 29.45 25.6 31.60 27.6 33.73 29.5 35.82 31.5 37.89 33.5 39.94 35.4 41.96 37.4 43.95 39.4 45.92 41.4 47.87 43.3 49.79 45.3 51.70 45.7 52.07 44.8 50.98 43.8 49.88 42.8 48.75 41.8 47.61 40.8 46.45 39.8 45.28 38.9 44.10 37.9 42.88 36.9 41.57 35.9 40.29 34.9 39.02 33.9 37.27 32.9 35.55 32.0 31.96 31.0 30.98 30.0 29.99 29.0 29.01 28.0 28.02 27.0 27.04 26.1 26.05 25.1 25.07 24.1 24.08 23.1 23.10 22.1 22.11 21.1 21.13 20.1 20.14 46 52 O.A.# 0 .J ii!:: x: 4( ... .. t-l!! ~ ~~ 52.5 11.7 cfs cfs 0.0 0.00 2.2 2.24 4.5 4.47 6.7 6.71 8.9 8.94 11.2 11.18 13.4 13.41 15.6 15.65 17.9 17.68 20.1 20.12 22.4 22.35 24.6 24.59 26.8 26.82 29.1 29.06 31.3 31.29 33.5 33.53 35.8 35.76 38.0 38.00 40.2 40.23 42.5 42.47 44.7 44.70 46.9 46.94 49.2 49.17 51.4 51.41 51.9 51.92 50.8 50.80 49.7 49.68 48.6 48.57 47.4 47.45 46.3 46.33 45.2 45.21 44.1 44.10 43.0 42.98 41.9 41.86 40.7 40.74 39.6 39.63 38.5 38.51 37.4 37.39 36.3 36.27 35.2 35.16 34.0 34.04 32.9 32.92 31.8 31.80 30.7 30.69 29.6 29.57 28.5 28.45 27.3 27.33 26.2 26.22 25.1 25.10 24.0 23.98 22.9 22.86 52 52 9731pnd1.x!s Exhibit D-1 D.A.# D.A.# DA# 'II: a 0 w .. .. j!; ~ m ::E 'ti 8 ~ ~ m ... ;ao 3.3 10.9 Tc 5.0 5.0 Inc 0.5 Time chi chi 0.0 0.0 0.0 0.0 0.5 0.3 1.1 1.4 1.0 0.7 2.2 2.8 1.5 1.0 3.3 4.2 2.0 1.3 4.3 5.6 2.5 1.6 5.4 7.1 3.0 2.0 6.5 8.5 3.5 2.3 7.6 9.9 4.0 2.6 6.7 11.3 4.5 2.9 9.8 12.7 5.0 3.3 10.9 14.1 5.5 3.1 10.3 13.4 6.0 2.9 9.8 12.7 6.5 2.8 9.2 12.0 7.0 2.6 8.7 11.3 7.6 2.4 8.1 10.6 8.0 2.3 7.6 9.9 8.5 2.1 7.1 9.2 9.0 2.0 6.5 8.5 9.5 1.8 6.0 7.8 10.0 1.6 5.4 7.1 10.5 1.5 4.9 6.4 11.0 1.3 4.3 5.6 11.5 1.1 3.6 4.9 12.0 1.0 3.3 4.2 12.5 0.6 2.7 3.5 13.0 0.7 2.2 2.6 13.5 0.5 1.6 2.1 14.0 0.3 1.1 1.4 14.5 0.2 0.5 0.7 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 11 14 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY t1 Pond Routlna EVENT• 50 g c -2 ~ ti + + J~ c ~ & + c I/) ~ J: N chi chi chi chi ft 1.41 0.00 0.00 0.00 294.7 4.24 0.00 1.41 1.24 294.8 7.06 0.00 4.24 2.72 295.0 9.68 1.00 7.06 3.03 295.2 12.71 3.99 10.69 3.45 295.3 15.53 8.58 16.70 4.06 295.5 18.35 15.52 24.11 4.30 295.6 21.18 24.64 33.87 4.61 295.8 24.00 35.82 45.82 5.00 296.0 26.82 49.22 59.82 5.30 296.1 27.53 64.67 76.04 5.59 296.3 26.12 80.63 92.40 5.88 296.5 24.71 94.48 106.76 6.14 296.6 23.29 106.46 119.18 6.36 296.8 21.88 116.66 129.76 6.55 296.9 20.47 125.13 138.54 6.71 297.0 19.06 130.33 145.60 7.64 297.0 17.65 132.66 149.39 8.36 297.1 16.24 133.22 150.31 8.54 297.1 14.82 132.70 149.46 6.38 297.1 13.41 131.51 147.53 8.01 297.0 12.00 129.91 144.92 7.51 297.0 10.59 126.05 141.91 6.93 297.0 9.16 125.22 136.64 6.71 297.0 7.76 121.14 134.40 6.63 296.9 6.35 115.64 126.90 6.53 296.9 4.94 109.36 122.19 6.41 296.6 3.53 101.76 114.30 6.27 296.7 2.12 93.06 105.29 6.11 296.6 0.71 63.32 95.16 5.93 296.5 0.00 72.56 64.03 5.73 296.4 0.00 61.51 72.56 5.53 296.3 0.00 50.85 61.51 5.33 296.1 0.00 40.57 50.65 5.14 296.0 0.00 30.91 40.57 4.83 295.9 0.00 21.87 30.91 4.52 295.7 0.00 13.42 21.67 4.22 295.6 0.00 5.97 13.42 3.73 295.4 0.00 0.15 5.97 2.91 295.1 0.00 0.00 0.15 0.13 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 9 297.1 DA# 0 w I/) i~ 0. ... f 0 e &: 52.3 11.7 chi cfs 0.0 0.00 2.2 3.47 4.5 7.17 6.7 9.71 6.9 12.36 11.1 15.20 13.4 17.66 15.6 20.21 17.6 22.82 20.1 25.35 22.3 27.87 24.5 30.39 26.7 32.87 29.0 35.32 31.2 37.74 33.4 40.12 35.6 43.28 37.9 46.24 40.1 48.64 42.3 50.71 44.6 52.57 46.6 54.29 49.0 55.94 51.2 57.95 51.8 56.36 50.6 57.17 49.5 55.94 48.4 54.66 47.3 53.41 46.2 52.11 45.1 50.80 44.0 49.46 42.6 46.17 41.7 46.87 40.6 45.44 39.5 44.02 36.4 42.61 37.3 41.00 36.2 39.07 35.0 35.16 33.9 33.93 32.6 32.62 31.7 31.70 30.6 30.59 29.5 29.47 26.4 26.36 27.2 27.25 26.1 26.13 25.0 25.02 23.9 23.90 22.8 22.79 52 58 D.A.# 0 ..J !!!:: I: .c ... • g~ ~ 59.4 11.7 cfs cfs 0.0 0.00 2.5 2.53 5.1 5.06 7.6 7.59 10.1 10.11 12.6 12.64 15.2 15.17 17.7 17.70 20.2 20.23 22.6 22.76 25.3 25.29 27.8 27.81 30.3 30.34 32.9 32.87 35.4 35.40 37.9 37.93 40.5 40.46 43.0 42.99 45.5 45.51 48.0 48.04 50.6 50.57 53.1 53.10 55.6 55.63 58.2 56.16 56.7 56.74 57.5 57.47 56.2 56.21 54.9 54.95 53.7 53.68 52.4 52.42 51.2 51.15 49.9 49.69 46.6 48.62 47.4 47.36 46.1 46.10 44.8 44.63 43.6 43.57 42.3 42.30 41.0 41.04 39.6 39.77 36.5 36.51 37.2 37.24 36.0 35.96 34.7 34.72 33.5 33.45 32.2 32.19 30.9 30.92 29.7 29.66 26.4 26.39 27.1 27.13 25.9 25.67 59 59 9731pnd1.xls Eid'tibit D-1 D.A.# D.A.# DA# • .c a Q. w ~ z ~ iii 8 "'C ~ :{ ~ Qo 3.6 12.2 Tc 5.0 5.0 Inc 0.5 Time eta eta 0.0 0.0 0.0 0.0 0.5 0.4 1.2 1.6 1.0 0.7 2.4 3.2 1.5 1.1 3.6 4.7 2.0 1.5 4.9 6.3 2.5 1.8 6.1 7.9 3.0 2.2 7.3 9.5 3.5 2.6 8.5 11.1 4.0 • 2.9 9.7 12.6 4.5 3.3 10.9 14.2 5.0 3.6 12.2 15.8 5.5 3.5 11.6 15.0 6.0 3.3 10.9 14.2 6.5 3.1 10.3 13.4 7.0 2.9 9.7 12.6 7.5 2.7 9.1 11.9 8.0 2.6 8.5 11.1 8.5 2.4 7.9 10.3 9.0 2.2 7.3 9.5 9.5 2.0 6.7 8.7 10.0 1.8 6.1 7.9 10.5 1.6 5.5 7.1 11.0 1.5 4.9 6.3 11.5 1.3 4.3 5.5 12.0 1.1 3.6 4.7 12.5 0.9 3.0 4.0 13.0 0.7 2.4 3.2 13.5 0.5 1.8 2.4 14.0 0.4 1.2 1.6 14.5 0.2 0.6 0.8 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 12 16 0.00 indicates inltal condition EXHIBIT "0-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #1 Pond Routina EVENT• 100 c ~ 2 c '.!:? 0 t "" + i ~ ~ + '.!:? c .f; ~ ~ iii cfs eta cfs cfs ft 1.58 0.00 0.00 0.00 294.7 4.74 0.00 1.56 1.39 294.8 7.90 0.00 4.74 2.77 295.1 11.06 1.66 7.90 3.12 295.2 14.22 5.42 12.72 3.65 295.4 17.38 11.34 19.65 4.15 295.6 20.55 19.83 28.73 4.45 295.7 23.71 30.73 40.38 4.83 295.9 26.87 44.03 54.43 5.20 296.1 30.03 59.90 70.89 5.50 296.2 30.82 78.25 89.93 5.84 296.4 29.24 96.71 109.07 6.18 296.7 27.66 112.99 125.95 6.48 296.8 26.08 127.16 140.65 6.74 297.0 24.50 135.03 153.24 9.10 297.1 22.92 138.90 159.53 10.31 297.1 21.34 140.32 161.82 10.75 297.1 19.76 140.21 161.65 10.72 297.1 18.17 139.18 159.97 10.40 297.1 16.59 137.56 157.35 9.89 297.1 15.01 135.60 154.16 9.28 297.1 13.43 133.41 150.61 8.60 297.1 11.85 131.09 146.84 7.88 297.0 10.27 128.69 142.94 7.13 297.0 8.69 125.54 138.96 6.71 297.0 7.11 120.97 134.23 6.63 296.9 5.53 115.04 128.08 6.52 296.9 3.95 107.81 120.58 6.38 296.8 2.37 99.30 111.76 6.23 296.7 0.79 89.58 101.67 6.05 296.6 0.00 78.68 90.37 5.85 296.4 0.00 67.41 78.68 5.64 296.3 0.00 56.54 67.41 5.43 296.2 0.00 46.06 56.54 5.24 296.1 0.00 36.04 46.06 5.01 296.0 0.00 26.67 36.04 4.68 295.8 0.00 17.91 26.67 4.38 295.7 0.00 9.72 17.91 4.10 295.5 0.00 3.08 9.72 3.32 295.3 0.00 0.00 3.08 2.59 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 11 297.1 DA# a w .J ~ l ~o gf 58.9 11.7 eta cfs 0.0 0.00 2.5 3.90 5.0 7.79 7.5 10.64 10.0 13.68 12.5 16.68 15.0 19.48 17.5 22.37 20.0 25.25 22.6 28.05 25.1 30.90 27.6 33.75 30.1 36.55 32.6 39.32 35.1 44.19 37.6 47.90 40.1 50.85 42.6 53.32 45.1 55.51 47.6 57.51 50.1 59.40 52.6 61.23 55.1 63.01 57.6 64.77 58.2 64.93 57.0 63.59 55.7 62.23 54.5 60.84 53.2 59.43 52.0 58.00 50.7 56.54 49.4 55.08 48.2 53.63 46.9 52.18 45.7 50.69 44.4 49.12 43.2 47.56 41.9 46.02 40.7 43.99 39.4 42.01 38.2 38.17 36.9 36.91 35.7 35.66 34.4 34.41 33.2 33.15 31.9 31.90 30.6 30.65 29.4 29.40 28.1 28.14 26.9 26.89 25.6 25.64 58 65 D.A.# 0 .J ii!': 't; <( ~ .!! ~~ ~ g~ 66.8 11.7 cfs cfs 0.0 0.00 2.8 2.84 5.7 5.69 8.5 8.53 11.4 11.38 14.2 14.22 17.1 17.07 19.9 19.91 22.8 22.75 25.6 25.60 28.4 28.44 31.3 31.29 34.1 34.13 37.0 36.911 39.8 39.82 42.7 42.67 45.5 45.51 48.4 48.35 51.2 51.20 54.0 54.04 56.9 56.89 59.7 59.73 62.6 62.58 65.4 65.42 66.1 66.07 64.7 64.65 63.2 63.23 61.8 61.81 60.4 60.36 59.0 58.96 57.5 57.54 56.1 56.12 54.7 54.70 53.3 53.27 51.9 51.85 50.4 50.43 49.0 49.01 47.6 47.58 46.2 46.16 44.7 44.74 43.3 43.32 41.9 41.90 40.5 40.47 39.1 39.05 37.6 37.63 36.2 36.21 34.8 34.79 33.4 33.36 31.9 31.94 30.5 30.52 29.1 29.10 66 66 9731pnd1 .>ds ExhibitD-1 i' .2. a WOODCREEK DETENTION FACILITY #1 5 Year Event Hydrograph Pond 40.00 35.00 30.00 25.00 20.00 15.00 10.00 5 .00 0 .00 ~~:::;:::==========::::==~~~::::::......_-~..___-+--_J 0.00 2 .00 4 .00 6 .00 8 .00 10.00 Tlme(mln.) 12.00 14 .00 16.00 18 .00 20.00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 7/25/98 Exhibit D-2 50.00 45 .00 40 .00 35.00 30 .00 i' .a 25 .00 a 20.00 15 .00 10 .00 5.00 0.00 0 .00 2 .00 4 .00 6.00 WOODCREEK DETENTION FACILITY #1 10 Year Event Hydrograph Pond 8 .00 10.00 Tlme(mln.) 12.00 14 .00 16.00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 7/25/98 Exhibit D-2 WOODCREEK DETENTION FACILITY #1 25 Year Event Hydrograph Pond 50.00 40.00 -~ ~ 30.00 G 20.00 10.00 0 .00 ~~~=============:::::==~~~~---+---~=-_J 0 .00 2 .00 4 .00 6 .00 8 .00 10.00 Time(min.) 12.00 14.00 16.00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 7/25/98 Exhibit D-2 WOODCREEK DETENTION FACILITY #1 50 Year Event Hydrograph Pond 60.00 50.00 40.00 30.00 20.00 10.00 0 .00 ~~;::============::::==~~~~---+----+--_J 0.00 2 .00 4 .00 6 .00 8 .00 10.00 Time(min.) 12.00 14 .00 16.00 18.00 20.00 --3A --3B --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 7/25/98 Exhibit D-2 WOODCREEK DETENTION FACILITY #1 100 Year Event Hydrograph Pond 60.00 50 .00 40 .00 30.00 20.00 10 .00 0 .00 ~~~===============~~~::::::........_...___-1---_J 0.00 2.00 4 .00 6 .00 8 .00 10.00 Tlme(mln.) 12 .00 14 .00 16 .00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 7/25/98 Exhibit D-2 0 .090 0 .080 0 .070 0 .060 ~ ca i 0.050 ii) 0.040 0 .030 0 .020 0 .010 WOODCREEK DETENTION FACILITY #1 Stage-Storage Curve 0 .000 +---~~~~-4---4~~~_...=-~~~-;...~~~~--4~~~~~+--~~~~+-~~~~-4-~~~~-+-~~~~~ 294 294 .5 295 295.5 296 296 .5 297 297 .5 298 298 .5 Elevation (msl) Exhibit D-3 -~ t 25.000 &:. bl i:5 WOODCREEK DETENTION FACILITY #1 Stage-Discharge Curve 0 .000+-~~~~+--.<:.-~~+-~~~~+-~~~~;--~~~~1--~~~--i~~~~--+~~~~--+~~~~~ 294.0 294 .5 295.0 295.5 296 .0 296 .5 297 .0 297 .5 298 .0 298 .5 Elevation (msl) Exhibit D-3 D.A.# D.A.# D.A.# -s: a 0.. w " .. z ~ iii == 'ti 8 ~ ~ ~ IOo 3.2 3.6 Tc 5.0 5.0 inc 0.5 Time eta eta 0.0 0.0 0.0 0.0 0.5 0.3 0.4 0.7 1.0 0.6 0.7 1.4 1.5 1.0 1.1 2.0 2.0 1.3 1.5 2.7 2.5 1.6 1.8 3 . .C 3.0 1.9 2.2 4.1 3.5 2.2 2.5 4.8 4.0 2.6 2.9 5.5 4.5 2.9 3.3 6.1 5.0 3.2 3.6 6.8 5.5 3.0 3.4 6.5 6.0 2.9 3.3 6.1 6.5 2.7 3.1 5.8 7.0 2.6 2.9 5.5 7.5 2.4 2.7 5.1 8.0 2.2 2.5 4.8 8.5 2.1 2.4 4.4 9.0 1.9 2.2 4.1 9.5 1.8 2.0 3.8 10.0 1.6 1.8 3.4 10.5 1.4 1.6 3.1 11.0 1.3 1.5 2.7 11.5 1.1 1.3 2.4 12.0 1.0 1.1 2.0 12.5 0.8 0.9 1.7 13.0 0.6 0.7 1.4 13.5 0.5 0.5 1.0 14.0 0.3 O . .C 0.7 1.C.5 0.2 0.2 0.3 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 4 7 0.00 indicates inital condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 12 Pond Routing EVENT• 5 g c .. ~ ~ 0 t: .. "" + ~ 'ti " ~ c > + c ,f i?l ~ (I) s N cfs cfs cfs cfs ft 0.68 0.00 0.00 0.00 289.5 2.05 0.00 0.68 0.57 289.6 3.'41 0.00 2.05 1.70 289.7 4.78 0.00 3.41 2.84 289.8 6.14 0.00 4.78 3.97 289.9 7.51 0.00 6.14 4.81 290.0 8.88 0.00 7.51 4.92 290.0 10.24 0.00 8.88 5.03 290.1 11.61 0.00 10.24 5.13 290.1 12.97 1.12 11.61 5.2.C 290.1 13.31 3.21 14.09 5.44 290.2 12.63 5.26 16.52 5.63 290.2 11.95 6.40 17.89 5.74 290.2 11.26 6.79 18.35 5.78 290.2 10.58 6.54 18.06 5.76 290.2 9.90 5.76 17.13 5.68 290.2 9.22 4.53 15.66 5.57 290.2 8.53 2.92 13.75 5.41 290.2 7.85 1.00 11.46 5.23 290.1 7.17 0.00 8.85 5.02 290.1 6.'49 0.00 7.17 .C.89 290.0 5.80 0.00 6.49 4.83 290.0 5.12 0.00 5.80 4.78 290.0 .C.44 0.00 5.12 4.26 289.9 3.75 0.00 4.44 3.69 289.9 3.07 0.00 3.75 3.12 289.8 2.39 0.00 3.07 2.55 289.8 1.71 0.00 2.39 1.99 289.7 1.02 0.00 1.71 1.42 289.7 0.34 0.00 1.02 0.85 289.6 0.00 0.00 0.34 0.28 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 6 290.2 D.A.# a w en a ..J ~ w ~ ~o§ j_ g g: Ii'. 52.4 14.1 cfs cf1I 0.0 0.00 1.9 2.42 3.7 5.'42 5.6 8.41 7 . .C 11.40 9.3 14.09 11.1 16.06 13.0 18.02 14.9 19.99 16.7 21.96 18.6 24.01 20.4 26.06 22.3 28.03 24.1 29.92 26.0 31.75 27.9 33.54 29.7 35.28 31.6 36.98 33.4 38.66 35.3 40.31 37.1 42.03 39.0 43.83 40.9 45.64 42.7 46.97 '44.6 48.26 46.4 49.55 48.3 50.8'4 50.1 52.13 52.0 53.'42 51.6 52.49 50.7 51.00 49.8 49.79 <48.9 48.86 '47.9 47.93 47.0 47.00 46.1 46.07 45.1 45.14 44.2 44.21 43.3 43.29 42..C 42.36 41.4 41.43 40.5 .C0.50 39.6 39.57 38.6 38.64 37.7 37.72 36.8 36.79 35.9 35.86 34.9 34.93 34.0 34.00 33.1 33.07 32.1 32.14 52 53 D.A.# 0 -'z S:I c( i:: • ... !!? ~ g~ 54.6 14.1 cfs cfs 0.0 0.00 1.9 1.94 3.9 3.87 5.8 5.81 7.7 7.74 9.7 9.68 11.6 11.62 13.6 13.55 15.5 15.49 17.4 17.42 19.4 19.36 21.3 21.30 23.2 23.23 25.2 25.17 27.1 27.11 29.0 29.04 31.0 30.98 32.9 32.91 34.8 34.85 36.8 36.79 38.7 38.72 .C0.7 40.66 42.6 42.59 44.5 44.53 46.5 46.47 48.4 48.40 50.3 50.34 52.3 52.27 54.2 54.21 53.8 53.84 52.9 52.87 51.9 51.90 50.9 50.94 50.0 49.97 49.0 49.00 48.0 48.03 47.1 47.06 46.1 46.10 45.1 45.13 44.2 44.16 43.2 43.19 42.2 42.22 41.3 41.26 40.3 40.29 39.3 39.32 38.4 38.35 37.4 37.38 36.4 36.42 35.4 35.45 34.5 34.48 33.5 33.51 54 54 9731 pnd2.xls Eldiibit E'1 D.A.# D.A.# O.A.# 'II: a. 0 w • ~ z 8' iii t 8 s ~ IOo 3.6 '4.0 Tc 5.0 5.0 Inc 0.5 Time ct. ct. 0.0 0.0 0.0 0.0 0.5 0.4 0.4 0.8 1.0 0.7 0.8 1.5 1.5 1.1 1.2 2.3 2.0 1.4 1.6 3.0 2.5 1.8 2.0 3.8 3.0 2.1 2.4 4.6 3.5 2.5 2.8 5.3 4.0 2.9 3.2 6.1 4.5 3.2 3.6 6.8 5.0 3.6 4.0 7.6 5.5 3.4 3.8 7.2 6.0 3.2 3.6 6.8 6.5 3.0 3.4 6.5 7.0 2.9 3.2 6.1 7.5 2.7 3.0 5.7 8.0 2.5 2.8 5.3 8.5 2.3 2.6 4.9 9.0 2.1 2.4 4.6 9.5 2.0 2.2 4.2 10.0 1.8 2.0 3.8 10.5 1.6 1.8 3.4 11.0 1.4 1.6 3.0 11.5 1.2 1.4 2.7 12.0 1.1 1.2 2.3 12.5 0.9 1.0 1.9 13.0 0.7 0.8 1.5 13.5 0.5 0.6 1.1 14.0 0.4 0.4 0.8 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS .. 4 8 0.00 indicates inital condition EXHIBIT "E-1" PROPOSED DETENTION PONO ROUTING WOODCREEK DETENTION FACILITY~ Pond Routing EVENT• 10 ~ g ~ :!!! i ":> + -1! ~ I "O c § i!! ~ if di ct. cfs ct. cfs ft 0.76 0.00 0.00 0.00 289.5 2.28 0.00 0.76 0.63 289.6 3.80 0.00 2.28 1.90 289.7 5.33 0.00 3.80 3.16 289.8 6.85 0.00 5.33 4.43 290.0 8.37 0.00 6.85 4.86 290.0 9.89 0.00 8.37 4.9e 290.1 11.41 0.00 9.89 5.11 290.1 12.94 0.96 11A1 5.23 290.1 14.46 3.05 13.90 5.42 290.2 14.84 6.08 17.51 5.71 290.2 14.08 8.95 20.92 5.98 290.3 13.32 10.73 23.03 6.15 290.3 12.56 11.58 24.05 6.23 290.4 11.80 11.66 24.14 6.24 290.4 11.03 11.08 23.'45 6.19 290.3 10.27 9.96 22.12 6.08 290.3 9.51 8.37 20.23 5.93 290.3 8.75 6.40 17.89 5.74 290.2 7.99 4.10 15.15 5.52 290.2 7.23 1.53 12.09 5.28 290.1 6.47 0.00 8.76 5.02 290.1 5.71 0.00 6.47 4.83 290.0 4.95 0.00 5.71 4.74 290.0 4.19 0.00 4.95 4.11 289.9 3.42 0.00 4.19 3.48 289.9 2.66 0.00 3.42 2.85 289.8 1.90 0.00 2.66 2.21 289.7 1.14 0.00 1.90 1.58 289.7 0.38 0.00 1.14 0.95 289.6 0.00 0.00 0.38 0.32 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 6 290.'4 DA# 0 w 11)0 ~&~ N e a. e g: ~ 59.1 1'4.1 ct. ct. 0.0 0.00 2.1 2.73 4.2 6.08 6.3 9A4 8.4 12.80 10.5 15.33 12.6 17.55 14.7 19.76 16.7 21.98 18.8 24.27 20.9 26.65 23.0 29.01 25.1 31.28 27.2 33.45 29.3 35.55 31.4 37.59 33.5 39.58 35.6 41.52 37.7 '43.43 39.8 45.30 41.9 47.15 «.O 48.98 46.1 50.89 48.2 52.90 50.2 54.36 52.3 55.82 54.4 57.28 56.5 58.74 58.6 60.20 58.2 59.17 57.2 57.49 56.1 56.13 55.1 55.08 54.0 54.03 53.0 52.99 51.9 51.94 50.9 50.89 49.8 49.85 48.8 48.80 47.8 47.75 46.7 46.71 45.7 45.66 «.6 44.61 43.6 43.57 42.5 42.52 41.5 41.47 40.4 40.43 39.4 39.38 36.3 38.33 37.3 37.29 36.2 36.24 59 60 O.A.# C) ..J ii!:; ~ <( t-• t-!!? ;B e~ 61.6 1'4.1 cfs cfs 0.0 0.00 2.2 2.16 4.4 4.37 6.5 6.55 8.7 8.73 10.9 10.91 13.1 13.10 15.3 15.28 17.5 17.46 19.6 19.64 21.8 21.83 24.0 24.01 26.2 26.19 28.4 28.37 30.6 30.56 32.7 32.74 34.9 34.92 37.1 37.11 39.3 39.29 41.5 41.47 43.7 43.65 45.8 '45.84 48.0 48.02 50.2 50.20 52.4 52.38 54.6 54.57 56.7 56.75 58.9 58.93 61.1 61.11 60.7 60.70 59.6 59.61 58.5 58.52 57.4 57.42 56.3 56.33 55.2 55.24 54.2 54.15 53.1 53.06 52.0 51.97 50.9 50.88 49.8 49.78 48.7 48.69 47.6 47.60 46.5 46.51 45.4 45.42 44.3 44.33 43.2 43.24 42.1 42.15 41.1 41.05 40.0 39.96 38.9 38.87 37.8 37.78 61 61 9731pnd2.xls Exhibit E-1 D.A.# D.A.# D.A.# "" .c 0 Q. w ~ z iii ... g 'g. ~ m :c • Qp 4.1 4.6 Tc 5.0 5.0 Inc 0.5 Time eta cfs 0.0 0.0 0.0 0.0 0.5 0.4 0.5 0.9 1.0 0.8 0.9 1.7 1.5 1.2 1.4 2.6 2.0 1.6 1.8 3.5 2.5 2.0 2.3 4.3 3.0 2.4 2.8 5.2 3.5 2.8 3.2 6.1 4.0 3.2 3.7 6.9 4.5 3.7 4.1 7.8 5.0 4.1 4.6 8.7 5.5 3.9 4.4 8.2 6.0 3.7 4.1 7.8 6.5 3.4 3.9 7.4 7.0 3.2 3.7 6.9 7.5 3.0 3.5 8.5 8.0 2.8 3.2 6.1 8.5 2.6 3.0 5.6 9.0 2.4 2.8 5.2 9.5 2.2 2.5 4.8 10.0 2.0 2.3 4.3 10.5 1.8 2.1 3.9 11.0 1.6 1.8 3.5 11.5 1.4 1.6 3.0 12.0 1.2 1.4 2.6 12.5 1.0 1.2 2.2 13.0 0.8 0.9 1.7 13.5 0.6 0.7 1.3 14.0 0.4 0.5 0.9 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 5 9 0.00 indicates initaf condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #2 Pond Routlna EVENT• 25 ~ c 2 l! 0 + :i:i + "D .. c "D ~ c~ t ~ c ~ ~ cfs cfs cfs cfs ft 0.87 0.00 0.00 0.00 289.5 2.80 0.00 0.87 0.72 289.6 4.33 0.00 2.60 2.18 289.7 8.07 0.00 4.33 3.60 289.9 7.80 0.00 8.07 4.80 290.0 9.53 0.00 7.80 4.94 290.0 11.27 0.00 9.53 5.08 290.1 13.00 0.84 11.27 5.22 290.1 14.73 3.00 13.84 5.42 290.2 16.47 8.27 17.73 5.73 290.2 16.90 10.48 22.74 6.13 290.3 16.03 14.38 27.38 6.50 290.4 15.17 18.94 30.42 6.74 290.5 14.30 18.43 32.10 6.84 290.5 13.43 19.02 32.73 6.85 290.5 12.57 18.76 32.45 6.65 290.5 11.70 17.70 31.32 8.81 290.5 10.83 16.08 29.40 8.66 290.5 9.97 13.99 26.92 8.46 290.4 9.10 11.51 23.96 6.23 290.4 8.23 8.69 20.61 5.96 290.3 7.37 5.59 16.92 5.67 290.2 6.50 2.26 12.96 5.35 290.1 5.63 0.00 8.76 5.02 290.1 4.77 0.00 5.63 4.66 290.0 3.90 0.00 4.77 3.96 289.9 3.03 0.00 3.90 3.24 289.8 2.17 0.00 3.03 2.52 289.8 1.30 0.00 2.17 1.80 289.7 0.43 0.00 1.30 1.08 289.6 0.00 0.00 0.43 0.36 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 000 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.5 D.A.# fiJ ti) 0 ~~w N :! 5 Q. ~ gf ~ 67.6 14.1 cfs cfs 0.0 0.00 2.4 3.12 4.8 6.95 7.2 10.79 9.6 14.38 12.0 16.92 14.4 19.45 16.8 21.98 19.2 24.58 21.6 27.29 24.0 30.08 26.3 32.85 28.7 35.48 31.1 37.98 33.5 40.39 35.9 42.78 38.3 45.14 40.7 47.38 43.1 49.58 45.5 51.74 47.9 53.87 50.3 55.97 52.7 58.05 55.1 60.11 57.5 62.17 59.9 63.85 62.3 65.52 64.7 67.20 67.1 68.87 66.6 67.69 65.4 65.78 64.2 64.22 63.0 63.02 61.8 61.82 60.6 60.63 59.4 59.43 58.2 58.23 57.0 57.03 55.8 55.84 54.8 54.64 53.4 53.44 52.2 52.24 51.0 51.04 49.8 49.85 48.6 48.65 47.5 47.45 46.3 46.25 45.1 45.06 43.9 43.86 42.7 42.66 41.5 41.46 67 69 D.A.# ~! ts • I-!1 Jl i:n~ 70.4 14.1 cfs cfs 0.0 0.00 2.5 2.50 5.0 4.99 7.5 7.49 10.0 9.99 12.5 12.49 15.0 14.98 17.5 17.48 20.0 19.98 22.5 22.48 25.0 24.97 27.5 27.47 30.0 29.97 32.5 32.47 35.0 34.96 37.5 37.46 40.0 39.96 42.5 42.45 45.0 44.95 47.4 47.45 49.9 49.95 52.4 52.44 54.9 54.94 57.4 57.44 59.9 59.94 62.4 62.43 64.9 64.93 67.4 67.43 69.9 69.93 69.4 69.45 68.2 68.20 67.0 68.95 65.7 65.70 64.5 64.45 63.2 63.21 62.0 61.96 60.7 60.71 59.5 59.46 58.2 58.21 57.0 56.96 55.7 55.71 54.5 54.46 53.2 53.22 52.0 51.97 50.7 50.72 49.5 49.47 48.2 48.22 47.0 46.97 45.7 '45.72 44.5 44.48 43.2 43.23 70 70 9731 pnd2.xla Exhibit E-1 O.A.# D.A.# D.A.# • t 0 ~ .... ~ m 8 ~ s ~ Qp 4.6 5.2 Te 5.0 !5.0 Inc 0.!5 Time efs efs 0.0 0.0 0.0 0.0 0.5 0.5 0.5 1.0 1.0 0.9 1.0 2.0 1.5 1.4 1.6 2.9 2.0 1.8 2.1 3.9 2.5 2.3 2.6 4.9 3.0 2.7 3.1 5.9 3.5 3.2 3.6 6.8 4.0 3.7 4.2 7.8 4.5 4.1 4.7 8.8 5.0 4.6 5.2 9.8 5.5 4.3 4.9 9.3 6.0 4.1 4.7 8.8 6.5 3.9 4.4 8.3 7.0 3.7 4.2 7.8 7.5 3.4 3.9 7.3 8.0 3.2 3.6 6.8 8.5 3.0 3.4 6.4 9.0 2.7 3.1 5.9 9.5 2.5 2.9 5.4 10.0 2.3 2.6 4.9 10.5 2.1 2.3 4.4 11.0 1.8 2.1 3.9 11.5 1.6 1.8 3.4 12.0 1.4 1.6 2.9 12.5 1.1 1.3 2.4 13.0 0.9 1.0 2.0 13.5 0.7 0.8 1.5 14.0 0.5 0.5 1.0 14.5 0.2 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 5 5 10 0.00 indicates inital condition EXHIBIT "E·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #2 Pond Routina EVENT• 50 c ~ c 2 :!;! ~ + ... c + + ~! + ,, c ~ tll d c .... eta efs efs efs ft 0.98 0.00 0.00 0.00 289.5 2.93 0.00 0.98 0.81 289.6 4.88 0.00 2.93 2.44 289.8 6.84 0.00 4.88 4.06 289.9 8.79 0.00 6.84 4.86 290.0 10.75 0.00 8.79 5.02 290.1 12.70 0.40 10.75 5.17 290.1 14.65 2.38 13.10 5.36 290.1 16.61 5.68 17.03 5.67 290.2 18.56 10.10 22.29 6.09 290.3 19.05 15.46 28.67 6.60 290.4 18.07 20.72 34.51 6.90 290.5 17.10 24.80 38.80 7.00 290.6 16.12 27.76 41.90 7.07 290.6 15.14 29.64 43.86 7.12 290.6 14.17 30.51 44.78 7.14 290.6 13.19 30.40 44.67 7.14 290.6 12.21 29.37 43.59 7.11 290.6 11.23 27.45 41.58 7.06 290.6 10.26 24.70 38.69 6.99 290.6 9.28 21.14 34.96 6.91 290.5 8.30 16.94 30.42 6.74 290.5 7.33 12.59 25.25 6.33 290.4 8.35 8.11 19.92 5.90 290.3 5.37 3.52 14.46 5.47 290.2 4.40 0.00 8.89 5.03 290.1 3.42 0.00 4.40 3.65 289.9 2.44 0.00 3.42 2.84 289.8 1.47 0.00 2.44 2.03 289.7 0.49 0.00 1.47 1.22 289.6 0.00 0.00 0.49 0.41 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.6 DA# 0 w t/10 l ~g5 ~f ~ 76.5 14.1 efs eta 0.0 0.00 2.7 3.52 5.4 7.86 8.1 12.20 10.9 15.71 13.6 18.58 16.3 21.45 19.0 24.35 21.7 27.38 24.4 30.51 27.1 33.73 29.8 36.74 32.6 39.55 35.3 42.34 38.0 45.10 40.7 47.83 43.4 50.54 46.1 53.23 48.8 55.89 51.5 58.54 54.3 61.16 57.0 63.71 59.7 66.01 62.4 68.30 65.1 70.58 67.8 72.84 70.5 74.18 73.2 76.09 76.0 77.99 75.4 76.66 74.1 74.49 72.7 72.73 71.4 71.37 70.0 70.01 68.7 68.66 67.3 67.30 65.9 65.94 64.6 64.59 63.2 63.23 61.9 61.87 60.5 60.52 59.2 59.16 57.8 57.81 56.4 56.45 55.1 55.09 53.7 53.74 52.4 52.38 51.0 51.02 49.7 49.67 48.3 48.31 47.0 46.95 76 78 D.A.# _J ~ ti ~ !! • ~ ~~ 79.8 14.1 cfs cfs 0.0 0.00 2.8 2.83 5.7 6.66 8.5 8.48 11.3 11.31 14.1 14.14 17.0 16.97 19.8 19.80 22.6 22.63 25.5 25.45 28.3 28.28 31.1 31.11 33.9 33.94 36.8 36.77 39.6 39.59 42.4 42.42 45.3 45.25 48.1 48.08 50.9 50.91 53.7 53.73 56.6 56.56 59.4 59.39 62.2 62.22 65.0 85.05 67.9 67.88 70.7 70.70 73.5 73.53 76.4 76.36 79.2 79.19 78.6 78.65 77.2 77.23 75.8 75.82 74.4 74.41 73.0 72.99 71.6 71.58 70.2 70.16 68.7 68.75 67.3 67.34 65.9 65.92 64.5 64.51 63.1 63.09 61.7 61.68 60.3 60.26 58.9 58.85 57.4 57.44 56.0 56.02 54.6 54.61 53.2 53.19 51.8 51.78 50.4 50.37 49.0 48.95 79 79 9731 pnd2.lds Exhibit E-1 O.A.# O.A.# D.A.# 'It .r:. 0 c. w ~ z ~ iii 8 "C >-~ ~ :x: IOn 5.1 5.8 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.5 0.6 1.1 1.0 1.0 1.2 2.2 1.5 1.5 1.7 3.3 2.0 2.0 2.3 4.4 2.5 2.6 2.9 5.5 3.0 3.1 3.5 6.6 3.5 3.6 4.1 7.7 4.0 4.1 4.7 8.7 4.5 4.6 5.2 9.8 5.0 5.1 5.8 10.9 5.5 4.9 5.5 10.4 6.0 4.6 5.2 9.8 6.5 4.4 4.9 9.3 7.0 4.1 4.7 8.7 7.5 3.8 4.4 8.2 8.0 3.6 4.1 7.7 8.5 3.3 3.8 7.1 9.0 3.1 3.5 6.6 9.5 2.8 3.2 6.0 10.0 2.6 2.9 5.5 10.5 2.3 2.6 4.9 11.0 2.0 2.3 4.4 11.5 1.8 2.0 3.8 12.0 1.5 1.7 3.3 12.5 1.3 1.5 2.7 13.0 1.0 1.2 2.2 13.5 0.8 0.9 1.6 14.0 0.5 0.6 1.1 14.5 0.3 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 5 6 11 0.00 indicates inilal condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #2 Pond Routing EVENT• 100 ~ c: c: 2 ~ 0 + + :Q c: ~ ~ -g ~ + c: :c :c o.!! ~ Q. w cfs cfs cfs cfs ft 1.09 0.00 0.00 0.00 269.5 3.26 0.00 1.09 0.91 269.6 5.47 0.00 3.26 2.73 289.8 7.66 0.00 5.47 4.54 290.0 9.84 0.00 7.66 4.93 290.0 12.03 0.00 9.84 5.10 290.1 14.22 1.48 12.03 5.28 290.1 16.40 4.56 15.69 5.57 290.2 18.59 8.99 20.96 5.99 290.3 20.78 14.55 27.58 6.51 290.4 21.32 21.50 35.33 6.92 290.5 20.23 28.64 42.82 7.09 290.6 19.14 34.40 48.87 7.24 290.6 18.04 38.85 53.54 7.35 290.7 16.95 42.04 56.89 7.42 290.7 15.86 44.04 58.99 7.47 290.7 14.76 44.91 59.90 7.50 290.7 13.67 44.69 59.67 7.49 290.7 12.58 43.44 58.36 7.46 290.7 11.48 41.21 56.02 7.40 290.7 10.39 38.04 52.69 7.33 290.7 9.30 33.98 48.43 7.22 290.6 8.20 29.07 43.28 7.10 290.6 7.11 23.35 37.27 6.96 290.5 6.01 16.97 30.46 6.74 290.5 4.92 10.69 22.99 6.15 290.3 3.83 4.49 15.61 5.56 290.2 2.73 0.00 8.32 4.98 290.0 1.64 0.00 2.73 2.27 289.7 0.55 0.00 1.64 1.36 289.7 0.00 0.00 0.55 0.45 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.7 D.A.# 0 ~o ..J ~~ "' Q. < 0 :::> 0 I-0 Q: g If er 86.2 14.1 cfs cfs 0.0 0.00 3.1 3.96 6.1 6.84 9.2 13.71 12.2 17.15 15.3 20.38 18.3 23.61 21.4 26.96 24.4 30.43 27.5 34.01 30.6 37.47 33.6 40.70 36.7 43.90 39.7 47.07 42.6 50.20 45.8 53.31 48.9 56.38 51.9 59.43 55.0 62.46 58.1 65.46 61.1 68.44 64.2 71.39 67.2 74.32 70.3 77.24 73.3 80.08 76.4 82.54 79.4 85.00 82.5 87.48 85.6 87.83 85.0 86.33 83.4 83.90 81.9 81.92 80.4 80.39 78.9 78.86 77.3 77.33 75.8 75.80 74.3 74.28 72.7 72.75 71.2 71.22 69.7 69.69 68.2 68.17 66.6 66.64 65.1 65.11 63.6 63.58 62.1 62.05 60.5 60.53 59.0 59.00 57.5 57.47 55.9 55.94 54.4 54.42 52.9 52.69 86 88 O.A.# ..J ~ S:! <i:: .. I-!!l ~ e~ 89.9 14.1 cfs cfs 0.0 0.00 3.2 3.19 6.4 6.37 9.6 9.56 12.7 12.74 15.9 15.93 19.1 19.11 22.3 22.30 25.5 25.48 28.7 28.67 31.9 31.86 35.0 35.04 38.2 38.23 41.4 41.41 44.6 44.60 47.8 47.78 51.0 50.97 54.2 54.15 57.3 57.34 60.5 60.52 63.7 63.71 66.9 66.90 70.1 70.08 73.3 73.27 76.5 76.45 79.6 79.64 82.8 82.82 86.0 86.01 89.2 89.19 88.6 88.59 87.0 86.99 85.4 85.40 83.8 83.81 82.2 82.22 80.6 80.62 79.0 79.03 77.4 77.44 75.8 75.84 74.3 74.25 72.7 72.66 71.1 71.07 69.5 69.47 67.9 67.88 66.3 66.29 64.7 64.69 63.1 63.10 61.5 61.51 59.9 59.92 58.3 58.32 56.7 56.73 55.1 55.14 89 89 9731 pnd2.xts Emibit E-1 WOODCREEK DETENTION FACILITY #2 5 Year Event Hydrograph Pond 60.00 ~-------------------------------- 50.00 40.00 i' a 30.00 a 20.00 10.00 0 .00 ~~2::::===========~~~=-----+----1--_J 0 .00 2.00 4.00 6 .00 8 .00 10.00 Time(min.) 12 .00 14 .00 16.00 18.00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/25/98 Exhibit E-2 i a WOODCREEK DETENTION FACILITY #2 10 Year Event Hydrograph Pond 70.00 -r-----------------------------------. 60.00 -........ L. ' ' ...... ...... ...... ...... ' 50 .00 40.00 30 .00 20.00 10.00 0.00 ~~2:::::::=========~~~~-...__---11---_J 0 .00 2.00 4 .00 6 .00 8.00 10.00 Time(min.) 12.00 14.00 16 .00 18.00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/25/98 Exhibit E-2 WOODCREEK DETENTION FACILITY #2 25 Year Event Hydrograph Pond 70.00 60.00 50.00 !' ~ 40.00 a 30.00 20.00 10.00 0.00 ~~2::::::::::=====~~~~;;;;;:.__-+---+--_J 0.00 2 .00 4 .00 6.00 8.00 10.00 Time(min.) 12 .00 14 .00 16.00 18.00 20.00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 7/25/98 Exhibit E-2 !" ~ a WOODCREEK DETENTION FACILITY #2 50 Year Event Hydrograph Pond 80.00 70 .00 60.00 50.00 40.00 30.00 20 .00 10.00 0 .00 ~~::::============::::~~~iiiiii;;;;:,...-+---+--J 0 .00 2.00 4.00 6.00 8.00 10.00 Tlme(mln.) 12.00 14 .00 16.00 18.00 20.00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 7/25/98 Exhibit E-2 100 .00 90.00 80.00 70 .00 60 .00 a ~ 50.00 a 40.00 30.00 20.00 10.00 0.00 0.00 2.00 4.00 6 .00 WOODCREEK DETENTION FACILITY #2 100 Year Event Hydrograph Pond 8 .00 10.00 Time(min.) 12.00 -........ 14 .00 ........ ...... ...... ...... 16.00 ....... ...... ...... 18 .00 20 .00 --4A --46 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/25/98 Exhibit E-2 0 .160 0 .140 0 .120 ~ 0 .100 ~ t 0 u; 0 .080 0 .060 0 .040 0 .020 WOODCREEK DETENTION FACILITY #2 Stage-Storage Curve 0 .000 +-------------.....,==-----+------+-------11------+-------+------+------l 289 289 .5 290 290.5 291 291 .5 292 292.5 293 293 .5 Elevation (msl) Exh ibit E-3 ~ .!:. cu e' ~ lil i5 100.000 75 .000 50.000 25.000 WOODCREEK DETENTION FACILITY #2 Stage-Discharge Curve 0 .000+-~~~~ ...... =-~~~-+-~~~~--+-~~~~--+-~~~~-+-~~~~--+~~~~--+~~~~--+~~~~--t 289 .0 289.5 290 .0 290.5 291 .0 291 .5 292.0 292 .5 293 .0 293 .5 Elevation (msl) Exhibit E-3 D.A.# D.A.# 'II: ~ 0 Q. w .. .. z 8' iii .., ~ i ~ ~ 8 Qp 18.4 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.1 2.1 10.0 4.3 4.3 11.0 6.4 6.4 12.0 8.6 6.6 13.0 10.7 10.7 14.0 12.9 12.9 15.0 15.0 15.0 16.0 17.1 17.1 17.0 17.9 17.9 18.0 16.8 16.8 19.0 15.8 15.8 20.0 14.7 14.7 21.0 13.6 13.6 22.0 12.5 12.5 23.0 11.5 11.5 24.0 10.4 10.4 25.0 9.3 9.3 26.0 8.3 8.3 27.0 7.2 7.2 26.0 6.1 6.1 29.0 5.0 5.0 30.0 4.0 4.0 31.0 2.9 2.9 32.0 1.6 1.8 33.0 0.8 0.6 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 36.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 18 18 0. 00 indicates inital condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY "3 Pond Routing EVENT"' 5 D.A.# c ~ ~ c :!2 c( t ~ 0 ..... ~ ~ ..... + ~ Q. + c £ ~ l!.l if m .s 66.0 18.3 cfs cfs cfs eta ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.14 0.00 0.00 0.00 280.7 0.0 6.43 0.00 2.14 1.56 281.0 3.6 10.71 2.90 6.43 1.76 281.1 7.2 14.99 9.60 13.61 2.01 281.2 10.8 19.28 19.64 24.59 2.38 281.4 14.5 23.56 33.38 39.11 2.87 281.7 18.1 27.84 50.01 56.94 3.47 282.0 21.7 32.13 70.58 77.85 3.63 282.1 25.3 35.03 95.04 102.71 3.83 282.3 28.9 34.73 121.97 130.08 4.05 282.5 32.5 32.59 148.17 156.70 4.26 282.7 36.1 30.44 171.64 180.76 4.46 282.9 39.8 28.30 193.03 202.29 4.63 283.0 43.4 26.16 211.89 221.33 4.72 283.1 47.0 24.02 228.44 238.05 4.80 283.2 50.6 21.88 242.71 252.46 4.87 283.3 54.2 19.73 254.72 264.58 4.93 283.3 57.8 17.59 264.48 274.45 4.98 283.4 61.5 15.45 272.04 282.08 5.02 283.4 65.1 13.31 277.39 287.49 5.05 283.5 64.7 11.17 280.58 290.70 5.06 283.5 62.9 9.03 281.61 291.75 5.07 283.5 61.1 6.88 280.51 290.64 5.06 283.5 59.3 4.74 277.30 267.39 5.05 263.5 57.4 2.60 272.00 262.04 5.02 263.4 55.6 0.76 264.64 274.60 4.98 283.4 53.8 0.00 255.52 265.40 4.94 263.3 52.0 0.00 245.74 255.52 4.89 283.3 50.2 0.00 236.06 245.74 4.84 283.2 48.4 0.00 226.47 236.06 4.79 283.2 46.6 0.00 216.98 226.47 4.75 263.1 44.6 0.00 207.58 216.96 4.70 283.1 43.0 0.00 196.27 207.58 4.65 283.0 41.2 0.00 169.07 198.27 4.60 283.0 39.4 0.00 160.03 189.07 4.52 282.9 37.6 0.00 171.12 180.03 4.45 282.6 35.8 0.00 162.36 171.12 4.38 282.8 34.0 0.00 153.74 162.36 4.31 282.7 32.1 0.00 145.26 153.74 4.24 282.7 30.3 0.00 136.91 145.26 4.17 282.6 26.5 0.00 128.70 136.91 4.11 262.6 26.7 0.00 120.62 126.70 4.04 282.5 24.9 0.00 112.67 120.62 3.98 282.4 23.1 5 283.5 65 O.A.# 0 w ~1~ GI 0 ..... Q. 0 e ~ Q: 65.3 14.2 cfs cfs 0.0 0.00 4.6 4.61 9.2 9.22 13.8 13.83 18.4 18.43 23.0 23.04 27.7 27.65 32.3 32.26 36.9 36.87 41.5 46.65 46.1 55.08 50.7 63.54 55.3 72.14 59.9 60.85 64.5 69.68 63.4 92.35 61.1 93.86 58.8 95.39 56.5 96.92 54.2 98.42 51.9 99.90 49.6 101.30 47.3 102.70 45.0 104.08 42.7 105.45 40.4 106.81 38.1 108.16 35.8 105.49 33.5 101.39 31.2 97.26 28.8 93.17 26.5 69.04 24.2 84.90 21.9 80.75 19.6 76.60 17.3 72.44 15.0 66.28 12.7 64.12 10.4 59.96 8.1 55.80 5.8 51.64 3.5 47.47 1.2 43.29 0.0 40.21 0.0 38.33 0.0 36.45 0.0 34.58 0.0 32.70 0.0 30.63 0.0 26.95 0.0 27.08 65 108 D.A.# ~~ t3 • ~ !!l ·;c 8~ w 109.1 25.6 cfg cfs 0.0 0.00 4.3 4.26 8.5 8.53 12.8 12.79 17.1 17.05 21.3 21.31 25.6 25.58 29.8 29.84 34.1 34.10 38.4 38.36 42.6 42.63 46.9 46.89 51.2 51.15 55.4 55.42 59.7 59.68 63.9 63.94 68.2 68.20 72.5 72.47 76.7 76.73 81.0 80.99 85.3 85.25 81}.5 89.52 93.6 93.78 98.0 98.04 102.3 102.31 106.6 106.57 108.2 108.25 106.1 106.12 104.0 103.98 101.9 101.85 99.7 99.72 97.6 97.59 95.5 95.46 93.3 93.33 91.2 91.20 69.1 89.06 86.9 86.93 84.8 84.80 82.7 62.67 80.5 80.54 78.4 78.41 76.3 76.28 74.1 74.14 72.0 72.01 69.9 69.88 67.8 67.75 65.6 65.62 63.5 63.49 61.4 61.36 59.2 59.23 57.1 57.09 108 108 9731pnd3.x!s "Exhibit F-1 D.A.# D.A.# 'It a 0 w !! z ~ iii I 8 ~ Qo 20.6 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.4 2.4 10.0 4.8 4.8 11.0 7.2 7.2 12.0 9.8 9.6 13.0 12.0 12.0 14.0 14.4 14.4 15.0 16.8 16.8 16.0 19.2 19.2 17.0 20.1 20.1 18.0 18.9 18.9 19.0 17.7 17.7 20.0 16.5 16.5 21.0 15.3 15.3 22.0 14.1 14.1 23.0 12.9 12.9 24.0 11.7 11.7 25.0 10.5 10.5 26.0 9.3 9.3 27.0 8.1 8.1 28.0 6.9 6.9 29.0 5.7 5.7 30.0 4.5 4.5 31.0 3.3 3.3 32.0 2.1 2.1 33.0 0.9 0.9 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 20 20 0. 00 indicates ini1af condition EXHIBIT "f·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 13 Pond Routlna EVENT• 10 DA# ~ c ~ ~ 0 "' .... <= 0 t + ~ ~~ Q. I id c 0 l!.l Ii. 74.7 18.3 cf9 eta cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.40 0.00 0.00 0.00 280.7 0.0 7.20 0.00 2.40 1.63 281.0 4.1 12.00 3.62 7.20 1.79 281.1 8.2 16.80 11.47 15.62 2.07 281.2 12.3 21.60 23.27 28.27 2.50 281.5 16.4 26.40 38.75 44.87 3.06 281.8 20.5 31.20 58.08 65.14 3.53 282.1 24.5 36.00 81.83 89.28 3.73 282.2 28.6 39.25 109.91 117.82 3.95 282.4 32.7 38.91 140.76 149.17 4.20 282.6 36.6 36.51 170.77 179.67 4.45 282.8 40.9 34.11 197.97 207.28 4.65 283.0 45.0 31.71 222.54 232.08 4.77 283.2 49.1 29.31 244.48 254.25 4.88 283.3 53.2 26.91 263.83 273.79 4.98 283.4 57.3 24.51 280.62 290.74 5.06 283.5 61.4 22.11 294.86 305.13 5.13 283.5 65.4 19.71 306.59 316.97 5.19 283.6 69.5 17.31 315.82 326.30 5.24 283.7 73.6 14.91 322.59 333.14 5.27 283.7 73.2 12.51 326.92 337.51 5.29 283.7 71.1 10.11 328.83 339.43 5.30 283.7 69.1 7.71 328.34 338.94 5.30 283.7 67.1 5.31 325.48 336.06 5.29 283.7 65.0 2.91 320.28 330.80 5.26 283.7 63.0 0.86 312.75 323.19 5.22 283.6 60.9 0.00 303.25 313.60 5.17 283.6 58.9 0.00 293.01 303.25 5.12 283.5 56.8 0.00 282.86 293.01 5.07 283.5 54.8 0.00 272.81 282.86 5.02 283.4 52.7 0.00 262.86 272.81 4.97 283.4 50.7 0.00 253.01 262.86 4.93 283.3 48.6 0.00 243.25 253.01 4.88 283.3 46.6 0.00 233.60 243.25 4.83 283.2 44.6 0.00 224.03 233.60 4.78 283.2 42.5 0.00 214.56 224.03 4.74 283.1 40.5 0.00 205.18 214.56 4.69 283.1 38.4 0.00 195.90 205.18 4.64 283.0 36.4 0.00 186.74 195.90 4.58 283.0 34.3 0.00 177.73 186.74 4.51 282.9 32.3 0.00 168.87 177.73 4.43 282.8 30.2 0.00 160.14 168.87 4.36 282.8 28.2 0.00 151.56 160.14 4.29 282.7 26.1 5 283.7 74 D.A.# 0 w ~g~ m 0 .... a.. 0 g g: Ii: Ii. 73.8 14.2 cfs cfs 0.0 0.00 5.2 5.20 10.4 10.39 15.6 15.59 20.8 20.78 26.0 25.98 31.2 31.18 36.4 36.37 41.6 41.57 46.8 52.48 52.0 61.93 57.2 71.50 62.4 81.21 67.5 91.06 72.7 100.82 71.5 103.86 68.9 105.58 66.3 107.32 63.7 109.06 61.1 110.75 58.5 112.37 55.9 113.97 53.3 115.56 50.7 117.13 48.1 118.70 45.5 120.25 42.9 121.79 40.3 118.78 37.7 114.16 35.1 109.52 32.5 104.88 29.9 100.22 27.3 95.55 24.7 90.87 22.1 86.18 19.5 81.49 16.9 76.79 14.3 72.10 11.7 67.41 9.1 62.71 6.5 58.02 3.9 53.33 1.4 48.64 0.0 45.20 0.0 43.11 0.0 41.02 0.0 38.91 0.0 36.79 0.0 34.67 0.0 32.55 0.0 30.44 73 122 D.A.# _.i t? "' I= .. ... !!2 ~ e~ 124.1 25.6 cfs cfs 0.0 0.00 4.8 4.85 9.7 9.70 14.5 14.55 19.4 19.40 24.2 24.25 29.1 29.10 33.9 33.95 38.8 38.79 43.6 43.64 48.5 48.49 53.3 53.34 58.2 58.19 63.0 63.04 67.9 67.89 72.7 72.74 77.6 77.59 82.4 82.44 87.3 87.29 92.1 92.14 97.0 96.99 101.8 101.84 106.7 106.69 111.5 111.54 116.4 116.38 121.2 121.23 123.1 123.14 120.7 120.72 118.3 118.29 115.9 115.87 113.4 113.44 111.0 111.02 108.6 108.60 106.2 106.17 103.7 103.75 101.3 101.32 98.9 98.90 96.5 96.47 94.0 94.05 91.6 91.62 89.2 89.20 86.8 86.77 84.3 84.35 81.9 81.92 79.5 79.50 77.1 77.07 74.6 74.65 72.2 72.22 69.8 69.80 67.4 67.38 65.0 64.95 123 123 9731pod3.x!s Exhibit F-1 O.A.# D.A.# .. -a Q l! w ~ e .., ~ "D ~ c: ~ Oo 23.5 Tc 8.6 Inc 1.0 Time cf• cfa 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.7 2.7 10.0 5.5 5.5 11.0 8.2 8.2 12.0 11.0 11.0 13.0 13.7 13.7 14.0 16.4 16.4 15.0 19.2 19.2 16.0 21.9 21.9 17.0 22.9 22.9 18.0 21.5 21.5 19.0 20.1 20.1 20.0 18.8 18.8 21.0 17.4 17.4 22.0 16.0 16.0 23.0 14.7 14.7 24.0 13.3 13.3 25.0 11.9 11.9 26.0 10.6 10.6 27.0 92 9.2 28.0 7.8 7.8 29.0 6.5 6.5 30.0 5.1 5.1 31.0 3.7 3.7 32.0 2.3 2.3 33.0 1.0 1.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 23 23 0. 00 indicate& in ital condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 13 Pond Routlna EVENT• 25 D.A. # i c g .g c( ... 0 + + ! i ~~ g_ c 0 ~ ~ Ir 85.6 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.74 0.00 0.00 0.00 280.7 0.0 8.22 0.00 2.74 1.64 281.0 4.7 13.69 4.57 8.22 1.82 281.1 9.4 19.17 13.94 18.26 2.16 281.3 14.1 24.65 27.78 33.11 2.66 281.6 18.7 30.13 45.80 52.43 3.32 281.9 23.4 35.60 68.69 75.93 3.62 282.1 28.1 41.08 96.60 104.29 3.85 282.3 32.8 44.80 129.46 137.68 4.11 282.6 37.5 44.41 165.45 174.26 4.41 282.8 42.2 41.67 200.52 209.85 4.67 283.0 46.9 38.93 232.54 242.19 4.82 283.2 51.6 36.19 261.53 271.47 4.97 283-4 56.2 33.45 287.53 297.72 5.10 283.5 60.9 30.71 310.56 320.98 5.21 283.6 65.6 27.97 330.65 341.27 5.31 283.7 70.3 25.23 347.83 358.62 5.40 283.8 75.0 22.50 362.13 373.07 5.47 283.9 79.7 19.76 373.58 384.63 5.52 284.0 84.4 17.02 382.06 393.34 5.64 284.0 83.9 14.28 387.50 399.08 5.79 284.0 81.5 11.54 390.07 401.78 5.85 284.1 79.2 8.80 389.91 401.62 5.85 284.0 76.8 6.06 387.16 398.72 5.78 284.0 74.5 3.32 381.95 393.23 5.84 284.0 72.1 0.98 374.22 385.28 5.53 284.0 69.8 0.00 364.25 375.20 5.48 283.9 67.5 0.00 353.40 364.25 5.42 283.9 65.1 0.00 342.66 353.40 5.37 283.8 62.8 0.00 332.02 342.66 5.32 283.7 60.4 0.00 321.49 332.02 5.27 283.7 58.1 0.00 311.06 321.49 5.21 283.6 55.7 0.00 300.74 311.06 5.16 283.6 53.4 0.00 290.52 300.74 5.11 283.5 51.1 0.00 280.39 290.52 5.06 283.5 48.7 0.00 270.37 280.39 5.01 283.4 46.4 0.00 260.44 270.37 4.96 283.4 44.0 0.00 250.62 260.44 4.91 283.3 41.7 0.00 240.89 250.62 4.87 283.3 39.3 0.00 231.25 240.89 4.82 283.2 37.0 0.00 221.71 231.25 4.77 283.2 34.6 0.00 212.26 221.71 4.72 283.1 32.3 0.00 202.91 212.26 4.68 283.1 30.0 6 284.1 84 D.A.# ~ m 1110 0 ~~5 ..... 1 ~o ~g: ~ M.3 14.2 cfs cfs 0.0 0.00 5.9 5.95 11.9 11.89 17.8 17.84 23.8 23.78 29.7 29.73 35.7 35.67 41.6 41.62 47.6 47.56 53.5 59.83 59.5 70.65 65.4 81.62 71.3 92.76 77.3 104.04 83.2 114.98 81.8 118.46 78.8 120.44 75.9 122.45 72.9 124.43 69.9 126.30 66.9 128.16 64.0 130.00 61.0 131.83 58.0 133.65 55.1 135.45 52.1 137.23 49.1 139.00 46.1 135.64 43.2 130.47 40.2 125.22 37.2 119.90 34.2 114.51 31.3 109.06 28.3 103.63 25.3 98.26 22.4 92.89 19.4 87.52 16.4 82.15 13.4 76.79 10.5 71.42 7.5 66.05 4.5 60.68 1.5 55.32 0.0 51.38 0.0 48.99 0.0 46.59 0.0 44.20 0.0 41.81 0.0 39.42 0.0 37.03 0.0 34.64 83 139 D.A.# Cl ~~ tJ ~!!! • ~ g~ 142.5 25.6 cfs cfs 0.0 0.00 5.6 5.57 11.1 11.14 16.7 16.71 22.3 22.28 27.8 27.85 33.4 33.41 39.0 38.98 44.6 44.55 50.1 50.12 55.7 55.69 61.3 61.26 66.8 66.83 72.4 72.40 78.0 77.97 83.5 83.54 89.1 89.10 94.7 94.67 100.2 100.24 105.6 105.81 111.4 111.38 116.9 116.95 122.5 122.52 128.1 128.09 133.7 133.66 139.2 139.23 141.4 141.42 138.6 138.63 135.8 135.85 133.1 133.06 130.3 130.28 127.5 127.50 124.7 124.71 121.9 121.93 119.1 119.14 116.4 116.36 113.6 113.57 110.8 110.79 108.0 108.00 105.2 105.22 102.4 102.44 99.7 99.65 96.9 96.87 94.1 94.08 91.3 91.30 88.5 88.51 85.7 85.73 82.9 82.94 80.2 80.16 77.4 77.37 74.6 74.59 141 141 9731 pnd3.Jds El<hibit F-1 D.A.# O.A.# 'II: ~ 0 Q. w ~ ;z iii ... ~ "D 8 ~ Qp 26.5 Tc 8.6 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 3.1 3.1 10.0 6.2 6.2 11.0 9.3 9.3 12.0 12.4 12.4 13.0 15.5 15.5 14.0 16.6 16.6 15.0 21.7 21.7 16.0 24.8 24.8 17.0 25.9 25.9 18.0 24.3 24.3 19.0 22.8 22.8 20.0 21.2 21.2 21.0 19.7 19.7 22.0 18.1 18.1 23.0 16.6 16.6 24.0 15.0 15.0 25.0 13.5 13.5 26.0 11.9 11.9 27.0 10.4 10.4 28.0 6.8 6.6 29.0 7.3 7.3 30.0 5.7 5.7 31.0 4.2 4.2 32.0 2.7 2.7 33.0 1.1 1.1 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 26 26 0.00 indicates inltal condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 13 Pond Routing EVENT• 50 D.A.# i & c <( 0 + 'Q 0 ..!. + ... "D " l c ~ A c > I c :!.! ~ dl 97.1 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 260.7 0.0 3.09 0.00 0.00 0.00 280.7 0.0 9.28 0.00 3.09 1.65 281.0 5.3 15.47 5.56 9.28 1.86 281.1 10.6 21.66 16.52 21.03 2.26 261.3 15.9 27.84 32.51 36.16 2.84 281.7 21.3 34.03 53.36 60.35 3.49 262.0 26.6 40.22 79.97 87.39 3.71 282.2 31.9 46.41 112.25 120.19 3.97 282.4 37.2 50.60 150.09 158.65 4.28 262.7 42.5 50.16 191.46 200.70 4.62 283.0 47.8 47.07 231.98 241.62 4.82 283.2 53.2 43.97 269.04 279.05 5.01 283.4 58.5 40.88 302.67 313.01 5.17 283.6 63.8 37.79 332.91 343.55 5.32 283.8 69.1 34.69 359.78 370.69 5.-46 283.9 74.4 31.60 383.14 394.47 5.67 284.0 79.7 28.51 402.37 414.74 6.18 284.1 85.1 25.41 417.68 430.87 6.59 284.2 90.4 22.32 429.28 443.09 6.91 284.2 95.7 19.22 437.36 451.60 7.12 284.3 95.1 16.13 442.06 456.56 7.25 284.3 92.5 13.04 443.63 458.21 7.29 284.3 69.8 9.94 4-42.17 456.67 7.25 284.3 67.1 6.65 437.84 452.11 7.14 284.3 84.5 3.75 430.60 444.69 6.95 284.2 61.6 1.10 421.17 -434.55 6.69 284.2 79.2 0.00 409.53 422.28 6.38 284.1 76.5 0.00 397.42 409.53 6.05 284.1 73.9 0.00 385.94 397.42 5.74 284.0 71.2 0.00 374.87 385.94 5.53 284.0 66.5 0.00 363.92 374.67 5.48 283.9 65.9 0.00 353.08 363.92 5.42 283.9 63.2 0.00 342.34 353.08 5.37 263.6 60.6 0.00 331.71 342.34 5.32 283.7 57.9 0.00 321.18 331.71 5.26 283.7 55.2 0.00 310.76 321.18 5.21 283.6 52.6 0.00 300.4-4 310.76 5.16 283.6 49.9 000 290.22 300.44 5.11 283.5 47.3 0.00 280.10 290.22 5.06 283.5 44.6 0.00 270.07 280.10 5.01 283.4 42.0 0.00 260.15 270.07 4.96 283.4 39.3 0.00 250.33 260.15 4.91 283.3 36.6 0.00 240.60 250.33 4.86 283.3 34.0 7 284.3 96 0.A.# 0 w m Cl) 0 _, ~ w 0 ... ~o5 l 2f ~ 95.4 14.2 cfs cfs 0.0 0.00 6.7 6.73 13.5 13.47 20.2 20.20 26.9 26.93 33.7 33.66 40.4 40.40 47.1 47.13 53.9 53.86 60.6 67.56 67.3 79.82 74.1 92.27 80.8 104.90 87.5 117.60 94.3 129.87 92.6 133.83 69.3 136.09 85.9 138.38 82.5 140.53 79.2 142.66 75.8 144.78 72.4 146.88 69.1 148.96 65.7 151.13 62.3 153.59 59.0 155.95 55.6 158.21 52.2 154.49 48.9 146.59 45.5 142.61 42.1 136.54 38.6 130.40 35.4 124.19 32.0 117.91 28.7 111.57 25.3 105.22 21.9 98.89 18.6 92.65 15.2 86.57 11.8 80.49 8.5 74.41 5.1 66.34 1.6 62.26 0.0 57.80 0.0 55.09 0.0 52.38 0.0 49.67 0.0 46.97 0.0 44.26 0.0 41.55 0.0 38.85 9-4 158 D.A.# 0 _, ~ tl <( ..... .. ..... !!? jj e~ 162.0 25.6 cfs cfs 0.0 0.00 6.3 6.33 12.7 12.66 19.0 18.99 25.3 25.32 31.7 31.65 38.0 37.96 44.3 44.31 50.6 50.64 57.0 56.97 63.3 63.30 69.6 69.63 76.0 75.96 82.3 82.29 88.6 88.62 95.0 9-4.95 101.3 101.26 107.6 107.61 113.9 113.94 120.3 120.27 126.6 126.60 132.9 132.93 139.3 139.26 145.6 145.59 151.9 151.92 158.3 158.25 160.7 160.74 157.6 157.58 154.4 154.41 151.2 151.25 146.1 148.08 144.9 144.92 141.6 141.75 138.6 138.59 135.4 135.42 132.3 132.26 129.1 129.09 125.9 125.93 122.8 122.76 119.6 119.60 116.4 116.43 113.3 113.27 110.1 110.10 106.9 106.94 103.8 103.77 100.6 100.61 97.4 97.44 94.3 94.28 91.1 91.11 87.9 87.95 84.8 84.78 161 161 9731 pnd3.x1s Exhibit F-1 D.A.# D.A.# .. i. 6l I! z 8' J iii i 8 Qp 29.8 Tc 8.6 inc 1.0 nme cfa cfa 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 3.5 3.5 10.0 6.9 6.9 11.0 10.4 10.4 12.0 13.9 13.9 13.0 17.4 17.4 14.0 20.8 20.8 15.0 24.3 24.3 16.0 27.8 27.8 17.0 29.0 29.0 18.0 27.3 27.3 19.0 25.6 25.6 20.0 23.8 23.8 21.0 22.1 22.1 22.0 20.3 20.3 23.0 18.6 18.6 24.0 16.9 16.9 25.0 15.1 15.1 26.0 13.4 13.4 27.0 11.7 11.7 28.0 9.9 9.9 29.0 8.2 8.2 30.0 6.4 6.4 31.0 4.7 4.7 32.0 3.0 3.0 33.0 1.2 1.2 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 29 29 0.00 indicates lnital condition EXHIBIT "F·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #3 Pond Routina EVENT• 100 O.A.# c g ~ l! A < ... 0 t: ... "ti ~ ... "ti + i ft ! j!! ~ c .. ~m Ii 109.6 18.3 cfa cfa cfa cfa ft cfa 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 3.47 0.00 . 0.00 0.00 280.7 0.0 10.42 0.15 3.47 1.66 281.0 6.0 17.37 6.76 10.57 1.90 281.2 12.0 24.31 19.40 24.12 2.36 281.4 18.0 31.26 37.67 43.71 3.02 281.8 24.0 38.20 61.80 68.93 3.56 282.1 30.0 45.15 92.38 100.01 3.81 282.3 36.0 52.10 129.31 137.53 4.11 282.6 42.0 56.81 172.48 181.40 4.46 282.9 48.0 56.31 219.77 229.29 4.76 283.1 54.0 52.84 266.09 276.08 4.99 283.4 60.0 49.36 308.53 318.93 5.20 283.6 66.0 45.89 347.11 357.89 5.39 283.8 72.0 42.42 381.74 393.00 5.63 284.0 78.0 38.95 411.31 424.16 6.42 284.1 84.0 35.47 436.08 450.25 7.09 284.3 90.0 32.00 456.29 471.55 7.63 284.3 96.0 28.53 472.18 488.29 8.06 284.4 102.0 25.05 483.96 500.71 8.37 284.5 108.0 21.58 491.85 509.02 8.58 284.5 107.4 18.11 496.04 513.43 8.70 284.5 104.4 14.63 496.72 514.15 8.71 284.5 101.4 11.16 494.07 511.36 8.64 284.5 98.4 7.69 488.26 505.23 8.49 284.5 95.4 4.22 479.45 495.95 8.25 284.4 92.4 1.24 467.79 483.66 7.94 284.4 89.4 0.00 453.90 469.03 7.57 284.3 86.4 0.00 439.54 453.90 7.18 284.3 83.4 0.00 425.90 439.54 6.82 284.2 80.4 0.00 412.97 425.90 6.47 284.2 77.4 0.00 400.69 412.97 6.14 284.1 74.4 0.00 389.04 400.69 5.83 284.0 71.4 0.00 377.95 389.04 5.55 284.0 68.4 0.00 366.96 377.95 5.49 283.9 65.4 0.00 356.09 366.96 5.44 283.9 62.4 0.00 345.32 356.09 5.38 283.8 59.4 0.00 334.66 345.32 5.33 283.8 56.4 0.00 324.11 334.66 5.28 283.7 53.4 0.00 313.65 324.11 5.23 283.7 50.4 0.00 303.30 313.65 5.18 283.6 47.4 0.00 293.05 303.30 5.12 283.5 44.4 0.00 282.91 293.05 5.07 283.5 41.4 0.00 272.86 282.91 5.02 283.4 38.4 9 28-4.5 108 D.A.# 0 w m II) 0 0 ~~~ i Ii 107.5 14.2 cfa cfa 0.0 0.00 7.6 7.58 15.2 15.17 22.8 22.75 30.3 30.34 37.9 37.92 45.5 45.50 53.1 53.09 60.7 60.67 68.3 75.92 75.8 89.74 83.4 103.79 91.0 118.03 98.6 132.16 106.2 145.99 104.4 150.47 100.6 153.03 96.8 155.54 93.0 157.97 89.2 160.39 85.4 162.79 81.6 165.24 77.8 168.24 74.0 171.11 70.2 173.86 66.4 176.50 62.6 179.02 58.9 174.79 55.1 168.11 51.3 161.34 47.5 154.47 43.7 147.53 39.9 140.50 36.1 133.39 32.3 126.23 28.5 119.05 24.7 111.89 20.9 104.75 17.1 97.63 13.3 90.53 9.6 83.46 5.8 76.61 2.0 69.76 0.0 64.74 0.0 61.68 0.0 58.63 0.0 55.58 0.0 52.53 0.0 49.48 0.0 48.43 0.0 43.38 106 179 D.A.# 0 -'~ t? < ... • ... !!! ·;c ~~ w 183.4 25.6 cfs cfs 0.0 0.00 7.2 7.17 14.3 14.33 21.5 21.50 28.7 28.66 35.8 35.83 43.0 42.99 50.2 50.16 57.3 57.32 64.5 64.49 71.7 71.65 78.8 78.82 86.0 85.98 93.1 93.15 100.3 100.31 107.5 107.48 114.6 114.64 121.8 121.81 129.0 128.97 136.1 136.14 143.3 143.31 150.5 150.41 157.6 157.64 164.8 164.80 172.0 171.97 179.1 179.13 182.0 181.95 178.4 178.37 174.8 174.79 171.2 171.20 167.6 167.62 164.0 164.04 160.5 160.46 156.9 156.87 153.3 153.29 149.7 149.71 146.1 146.13 142.5 142.54 139.0 138.96 135.4 135.38 131.8 131.80 128.2 128.21 124.6 124.63 121.0 121.05 117.5 117.47 113.9 113.88 110.3 110.30 106.7 106.72 103.1 103.13 99.6 99.55 96.0 95.97 182 182 9731 pnd3.xls Exl1ibit F-1 ~-- a WOODCREEK DETENTION FACILITY #3 5 Year Event Hydrograph Pond 120.00 -...---------------------------------... 100.00 / 80.00 / / / / 60.00 40.00 20 .00 / / / / ' ' ' ' ' ' ' ' ' 0.00 JL_--+ _ _..lflt.~~==========::::;:===--_J 0.00 5.00 10.00 15.00 20.00 Time(min.) 25.00 30.00 35.00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 7/25/98 Exhibit F-2 WOODCREEK DETENTION FACILITY #3 10 Year Event Hydrograph Pond 140.00 .....-----------------------------------. 120.00 100.00 80.00 / / 60 .00 40.00 20.00 / / / / / / / 0 .00 JL_----<,___~6~============::::;:==~_J 0.00 5.00 10.00 15.00 20.00 Time(mln.) 25.00 30.00 35.00 40.00 --Pond3 --Qn+1 Prop10A --Prop108 --TOTAL PROPOSED ROUTED ---Exist3 7/25/98 Exhibit F-2 140.00 120 .00 100 .00 i' s 80 .00 a 60 .00 40.00 20.00 WOODCREEK DETENTION FACILITY #3 25 Year Event Hydrograph Pond / / / / / / / / o.oo JL--+---~~============::s;:==:___J 0 .00 5.00 10.00 15 .00 20.00 Tlme(min.) 25.00 30 .00 35 .00 40.00 --Pond3 --Qn+1 Prop10A --Prop108 --TOTAL PROPOSED ROUTED - - -Exist3 7/25/98 Exhibit F-2 160.00 140.00 120.00 100 .00 80.00 60.00 40.00 WOODCREEK DETENTION FACILITY #3 50 Year Event Hydrograph Pond / / / / / / / / 0 .00 JL-~--"'~~===========:::::;:==-_J 0 .00 5.00 10.00 15.00 20.00 Time(mln.) 25.00 30.00 35.00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 7/25/98 Exhibit F-2 180.00 160.00 140.00 120 .00 -. .! ~ 100.00 a 80.00 60.00 40.00 20.00 WOODCREEK DETENTION FACILITY #3 100 Year Event Hydrograph Pond / / / / / / / / o.oo 1L----+--~~=====;:::::===:=======s===-_J 0.00 5 .00 10.00 15.00 20.00 Time (min.) 25.00 30.00 35 .00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 7/25/98 Exhibit F-2 0 .600 0.500 ~ 0.400 1 t iii 0 .300 0 .200 0.100 WOODCREEK DETENTION FACILITY #3 Stage-Storage Curve o .ooo+---~~~----i1~--4l,.::::::::::~~~~~-+-~~~~~~+-~~~~~--<~~~~~~-+-~~~~~~+-~~~~~-i 280 281 282 283 284 285 286 287 Elevation (msl) Exhibit F-3 WOODCREEK DETENTION FACILITY #3 Stage-Discharge Curve 0 .000+-~~~___.,"'----1-~~~~~--+~~~~~~+-~~~~~-+-~~~~~__,~~~~~~+-~~~~~~ 280 .0 281 .0 282 .0 283 .0 284 .0 285 .0 286 .0 287 .0 Elevation (msl) Exhibit F-3 Scale: 1"=200' Exhibit G-J Cross Section Map woodcreek10 Plan 01 7/28/98 300 ------------------!rib 3 ------------------ 295 290 g c ~ 285 ~ w 280 275 270 +--r-.,...--,--~-,----,--,--,.-...,---,---,---,--~~-r--,--,.---,...----,---,---,--~~---,,---,--,.---,...----,---,----, 0 200 400 600 800 1000 1200 Main Channel Distance (ft) Legend WS 100 Yr . Storm WS 50 Yr . Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground EXHIBIT G-2 woodcreek10 Plan 01 7/28/98 trib3 -----------------------------~ Legend 288 WS 100 Yr. Storm WS 50 Yr . Storm WS 25 Yr. Storm WS 10 Yr. Storm 286 WS 5 Yr. Storm Ground 284 g 282 c .Q iii > _gi w 280 278 276 200 250 300 350 400 450 Main Channel Distance (ft) EXHIBIT G-2 HEC-AAS P18n: Plen 01 Riw": follfire trill Reach: trib 3 ·•:Reectl '· ~si.-• Q Toilil •;, 'MinChEl;f ;) w.s: EllV' .;_ tCllW.S. E.G. Elev E.G. Slape' Vel etn~., ,. FloW.AiN"' ·'Tap Wtdlh .. , -1 Fn1udet Chi' .,.;;_: (c:fa) ""'~ . ~;,(ft) ~,/&(ft) 'J ·: ,._':.(ft) •,"«:>(ft) (Ml) ;~ .. Ill/al (1qfl), (ft) ... · '-{: -~~· ,,-trib3 1100 .. 138.00 274.50 278.66 277.46 278.95 0.006009 5.38 49.76 22.67 0.46 1111°3 ·S .J: 1100 122.00 274.50 278.« 277.31 278.71 0.008001 5.17 «.91 21.55 0.47 trib 31 " 1100. 108.00 274.50 278.23 277.15 278.49 0.008006 4.98 40.54 20.49 0.47 lrll3 .. 1100.; -;.:'.• 94.00 274.50 278.01 276.98 278.25 0.008001 4.76 36.10 19.35 0.47 trib 3. 1100:<>,:.;:l'.-. 84.00 274.50 277.83 276.84 278.06 0.008002 4.59 32.85 18.47 0.46 <~ ': ..j~-tit) 3 ;.• 1200 ,-, .... 138.00 277.50 280.87 281.40 0.015483 6.93 35.51 17.05 0.67 trib3 1200' t!! 122.00 277.50 280.67 281.16 0.015534 6.66 32.08 16.25 0.66 trib3 1200 108.00 277.50 280.46 280.94 0.015584 6.40 29.02 15.51 0.65 trib 3'. 1200 ; ... 94.00 277.50 280.27 280.70 0.015665 6.11 25.88 14.70 0.65 trib3 1200~ ... "-. 84.00 277.50 280.11 280.52 0.015734 5.89 23.60 14.09 0.64 ,·~ . ;x· ·~~ '>J.i 11113 .•. 1350 . ::. Cui-t ., 11113 1400 . ~; ~· 138.00 278.16 285.09 281.54 285.49 0.000175 5.11 27.50 4.04 0.34 tti3 1400 <. 122.00 278.16 283.99 281.27 284.« 0.000244 5.37 23.08 4.02 0.39 Ill> 3 1400. , ... 108.00 278.16 283.22 281.03 283.68 0.000306 5.47 19.99 4.00 0.43 trib3 1400 94.00 278.16 282.69 280.77 283.13 0.000335 5.32 17.88 3.99 0.44 11113'' 1400 /"" ·=· 84.00 278.16 282.37 280.59 282.77 0.000342 5.12 16.59 3.99 0.44 ;t, trib3 1.a-1 88.00 281.30 284.96 285.55 0.000598 6.17 14.47 4.01 0.57 trib3 1-401 p·.· 78.00 281.30 283.61 283.61 284.77 0.002180 8.66 9.09 3.97 1.00 lrib3 1-401 69.00 281.30 283.43 283.43 284.50 0.002247 8.32 8.36 3.96 1.01 trib 3 1-401 60.00 281.30 283.24 283.24 284.22 0.002315 7.94 7.61 3.96 1.00 11113 1-401 53.00 281.30 282.82 283.08 284.06 0.004083 8.96 5.95 3.95 0.23 ···:· ~: trt>a~~ ;· c::~ 1450 ,/:v. Culwrt -"'~~;>·~~-"•r: ·~~ '1113 .. 1500 e;<•.:>'1; 88.00 281.52 286.32 283.39 286.39 0.000087 2.68 174.03 56.85 0.22 tdli'S ~· 7,:t . 1500:.tS<,-.,:,, 78.00 281.52 285.86 283.28 285.93 0.000101 2.68 1'48.84 51.83 0.23 1111'3:, · u;oo -~ft::~., 69.00 281.52 285.55 283.18 285.61 0.000105 2.60 133.13 48.44 0.24 '9>3. "· 1500.' ''/:.': 60.00 281.52 285.24 283.07 285.29 0.000108 2.48 118.63 45.08 0.23 111)3'" ';., .. 1500" .,,. 53.00 281.52 284.96 282.96 285.03 0.000110 2.38 107.33 42.41 0.23 ~,/it'.~~ ,,., .... trib3 " 1600 88.00 285.50 287.99 287.99 288.65 0.039206 8.07 20.90 17.26 0.95 111>3 1600 . 78.00 285.50 287.86 287.86 288.49 0.039629 7.82 18.74 16.34 0.95 trib3\ 1600 89.00 285.50 287.74 287.74 288.34 0.040208 7.56 16.81 15.47 0.94 trib3 1600" " 60.00 285.50 287.61 287.61 288.18 0.040413 7.25 14.89 14.55 0.94 1111·3 1600~ 53.00 285.50 287.50 287.50 268.05 0.041012 7.00 13.30 13.75 0.93 trib;3. 1700 .. 65.00 292.50 295.39 294.53 295.58 0.007893 4.12 28.49 18.96 0.45 H>3 1700 58.00 292.50 295.25 294.42 295.43 0.007870 3.97 25.91 18.09 0.44 111>3 , 1700 . "" 52.00 292.50 295.12 294.32 295.29 0.007923 3.84 23.56 17.26 0.44 '1113 '. 1700 " 46.00 292.50 294.98 294.22 295.13 0.008042 3.71 21.11 16.35 0.44 Ill> 3 """' . 1700, . T. 41.00 292.50 294.85 294.13 295.00 0.008133 3.59 19.07 15.55 0.44 EXHIBIT G-3 282 280 g c ,g 278 "' > ..9! UJ 276 woodcreek10 Plan 01 7/28/98 ds of pond 3 RS = 1100 i.---------.12 ---------.oe -----------.12 -------~ 274 -1------------------~----------------~--------~ 10 15 20 25 30 35 40 45 50 55 Station (ft) Legend WS 100 Yr . Storm WS 50 Yr. Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground • Bank Sta EXHIBIT G-3 g c :B co > ..S! w woodcreek10 Plan 01 7/28/98 tailwall of 48" pipe culvert RS= 1200 286 --------.12 --------0----.00 284 282 280 278 .12 -----------~-------~ Legend WS 100 Yr . Storm WS 50 Yr . Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr. Storm Ground • Bank Sta 276 -+---,-~~-~~--,-~~-.,.--,----,-~~-.,.--,---,--...~r--.,.--,---,--...~r--.,.---,---,--...-r--.,.--,---.--...-r---,----, 0 5 10 15 20 25 30 35 Stat ion (ft ) EXHIBIT G-3 woodcreek10 Plan 01 7/28/98 48" Pipe Culvert RS= 1350 Culv D 288 ~==============~ .. ~======~=:;:~:::::~~=-~-06~~~-=~~~~=:;=~==-=~:::;:;~-;;:;::;~~~:----::-:-::;"'.".'"7.,..,..-::-=-:~~=-:.,...,.,---1•~~----:-~-:-~~----. Legend 286 284 g c :8 282 «I > J! w 280 278 276 +---.-~.------.-----.-~.,---,----.~..,...----r----..,.-----r---.-~.------.----,.~.,.---,----.~..,...----r----..,.-----r---.-~~--.----,.~.,.---,----.~..,...----r-~.-----r---.----. 0 5 10 15 20 25 30 35 Station (ft) WS 100 Yr. Stonn WS 50 Yr. Stonn WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta EXHIBIT G-3 g c: .2 iii > .9! w 286 284 282 280 woodcreek10 Plan 01 7/28/98 48" Pipe Culvert RS = 1350 Culv U 278 -+-~~~~~~~~--.-~~~---,~~~~~~~~~~~--.-~~~~,--~~~~~~~~~~--,-~~~---, 0 5 10 Station (ft) 15 20 WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta EXHIBIT G-3 g c ,g l'U > ~ w woodcreek10 Plan 01 7/28/98 inlet no 7 dowstream RS= 1400 I 288 ~==================..12 -----------------.014 ---~==========-· 12 -=========~ .------,....---------, Legend 286 284 282 280 278 -+-------~-~---~----.--.-----~-~------..-----r----~----.--.-----~-----, 0 5 10 Station (ft) 15 20 WS 100 Yr. Storm WS 50 Yr . Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground • Bank Sta EXHIBIT G-3 woodcreek 10 Plan 01 7/28/9 8 inlet #7 upstream RS = 1401 .12 ,_ .0 14 .12 .I 288 ·-Legend WS 100 Yr . Storm WS 50 Yr. Storm 287 WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground 286 • Bank Sta 285 @: c: .2 ftj > .S! UJ 284 283 282 281 0 5 10 15 20 Station (ft) EXHIBIT G-3 g c :8 co > .s! w woodcreek10 Plan 01 7/28198 upstream 48" culvert pipe 287 286 285 284 283 282 28 1 +-~-,--~-..-~--.-~~.---~.,.-~-,--~-..-~~~--..~~..----~~~~~-..-~--.-~~.---~-.--~-,--~-..-~~~---, 0 5 10 Station (ft) 15 20 WS 100 Yr . Storm WS 50 Yr. Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground • Bank Sta EXHIBIT G-3 g c .Q iO > .9! w woodcreek1 a Plan 01 7/28/98 RS= 1450 287 286 285 284 283 282 281 -1-~-,-~~~~~~~~~.-~~~~~~-r--~-.-~~,.-~~~~~~-r--~-,-~~.-~-.,...-~~~~-r--~-,-~--, 0 20 40 Station (ft) 60 80 Legend WS 100 Yr . Storm WS 50 Yr . Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground • Bank Sta EXHIBIT G-3 € c: :8 t'CI > .!! w woodcreek10 Plan 01 7/28/98 headwall of 48 " culvert upstream of woodcreek driYe RS = 1500 288 --------.12 ---------.014 .12 287 286 285 284 283 282 281 +--~-~-~-~-~-~--~-~-~-~-~-~-~-~-~-~--~-~-~~ 0 20 40 Station (ft) 60 80 Legend WS 100 Yr . Storm WS 50 Yr . Storm WS 25 Yr . Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta EXHIBIT G-3 € c :8 !a > .J! w woodcreek10 Plan 01 7/28/98 upstream of pond 2 RS = 1600 2 94 -------.12 -------~.os --~---------.12 ----------.-----,.----..,..-------. Legend 292 290 288 286 284 -+-----~----~-~----~--~-~~-~-~~-~-~~-~-~---~ 0 10 20 30 40 50 Stat ion (ft) WS 100 Yr. Storm WS 50 Yr . Stonn WS 25 Yr . Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta EXHIBIT G-3 € c :8 ftl > .9! w 29 7 296 295 294 293 woodcreek10 Plan 01 7/28/98 section upstream of pond 1 RS = 1700 ------------.12 --------------.00 -----;------ 292 +---,--,----,---.--..,.----,--,----.---.--.---~-,----.---.-.----,--r--.---.-.----,---r---.---.-.----,---r---.---.-----, 10 15 20 25 Station (ft) 30 35 40 Legend WS 100 Yr . Storm WS 50 Yr. Storm WS 25 Yr . Storm WS 10 Yr . Storm WS 5 Yr . Storm Ground • Bank Sta EXHIBIT G-3 - - '!II ""' - - I Drainage Report FOR WOODCREEK SECTION 10-A ANJJ 10-B / BrookwalwClrde VICINITY MAP NTS JULY, 1998 REVISED SEPTEMBER , 1998 Prepared By: McClure Engineering, Inc. 1722 Broadmoor Drive, Suite 210 Bryan, Texas 77802 (409) 776 -6700 Drainage Report FOR WOODCREEK SECTION 10-A AND 10-B Sebooto Rood / --Clrde VICINITY MAP NTS JULY, 1998 REVISED SEPTEMBER, 1998 Prepared By: McClure Engineering. Inc. 1722 Broadmoor Drive, Suite 210 Bryan , Texas 77802 ( 409 ) 776 -6700 CERTIFICATION I, Joel J. Mitchell, Registered Professional Engineer No. 80649, State ofTexas, certify that this report for the drainage design for WOODCREEK, SECTIONS 10-A and 10-B, was prepared by me in accordance with the provisions of the City of College Station Drainage Policy and Design Stan~e owners thereof .l°~;-OF-ri~~\\ ~~~~········i'5'''' if•.· * ·. *t. n* • • *'1 1 .. : .............. ~ .. 1 Z JOEL J. MITCHELL 2 l-··r·············:··l ., '\··~ 80649 ((;_<:>:$1 ••.0-i)~~t~l~~--~~ '\\~~A\.~~..#" .,,,, .... ~ DRAINAGE REPORT WOODCREEK SECTION 10-AAND 10-B INTRODUCTION TABLE OF CONTENTS WOODCREEK SECTION 10-A AND 10-B GENERAL LOCATION AND DESCRIPTION FLOOD HAZARD INFORMATION PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION DRAINAGE DESIGN CRITERIA STORM DRAIN FACILITY DESIGN DETENTION FACILITY DESIGN CONCLUSION EXHIBITS 1 1 1 2 2 2 3 5 FEMA FLOOD INSURANCE RATE MAP EXCERPT "A" DRAINAGE AREA MAP -PROPOSED CONDITIONS "B" RATIONAL FORMULAS DRAINAGE AREA CALCULATIONS "C-1" INLET COMPUTATIONS "C-2" PIPE SIZE CALCULATIONS "C-3" CUL VERT ANALYSIS "C-4" PROPOSED DETENTION POND ROUTING (Detention Facility# 1) "D-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #1) "D-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #1) "D-3" PROPOSED DETENTION POND ROUTING (Detention Facility #2) "E-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #2) "E-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #2) "E-3" PROPOSED DETENTION POND ROUTING (Detention Facility #3) "F-1" PROPOSED DETENTION POND HYDROGRAPHS (Detention Facility #3) "F-2" STAGE/STORAGE AND STAGE/DISCHARGE CURVES (Detention Facility #3) "F-3" CROSS SECTION MAP "G" WATER SURFACE PROFILE "G-1" WATER SURFACE CROSS SECTIONS AND DATA "G-2" HEC-1 RUN "G-3" DRAINAGE REPORT 11 WOODCREEK SECTION 10-A AND 10-B DRAINAGE REPORT WOODCREEKSECTIONl~AANDl~B INTRODUCTION: The purpose of this report is to study the effects of the development of Woodcreek Sections lOA and 10-B. 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 29-acre subdivision is located at the end of Woodcreek Drive. The development will extend Woodcreek Drive with the future development of Section 10-B connecting Woodcreek Drive with the existing extension of Faulkner Drive. Sections 10-A aIXi 10-B are bounded by Foxfire Phase 2 to the northeast, Woodcreek Section Two and Three to the west and undeveloped property owned by Robert and Marguerite Carroll to the southeast. The site is mostly wooded with gently rolling terrain with an average slope of 2.00/o to 2.5%. FLOOD HAZARD INFORMATION: This property is not located in a 100-Year Flood Hazard Area according to the Flood Insurance Rate Maps for Brazos County, Texas and Incorporated Areas, Map No. 48041C205 C effective July 2, 1992 prepared by the Federal Emergency Management Agency (See Exhibit "A"). DRAINAGE REPORT 1 WOODCREEK SECTION 10-A AND 10-B PRIMARY & SECONDARY DRAINAGE BASIN DESCRIPTION: The primary drainage basin for the site is the Foxfire Tnbutary of Carters Creek. The site is not located on the primary channel. The secondary drainage basin is a branch of the Foxfire Tnbutary. This branch is a well- defined channel that runs along the boundary of Woodcreek Sections One, Two and 10 (A & B.) Exhibit "B" shows the proposed development and the location of the proposed detention facilities next to the branch of the Foxfire Tributary. DRAINAGE DESIGN CRITERIA: All drainage is in ac.cordartce with the City DPDS. The design rainstorm is the 10-year event. Flow calculations for all drainage areas are based on the Rational Method. Pipe sizing is in accordance with Manning's Equation with an ''n" of0.014 per the DPDS. The storage vohnne required for the detention pond is based on a triangular hydrograph (base = 3• Tc). The Pre-development area used for the study is the present day conditions as shown in Exlubit "B". STORM DRAIN FACILITY DESIGN: Storm water from the site will be captured in the curbs and gutters and conveyed by R.C.P . storm drain to the detention facilities. Exlubit "C-1" shows the rational calculations for the various drainage areas corresponding to the Drainage Area Map (Exlubit "B"). Exlubit "C-2" shows the inlet computations. Exhibit "C-3 " shows the pipe size calculations for the storm drain. Exhibit "C-4" shows the culvert analysis for the 48" RCP culvert which crosses Woodcreek Drive. Please note that the design shown in exlubit "C-4" is the more conservative of the two methods used (FHWA in DRAINAGE REPORT 2 WOODCREEK SECTION 10 -A AND 10-B Exlubit "C-4", and HEC-RAS Energy shown in Exhibit "G".) Because this is the more conservative method, the headwater elevations shown on sheet 2 of the drawmgs reflect these numbers . DETENTION FACILITY DESIGN: Three detention fucilities will be constructed as part of Section 10-A. The three facilities will provide the detention requirements for both Section 10-A and 10-B. This will be accomplished by providing over-detention in Detention Facility #3. Exhibit "B" shows the drainage areas for the proposed development and the location of the three detention fucilities. The three facilities were analyzed individually. The study point for Detention Facilities #1 and #2 is the outfull of each respective pond. The study point for Detention Facility #3 is the downstream end of drainage area 18. Exhibits "D", "E", and "F° shows the routing and hydrograph charts for the 5,10, 25, 50, and 100 year storm events. The fullowing swnmacy tables show the Pre-development and Post-development flows at the study points. ·l ,? Study Point 1 (Detention Facility #1 Outlet) ~~---r~~~~~~~ Design Event Pre-Development Post-Develo pment Water Surface Elev. 40 cfs 41 .cfs . -296.40 45 cfs 46 cfs 296.60 52 cfs 52 cfs 296.90 59 cfs 58 cfs 297.10 66 cfs 65 cfs 297.10 Top of Berm= 298.00, Weir Elev.= 297.00, Weir Length= 10' DRAINAGE REPORT 3 WOODCREEK SECTION 10-AAND 10-B - Study Point 2 (Detention Facility #2 Outlet) ----------r---------------------------1 Design Event Pre-Development Post-Development Water Surface Elev. ---------+---------------------------1 54 cfs 53 cfs 290.20 --------+---~---------------1 61 cfs 60 cfs 290.40 -------+---------------------i Q25= 70 cfs 69 cfs 290.50 --------+-------------------------1 79 cfs 78 cfs 290.60 89 cfs 88 cfs 290. 70 Top of Berm= 292.00, Weir Elev.= 291.00, Weir Length= 10' Study Point 3 (Downstream End of Drainage Area 21) Design Event Pre-Development Post-Develo pment Water Surface Elev. Qs= 108 cfs 108 cfs 283.50 Q10= 123 cfs 122 cfs 283.70 Q2s= 141 cfs 139 cfs 284.10 Qso= 161 cfs 158 cfs 284.30 Q100= 182 cfs 179 cfs 284.50 Top of Berm= 285.00, Weir Elev.= 284.50, Weir Length= 5' In some cases, tbe Post-Development flow exceeds the Pre-Development flow by one cubic foot per second. This difference is considered negligible considering the use of empirical formulas such as Manning's Equation and the Rational Method. Because a small creek crosses some of the lots to be developed, we have developed a water surfuce model using the HEC-RAS modeling system. Note that the final plats for this development shows public drainage easements where the small creek crosses the lots. The computed water surface of the statistical 100 year storm stays within these easements. Exhtoit "G" is a map with the appropriate cross sections, drainage areas, and 100 year water surface delineated. Exlnoit "G-1" DRAINAGE REPORT 4 WOODCREEK SECTION 10-A AND 10-B shows the water surface profile for the 100, 50, 25, 10, and 5 year storms. The profile also demonstrates the capacity of the 48" Pipe Culvert crossing Woodcreek Drive. The various sections along the creek are shown in Exlnoit "G-2" in both tabular and graphical form. Exlnbit "G-3" is the HEC-1 analysis of the flows in the creek. The analysis was performed using SCS Type II, 24 hour storm with SCS Curve Number Losses with the SCS Lag Equation and Unit Hydrograph. The flows generated using this analysis are much higher than the flows generated using the rational method which was shown in the original report. Our experience shows that the flows generated using the SCS methods are overly conservative. We have used the overly conservitive flows to insure that private property is not damaged during major flooding events. This decision makes the 48" culvert at Woodcreek drive appear to fail the one foot offreeboard requirement for the 25 year event. The great disparity (>400/o) in flows between the SCS and Rational Method accounts for this difference. Per this analysis the 25 year event still does not go over the roadway. Based on this we-feel that the design is in compliance with the requirements of the ordinance. CONCLUSION: For all of the design events, the Post-development flows dO''not exceed the present day Pre- developmmt flows. The l 00 year event is contained in the pond and released through the pond outlet device for .0ete'ntion Facility #2. The 100 year event for Detention Facilities #1' and #3 is released through a combination of the pond outlet device and emergency overflow weir. The drainage design for this site meets the requirements as stated in the City of College Station Drainage Policy and Design Standards . DRAINAGE REPORT 5 WOODCREEK SECTION 10-A AND 10-B Brazos County Unincorporated Areas 4811?5 ZONE X '----. -LIMIT OF C 'DETAILED ·. STUDY I Scale: 1" = 1000' .t of College Station _.,,.../. y 480083 r 0 (( ' ,, J '\\,t \. - RM52 x EXHIBIT A Flo od Insurance Ra e t Map Excerpt t Texas Brazos Coun y, t d Areas and lncorpora e . 4 B041C0205C Map Numbers. July 2, 1992 _ 1 1 Effective Dote: '- < s: UJ 0 0 a:: w ..J ..J < < Q. < 14. w UJ 0 j::: I-0 (.!) a:: ..J z < z < UJ z UJ (.) ~ :J:: < w z ..J > 0 :f! ..J a:: I-< w < w ~ ~ u; w (.!) I-0 UJ > >z 0 z a:: UJ < 0 0 I-::::> < a:: Q. I-o~ NO. AC. 0.4 0.55 0.9 ft. 1 4.27 . 4.00 0.27 0.00 1.75 510.0 2 6.22 1.00 5.22 0.00 3.27 530.0 3A 0.42 0.00 0.42 0.00 0.23 ·50.0 38 1.51 0.40 1.11 0.00 0.77 350.0 4A 0.59 0.00 0.59 0.00 0.32 50.0 48 0.67 0.00 0.67 0.00 0.37 50.0 5 4.13 0.00 4.13 0.00 2.27 250.0 6.1 2.16 0.00 2.16 0.00 1.19 350.0 6.2 0.81 0.00 0.81 0.00 0.45 50.0 6.3 0.39 0.00 0.39 0.00 0.21 100.0 7 0.44 0.00 0.44 0.00 0.24 100.0 7.1 1.08 0.00 1.08 0.00 0.59 100.0 8 4.50 0.00 4.50 0.00 2.48 200.0 9 0.21 0.00 0.21 0.00 0.12 20.0 10 1.35 1.00 0.35 0.00 0.59 100.0 11 2.11 0.00 2.11 0.00 1.16 350.0 12A 0.61 0.00 0.61 0.00 0.34 140.0 128 0.92 0.00 0.92 0.00 0.51 63.0 13 1.85 0.00 1.85 0.00 1.02 222.0 14 0.66 0.00 0.66 0.00 0.36 79.0 15 0.79 0.00 0.79 0.00 0.43 227.0 16.0 1.36 0.00 1.36 0.00 0.75 86.0 17A 0.53 0.00 0.53 0.00 0.29 140.0 178 1.14 0.00 1.14 0.00 0.63 ~21.0 18 0.00 0.00 0.00 0.00 0.00 1.0 19.0 0.89 . 0.00 0.89 0.00 0.49 050.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations WOODCREEK SECTION 1 OA AND B s: 0 s: s: ..J u.. 0 0 0 ..J ..J z u.. u.. ~ 5 a:: :J:: a:: u (.) w I-UJ I-. (.) a:: ..J ~ (.!) I-..J 0 I-u· w ..J ::::> z I-..J ..J w >< ::::> < UJ 'iij Cl) N I() 0 u.. (.!) ~ (.!) u.. > (.). ::::> !::! a ~ a ft. ft. ft. ft/s min min In/Hr cfs In/Hr cfs 10.0 1.0 1.0 1.0 8.6 8.6 6.76 11.8 8.2 14.3 10.0 1.0 1.0 1.0 9.1 9.1 6.59 21.6 8.0 26.2 0.5 230.0 1.3 1.2 3.8 5.0 8.22 1.9 9.9 2.3 12.0 50.0 0.8 1.4 4.8 5.0 8.22 6.3 9.9 7.6 0.5 330.0 2.0 1.3 4.7 5.0 8.22 2.7 9.9 3.2 0.5 330.0 2.0 1.3 4.7 5.0 8.22 3.0 9.9 3.6 6.0 500.0 5.0 1.6 8.0 8.0 6.95 15.8 8.4 19.1 8.0 200.0 4.0 1.4 6.7 6.7 7.47 8.9 9.0 10.7 0.5 400.0 4.0 1.6 4.5 5.0 8.22 3.7 9.9 4.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 1.8 9.9 2.1 1.0 100.0 1.0 1.0 3.2 5.0 8.22 2.0 9.9 2.4 1.0 100.0 1.0 1.0 3.2 5.0 8.22 4.9 9.9 5.9 2.0 900.0 7.0 1.4 13.3 13.3 5.52 13.7 6.8 16.7 0.2 200.0 2.0 1.7 2.2 5.0 8.22 ·o.9 9.9 1.1 1.0 300.0 1.5 1.1 5.9 5.9 7.78 4.6 9.3 5.5 7.0 200.0 4.0 1.3 7.0 7.0 7.32 8.5 8.8 10.2 1.4 227.0 2.3 1.2 5.2 5.2 8.12 2.7 9.7 3.3 0.6 429.0 8.6 2.0 4.1 5.0 8.22 4.2 9.9 5.0 2.2 @51.0 11.0 1.5 9.8 9.8 6.39 6.5 7.8 7.9 0.8 475.0 8.0 1.9 4.9 5.0 R22 3.0 9.9 3.6 5.0 93.0 1.0 1.2 4.4 5.0 8.22 3.6 9.9 4.3 0.9 580.0 7.0 1.7 6.5 6.5 7.54 5.6 9.1 6.8 1.4 160.0 1.6 1.1 4.6 5.0 8.22 2.4 9.9 2.9 6.0 107.0 1.2 1.1 6.4 6.4 7.58 4.7 9.1 5.7 1.0 1.0 1.0 10.4 0.0 5.0 8.22 0.0 9.9 0.0 0.5 400.0 2.0 1.3 5.9 5.9 7.77 3.8 9.3 4.6 0 I() 0 .... I() N 0 !: a !::! a ~ In/Hr cf s In/Hr cf s In/Hr 9.2 16.0 10.5 18.3 11.8 9.0 29.3 10.2 33.5 11.6 11.0 2.5 12.5 2.9 14.1 11.0 8.5 12.5 9.6 14.1 11.0 3.6 12.5 4.1 14.1 11.0 4.0 12.5 4.6 14.1 9.4 21.4 10.7 24.4 12.1 10.1 11.9 11.5 13.6 12.9 11.0 4.9 12.5 5.6 14.1 11.0 2.4 12.5 2.7 14.1 11.0 2.7 12.5 3.0 14.1 11.0 6.5 12.5 7.4 14.1 7.6 18.9 8.7 21.6 9.9 11.0 1.3 12.5 1.4 14.1 10.4 6.2 11.9 7.0 13.4 9.9 11.5 11.3 13.1 12.7 10.9 3.6 12.4 4.1 13.9 11.0 5.6 12.5 6.3 14.1 8.7 8.9 10.0 10.1 11.3 11.0 4.0 12.5 4.5 14.1 11.0 4.8 12.5 5.4 14.1 10.1 7.6 11.6 8.7 13.1 11.0 3.2 12.5 3.6 14.1 10.2 6.4 11.6 7.3 13.1 11.0 0.0 12.5 0.0 14.1 10.4 5.1 11.9 5.8 13.4 0 I() a cf s 20.7 37.8 3.3 10.9 4.6 5.2 27.6 15.4 6.3 3.0 3.4 8.4 24.4 1.6 7.9 14.7 4.7 7.1 11.4 5.1 6.1 9.8 4.1 8.2 0.0 6.6 0 0 0 0 .... .!: a In/Hr cfs 13.3 23.2 13.0 ,42.5 15.8 3.6 15.8 12.2 15.8 5.1 15.8 5.8 13.6 30.9 14.5 17.2 15.8 7.0 15.8 3.4 15.8 3.8 15.8 9.4 11.1 27.5 15.8 1.8 15.0 8.9 14.2 16.5 15.6 5.2 15.8 8.0 12.6 12.9 15.8 5.7 15.8 6.9 14.6 10.9 15.8 4.6 14.7 9.2 15.8 0.0 15.0 7.4 9/21/98 9731-dra.xls Exhibit C-1 c:s: $': w c 0 0:: w _J _J c:s: c:s: a. c:s: u.. w w 0 i== ..... c (!) 0:: _J z c:s: z c:s: w z w u s :c c:s: w _J > :E _J z ~ ~~ c w ~ 0:: ..... ~ (ii w (!) > >z 0 z 0:: w c:s: 0 c ..... ::::> c:s: 0:: a. ..... o~ NO. AC. 0.4 0.55 0.9 ft. 20A 1.19 0.00 1.19 0.00 0.65 300.0 208 0.95 0.00 0.95 0.00 0.52 70.0 21.0 4.02 2.01 2.01 0.00 1.91 100.0 22 4.52 2.52 2.00 0.00 2.11 300.0 Cul1 23.83 0.00 23.83 0.00 13.11 600.0 Cul2 3.46 2.65 0.00 0.81 1.79 508.0 Exist1 12.42 7.56 4.86 0.00 5.70 600.0 Prop1 10.49 . 5.00 5.49 0.00 5.02 600.0 Exist2 17.81 9.92 7.89 0.00 8.31 600.0 Prop2 16.55 7.56 8.99 0.00 7.97 600.0 Exist3 51.03 34.31 16.72 0.00 22.92 600.0 Pond3 4.21 0.50 3.71 0.00 2.24 300.0 Prop10A 24.54 13.54 11.00 0.00 11.47 600.0 Prop10B 19.75 6.01 13.74 0.00 9.96 500.0 EXHIBIT C-1 Rational Formula Drainage Area Calculations WOODCREEK SECTION 1 OA AND B $': 0 $': $': _J u.. 0 0 c _J _J z u.. u.. r:: s 0:: :c 0:: (3 (,) w ..... w ..... (,) 0:: _J ~ (!) ..... _J 0 ..... u w _J ::::> z ..... _J _J w > c:s: ::::> c:s: w 'i en N ll') 0 u.. (!) ~ (!) u.. > u ::::> !:::! a ~ a ft. ft. ft. ftls min min In/Hr cfs In/Hr cfs 3.0 1000 1.0 0.8 7.9 7.9 6.99 4.6 8.4 5.5 0.7 300.0 2.0 1.3 4.7 5.0 8.22 4.3 9.9 5.1 1.0 1800.0 18.0 1.8 17.5 17.5 4.78 9.1 5.9 11.2 3.0 300.0 3.0 1.0 9.6 9.6 6.44 13.6 7.8 16.5 13.0 970.0 22.0 1.7 15.0 15.0 5.19 68.0 6.4 83.5 7.0 78.0 1.0 0.9 10.8 10.8 6.11 10.9 7.4 13.3 13.0 400.0 10.0 1.4 11.7 11.7 5.87 33.5 7.2 40.8 13.0 400.0 10.0 1.4 11.7 11.7 5.87 29.5 7.2 36.0 13.0 800.0 18.0 1.7 14.1 14.1 5.36 44.5 6.6 54.6 13.0 800.0 18.0 1.7 14.1 14.1 5.36 42.7 6.6 52.4 13.0 2350.0 36.0 1.9 25.6 25.6 3.83 87.7 4.8 109.1 6.0 330.0 2.0 1.2 8.6 8.6 6.76 15.2 8.2 18.4 13.0 1400.0 26.0 1.8 18.3 18.3 4.67 53.5 5.8 66.0 5.0 200.0 1.0 0.8 14.2 14.2 5.35 53.3 6.6 65.3 0 ll') 0 ... ll') N !: a !:::! a In/Hr cf s In/Hr cfs 9.5 6.2 10.8 7.1 11.0 5.7 12.5 6.5 6.7 12.7 7.6 14.6 8.8 18.5 10.0 21.1 7.2 94.2 8.2 107.8 8.4 15.0 9.6 17.1 8.1 45.9 9.2 52.5 8.1 40.5 9.2 46.3 7.4 61.6 8.5 70.4 7.4 59.1 8.5 67.6 5.4 124.1 6.2 142.5 9.2 20.6 10.5 23.5 6.5 74.7 7.5 85.6 7.4 73.6 8.5 84.3 0 0 ll') ~ a In/Hr cf s 12.2 8.0 14.1 7.4 8.6 16.5 11.3 23.9 9.3 122.1 10.8 19.3 10.4 59.4 10.4 52.3 9.6 79.8 9.6 76.5 7.1 162.0 11.8 26.5 8.5 97.1 9.6 95.4 0 0 0 0 ... !: a In/Hr cfs 13.7 8.9 15.8 8.2 9.8 18.6 12.7 26.8 10.5 137.6 12.1 21.7 11.7 66.8 11.7 58.9 10.8 89.9 10.8 86.2 8.0 183.4 13.3 29.8 9.6 109.6 10.8 107.5 9121/98 9731-dra.xls Exhibit C-1 ~ . " 0 ~z ~~ 3A. 3B 4A. 4B 6.1 6.2 6.3 7 9 11 12A. 12B 13 14 15 16 17A. 17B 18 19 20A. 20B t < ii: ~ e : re .s ~ .. o= 0 ! CIC rii CIC c ... f = ds ""' G.I 0 t OS u 0 lll'A. I 2.5 I o.o lll'A. I 8.5 I 0.0 lll'A. I 3.6 I o.o lll'A. I 4.0 I 0.0 6.3 I 11.9 I o.o 6.3 I 4.9 I 0.0 12A. I 2.4 I 8.7 6.3 I 2.7 I 9.6 16 I 1.3 I 0.0 12A. I 11.5 I o.o 17A. I 3.6 I 2.2 17A. I 5.6 I 0.0 16 I 8.9 I 0.0 15 I 4.0 I 0.0 17B I 4.8 I 0.9 lll'A. I 7.6 I 0.0 lll'A. I 3.2 I o.o lll'A. I 6.4 I o.o lll'A. I o.o I o.o 20A. I 5.1 I 0.0 lll'A. I 6.2 I 0.0 :t-lA. I 5.7 I 0.0 EXHIBIT C-2 INLET COMPUTATIONS WOODCREEK SECTION 10A AND B ~ = ~ ..... CIC 0 '! ~ :.= .... "O ~ i ""' .... rJ:J ! rJ:J 'i ~ ""' 0 ·-"-""' = G.I r::J' Q. ~~ 2.5 I 281 0.1% 8.5 I 281 1.1% 3.6 I 28 I 0.2% 4.0 I 28 I 0.2% 11.9 I 281 2.1% 4.9 I 28 I 0.4% 11.1 I 391 3.9% 12.2 I 391 4.7% 1.3 I 391 0.1% 11.5 I 281 1.9% 5.8 I 391 1.1% 5.6 I ·281 0.5% 8.9 I 28 I 1.2% 4.0 I 281 0.2% ' 5.7 I 281 0.5% 7.6 I 28 I 0.8% 3.2 I 391 0.3% 6.4 I 281 0.6% o.o I 28 I 0.00/o 5.1 I 391 0.8% 6.2 I 28 I 0.6% 5.7 I 281 0.5% Q z ~ = ~ .... G.I = ~ .... OS 0 '! ~ 3 I 11.0 4 I 7.6 6.1111.9 6.21 4.9 6.31 11.1 7 I 12.2 9 I 1.3 11111.5 12 I 11.4 13 I 8.9 14 I 4.0 15 I 5.7 16 I 7.6 17 I 9.6 18 I 0.0 19 I 5.1 20 I 11.9 DESCRIPTION Recessed Low Point Inlet Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Low Point Inlet Recessed Inlet on Grade Recessed Inlet on Grade Recessed Inlet on Grade Recessed Low Point Inlet Recessed Low Point Inlet Junction Box Recessed Inlet on Grade Recessed Low Point Inlet ~ ,.J ""' ~ ~ ~ ,; l ,.J 'i "O ... .... e ~ ,.J ""' .= • G.I .... ~ ? Q. • 0 ~ rJ:J ~ = t c 'i ~ OS "O • u = ~ 0 ~ ~ 'i 'i ""' "O ·-•11111111111 = .... r::J' e ~ ""' ~ ~ 5 -~ < < Curb Inlet I Grate Inlet cfs I ft I ft I I fl I cfs I sq-ft I sq-ft 0 2.331 4.71 I 5 I o 0 2.331 3.26 I 5 I O 0.621 19.33 I 10 I 5.8 0.621 7.92 I 10 I o 2.331 4.75 I 10 I O 0.621 19.80 I 15 I 3 2.33 I 0.54 I 5 I o 0.621 18.53 I 15 I 2.2 0 2.331 4.88 I 5 I o 0.621 14.35 I 15 I O 0.62 I 6.45 I 5 I 0.9 0.621 9.17 I 10 I o 2.33 I 3.25 I 5 I O 0 2.331 4.11 I 10 I o 0 0.621 8.26 I IO I O 0 2.331 5.11 I 10 I o 9/21/98 9731-dra.xls Exhibit C-2 ~ 0 < ~ u Q z r-:1 .... 00 ~ g ~ = g Oll .... 0 0 ~ c.i ~ ~ ~ = EXHIBIT C-3 WOODCREEK SECTION 10A AND B « ~ Q = E Oll .... g, « ~ « = .... G,j ~ ~ Q. '2 ~ .... Q = ~ -.... Q. 00 ~ '2 .... ... = ~ G,j = .... ~ Q '"""' ~ c.. ·-"'O ~ = Q ~ -r-:1 c.i OS Q :s ~ Q .... ~ =--... ~~ < z ~ ~ 00 ~ ~ # # Ac . min yr cfs cfs # cfs •/o 0 fps 38 2 1.0 5.2 10 10.9 13 .6 1 13.6 0 .85 21 5.7 48 5 0 .7 5 .1 10 7 .6 9 .5 1 9 .5 0 .93 18 5 .3 6 .1 6 .2 1.2 6 .7 10 11 .9 14.9 1 14.9 0.50 24 4 .8 6.2 6 .3 1.6 6.8 10 16.3 16.3 1 16.3 0 .32 27 4 .1 6 .3 9 1.8 6.9 10 18.3 18.3 1 18.3 0 .23 30 3.7 7 10 2 .7 13 .9 10 20.3 20 .3 1 20 .3 0 .11 36 2.9 11 128 1.2 7 .0 10 11 .5 14.3 1 14.3 0 .94 21 5 .9 128 18 2 .0 7 .2 10 19.6 24 .5 1 24.5 1.35 24 7.8 13 14 1.0 9.8 10 8 .9 11 .1 1 11 .1 1 .28 18 6 .3 14 15 1.4 10.0 10 11.9 14.9 1 14.9 1.02 21 6 .2 15 178 1.8 10.6 10 15.3 19 .2 1 19 .2 1.68 21 8 .0 16 178 0 .7 6 .5 10 7 .6 9.5 1 9.5 0.94 18 5.4 178 18 3 .5 11.0 10 28.9 28.9 1 28.9 1.00 27 7.3 18 19 5 .5 11.1 10 45.3 45.3 1 45.3 0 .85 33 7 .6 19 208 6 .0 11 .2 10 49 .1 49 .1 1 49.1 0 .99 33 8 .3 208 HW1 7 .2 11.9 10 57 .3 57.3 1 57.3 1.35 33 9 .6 *Includes 25% Flow Increase for pipe sizes <2T' dla. ** See Plan & Profile for pipe slope used (Pipe slope >or= Friction slope) « ~ t;> ·-~ c.i OS z Q. OS ~ u cfs I 13.6 31 9 .4 31 14.9 3 1 16.3 40 18.3 42 20.2 30 14.3 60 24.5 230 11 .1 96 14.9 195 19 .1 225 9.5 31 28.8 24 45 .3 69 49.1 340 57.2 31 G,j a . ... ~ 43 ~ ... ~ min 0.09 0.10 0.11 0.16 0.19 0 .17 0.17 0.49 0 .26 0 .53 0 .47 0 .10 0.06 0 .15 0 .69 0 .05 "'O = r-:1 @ c.i ~ min 5 .24 5 .20 6 .76 6 .92 7.11 14 .11 7.20 7 .69 10.03 10.55 11 .02 6 .57 11 .08 11.23 11.91 11 .97 ~ ~ I ~ ~ I 9/21/98 9731-dra.xls Exh ibit C-3 Culvertl2 CulYBl't Description DUAL 18"RCP AT FAULKNER ORNE c 11WertDes1gn Circular Pipe No. Dia. (fl) Ploes 1.50 2 Culvert Analv•I• Calculations Total Flow per Critical Design Flow Pipe Depth(ll) S1orm (cfs) (cfs) de 5 13.30 8.85 1.05 10 15.00 7.50 1.10 25 17.10 8.55 1.15 50 19.30 9.85 1.20 100 21 .70 10 .85 1.25 ELhl = Hwi + Eli ho = TW or (de + 0)12 (Whiche-la Greater) n 0.014 Normal Depth (Ill 0 .87 0.94 1.04 1.14 1.30 EXHIBITC-4 CULVERT ANALYSIS WOODCREEK SECTION 10-A AND 10-8 Elhl~ ~ TopofRoad ~ELho t HW1 7-2 + D - - - - - - --~ H J--t.____ TW Ell ProposedCulvert-:._;::.-- - - --:'\..._ Outfall Channel Deal n Criteria Invert Outlet Culvert Top LL Side Rl Side Bottom Elev. (EU) El&i. (Elo) Length Slope of Slope Slope Slope Width n (ft.) (fl) (fl) (Ml) Road ke I ?:1 ?:1 fl 276.15 275.06 96.25 0.0113 279 .30 0 .50 I 0.0100 4 .00 4 .00 0.00 0.025 HEADWATER CALCULATIONS Control Type INLET CONTROL HWVO HWI EUii 1.01 1.52 277.67 1.09 1.63 277.78 1.19 1.79 277 .94 1.32 1.97 278 .12 1.47 2 .20 278.35 H • [1 +ke+((29.(n"2)"l)(R'1 .33)]•((v'2)12g ) Elho = ELo + H + ho TW 0.73 0.77 0.81 0.85 0.89 OUTLET CONTROL de (de+ Dl/2 ho 1.05 1.28 1.28 1.10 1.30 1.30 1.15 1.33 1.33 1.20 1.35 1.35 1.25 1.38 1.38 HW of H Elho Elev. Control o.n 2n.11 277 .67 Inlet 0.98 277.34 2n .18 Inlet 1.28 277.66 277 .94 Inlet 1.83 278.04 278 .12 Inlet 2.06 278 .50 278 .50 Outlet Outlet Velocity lb\ 8.25 6 .41 8.56 8 .67 6 .90 Elo Freeboard (fl) 1.83 1.52 1.36 1.18 0.80 9121/98 9731-cul2.xfs Exhibit C-4 DA# DA# D.A.# --K fil I! z ~ ! ~ ~ ~ !!! Qp 2.3 7.6 Tc 5.0 5.0 Inc 0.5 TH118 cfs cfs 0.0 0.0 0.0 0.0 0.5 0.2 0.8 1.0 1.0 0.5 1.5 2.0 1.5 0.7 2.3 3.0 2.0 0.9 3.0 3.9 2.5 1.1 3.8 4.9 3.0 1.4 4.6 5.9 3.5 1.6 5.3 6.9 4.0 1.8 6.1 7.9 4.5 2.0 6.8 8.9 5.0 2.3 7.6 9.9 5.5 2.2 7.2 9.4 6.0 2.0 6.8 8.9 6.5 1.9 6.5 8.4 7.0 1.8 6.1 7.9 7.5 1.7 5.7 7.4 8.0 1.6 5.3 6.9 8.5 1.5 4.9 6.4 9.0 1.4 4.6 5.9 9.5 1.3 4.2 5.4 10.0 1.1 3.8 4.9 10.5 1.0 3.4 .u 11.0 0.9 3.0 3.9 11.5 0.8 2.7 3.5 12.0 0.7 2.3 3.0 12.5 0.6 1.9 2.5 13.0 0.5 1.5 2.0 13.5 0.3 1.1 1.5 14.0 02 0.8 1.0 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 o.o 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 2 8 10 0.00 indicat9s initaf condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 11 Pond Routing EVENT• 5 g c I l! ~ .... + + .... ~· c ~ c + ~! :ll & cfs cfs cfs cfs ft 0.99 0.00 0.00 0.00 294.7 2.96 0.00 0.99 0.87 294.8 4.93 0.00 2.96 2.58 295.0 6.91 0.00 4.93 2.79 295.1 8.88 0.88 6.91 3.01 295.1 10.85 3.11 9.76 3.33 295.3 12.83 6.39 13.97 3.79 295.4 14.80 10.94 19.22 4.14 295.5 16.77 17.04 25.74 4.35 295.6 18.75 24.59 33.81 4.61 295.8 19.24 33.49 43.33 4.92 295.9 18.25 42.39 52.73 5.17 296.0 17.27 50.01 60.64 5.31 296.1 16.28 56.41 67.28 5.43 296.2 15.29 61.63 72.69 5.53 296.3 14.31 65.72 76.93 5.60 296.3 13.32 68.70 80.02 5.66 296.3 12.33 70.63 82.02 5.70 296.4 11.35 71.54 82.96 5.71 296.4 10.38 71.46 82.88 5.71 296.4 9.37 70.44 81.82 5.69 296.4 8.39 68.50 79.81 5.66 296.3 7.40 65.67 76.86 5.60 296.3 6.41 62.00 73.07 5.54 296.3 5.43 57.51 68.41 5.45 296.2 4.44 52.23 62.94 5.35 296.2 3.45 46.18 56.67 5.24 296.1 2.47 39.40 49.63 5.12 296.0 1.48 32.12 41.86 4.87 295.9 0.49 24.39 33.60 4.61 295.8 0.00 16.24 24.88 4.32 295.6 0.00 8.16 16.24 4.04 295.5 0.00 1.86 8.16 3.15 2952 0.00 0.00 1.86 1.64 294.9 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.4 DA# Q w ~g .... ~ l e IE 36.0 11.7 cfs cfs 0.0 0.00 1.5 2.40 3.1 5.64 4.6 7.39 6.1 9.14 7.7 10.98 9.2 12.98 10.7 14.86 12.3 16.61 13.8 18.40 15.3 20.24 16.9 22.02 18.4 23.70 19.9 25.35 21.4 26.98 23.0 28.58 24.5 30.17 26.0 31.74 27.6 33.29 29.1 34.82 30.6 36.33 32.2 37.83 33.7 39.31 35.2 40.77 35.6 41.04 34.8 40.17 34.1 39.30 33.3 38.40 32.5 37.39 31.8 36.36 31.0 35.31 30.2 34.26 29.5 32.61 28.7 30.33 27.9 27.93 27.2 27.16 26.4 26.39 25.6 25.63 24.9 24.86 24.1 24.10 23.3 23.33 22.6 22.56 21.8 21.80 21.0 21.03 20.3 20.27 19.5 19.50 18.7 18.73 18.0 17.97 17.2 17.20 16.4 16.44 15.7 15.67 36 41 D.A.# ~! 't: .. ... s ~ e 40.8 11.7 cfs cfs 0.0 0.00 1.7 1.74 3.5 3.48 5.2 5.22 7.0 6.95 8.7 8.69 10.4 10.43 12.2 12.17 13.9 13.91 15.6 15.65 17.4 17.39 19.1 19.13 20.9 20.86 22.6 22.60 24.3 24.34 26.1 26.08 27.8 27.82 29.6 29.56 31.3 31.30 33.0 33.03 34.8 34.77 36.5 38.51 38.3 3825 40.0 39.99 40.4 40.39 39.5 39.52 38.6 38.65 37.8 37.78 36.9 36.91 36.0 36.04 35.2 35.17 34.3 34.30 33.4 33.43 32.6 32.56 31.7 31.69 30.8 30.83 30.0 29.96 29.1 29.09 28.2 28.22 27.3 27.35 26.5 26.48 25.6 25.61 24.7 24.74 23.9 23.87 23.0 23.00 22.1 22.13 21.3 21.26 20.4 20.39 19.5 19.52 18.7 18.65 17.8 17.79 40 40 9731pnd1.lds Exhibit 0-1 DA# DA# D.A.# "" -&. a t! w z ~ iii "CJ :2: ~ ~ ~ 8 lao 2.5 8.5 Tc 5.0 li.O Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 0.8 1.1 1.0 0.5 1.7 2.2 1.5 0.8 2.5 3.3 2.0 1.0 3.4 4.4 2.5 1.3 4.2 5.5 3.0 1.5 5.1 6.6 3.5 1.8 5.9 7.7 4.0 2.0 6.8 8.8 4.5 2.3 7.6 9.9 5.0 2.5 8.5 11.0 5.5 2.4 8.0 10.4 6.0 2.3 7.6 9.9 6.5 2.2 7.2 9.3 7.0 2.0 6.8 8.8 7.5 1.9 6.3 8.2 8.0 1.8 5.9 7.7 8.5 1.6 5.5 7.1 9.0 1.5 5.1 6.6 9.5 1.4 4.7 6.0 10.0 1.3 4.2 5.5 10.5 1.1 3.8 4.9 11.0 1.0 3.4 4.4 11.5 0.9 3.0 3.8 12.0 0.8 2.5 3.3 12.5 0.6 2.1 2.7 13.0 0.5 1.7 2.2 13.5 0.4 1.3 1.6 14.0 0.3 0.8 1.1 14.5 0.1 0.4 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 . 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 8 11 0.00 indicates inital conditiOri EXHIBIT "D-1" PROPOSED DETENtlON POND ROUTING -wooocREEK DETENTION FACILITY #1 Pond Routina EVENT• 10 ~ c ~ :!2 + ~ t .... "CJ "' .5 l! & c > + le ~ if ~ c cfs cfs cfs cfs ft 1.10 0.00 0.00 0.00 294.7 3.30 0.00 1.10 0.97 294.8 5.50 0.00 3.30 2.61 295.0 7.70 0.00 5.50 2.86 295.1 9.90 1.50 7.70 3.10 295.2 12.10 4.39 11.40 3.51 295.3 14.30 8.39 18.49 4.05 295.5 16.50 14.18 22.68 4.25 295.6 18.70 21.66 30.68 4.51 295.7 20.90 30.70 40.35 4.82 295.9 21.45 41.30 51.60 5.15 296.0 20.35 52.04 62.74 5.35 296.1 19.25 61.34 72.38 5.52 296.3 18.15 69.24 80.58 5.67 296.3 17.05 75.80 87.39 5.79 296.4 15.95 81.07 92.85 5.89 296.5 14.85 85.09 97.02 5.96 296.5 13.75 87.90 99.94 6.02 296.6 12.65 89.56 101.65 6.05 296.6 11.55 90.09 102.21 6.06 296.6 10.45 89.55 101.64 6.05 296.6 9.35 87.96 100.00 6.02 296.6 8.25 85.37 97.31 5.97 296.5 7.15 81.81 93.62 5.90 296.5 6.05 77.32 88.96 5.82 296.4 4.95 71.93 83.37 5.72 296.4 3.85 65.67 76.88 5.60 296.3 2.75 58.58 69.52 5.47 296.2 1.65 50.67 61.32 5.33 296.1 0.55 41.99 52.32 5.17 296.0 0.00 32.75 42.54 4.90 295.9 0.00 23.60 32.75 4.58 295.8 <. 0.00 15.03 23.60 4.28 295.6 0.00 7.22 15.03 3.90 295.5 0.00 1.13 7.22 3.05 295.2 0.00 0.00 1.13 1.00 294.8 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 6 296.6 DA# fil ,,, Q. -I ~ 0 ~o Ir. g IE 40.5 11.7 cfs cfs 0.0 0.00 1.7 2.69 3.4 6.06 5.2 8.02 6.9 9.99 8.6 12.12 10.3 14.39 12.1 16.31 13.8 18.29 15.5 20.33 17.2 22.38 19.0 24.30 20.7 26.20 22.4 28.07 24.1 29.91 25.8 31.73 27.6 33.53 29.3 35.30 31.0 37.06 32.7 38.79 34.5 40.50 36.2 42.20 37.9 43.87 39.6 45.53 40.0 45.84 39.2 44.88 38.3 43.90 37.4 42.91 36.6 41.90 35.7 40.88 34.9 39.75 34.0 38.57 33.1 37.41 32.3 36.17 31.4 34.45 30.5 31.54 29.7 29.68 28.8 ·. 28.82 28.0 27.96 27.1 27.10 26.2 26.24 25.4 25.38 24.5 24.52 23.7 23.65 22.8 22.79 21.9 21.93 21.1 21.07 20.2 20.21 19.3 19.35 18.5 18.49 17.6 17.62 40 46 DA# 0 -I ~ l:: ~~ • ~ g~ 45.9 11.7 cfs cfs 0.0 0.00 2.0 1.96 3.9 3.91 5.9 5.87 7.8 7.82 9.8 9.78 11.7 11.73 13.7 13.69 15.6 15.64 17.6 17.60 19.6 19.55 21.5 21.51 23.5 23.46 25.4 25.42 27.4 27.38 29.3 29.33 31.3 31.29 33.2 33.24 35.2 35.20 37.2 37.15 39.1 39.11 41.1 41.06 43.0 43.02 45.0 44.97 45.4 45.42 44.4 44.44 43.5 43.47 42.5 42.49 41.5 41.51 40.5 40.53 39.6 39.56 38.6 38.58 37.6 37.60 36.6 36.62 35.6 35.65 34.7 34.67 33'.7 33.69 32.7 32.71 31.7 31.73 30.8 30.76 29.8 29.78 28.8 28.80 27.8 27.82 26.8 26.85 25.9 25.87 24.9 24.89 23.9 23.91 22.9 22.94 22.0 21.96 21.0 20.98 20.0 20.00 45 45 9731pnd1.xls Eldlibit D-1 D.A.# D.A.# D.A.# 'II: .&: fa Q. I! I ~ ID 8 ~ ~ Qp 2.9 9.6 Tc 5.0 5.0 inc 0.5 Time cfs eta 0.0 0.0 0.0 0.0 0.5 0.3 1.0 1.3 1.0 0.6 1.9 2.5 1.5 0.9 2.9 3.8 2.0 1.2 3.9 5.0 2.5 1.4 4.8 6.3 3.0 1.7 5.8 7.5 3.5 2.0 6.7 8.8 4.0 2.3 7.7 10.0 4.5 2.6 8.7 11.3 5.0 2.9 9.6 12.5 5.5 2.7 9.2 11.9 6.0 2.6 8.7 11.3 6.5 2.5 8.2 10.6 7.0 2.3 7.7 10.0 7.5 2.2 7.2 9.4 8.0 2.0 6.7 8.8 8.5 1.9 6.3 8.1 9.0 1.7 5.8 7.5 9.5 1.6 5.3 6.9 10.0 1.4 4.8 6.3 10.5 1.3 4.3 5.6 11.0 1.2 3.9 5.0 11.5 1.0 3.4 4.4 12.0 0.9 2.9 3.8 12.5 0.7 2.4 3.1 13.0 0.6 1.9 2.5 13.5 0.4 1.4 1.9 14.0 0.3 1.0 1.3 14.5 0.1 0.5 0.6 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 10 13 o.bo indicates inltal condition EXHIBIT "0-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACRJTY 11 Pond Routing EVENT• 25 c ~ c + § l! ~ ..... c l! + ..... 'g !: ~ c & ~ ~ ~ i1l cfs cfs cfs cfs ft 1.25 0.00 0.00 0.00 294.7 3.76 0.00 1.25 1.10 294.8 6.26 0.00 3.76 2.66 295.0 8.77 0.38 6.26 2.94 295.1 11.27 2.63 9.15 3.26 295.2 13.78 6.34 13.91 3.78 295.4 16.28 11.79 20.12 4.17 295.6 18.79 19.22 28.07 4.43 295.7 21.29 28.51 38.00 4.75 295.8 23.80 39.56 49.80 5.12 296.0 24.42 52.63 63.36 5.36 296.2 23.17 65.84 77.05 5.61 296.3 21.92 77.37 89.01 5.82 296.4 20.67 87.28 99.29 6.00 296.5 19.41 95.63 107.95 6.16 296.6 18.16 102.47 115.04 6.29 296.7 16.91 107.86 120.63 6.39 296.8 15.66 111.85 124.77 6.48 296.8 14.40 114.49 127.50 6.51 296.9 13.15 115.82 128.89 6.53 296.9 11.90 115.91 128.98 6.53 296.9 10.65 114.76 127.80 6.51 296.9 9.39 112.48 125.42 6.47 296.8 8.14 109.06 121.87 6.41 296.8 6.89 104.55 117.20 6.32 296.7 5.64 99.00 111.44 6.22 296.7 4.38 92.43 104.63 6.10 296.6 3.13 84.90 96.82 5.96 296.5 1.88 76.42 88.03 5.80 296.4 0.63 67.04 78.30 5.63 296.3 0.00 56.79 67.67 5.44 296.2 0.00 46.30 56.79 5.25 296.1 0.00 36.26 48.30 5.02 296.0 0.00 26.88 36.26 4.69 295.8 0.00 18.11 26.88 4.39 295.7 0.00 9.90 18.11 4.10 295.5 0.00 3.22 9.90 3.34 295.3 0.00 0.00 3.22 2.61 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 7 296.9 D.A.# liJ ~~ a. i5 0 0 Ii 2f 48.3 11.7 eta eta 0.0 0.00 2.0 3.07 3.9 6.60 5.9 8.85 7.9 11.13 9.8 13.63 11.8 15.96 13.8 18.21 15.8 20.50 17.7 22.84 19.7 25.05 21.7 27.27 23.6 29.45 25.6 31.60 27.6 33.73 29.5 35.82 31.5 37.89 33.5 39.94 35.4 41.96 37.4 43.95 39.4 45.92 41.4 47.87 43.3 49.79 45.3 51.70 45.7 52.07 44.8 50.98 43.8 49.88 42.8 48.75 41.8 47.61 40.8 48.45 39.8 45.28 38.9 44.10 37.9 42.88 36.9 41.57 35.9 40.29 34.9 39.02 33.9 37.27 32.9 35.55 32.0 31.96 31.0 30.98 30.0 29.99 29.0 29.01 28.0 28.02 27.0 27.04 26.1 26.05 25.1 25.07 24.1 24.08 23.1 23.10 22.1 22.11 21.1 21.13 20.1 20.14 46 52 D.A.# 0 ~ 3; t: i5 t; .. ~ e~ 52.5 11.7 cfs cfs 0.0 0.00 2.2 2.24 4.5 4.47 6.7 6.71 8.9 8.94 11.2 11.18 13.4 13.41 15.6 15.65 17.9 17.88 20.1 20.12 22.4 22.35 24.6 24.59 26.8 26.82 29.1 29.06 31.3 31.29 33.5 33.53 35.8 35.76 38.0 38.00 40.2 40.23 42.5 42.47 44.7 44.70 46.9 46.94 49.2 49.17 51.4 51.41 51.9 51.92 50.8 50.80 49.7 49.68 48.6 48.57 47.4 47.45 46.3 46.33 45.2 45.21 44.1 44.10 43.0 42.98 41.9 41.86 40.7 40.74 39.6 39.63 38.5 38.51 37.4 37.39 36.3 36.27 35.2 35.16 34.0 34.04 32.9 32.92 31.8 31.80 30.7 30.69 29.6 29.57 28.5 28.45 27.3 27.33 26.2 26.22 25.1 25.10 24.0 23.98 22.9 22.86 52 52 9731pnd1.xls Exhibit D-1 D.A.# D.A.# D.A.# .., -&. a w .. .. f; ~ m == ,, ~ ~ m 8 (') IOo 3.3 10.9 Tc 5.0 5.0 Inc 0.5 Time cf's cf's 0.0 0.0 0.0 0.0 0.5 0.3 1.1 1.4 1.0 0.7 2.2 2.8 1.5 1.0 3.3 4.2 2.0 1.3 4.3 5.6 2.5 1.6 5.4 7.1 3.0 2.0 6.5 8.5 3.5 2.3 7.6 9.9 4.0 2.6 8.7 11.3 4.5 2.9 9.8 12.7 5.0 3.3 10.9 14.1 5.5 3.1 10.3 13.4 6.0 2.9 9.8 12.7 6.5 2.8 9.2 12.0 7.0 2.6 8.7 11.3 7.5 2.4 8.1 10.6 8.0 2.3 7.6 9.9 8.5 2.1 7.1 9.2 9.0 2.0 6.5 8.5 9.5 1.8 6.0 7.8 10.0 1.6 5.4 7.1 10.5 1.5 4.9 6.4 11.0 1.3 4.3 5.6 11.5 1.1 3.8 4.9 12.0 1.0 3.3 4.2 12.5 0.8 2.7 3.5 13.0 0.7 2.2 2.8 13.5 0.5 1.6 2.1 14.0 0.3 1.1 1.4 14.5 0.2 0.5 0.7 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 2-t.O 0.0 0.0 0.0 24.5 0.0 0.0 0.0 25.0 0.0 0.0 0.0 PEAK FLOWS 3 11 1-t 0.00 indicates inital condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING -WOODCREEK DETENTION FACILITY 11 Pond Routlna EVENT• 50 g ~ I .... :e + ..... c :e + i + c iw ~ ~ c cfs cfs cf's cfs ft 1.41 0.00 0.00 0.00 294.7 4.24 0.00 1.41 1.24 294.8 7.06 0.00 4.24 2.72 295.0 9.88 1.00 7.06 3.03 295.2 12.71 3.99 10.89 3.45 295.3 15.53 8.58 16.70 4.06 295.5 18.35 15.52 24.11 4.30 295.6 21.18 24.64 33.87 4.61 295.8 24.00 35.82 45.82 5.00 296.0 26.82 49.22 59.82 5.30 296.1 27.53 64.87 76.04 5.59 296.3 26.12 80.63 92.40 5.88 296.5 24.71 94.48 106.76 6.14 296.6 23.29 106.46 119.18 6.36 296.8 21.88 116.66 129.76 6.55 296.9 20.47 125.13 138.54 6.71 297.0 19.06 130.33 145.60 7.64 297.0 17.65 132.66 149.39 8.36 297.1 16.24 133.22 150.31 8.54 297.1 14.82 132.70 149.46 8.38 297.1 13.41 131.51 147.53 8.01 297.0 12.00 129.91 144.92 7.51 297.0 10.59 128.05 141.91 6.93 297.0 9.18 125.22 138.64 6.71 297.0 7.76 121.14 134.40 6.63 296.9 6.35 115.84 128.90 6.53 296.9 4.94 109.36 122.19 6.41 296.8 3.53 101.76 114.30 6.27 296.7 2.12 93.06 105.29 6.11 296.6 0.71 83.32 95.18 5.93 296.5 0.00 72.56 84.03 5.73 296.4 0.00 61.51 72.56 5.53 296.3 '· 0.00 50.85 61.51 5.33 296.1 0.00 40.57 50.85 5.1-t 296.0 0.00 30.91 -t0.57 4.83 295.9 0.00 21.87 30.91 -t.52 295.7 0.00 13.42 21.87 4.22 295.6 0.00 5.97 13.42 3.73 295.-t 0.00 0.15 5.97 2.91 295.1 0.00 0.00 0.15 0.13 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 9 297.1 D.A.# a w Ill ;f! ~ 0.. ... f 0 0:. e 52.3 11.7 cfs cfs 0.0 0.00 2.2 3.47 4.5 7.17 6.7 9.71 8.9 12.36 11.1 15.20 13.4 17.66 15.6 20.21 17.8 22.82 20.1 25.35 22.3 27.87 24.5 30.39 26.7 32.87 29.0 35.32 31.2 37.74 33.4 40.12 35.6 43.28 37.9 46.24 40.1 48.64 42.3 50.71 44.6 52.57 46.8 54.29 49.0 55.94 51.2 57.95 51.8 58.38 50.6 57.17 49.5 55.94 48.4 54.68 47.3 53.41 46.2 52.11 45.1 50.80 44.0 49.48 42.8 48.17 41.7 -t6.87 40.6 45.44 39.5 44.02 38.4 42.61 37.3 41.00 36.2 39.07 35.0 35.18 33.9 33.93 32.8 32.82 31.7 31.70 30.6 30.59 29.5 29.47 28.-t 28.36 27.2 27.25 26.1 26.13 25.0 25.02 23.9 23.90 22.8 22.79 52 58 D.A.# 0 -' ~ 's:: < ... .!! g~ ~ 59.4 11.7 cfs cfs 0.0 0.00 2.5 2.53 5.1 5.06 7.6 7.59 10.1 10.11 12.6 12.64 15.2 15.17 17.7 17.70 20.2 20.23 22.8 22.76 25.3 25.29 27.8 27.81 30.3 30.34 32.9 32.87 35.4 35.40 37.9 37.93 40.5 40.46 43.0 42.99 45.5 45.51 48.0 48.04 50.6 50.57 53.1 53.10 55.6 55.63 58.2 58.16 58.7 58.74 57.5 57.47 56.2 56.21 54.9 54.95 53.7 53.68 52.4 52.42 51.2 51.15 49.9 49.89 48.6 48.62 47.4 47.36 46.1 -t6.10 44.8 44.83 43'.6 43.57 42.3 42.30 41.0 -t1.04 39.8 39.77 38.5 38.51 37.2 37.24 36.0 35.98 34.7 34.72 33.5 33.45 32.2 32.19 30.9 30.92 29.7 29.66 28.4 28.39 27.1 27.13 25.9 25.87 59 69 9731pnd1.xls EmibitD-1 D.A.# D.A.# D.A.# 'II: .&. 0 a. w :! ~ 3:: ID 8 ~ ~ ~ IQD 3.6 12.2 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.4 1.2 1.6 1.0 0.7 2.4 3.2 1.5 1.1 3.6 4.7 2.0 1.5 4.9 6.3 2.5 1.8 6.1 7.9 3.0 2.2 7.3 9.5 3.5 2.6 8.5 11.1 4.0 2.9 9.7 12.6 4.5 3.3 10.9 14.2 5.0 3.6 12.2 15.8 5.5 3.5 11.6 15.0 6.0 3.3 10.9 14.2 6.5 3.1 10.3 13.4 7.0 2.9 9.7 12.6 7.5 2.7 9.1 11.9 8.0 2.6 8.5 11.1 8.5 2.4 7.9 10.3 9.0 2.2 7.3 9.5 9.5 2.0 6.7 8.7 10.0 1.8 6.1 7.9 10.5 1.6 5.5 7.1 11.0 1.5 4.9 6.3 11.5 1.3 4.3 5.5 12.0 1.1 3.6 4.7 12.5 0.9 3.0 4.0 13.0 0.7 2.4 3.2 13.5 0.5 1.8 2.4 14.0 0.4 1.2 1.6 14.5 0.2 0.6 0.8 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 9.0 0.0 25.0 0.0 0.0 0.0 PEAK FLOWS 4 12 16 0.00 indicates inltal condition EXHIBIT "D-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY '1 Pond Routina EVENT• 100 ~ c t i ~ 0 ... ~ ~ & i ! + £: ~ ~ iii cfs cfs cfs cfs ft 1.58 0.00 0.00 0.00 294.7 4.74 0.00 1.58 1.39 294.8 7.90 0.00 4.74 2.77 295.1 11.06 1.66 7.90 3.12 295.2 14.22 5.42 12.72 3.65 295.4 17.38 11.34 19.65 4.15 295.6 20.55 19.83 28.73 4.45 295.7 23.71 30.73 40.38 4.83 295.9 26.87 44.03 54.43 5.20 296.1 30.03 59.90 70.89 5.50 296.2 30.82 78.25 89.93 5.84 296.4 29.24 96.71 109.07 6.18 296.7 27.66 112.99 125.95 6.48 296.8 26.08 127.16 140.65 6.74 297.0 24.50 135.03 153.24 9.10 297.1 22.92 138.90 159.53 10.31 297.1 21.34 140.32 161.82 10.75 297.1 19.76 140.21 161.65 10.72 297.1 18.17 139.18 159.97 10.40 297.1 16.59 137.56 157.35 9.89 297.1 15.01 135.60 154.16 9.28 297.1 13.43 133.41 150.61 8.60 297.1 11.85 131.09 146.84 7.88 297.0 10.27 128.69 142.94 7.13 297.0 8.69 125.54 138.96 6.71 297.0 7.11 120.97 134.23 6.63 296.9 5.53 115.04 128.08 6.52 296.9 3.95 107.81 120.58 6.38 296.8 2.37 99.30 111.76 6.23 296.7 0.79 89.58 101.67 6.05 296.6 0.00 78.68 90.37 5.85 296.4 0.00 67.41 78.68 5.64 296.3 0.00 56.54 67.41 5.43 296.2 0.00 46.06 56.54 5.24 296.1 0.00 36.04 46.06 5.01 296.0 0.00 26.67 36.04 4.68 295.8 0.00 17.91 26.67 4.38 295.7 0.00 9.72 17.91 4.10 295.5 0.00 3.08 9.72 3.32 295.3 0.00 0.00 3.08 2.59 295.0 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 0.00 0.00 0.00 0.00 294.7 11 297.1 D.A.# 0 w .J ~ l ~o gg: 58.9 11.7 cfs chi 0.0 0.00 2.5 3.90 5.0 7.79 7.5 10.64 10.0 13.68 12.5 16.68 15.0 19.48 17.5 22.37 20.0 25.25 22.6 28.05 25.1 30.90 27.6 33.75 30.1 36.55 32.6 39.32 35.1 44.19 37.6 47.90 40.1 50.85 42.6 53.32 45.1 55.51 47.6 57.51 50.1 59.40 52.6 61.23 55.1 63.01 57.6 64.77 58.2 64.93 57.0 63.59 55.7 62.23 54.5 60.84 53.2 59.43 52.0 58.00 50.7 56.54 49.4 55.08 48.2 53.63 46.9 52.18 45.7 50.69 44.4 49.12 43.2 47.56 41.9 46.02 40.7 43.99 39.4 42.01 38.2 38.17 36.9 36.91 35.7 35.66 34.4 34.41 33.2 33.15 31.9 31.90 30.6 30.65 29.4 29.40 28.1 28.14 26.9 26.89 25.6 25.64 58 65 D.A.# Cl .J ~ r; c( .... .!! I-!!? in g~ 66.8 11.7 cfs cfs 0.0 0.00 2.8 2.84 5.7 5.69 8.5 8.53 11.4 11.38 14.2 14.22 17.1 17.07 19.9 19.91 22.8 22.75 25.6 25.60 28.4 28.44 31.3 31.29 34.1 34.13 37.0 36.98 39.8 39.82 42.7 42.67 45.5 45.51 48.4 48.35 51.2 51.20 54.0 54.04 56.9 56.89 59.7 59.73 62.6 62.58 65.4 65.42 66.1 66.07 64.7 64.65 63.2 63.23 61.8 61.81 60.4 60.38 59.0 58.96 57.5 57.54 56.1 56.12 54.7 54.70 53.3 53.27 51.9 51.85 50.4 50.43 49.0 49.01 47.6 47.58 46.2 46.16 44.7 44.74 43.3 43.32 41.9 41.90 40.5 40.47 39.1 39.05 37.6 37.63 36.2 36.21 34.8 34.79 33.4 33.36 31.9 31.94 30.5 30.52 29.1 29.10 66 66 9731pnd1.xls ExhibltD-1 ~ a WOODCREEK DETENTION FACILITY #1 5 Year Event Hydrograph Pond 45 .00 --------------------------------------. 40 .00 35.00 - 30 .00 25.00 20 .00 15 .00 10.00 5.00 0 .00 ~~~===========:::::==~~~~-~~---+--_J 0.00 2 .00 4 .00 6 .00 8.00 10.00 Tlme(mln.) 12 .00 14 .00 16 .00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 50 .00 45 .00 40 .00 35 .00 30 .00 !" a 25 .oo G 20 .00 15 .00 10.00 5.00 0 .00 0 .00 2.00 4 .00 6 .00 WOODCREEK DETENTION FACILITY #1 10 Year Event Hydrograph Pond 8 .00 10.00 Time(mln.) 12 .00 14.00 16 .00 18 .00 20.00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 WOODCREEK DETENTION FACILITY #1 25 Year Event Hydrograph Pond 50.00 40.00 ~ .a 30.00 0 20 .00 10.00 0 .00 ~~~===============~~~~---1---_:_:__J 0.00 2 .00 4 .00 6 .00 8 .00 10.00 Tlme(mln.) 12.00 14.00 16.00 18.00 20.00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 a WOODCREEK DETENTION FACILITY #1 50 Year Event Hydrograph Pond 60.00 50 .00 40.00 30.00 20.00 10.00 0 .00 ~~~=================;;~~::::::::....--1-----4--_J 0 .00 2 .00 4 .00 6 .00 8 .00 10.00 Tlme(mln.) 12.00 14.00 16 .00 18.00 20.00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 ~ ..2. a WOODCREEK DETENTION FACILITY #1 100 Year Event Hydrograph Pond 50.00 40.00 30.00 20.00 10.00 0 .00 ~~~===========:::::==~;;;;~......._---+--------1--_J 0 .00 2 .00 4 .00 6.00 8.00 10.00 Time(min.) 12.00 14 .00 16.00 18.00 20 .00 --3A --38 --COMBINED --Qn+1 --Prop1 --TOTAL PROPOSED - - -Exist1 9/29/98 Exhibit D-2 0 .090 0 .080 0.070 0 .060 ~ ftl f 0 .050 u; 0.040 0.030 0 .020 0 .010 WOODCREEK DETENTION FACILITY #1 Stage-Storage Curve 0 .000+-~~~~-t-~..-~~-+-=-~~~-+~~~~--+~~~~~1--~~~~+-~~~~-1-~~~~-+-~~~~~ 294 294.5 295 295.5 296 296.5 297 297.5 298 298.5 Elevation (msl) Exhibit D-3 i t 25 .000 ~ 0 WOODCREEK DETENTION FACILITY #1 Stage-Discharge Curve 0 .000 +--------4---='----1------+------1-------1---------1-------1------1-----~ 294 .0 294 .5 295.0 295 .5 296.0 296 .5 297.0 297 .5 298.0 298 .5 Elevation (msl) Exhibit 0-3 D.A.# D.A.# D.A.# "" .c a 0. w ~ z iii 8 "O ~ :$ ~ 'Co 3.2 3.6 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.3 0.4 0.7 1.0 0.6 0.7 1.4 1.5 1.0 1.1 2.0 2.0 1.3 1.5 2.7 2.5 1.6 1.8 3.'4 3.0 1.9 2.2 '4.1 3.5 2.2 2.5 4.8 4.0 2.6 2.9 5.5 '4.5 2.9 3.3 6.1 5.0 3.2 3.6 6.8 5.5 3.0 3.4 6.5 6.0 2.9 3.3 6.1 6.5 2.7 3.1 5.8 7.0 2.6 2.9 5.5 7.5 2.4 2.7 5.1 8.0 2.2 2.5 4.8 6.5 2.1 2.4 4.4 9.0 1.9 2.2 4.1 9.5 1.8 2.0 3.6 10.0 1.6 1.8 3.4 10.5 1.4 1.6 3.1 11.0 1.3 1.5 2.7 11.5 1.1 1.3 2.4 12.0 1.0 1.1 2.0 12.5 0.8 0.9 1.7 13.0 0.6 0.7 1.4 13.5 0.5 0.5 1.0 14.0 0.3 0.4 0.7 14.5 0.2 0.2 0.3 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 3 4 7 0.00 indicates inital condition EXHIBIT '"E-1· PROPOSED DETENTION POND ROUTING ·WOODCREEK DETENTION FACILITY 12 Pond Routlna EVENT• 5 g c .... 2 ::!;! 0 ! .... ;> + .... "O • l! c & c > + ~ ~ ~~ c cfs cfs cfs cfs ft 0.68 0.00 0.00 0.00 289.5 2.05 0.00 0.68 0.57 289.6 3.41 0.00 2.05 1.70 289.7 4.78 0.00 3.41 2.84 289.8 6.14 0.00 4.78 3.97 289.9 7.51 0.00 6.14 '4.81 290.0 8.88 0.00 7.51 '4.92 290.0 10.24 0.00 8.88 5.03 290.1 11.61 0.00 10.24 5.13 290.1 12.97 1.12 11.61 5.2'4 290.1 13.31 3.21 14.09 5.44 290.2 12.63 5.26 16.52 5.63 290.2 11.95 6AO 17.89 5.7'4 290.2 11.26 6.79 18.35 5.78 290.2 10.58 6.54 18.06 5.76 290.2 9.90 5.76 17.13 5.68 290.2 9.22 4.53 15.66 5.57 290.2 8.53 2.92 13.75 5.41 290.2 7.85 1.00 11.46 5.23 290.1 7.17 0.00 8.85 5.02 290.1 6.'49 0.00 7.17 '4.89 290.0 5.80 0.00 6.49 4.83 290.0 5.12 0.00 5.80 4.78 290.0 '4.44 0.00 5.12 4.26 289.9 3.75 0.00 4.44 3.69 289.9 3.07 0.00 3.75 3.12 289.8 2.39 0.00 3.07 2.55 289.8 1.71 0.00 2.39 1.99 289.7 1.02 0.00 1.71 1.42 289.7 0.34 0.00 1.02 0.85 289.6 0.00 0.00 0.34 0.28 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 6 290.2 D.A.# a w fl) 0 .J ~ w N l ~o§ gf Ii'. 52.4 14.1 cfs cfs 0.0 0.00 1.9 2.42 3.7 5.'42 5.6 8.41 7.'4 11.40 9.3 14.09 11.1 16.06 13.0 18.02 14.9 19.99 16.7 21.96 18.6 24.01 20.4 26.06 22.3 28.03 24.1 29.92 26.0 31.75 27.9 33.54 29.7 35.28 31.6 36.98 33.'4 38.66 35.3 40.31 37.1 42.03 39.0 43.83 40.9 45.64 42.7 46.97 «.6 48.26 46.4 '49.55 48.3 50.84 50.1 52.13 52.0 53.'42 51.6 52.49 50.7 51.00 '· 49.8 49.79 48.9 48.86 47.9 47.93 47.0 47.00 46.1 46.07 45.1 45.14 44.2 44.21 43.3 43.29 42.4 42.36 41.4 41.43 40.5 40.50 39.6 39.57 38.6 38.64 37.7 37.72 36.8 36.79 35.9 35.86 34.9 34.93 34.0 34.00 33.1 33.07 32.1 32.14 52 53 D.A.# .J ~ tf 4( fl) • ... _ ~ g~ 54.6 14.1 cfs cfs 0.0 0.00 1.9 1.94 3.9 3.87 5.8 5.81 7.7 7.74 9.7 9.68 11.6 11.62 13.6 13.55 15.5 15.'49 17.4 17.'42 19.4 19.36 21.3 21.30 23.2 23.23 25.2 25.17 27.1 27.11 29.0 29.04 31.0 30.98 32.9 32.91 34.8 34.85 36.8 36.79 38.7 38.72 '40.7 40.66 42.6 42.59 44.5 44.53 46.5 46.47 48.4 48.40 50.3 50.34 52.3 52.27 54.2 54.21 53.8 53.84 52.9 52.87 51.9 51.90 50.9 50.94 50.0 49.97 49.0 49.00 48.0 48.03 47.1 47.06 46.1 46.10 45.1 45.13 44.2 44.16 43.2 43.19 42.2 42.22 41.3 41.26 40.3 40.29 39.3 39.32 38.4 38.35 37.4 37.38 36.4 36.42 35.4 35.45 34.5 34.48 33.5 33.51 54 54 9731 pnd2.xls Elctiibit E-1 DA# D.A.# DA# -a 0 w I! z ~ iii ~ 8 s e Qp 3.6 4.0 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.4 0.4 0.8 1.0 0.7 0.8 1.5 1.5 1.1 1.2 2.3 2.0 1.4 1.6 3.0 2.5 1.8 2.0 3.8 3.0 2.1 2.4 4.6 3.5 2.5 2.8 5.3 4.0 2.9 3.2 6.1 4.5 3.2 3.6 6.8 5.0 3.6 4.0 7.6 5.5 3.4 3.8 7.2 6.0 3.2 3.6 6.8 6.5 3.0 3.4 6.5 7.0 2.9 3.2 6.1 7.5 2.7 3.0 5.7 8.0 2.5 2.8 5.3 8.5 2.3 2.6 4.9 9.0 2.1 2.4 4.6 9.5 2.0 2.2 4.2 10.0 1.8 2.0 3.8 10.5 1.6 1.8 3.4 11.0 1.4 1.6 3.0 11.5 1.2 1.4 2.7 12.0 1.1 1.2 2.3 12.5 0.9 1.0 1.9 13.0 0.7 0.8 1.5 13.5 0.5 0.6 1.1 14.0 0.4 0.4 0.8 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 4 8 0.00 indicatel inital condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY f.2 Pond Routing EVENT• 10 c ~ 2 !! g ... i:> t + .. J !: "D A + ii! c: i! ~ ~ cfs cfs cfs cfs ft 0.76 0.00 0.00 0.00 289.5 2.28 0.00 0.76 0.63 289.6 3.80 0.00 2.28 1.90 289.7 5.33 0.00 3.80 3.16 289.8 6.85 0.00 5.33 4.43 290.0 8.37 0.00 6.85 4.86 290.0 9.89 0.00 8.37 4.98 290.1 11.41 0.00 9.89 5.11 290.1 12.94 0.96 11.41 5.23 290.1 14.46 3.05 13.90 5.42 290.2 14.84 6.08 17.51 5.71 290.2 14.08 8.95 20.92 5.98 290.3 13.32 10.73 23.03 6.15 290.3 12.56 11.58 24.05 6.23 290.4 11.80 11.66 24.14 6.24 290.4 11.03 11.08 23.45 6.19 290.3 10.27 9.96 22.12 6.08 290.3 9.51 8.37 20.23 5.93 290.3 8.75 6.40 17.89 5.74 290.2 7.99 4.10 15.15 5.52 290.2 7.23 1.53 12.09 5.28 290.1 6.47 0.00 8.76 5.02 290.1 5.71 0.00 6.47 4.83 290.0 4.95 0.00 5.71 4.74 290.0 4.19 0.00 4.95 4.11 289.9 3.42 0.00 4.19 3.48 289.9 2.66 0.00 3.42 2.65 289.8 1.90 0.00 2.66 2.21 289.7 1.14 0.00 1.90 1.58 289.7 0.38 0.00 1.14 0.95 289.6 0.00 0.00 0.38 0.32 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00_ 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 8 290.4 DA# 0 w 11)0 ... ~§ i ~ g e: Ii'. 0.. 59.1 14.1 cfs cfs 0.0 0.00 2.1 2.73 4.2 6.08 6.3 9.44 8.4 12.80 10.5 15.33 12.6 17.55 14.7 19.76 16.7 21.98 18.8 24.27 20.9 26.65 23.0 29.01 25.1 31.28 27.2 33.45 29.3 35.55 31.4 37.59 33.5 39.58 35.6 41.52 37.7 43.43 39.8 45.30 41.9 47.15 44.0 48.98 46.1 50.89 48.2 52.90 50.2 54.36 52.3 55.82 54.4 57.28 56.5 58.74 58.6 60.20 58.2 59.17 57.2 57.49 56.1 56.13 55.1 55.08 54.0 54.03 53.0 52.99 51.9 51.94 50.9 50.89 49.8 49.85 48.8 48.80 47.8 47.75 46.7 46.71 45.7 45.88 44.6 4<1.61 43.6 43.57 42.5 42.52 41.5 41.47 40.<I 40.43 39.4 39.38 38.3 38.33 37.3 37.29 36.2 36.24 59 80 DA# ... ~ s:! <( ..... • ..... II) ~ g~ 61.8 14.1 cfs cfs 0.0 0.00 2.2 2.18 4.4 4.37 6.5 6.55 8.7 8.73 10.9 10.91 13.1 13.10 15.3 15.28 17.5 17.46 19.6 19.64 21.8 21.83 24.0 24.01 26.2 26.19 28.4 28.37 30.6 30.56 32.7 32.74 34.9 34.92 37.1 37.11 39.3 39.29 41.5 41.47 43.7 43.65 45.8 45.84 48.0 48.02 50.2 50.20 52.4 52.38 54.6 54.57 56.7 56.75 58.9 58.93 61.1 61.11 60.7 60.70 59.6 59.61 58.5 58.52 57.4 57.42 56.3 56.33 55.2 55.2<1 54.2 54.15 53.1 53.06 52.0 51.97 50.9 50.88 49.8 <19.78 48.7 48.69 <17.6 47.60 46.5 46.51 45.<I 45.42 44.3 44.33 43.2 43.24 42.1 <12.15 41.1 41.05 40.0 39.96 38.9 38.87 37.8 37.78 61 61 9731 pnd2.xls Exhibit E-1 D.A.# D.A.# D.A.# "" .I: 0 Q. w i i!!:; Ill ... ~ ~ ~ ~ 0 Qp 4.1 4.6 Tc 5.0 5.0 Inc 0.5 Time cfs cfs 0.0 0.0 0.0 0.0 0.5 0.4 0.5 0.9 1.0 0.8 0.9 1.7 1.5 1.2 1.4 2.6 2.0 1.6 1.8 3.5 2.5 2.0 2.3 4.3 3.0 2.4 2.8 5.2 3.5 2.8 3.2 6.1 4.0 3.2 3.7 6.9 4.5 3.7 4.1 7.8 5.0 4.1 4.6 8.7 5.5 3.9 4.4 8.2 6.0 3.7 4.1 7.8 6.5 3.4 3.9 7.4 7.0 3.2 3.7 6.9 7.5 3.0 3.5 6.5 8.0 2.8 3.2 6.1 8.5 2.6 3.0 5.6 9.0 2.4 2.8 5.2 9.5 2.2 2.5 4.8 10.0 2.0 2.3 4.3 10.5 1.8 2.1 3.9 11.0 1.6 1.8 3.5 11.5 1.4 1.6 3.0 12.0 1.2 1.4 2.6 12.5 1.0 1.2 2.2 13.0 0.8 0.9 1.7 13.5 0.6 0.7 1.3 14.0 0.4 0.5 0.9 14.5 0.2 0.2 0.4 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 ' 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 4 5 9 0.00 indicates inital condition EXHIBIT "E-1" PROPOSED DETENTION POND ROUTING ·WOODCREEK DETENTION FACIJTY 12 Pond Routing EVENT• 25 ~ c § ~ 0 + .... ;:s 1: i "O • c ~ c~ I ~ ~ cfs cfs cfs cfs ft 0.87 0.00 0.00 0.00 289.5 2.60 0.00 0.87 0.72 289.6 4.33 0.00 2.60 2.16 289.7 6.07 0.00 4.33 3.60 289.9 7.80 0.00 6.07 4.80 290.0 9.53 0.00 7.80 4.94 290.0 11.27 0.00 9.53 5.08 290.1 13.00 0.84 11.27 5.22 290.1 14.73 3.00 13.84 5.42 290.2 16.47 6.27 17.73 5.73 290.2 16.90 10.48 22.74 6.13 290.3 16.03 14.38 27.38 6.50 290.4 15.17 16.94 30.42 6.74 290.5 14.30 18.43 32.10 6.84 290.5 13.43 19.02 32.73 6.85 290.5 12.57 18.76 32.45 6.85 290.5 11.70 17.70 31.32 6.81 290.5 10.83 16.08 29.40 6.66 290.5 9.97 13.99 26.92 6.46 290.4 9.10 11.51 23.96 6.23 290.4 8.23 8.69 20.61 5.96 290.3 7.37 5.59 16.92 5.67 290.2 6.50 2.26 12.96 5.35 290.1 5.63 0.00 8.76 5.02 290.1 4.77 0.00 5.63 4.68 290.0 3.90 0.00 4.77 3.96 289.9 3.03 0.00 3.90 3.24 289.8 2.17 0.00 3.03 2.52 289.8 1.30 0.00 2.17 1.80 289.7 0.43 0.00 1.30 1.08 289.6 0.00 0.00 0.43 0.36 289.6 0.00 0.00 0.00 0.00 289.5 <. 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 1 290.5 D.A.# f3 en o a -A & !5 ~fO G. e Ii'. 67.6 14.1 cfs cfs 0.0 0.00 2.4 3.12 4.8 6.95 7.2 10.79 9.6 14.38 12.0 16.92 14.4 19.45 16.8 21.98 19.2 24.58 21.6 27.29 24.0 30.08 26.3 32.85 28.7 35.48 31.1 37.98 33.5 40.39 35.9 42.78 38.3 45.14 40.7 47.38 43.1 49.58 45.5 51.74 47.9 53.87 50.3 55.97 52.7 58.05 55.1 60.11 57.5 62.17 59.9 63.65 62.3 65.52 64.7 67.20 67.1 68.87 68.6 67.69 65.4 65.78 84.2 64.22 63.0 63.02 61.8 61.82 60.6 60.63 59.4 59.43 58.2 58.23 57.0 57.03 55.8 55.84 54.6 54.64 53.4 53.44 52.2 52.24 51.0 51.04 49.8 49.85 48.6 48.65 47.5 47.45 46.3 46.25 45.1 45.06 43.9 43.86 42.7 42.66 41.5 41.46 67 69 D.A.# ~ ti ~~ • e ~ 70.4 14.1 cfs cfs 0.0 0.00 2.5 2.50 5.0 4.99 7.5 7.49 10.0 9.99 12.5 12.49 15.0 14.98 17.5 17.48 20.0 19.98 22.5 22.48 25.0 24.97 27.5 27.47 30.0 29.97 32.5 32.47 35.0 34.96 37.5 37.46 40.0 39.96 42.5 42.45 45.0 44.95 47.4 47.45 49.9 49.95 52.4 52.44 54.9 54.94 57.4 57.44 59.9 59.94 62.4 62.43 64.9 64.93 67.4 67.43 69.9 69.93 69.4 69.45 68.2 68.20 67.0 66.95 65.7 65.70 64.5 64.45 63.2 63.21 62.0 61.96 60.7 60.71 59.5 59.46 58.2 58.21 57.0 56.96 55.7 55.71 54.5 54.46 53.2 53.22 52.0 51.97 50.7 50.72 49.5 49.47 48.2 48.22 47.0 46.97 45.7 45.72 44.5 44.48 43.2 43.23 70 70 9731 pnd2.xla Exhibit E•1 D.A.# D.A.# D.A.# .. ! 0 ~ ~ m g I s !! Qp 4.6 5.2 Tc 5.0 5.0 Inc 0.5 TI me eta eta 0.0 0.0 0.0 0.0 0.5 0.5 0.5 1.0 1.0 0.9 1.0 2.0 1.5 1.4 1.6 2.9 2.0 1.8 2.1 3.9 2.5 2.3 2.6 4.9 3.0 2.7 3.1 5.9 3.5 3.2 3.6 6.8 4.0 3.7 4.2 7.8 4.5 4.1 4.7 8.8 5.0 4.6 5.2 9.8 5.5 4.3 4.9 9.3 6.0 4.1 4.7 8.8 6.5 3.9 4.4 8.3 7.0 3.7 4.2 7.8 7.5 3.4 3.9 7.3 8.0 3.2 3.6 6.8 8.5 3.0 3.4 6.4 9.0 2.7 3.1 5.9 9.6 2.5 2.9 5.4 10.0 2.3 2.6 4.9 10.5 2.1 2.3 4.4 11.0 1.8 2.1 3.9 11.5 1.6 1.8 3.4 12.0 1.4 1.6 2.9 12.5 1.1 1.3 2.4 13.0 0.9 1.0 2.0 13.5 0.7 0.8 1.5 14.0 0.5 0.5 1.0 14.5 0.2 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAKFlOWS 5 5 10 d.oo indicates inltal oaodition EXHIBIT,•E-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY #2 Pond Routina EVENT• 50 ~ 8 2 ~ ..... 1: + ... i ~ I ~ c + N ~ s ~ efs eta eta cfa ft 0.98 0.00 0.00 0.00 289.5 2.93 0.00 0.98 0.81 289.6 4.88 0.00 2.93 2.44 289.8 6.84 0.00 4.88 4.06 289.9 8.79 0.00 6.84 4.86 290.0 10.75 0.00 8.79 5.02 290.1 12.70 0.40 10.75 5.17 290.1 14.65 2.38 13.10 5.36 290.1 16.61 5.68 17.03 5.67 290.2 18.56 10.10 22.29 6.09 290.3 19.05 15.46 28.67 6.60 290.4 18.07 20.72 34.51 6.90 290.5 17.10 24.80 38.80 7.00 290.6 16.12 27.76 41.90 7.07 290.6 15.14 29.64 43.88 7.12 290.6 14.17 30.51 44.78 7.14 290.6 13.19 30.40 44.67 7.14 290.6 12.21 29.37 43.59 7.11 290.6 11.23 27.45 41.58 7.06 290.6 10.26 24.70 38.69 6.99 290.6 9.28 21.14 34.96 6.91 290.5 8.30 16.94 30.42 6.74 290.6 7.33 12.59 25.25 6.33 290.4 6.35 8.11 19.92 5.90 290.3 5.37 3.52 14.46 5.47 290.2 4.40 0.00 8.89 5.03 290.1 3.42 0.00 4.40 3.65 289.9 2.44 0.00 3.42 2.84 289.8 1.47 0.00 2.44 2.03 289.7 0.49 0.00 1.47 1.22 289.6 0.00 0.00 0.49 0.41 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.S D.A.# 0 w 11>0 ~~5 N l 12 0.: ~ 76.5 14.1 eta cfs 0.0 0.00 2.7 3.52 5.4 7.86 8.1 12.20 10.9 15.71 13.6 18.58 16.3 21.45 19.0 24.35 21.7 27.38 24.4 30.51 27.1 33.73 29.8 36.74 32.6 39.55 35.3 42.34 38.0 45.10 40.7 47.83 43.4 50.54 46.1 53.23 48.8 55.89 51.5 58.54 54.3 61.16 67.0 63.71 59.7 66.01 62.4 68.30 65.1 70.58 67.8 72.84 70.5 74.18 73.2 76.09 76.0 77.99 75.4 76.66 74.1 74.49 72.7 72.73 71.4 71.37 70.0 70.01 68.7 68.66 67.3 67.30 65.9 65.94 64.6 64.59 63.2 63.23 61.9 61.87 60.5 60.52 59.2 59.16 57.8 57.81 56.4 56.45 55.1 55.09 53.7 53.74 52.4 52.38 51.0 51.02 49.7 49.67 48.3 48.31 47.0 46.95 76 78 D.A.# ~~ ti c( II> • .... ~ ~ 2 79.8 14.1 cfs cfs 0.0 0.90 2.8 2.83 5.7 6.66 8.5 8.48 11.3 11.31 14.1 14.14 17.0 16.97 19.8 19.80 22.6 22.63 25.5 25.45 28.3 28.28 31.1 31.11 33.9 33.94 36.8 36.77 39.6 39.59 42.4 42.42 45.3 45.25 48.1 48.08 50.9 50.91 53.7 53.73 56.6 56.56 59.4 59.39 62.2 62.22 65.0 65.05 67.9 67.88 70.7 70.70 73.5 73.53 76.4 76.36 79.2 79.19 78.6 78.65 77.2 77.23 75.8 75.82 74.4 74.41 73.0 72.99 71.6 71.56 70.2 70.16 68.7 68.75 67.3 67.34 65.9 65.92 84.5 64.51 63.1 63.09 61.7 61.68 60.3 60.26 58.9 58.85 57.4 57.44 56.0 56.02 54.6 54.61 53.2 53.19° 51.8 51.78 50.4 50.37 49.0 48.95 79 79 9731 pnd2.Jds Exhibit E-1 D.A.# D.A.# D.A.# 'II: .s: c Q. w • ... z ~ iii ~ ~ ~ ! IOD 5.1 5.8 Tc 5.0 5.0 Inc 0.5 Time cfs c:fs 0.0 0.0 0.0 0.0 0.5 0.5 0.6 1.1 1.0 1.0 1.2 2.2 1.5 1.5 1.7 3.3 2.0 2.0 2.3 4.4 2.5 2.6 2.9 5.5 3.0 3.1 3.5 6.6 3.5 3.6 4.1 7.7 4.0 4.1 4.7 8.7 4.5 4.6 5.2 9.8 5.0 5.1 5.8 10.9 5.5 4.9 5.5 10.4 6.0 4.6 5.2 9.8 6.5 4.4 -4.9 9.3 7.0 4.1 4.7 8.7 7.5 3.8 4.4 8.2 8.0 3.6 4.1 7.7 8.5 3.3 3.8 7.1 9.0 3.1 3.5 6.6 9.5 2.8 3.2 6.0 10.0 2.6 2.9 5.5 10.5 2.3 2.6 4.9 11.0 2.0 2·.3-4.4 11.5 1.8 2.0 3.8 12.0 1.5 1.7 3.3 12.5 1.3 1.5 2.7 13.0 1.0 1.2 2.2 13.5 0.8 0.9 1.6 14.0 0.5 0.6 1.1 14.5 0.3 0.3 0.5 15.0 0.0 0.0 0.0 15.5 0.0 0.0 0.0 16.0 0.0 0.0 0.0 16.5 0.0 0.0 0.0 17.0 0.0 0.0 0.0 17.5 0.0 0.0 0.0 18.0 0.0 0.0 0.0 18.5 0.0 0.0 0.0 19.0 0.0 0.0 0.0 19.5 0.0 0.0 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 PEAK FLOWS 5 6 11 0.00 indicates inilal condition EXHIBIT "E·1" PROPOSED DETENTION POND ROUTING -WOOOCREEK DETENTION FACILITY tl2 Pond Routing EVENT• 100 i c c l? 0 + i i:J .... 'g ~ c t: .... + & ~ 0 .!! .E Ii. w c:fs c:fs cfs cfs ft 1.09 0.00 0.00 0.00 289.5 3.28 0.00 1.09 0.91 289.6 5.47 0.00 3.28 2.73 289.8 7.66 0.00 5.47 4.54 290.0 9.84 0.00 7.66 4.93 290.0 12.03 0.00 9.84 5.10 290.1 14.22 U8 12.03 5.28 290.1 16.40 4.56 15.69 5.57 290.2 18.59 6.99 20.96 5.99 290.3 20.78 14.55 27.58 6.51 290.4 21.32 21.50 35.33 6.92 290.5 20.23 28.64 42.82 7.09 290.6 19.14 34.40 48.87 7.24 290.6 18.04 38.85 53.54 7.35 290.7 16.95 42.04 56.69 7.42 290.7 15.86 44.04 58.99 7.47 290.7 14.76 44.91 59.90 7.50 290.7 13.67 4-4.69 59.67 7.49 290.7 12.58 43.4' 58.36 7.46 290.7 11.48 41.21 56.02 7.40 290.7 10.39 38.04 52.69 7.33 290.7 9.30 33.98 48.43 7.22 290.6 8.20 29.07 43.28 7.10 290.6 7.11 23.35 37.27 6.96 290.5 6.01 16.97 30.46 6.74 290.5 4.92 10.69 22.99 6.15 290.3 3.83 4.49 15.61 5.56 290.2 2.73 0.00 8.32 4.98 290.0 1.64 0.00 2.73 2.27 289.7 0.55 0.00 1.64 1.36 289.7 0.00 0.00 0.55 0.45 289.6 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 .289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 269.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 0.00 0.00 0.00 0.00 289.5 7 290.7 D.A.# c ~ ..I ~ ~ N Q. C( 0 :::> £ I-It 0 E Ii: 86.2 14.1 cfs cfs 0.0 0.00 3.1 3.96 6.1 8.84 9.2 13.71 12.2 17.15 15.3 20.38 18.3 23.61 21.4 26.96 24.4 30.43 27.5 34.01 30.6 37.47 33.6 40.70 36.7 43.90 39.7 47.07 42.8 50.20 45.8 53.31 -48.9 56.38 51.9 59.43 55.0 62.46 58.1 65.46 61.1 68.4-4 64.2 71.39 67.2 74.32 70.3 77.24 73.3 80.08 76.4 82.54 79.4 85.00 82.5 87.48 85.6 67.83 85.0 86.33 83.4 83.90 " 81.9 81.92 80.4 80.39 78.9 78.86 n.3 77.33 75.8 75.80 74.3 74.28 72.7 72.75 71.2 71.22 69.7 69.69 68.2 68.17 66.6 66.64 65.1 65.11 63.6 63.58 62.1 62.05 60.5 60.53 59.0 59.00 57.5 57.47 55.9 55.94 54.4 54.42 52.9 52.89 86 88 D.A.# ~~ ~ • I--;ij g~ 89.9 14.1 cfs cfs 0.0 0.00 3.2 3.19 6.4 6.37 9.6 9.56 12.7 12.74 15.9 15.93 19.1 19.11 22.3 22.30 25.5 25.48 28.7 28.67 31.9 31.86 35.0 35.04 38.2 38.23 41.4 41.41 44.6 44.60 47.6 47.78 51.0 50.97 54.2 54.15 57.3 57.34 60.5 60.52 63.7 63.71 66.9 66.90 70.1 70.08 73.3 73.27 76.5 76.45 79.6 79.64 82.8 82.82 86.0 86.01 89.2 89.19 88.6 88.59 87.0 86.99 85.4 85.40 83.8 83.81 82.2 82.22 80.6 80.62 79.0 79.03 77'.4 77.44 75.8 75.84 74.3 74.25 72.7 72.66 71.1 71.07 69.5 69.47 67.9 67.88 66.3 66.29 64.7 64.69 63.1 63.10 61.5 61.51 59.9 59.92 58.3 58.32 56.7 56.73 55.1 55.14 89 89 9731pnd2.xls 8d'libit E-1 WOODCREEK DETENTION FACILITY #2 5 Year Event Hydrograph Pond -........ ,_ ' ....... ....... ....... 50.00 ....... ....... ....... 40.00 ~ ~ 30 .00 a 20 .00 10.00 0 .00 ~~:::::::::=::::::::=:::::~~~:o::::....._-+-__ _J 0 .00 2.00 4.00 6 .00 8 .00 10.00 Tlme(min.) 12 .00 14 .00 16 .00 18.00 20.00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/29/98 Exhibit E-2 WOODCREEK DETENTION FACILITY #2 10 Year Event Hydrograph Pond 10.00 -.------------------------------------. 60.00 50 .00 40 .00 30 .00 20.00 - 10.00 0 .00 ~~~::::::::::::=:::::::~~~iiiii;;;:,,....--+----+--J 0.00 2 .00 4.00 6 .00 8.00 10 .00 Time(mln.) 12 .00 14 .00 16 .00 18 .00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/29/98 Exhibit E-2 WOODCREEK DETENTION FACILITY #2 25 Year Event Hydrograph Pond 80.00 -.....-----------------------------------. 70.00 60.00 50.00 ~ ..!:!. 40.00 a 30 .00 20.00 10.00 0 .00 ~~=:::::::::=======::::~~~~---+-----+---J 0 .00 2.00 4.00 6.00 8 .00 10.00 Time(min.) 12 .00 14.00 16.00 18.00 20 .00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 7/29/98 - Exhibit E-2 a WOODCREEK DETENTION FACILITY #2 50 Year Event Hydrograph Pond 80.00 -......... ~ ....... ...... ....... ...... 70 .00 ...... ...... ...... 60.00 50.00 40.00 30.00 20.00 10.00 0.00 ~~=::===========::::~~~iiiiii;;;,,,.,_--+----+---J 0 .00 2 .00 4.00 6 .00 8 .00 10.00 Tlme(mln.) 12.00 14.00 16 .00 18.00 20.00 --4A --48 --COMBINED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED ---Exist2 7/29/98 Exhibit E-2 100.00 90 .00 80.00 . 70 .00 60 .00 ~ 50.00 .£. a 40 .00 . 30.00 20 .00 10 .00 0 .00 0 .00 2 .00 4 .00 6.00 WOODCREEK DETENTION FACILITY #2 100 Year Event Hydrograph Pond 8.00 10.00 Tlme(min.) 12 .00 -......... 14.00 ' ...... ...... ...... 16 .00 ...... ...... ...... 18 .00 20 .00 --4A --48 --COMB INED --Qn+1 --Prop2 --TOTAL PROPOSED ROUTED - - -Exist2 7/29/98 Exhibit E-2 0 .160 0 .140 0 .120 ;lo.100 ! t u; 0 .080 0 .060 0 .040 0 .020 WOODCREEK DETENTION FACILITY #2 Stage-Storage Curve 0 .0004-~~~~---~------..,::::=-----~~+-~~~~+-~--~~+-~~~~+-~~~~+--~~~~1--~~-----l 289 289.5 290 290 .5 291 291 .5 292 292.5 293 293.5 Elevatlon (mal) Exhib it E-3 100.000 75 .000 50.000 25 .000 WOODCREEK DETENTION FACILITY #2 Stage-Discharge Curve 0.000 +--------4..-::.._----+------+-----+-------+------+------+------+--------4 289 .0 289 .5 290.0 290 .5 291 .0 291 .5 292 .0 292 .5 293 .0 293 .5 Elevation (msf) Exhibit E-3 O.A.# O.A.# 'II: .J:. 0 ~ !ti! ~ iii .., i "Cl 8 ~ Qp 18.4 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.1 2.1 10.0 4.3 4.3 11.0 6.4 6.4 12.0 8.6 8.6 13.0 10.7 10.7 14.0 12.9 12.9 15.0 15.0 15.0 16.0 17.1 17.1 17.0 17.9 17.9 18.0 16.8 16.8 19.0 15.8 15.8 20.0 14.7 14.7 21.0 13.6 13.6 22.0 12.5 12.5 23.0 11.5 11.5 2'4.0 10.4 10.4 25.0 9.3 9.3 26.0 8.3 8.3 27.0 7.2 7.2 28.0 6.1 6.1 29.0 5.0 5.0 30.0 4.0 4.0 31.0 2.9 2.9 32.0 1.8 1.8 33.0 0.8 0.8 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 . 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 18 18 0.00 indicates inital condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING -wooDCREEK DETENTION FACn.JTY "3 Pond Routing EVENT., 5 O.A.# c g 8 c < ..... ~ l! 0 t: + ~ ~ ..... ~ D.. + c if m 0 E ~ f,l Ii" 66.0 18.3 cfs cts cf'S cf'S ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.14 0.00 0.00 0.00 280.7 0.0 6.43 0.00 2.14 1.56 281.0 3.6 10.71 2.90 6.43 1.76 281.1 72 14.99 9.60 13.61 2.01 281.2 10.8 19.28 19.84 24.59 2.38 281.4 14.5 23.56 33.38 39.11 2.87 281.7 18.1 27.84 50.01 56.94 3.47 282.0 21.7 32.13 70.58 77.85 3.63 282.1 25.3 35.03 95.04 102.71 3.83 282.3 28.9 34.73 121.97 130.08 4.05 282.5 32.5 32.59 148.17 156.70 4.26 282.7 36.1 30.44 171.84 180.76 4.46 282.9 39.8 28.30 193.03 202.29 4.63 283.0 43.4 26.16 211.89 221.33 4.72 283.1 47.0 2'4.02 228.44 238.05 4.80 283.2 50.6 21.88 242.71 252.46 4.87 283.3 54.2 19.73 254.72 264.58 4.93 283.3 57.8 17.59 264.48 274.45 4.98 283.4 61.5 15.45 272.04 282.08 5.02 283.'4 65.1 13.31 277.39 287.'49 5.05 283.5 64.7 11.17 280.58 290.70 5.06 283.5 62.9 9.03 281.61 291.75 5.07 283.5 61.1 6.88 280.51 290.64 5.06 283.5 59.3 4.74 277.30 287.39 5.05 283.5 57.4 '· 2.60 272.00 282.04 5.02 283.4 55.6 0.76 264.64 274.60 4.98 283.4 53.8 0.00 255.52 265.40 4.94 283.3 52.0 0.00 2'45.74 255.52 4.89 283.3 50.2 0.00 236.06 245.74 4.84 283.2 48.4 0.00 226.47 236.06 '4.79 283.2 46.6 0.00 216.98 226.47 4.75 283.1 44.8 0.00 207.58 216.98 4.70 283.1 43.0 0.00 198.27 207.58 4.65 283.0 41.2 0.00 189.07 198.27 4.60 283.0 39.4 0.00 180.03 189.07 4.52 282.9 37.6 0.00 171.12 180.03 4.45 282.8 35.8 0.00 162.36 171.12 4.38 282.8 34.0 0.00 153.74 162.36 4.31 282.7 32.1 0.00 145.26 153.74 '4.24 282.7 30.3 0.00 136.91 145.26 4.17 282.6 28.5 0.00 128.70 136.91 4.11 282.6 26.7 0.00 120.62 128.70 4.04 282.5 24.9 0.00 112.67 120.62 3.98 282.4 23.1 5 283.5 65 O.A.# 0 w GI ~1~ 0 ..... ~ D.. 0 e ~ il. 65.3 14.2 cfs cfs 0.0 0.00 4.6 4.61 9.2 9.22 13.8 13.83 18.4 18.'43 23.0 23.04 27.7 27.65 32.3 32.26 36.9 36.87 '41.5 46.65 46.1 55.08 50.7 63.54 55.3 72.14 59.9 80.85 64.5 89.68 63.4 92.35 61.1 93.86 58.8 95.39 56.5 96.92 54.2 98.42 51.9 99.90 49.6 101.30 47.3 102.70 '45.0 104.08 42.7 105.'45 '40.4 106.81 38.1 108.16 35.8 105.49 33.5 101.39 31.2 97.28 28.8 93.17 26.5 89.04 24.2 84.90 21.9 80.75 19.6 76.60 17.3 72.44 15.0 68.28 12.7 64.12 10.4 59.96 8.1 55.80 5.8 51.64 3.5 47.'47 1.2 43.29 0.0 40.21 0.0 38.33 0.0 36.45 0.0 34.58 0.0 32.70 0.0 30.83 0.0 28.95 0.0 27.08 65 108 O.A.# ~~ tl ~!!l ·~ e~ w 109.1 25.6 cfs cfs 0.0 0.00 4.3 4.26 8.5 8.53 12.8 12.79 17.1 17.05 21.3 21.31 25.6 25.58 29.8 29.84 34.1 34.10 38.4 38.36 42.6 42.63 46.9 46.89 51.2 51.15 55.4 55.42 59.7 59.68 63.9 63.94 68.2 68.20 72.5 72.47 76.7 76.73 81.0 80.99 85.3 85.25 8$.5 89.52 93.8 93.78 98.0 98.04 102.3 102.31 106.6 106.57 108.2 108.25 106.1 106.12 104.0 103.98 101.9 101.85 99.7 99.72 97.6 97.59 95.5 95.46 93.3 93.33 91.2 91.20 89.1 69.06 86'.9 86.93 84.8 84.80 82.7 82.67 80.5 80.54 78.4 78.41 76.3 76.28 74.1 74.14 72.0 72.01 69.9 69.88 67.8 67.75 65.6 65.62 63.5 63.49 61.4 61.36 59.2 59.23 57.1 57.09 108 108 9731pnd3.xls Exhibit F-1 D.A.# D.A.# 'I: -a a l! w z 8' ] iii i 8 Co 20.6 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.4 2.4 10.0 4.8 4.8 11.0 7.2 7.2 12.0 9.6 9.6 13.0 12.0 12.0 14.0 14.4 14.4 15.0 16.8 16.8 16.0 19.2 19.2 17.0 20.1 20.1 18.0 18.9 18.9 19.0 17.7 17.7 20.0 16.5 16.5 21.0 15.3 15.3 22.0 14.1 14.1 23.0 12.9 12.9 24.0 11.7 11.7 25.0 10.5 10.5 26.0 9.3 9.3 27.0 8.1 8.1 28.0 6.9 6.9 29.0 5.7 5.7 30.0 4.5 4.5 31.0 3.3 3.3 32.0 2.1 2.1 33.0 0.9 0.9 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 20 20 0. ()() indic.tes inital condition EXHIBIT "F·1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACLITY t3 Pond Routlna EVENT• 10 D.A.# ~ c ~ l! ~ < .. 0 t + ~~ a:. i ! c 0 l1l ~ Ii 74.7 18.3 eta cfs eta eta ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.40 0.00 0.00 0.00 280.7 0.0 7.20 0.00 2.40 1.63 281.0 4.1 12.00 3.62 7.20 1.79 281.1 8.2 16.80 11.47 15.62 2.07 281.2 12.3 21.60 23.27 28.27 2.50 281.5 16.4 26.40 38.75 44.87 3.06 281.8 20.5 31.20 58.08 65.14 3.53 282.1 24.5 36.00 81.83 89.28 3.73 282.2 28.6 39.25 109.91 117.82 3.95 282.4 32.7 38.91 140.76 149.17 4.20 282.6 36.8 36.51 170.77 179.67 4.45 282.8 40.9 34.11 197.97 207.28 4.65 283.0 45.0 31.71 222.54 232.08 4.77 283.2 49.1 29.31 244.48 254.25 4.88 283.3 53.2 26.91 263.83 273.79 4.98 283.4 57.3 24.51 280.62 290.74 5.06 283.5 61.4 22.11 294.86 305.13 5.13 283.5 65.4 19.71 306.59 316.97 5.19 283.6 69.5 17.31 315.82 326.30 5.24 283.7 73.6 14.91 322.59 333.14 5.27 283.7 73.2 12.51 326.92 337.51 5.29 283.7 71.1 10.11 328.83 339.43 5.30 283.7 69.1 7.71 328.34 338.94 5.30 283.7 67.1 5.31 325.48 336.06 5.29 283.7 65.0 2.91 320.28 330.80 5.26 283.7 63.0 0.86 312.75 323.19 5.22 283.6 80.9 0.00 303.25 313.60 5.17 283.6 58.9 0.00 293.01 303.25 5.12 283.5 56.8 0.00 282.86 293.01 5.07 283.5 54.8 0.00 272.81 282.86 5.02 283.4 52.7 0.00 262.86 272.81 4.97 283.4 50.7 0.00 253.01 282.86 4.93 283.3 48.6 0.00 243.25 253.01 4.88 283.3 46.6 0.00 233.60 243.25 4.83 283.2 44.6 0.00 224.03 233.60 4.78 283.2 42.5 0.00 214.56 224.03 4.74 283.1 40.5 0.00 205.18 214.56 4.69 283.1 38.4 0.00 195.90 205.18 4.64 283.0 36.4 0.00 186.74 195.90 4.58 283.0 34.3 0.00 1l7.73 186.74 4.51 282.9 32.3 0.00 168.87 177.73 4.43 282.8 30.2 0.00 160.14 168.87 4.36 282.8 28.2 0.00 151.56 160.14 4.29 282.7 26.1 5 283.7 74 D.A.# a w Ill UI Q 0 ~§§ .. Q. ~ ef ir 73.6 14.2 cfs eta 0.0 0.00 5.2 5.20 10.4 10.39 15.6 15.59 20.8 20.78 26.0 25.98 31.2 31.18 36.4 36.37 41.6 41.57 46.8 52.48 52.0 61.93 57.2 71.50 62.4 81.21 67.5 91.06 72.7 100.82 71.5 103.86 68.9 105.58 66.3 107.32 63.7 109.06 61.1 110.75 58.5 112.37 55.9 113.97 53.3 115.56 50.7 117.13 48.1 118.70 45.5 120.25 42.9 121.79 40.3 118.78 37.7 114.16 35.1 109.52 32.5 104.88 29.9 100.22 27.3 95.55 24.7 90.87 22.1 86.18 19.5 81.49 16.9 76.79 14.3 72.10 11.7 67.41 9.1 62.71 6.5 58.02 3.9 53.33 1.4 48.64 0.0 45.20 0.0 43.11 0.0 41.02 0.0 38.91 0.0 38.79 0.0 34.67 0.0 32.55 0.0 30.44 73 122 D.A.# ~~ t! • ~!I! ~ 2~ 124.1 25.6 cfs cfs 0.0 0.00 4.8 4.85 9.7 9.70 14.5 14.55 19.4 19.40 24.2 24.25 29.1 29.10 33.9 33.95 38.8 38.79 43.6 43.64 48.5 48.49 53.3 53.34 58.2 58.19 63.0 63.04 67.9 67.89 72.7 72.74 77.6 77.59 82.4 82.44 87.3 87.29 92.1 92.14 97.0 96.99 101.8 101.84 106.7 106.69 111.5 111.54 116.4 116.38 121.2 121.23 123.1 123.14 120.7 120.72 118.3 118.29 115.9 115.87 113.4 113.44 111.0 111.02 108.6 108.60 108.2 106.17 103.7 103.75 101.3 101.32 98.9 98.90 96.5 96.47 94.0 94.05 91.6 91.62 89.2 89.20 86.8 86.77 84.3 84.35 81.9 81.92 79.5 79.50 77.1 77.07 74.6 74.65 72.2 72.22 69.8 69.80 67.4 67.38 65.0 64.95 123 123 9731pod3.xla -E>ihibit F· 1 O.A.# D.A.# "" -a. Q ~ f I C') ! "'O ~ QI) 23.5 Tc 8.6 Inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 2.7 2.7 10.0 5.5 5.5 11.0 8.2 8.2 12.0 11.0 11.0 13.0 13.7 13.7 14.0 16.4 16.4 15.0 19.2 19.2 16.0 21.9 21.9 17.0 22.9 22.9 18.0 21.5 21.5 19.0 20.1 20.1 20.0 18.8 18.8 21.0 17.4 17.4 22.0 16.0 16.0 23.0 14.7 14.7 24.0 13.3 13.3 25.0 11.9 11.9 26.0 10.6 10.6 27.0 92 9.2 28.0 7.8 7.8 29.0 6.5 6.5 30.0 5.1 5.1 31.0 3.7 3.7 32.0 2.3 2.3 33.0 1.0 1.0 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 o.o· 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 23 23 o.oo indicales inital condition · EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING -wooocREEK DETENTION FACILITY '3 Pond Routlna EVENT• 25 D.A.# I i j c( -Cl + + -c -Jl a. I c ~ ~ ~ ~ 85.6 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 260.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 2.74 0.00 0.00 0.00 280.7 0.0 8.22 0.00 2.74 1.64 281.0 4.7 13.69 4.57 8.22 1.82 281.1 9.4 19.17 13.94 18.26 2.16 281.3 14.1 24.65 27.78 33.11 2.66 281.6 18.7 30.13 45.80 52.43 3.32 281.9 23.4 35.60 68.69 75.93 3.62 282.1 28.1 41.08 96.60 104.29 3.85 282.3 32.8 44.60 129.46 137.68 4.11 282.6 37.5 44.41 165.45 174.26 4.41 282.8 42.2 41.67 200.52 209.85 4.67 283.0 46.9 38.93 232.54 242.19 4.82 283.2 51.6 36.19 261.53 271.47 4.97 283.4 56.2 33.45 287.53 297.72 5.10 283.5 60.9 30.71 310.56 320.98 5.21 283.6 65.6 27.97 330.65 341.27 5.31 283.7 70.3 25.23 347.83 358.62 5.40 263.8 75.0 22.50 362.13 373.07 5.47 283.9 79.7 19.76 373.56 364.63 5.52 264.0 84.4 17.02 382.06 393.34 5.64 264.0 83.9 14.28 387.50 399.08 5.79 284.0 81.5 11.54 390.07 401.78 5.85 264.1 79.2 8.80 389.91 401.62 5.65 264.0 76.8 6.06 387.16 398.72 5.78 264.0 74.5 ... 3.32 381.95 393.23 5.64 264.0 72.1 0.98 374.22 385.26 5.53 284.0 69.8 0.00 364.25 375.20 5.48 283.9 67.5 0.00 353.40 364.25 5.42 283.9 65.1 0.00 342.66 353.40 5.37 283.8 62.8 0.00 332.02 342.66 5.32 283.7 60.4 0.00 321.49 332.02 5.27 263.7 58.1 0.00 311.06 321.49 5.21 283.6 55.7 0.00 300.74 311.06 5.16 283.6 53.4 0.00 290.52 300.74 5.11 263.5 51.1 0.00 280.39 290.52 5.06 283.5 48.7 0.00 270.37 280.39 5.01 263.4 46.4 0.00 260.44 270.37 4.96 263.4 44.0 0.00 250.62 260.44 4.91 283.3 41.7 0.00 240.89 250.62 4.67 283.3 39.3 0.00 231.25 240.69 4.82 263.2 37.0 0.00 221.71 231.25 4.n 263.2 34.6 0.00 212.26 221.71 4.72 283.1 32.3 0.00 202.91 212.26 4.68 263.1 30.0 6 284.1 84 D.A.# £il m 11>0 Cl -'~5 1 ~~ e o: ~ M.3 14.2 cfs cfs 0.0 0.00 5.9 5.95 11.9 11.89 17.6 17.64 23.8 23.78 29.7 29.73 35.7 35.67 41.6 41.62 47.6 47.56 53.5 59.83 59.5 70.65 65.4 81.62 71.3 92.76 77.3 104.04 83.2 114.98 81.8 118.46 78.8 120.44 75.9 122.45 72.9 124.43 69.9 126.30 66.9 128.16 64.0 130.00 61.0 131.83 58.0 133.65 55.1 135.45 52.1 137.23 49.1 139.00 46.1 135.64 43.2 130.47 40.2 125.22 37.2 119.90 34.2 114.51 31.3 109.06 28.3 103.63 25.3 98.26 22.4 92.89 19.4 87.52 16.4 82.15 13.4 76.79 10.5 71.42 7.5 66.05 4.5 60.68 1.5 55.32 0.0 51.36 0.0 46.99 0.0 46.59 0.0 44.20 0.0 41.81 0.0 39.42 0.0 37.03 0.0 34.64 83 139 D.A.# " ..... ~ a c( II) .!! t--~ E~ 142.5 25.6 cfs cfs 0.0 0.00 5.6 5.57 11.1 11.14 16.7 16.71 22.3 22.28 27.8 27.85 33.4 33.41 39.0 38.98 44.6 44.55 50.1 50.12 55.7 55.69 61.3 61.26 66.8 66.83 72.4 72.40 78.0 77.97 83.5 83.54 89.1 89.10 94.7 94.67 100.2 100.24 105.8 105.81 111.4 111.38 116.9 116.95 122.5 122.52 128.1 128.09 133.7 133.66 139.2 139.23 141.4 141.42 138.6 138.63 135.8 135.85 133.1 133.06 130.3 130.28 127.5 127.50 124.7 124.71 121.9 121.93 119.1 119.14 116.4 116.36 113~6 113.57 110.8 110.79 108.0 108.00 105.2 105.22 102.4 102.44 99.7 99.65 96.9 96.87 94.1 94.08 91.3 91.30 68.5 66.51 85.7 65.73 62.9 82.94 80.2 80.16 77.4 77.37 74.6 74.59 141 141 9731pnd3Jds Elct\ibit F-1 DA# DA# 'II: -a 0 w i ~ .., ~ "O ~ 0 Qo 26.5 Tc 8.6 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 3.1 3.1 10.0 6.2 6.2 11.0 9.3 9.3 12.0 12.4 12.4 13.0 15.5 15.5 14.0 18.6 18.6 15.0 21.7 21.7 16.0 24.8 24.8 17.0 25.9 25.9 18.0 24.3 24.3 19.0 22.8 22.8 20.0 21.2 21.2 21.0 19.7 19.7 22.0 18.1 18.1 23.0 16.6 16.6 24.0 15.0 15.0 25.0 13.5 13.5 26.0 11.9 11.9 27.0 10.4 10.4 28.0 8.8 8.8 29.0 7.3 7.3 30.0 5.7 5.7 31.0 4.2 4.2 32.0 2.7 2.7 33.0 1.1 1.1 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 26 26 0. 00 indicalet inltal condition EXHIBIT "F-1" PROPOSED DETENTION POND ROUTING WOODCREEK DETENTION FACILITY 13 Pond Routlna EVENT• 50 DA# I c 8 g < ~ 0 .,!. ... 1: ... '§ ~ I ! ~ 5 :I.I Ii. di 97.1 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 3.09 0.00 0.00 0.00 280.7 0.0 9.28 0.00 3.09 1.65 281.0 5.3 15.47 5.56 9.28 1.86 281.1 10.6 21.66 16.52 21.03 2.26 281.3 15.9 27.84 32.51 38.18 2.84 281.7 21.3 34.03 53.36 60.35 3.49 282.0 26.6 40.22 79.97 87.39 3.71 282.2 31.9 46.41 112.25 120.19 3.97 282.4 37.2 50.60 150.09 158.65 4.28 282.7 42.5 50.16 191.46 200.70 4.62 283.0 47.8 47.07 231.98 241.62 4.82 2832 53.2 43.97 269.04 279.05 5.01 283.4 58.5 40.88 302.67 313.01 5.17 283.6 63.8 37.79 332.91 343.55 5.32 283.8 69.1 34.69 359.78 370.69 5.46 283.9 74.4 31.60 383.14 394.47 5.67 284.0 79.7 28.51 402.37 414.74 6.18 284.1 65.1 25.41 417.68 430.87 6.59 284.2 90.4 22.32 429.28 443.09 6.91 284.2 95.7 19.22 437.36 451.60 7.12 264.3 95.1 16.13 442.08 456.58 7.25 284.3 92.5 13.04 443.63 458.21 7.29 284.3 89.8 9.94 442.17 456.67 7.25 284.3 87.1 6.85 437.64 452.11 7.14 284.3 84.5 3.75 430.80 444.69 6.95 284.2 81.8 1.10 421.17 434.55 6.69 2842 79.2 0.00 409.53 422.28 6.38 284.1 76.5 0.00 397.42 409.53 6.05 284.1 73.9 0.00 385.94 397.42 5.74 284.0 71.2 0.00 374.87 385.94 5.53 284.0 68.5 0.00 363.92 374.87 5.48 283.9 65.9 0.00 353.08 363.92 5.42 283.9 63.2 0.00 342.34 353.08 5.37 283.8 60.6 0.00 331.71 342.34 5.32 283.7 57.9 0.00 321.18 331.71 5.26 283.7 55.2 0.00 310.76 321.18 5.21 283.6 52.6 0.00 300.44 310.76 5.16 283.6 49.9 0.00 290.22 300.44 5.11 283.5 47.3 0.00 280.10 290.22 5.06 283.5 44.6 0.00 270.07 280.10 5.01 283.4 42.0 0.00 260.15 270.07 4.96 263.4 39.3 0.00 250.33 260.15 4.91 283.3 36.6 0.00 240.60 250.33 4.66 283.3 34.0 7 284.3 96 DA# 0 w _,~Ii) Ill 0 I ~~~ 95.4 14.2 cfs cfs 0.0 0.00 6.7 6.73 13.5 13.47 20.2 20.20 26.9 26.93 33.7 33.66 40.4 40.40 47.1 47.13 53.9 53.86 60.6 67.56 67.3 79.82 74.1 92.27 80.8 104.90 87.5 117.60 94.3 129.87 92.6 133.83 89.3 136.09 85.9 138.38 82.5 140.53 79.2 142.66 75.8 144.78 72.4 146.88 69.1 148.96 65.7 151.13 62.3 153.59 59.0 155.95 55.6 156.21 52.2 154.49 48.9 148.59 45.5 142.61 42.1 136.54 38.8 130.40 35.4 124.19 32.0 117.91 28.7 111.57 25.S 10522 21.9 98.89 18.6 92.65 15.2 86.57 11.8 80.49 8.5 74.41 5.1 68.34 1.8 62.26 0.0 57.80 0.0 55.09 0.0 52.38 0.0 49.67 0.0 46.97 0.0 44.26 0.0 41.55 0.0 38.85 94 158 DA# C) _, z $3 < f: ~ e~ ~ 162.0 25.6 cfs cfs 0.0 0.00 6.3 6.33 12.7 12.66 19.0 18.99 25.3 25.32 31.7 31.65 38.0 37.98 44.3 44.31 50.6 50.64 57.0 56.97 63.3 63.30 69.6 69.63 76.0 75.96 82.3 82.29 88.6 88.62 95.0 94.95 101.3 101.28 107.6 107.61 113.9 113.94 120.3 120.27 126.6 126.60 132.9 132.93 139.3 139.26 145.6 145.59 151.9 151.92 158.3 158.25 160.7 160.74 157.6 157.58 154.4 154.41 151.2 151.25 148.1 148.08 144.9 144.92 141.8 141.75 138.6 138.59 135.4 135.42 132.3 132.26 129.1 129.09 125.9 125.93 122.8 122.76 119.6 119.60 116.4 116.43 113.3 113.27 110.1 110.10 106.9 106.94 103.8 103.77 100.6 100.61 97.4 97.44 94.3 94.28 91.1 91.11 87.9 67.95 84.8 84.78 161 161 9731 pnd3.ldll E>itlibit F-1 D.A.# DA# .. i. Ii} I! z gi J iii i 8 100 29.8 Tc 8.6 inc 1.0 Time cfs cfs 0.0 0.0 0.0 1.0 0.0 0.0 2.0 0.0 0.0 3.0 0.0 0.0 4.0 0.0 0.0 5.0 0.0 0.0 6.0 0.0 0.0 7.0 0.0 0.0 8.0 0.0 0.0 9.0 3.5 3.5 10.0 6.9 6.9 11.0 10.4 10.4 12.0 13.9 13.9 13.0 17.4 17.4 14.0 20.8 20.8 15.0 24.3 24.3 16.0 27.8 27.8 17.0 29.0 29.0 18.0 27.3 27.3 19.0 25.6 25.6 20.0 23.8 23.8 21.0 22.1 22.1 22.0 20.3 20.3 23.0 18.6 18.6 24.0 16.9 16.9 25.0 15.1 15.1 26.0 13.4 13.4 27.0 11.7 11.7 28.0 9.9 9.9 29.0 8.2 8.2 30.0 6.4 6.4 31.0 4.7 4.7 32.0 3.0 3.0 33.0 1.2 1.2 34.0 0.0 0.0 35.0 0.0 0.0 36.0 0.0 0.0 37.0 0.0 0.0 38.0 0.0 0.0 39.0 0.0 0.0 40.0 0.0 0.0 41.0 0.0 0.0 42.0 0.0 0.0 43.0 0.0 0.0 44.0 0.0 0.0 45.0 0.0 0.0 -46.0 0.0 0.0 47.0 0.0 0.0 48.0 0.0 0.0 49.0 0.0 0.0 50.0 0.0 0.0 PEAK FLOWS 29 29 0.00 indicates inital condition EXHIBIT "F·1" PROPOSED DETENTION POND ROUTING ·WOODCREEK DETENTION FACILITY #3 Pond Routing EVENT• 100 D.A.# ~ 2 J:! ~ "' ... 0 t: ... .... ,, " ... ~ + 8-I ~ A c > N if m D: 109.6 18.3 cfs cfs cfs cfs ft cfs 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 0.00 0.00 0.00 0.00 280.7 0.0 3.47 0.00 0.00 0.00 280.7 0.0 10.42 0.15 3.47 1.66 261.0 6.0 17.37 6.76 10.57 1.90 281.2 12.0 24.31 19.40 24.12 2.36 281.4 18.0 31.26 37.67 43.71 3.02 281.8 24.0 38.20 61.80 68.93 3.56 282.1 30.0 45.15 92.38 100.01 3.81 282.3 36.0 52.10 129.31 137.53 4.11 282.6 42.0 56.81 172.48 181.40 4.46 282.9 48.0 56.31 219.77 229.29 4.76 283.1 54.0 52.84 266.09 276.08 4.99 283.4 60.0 49.36 308.53 318.93 5.20 283.6 66.0 45.89 347.11 357.89 5.39 283.8 72.0 42.42 381.74 393.00 5.63 284.0 78.0 38.95 411.31 424.16 6.42 284.1 84.0 35.47 436.08 450.25 7.09 284.3 90.0 32.00 456.29 471.55 7.63 284.3 96.0 28.53 472.18 488.29 8.06 284.4 102.0 25.05 483.96 500.71 8.37 284.5 108.0 21.58 491.85 509.02 8.58 284.5 107.4 18.11 496.04 513.43 8.70 284.5 104.4 14.63 496.72 514.15 8.71 284.5 101.4 11.16 494.07 511.36 8.64 284.5 98.4 7.69 488.26 505.23 8.49 284.5 95.4 '· 4.22 479.45 495.95 8.26 284.4 92.4 1.24 467.79 483.66 7.94 284.4 89.4 0.00 453.90 469.03 7.57 284.3 86.4 0.00 439.54 453.90 7.18 284.3 83.4 0.00 425.90 439.64 6.82 284.2 80.4 0.00 412.97 425.90 6.47 284.2 77.4 0.00 400.69 412.97 6.14 284.1 74.4 0.00 389.04 400.69 5.83 284.0 71.4 0.00 377.95 389.04 5.55 284.0 68.4 0.00 366.96 377.95 5.49 283.9 65.4 0.00 356.09 366.96 5.44 283.9 62.4 0.00 345.32 356.09 5.38 283.8 59.4 0.00 334.66 345.32 5.33 283.8 56.4 0.00 324.11 334.66 5.28 283.7 53.4 0.00 313.65 324.11 5.23 283.7 50.4 0.00 303.30 313.65 5.18 283.6 -47.4 0.00 293.05 303.30 5.12 283.5 44.4 0.00 282.91 293.05 5.07 283.5 41.4 0.00 272.86 282.91 5.02 283.4 38.4 9 284.5 108 DA# 0 w m II) c 0 ~~~ .... ~ Q. g a:: 107.5 14.2 cfs cfs 0.0 0.00 7.6 7.58 15.2 15.17 22.8 22.75 30.3 30.34 37.9 37.92 45.5 45.50 53.1 53.09 60.7 60.67 68.3 75.92 75.8 89.74 83.4 103.79 91.0 118.03 98.6 132.16 106.2 145.99 104.4 150.47 100.6 153.03 96.8 155.54 93.0 157.97 89.2 160.39 85.4 162.79 81.6 165.24 77.8 168.24 74.0 171.11 70.2 173.86 66.4 176.50 62.6 179.02 58.9 174.79 55.1 168.11 51.3 161.34 47.5 154.47 43.7 147.53 39.9 140.50 36.1 133.39 32.3 126.23 28.5 119.05 24.7 111.89 20.9 104.76 17.1 97.63 13.3 90.53 9.6 83.46 5.8 76.61 2.0 69.76 0.0 64.74 0.0 61.68 0.0 58.63 0.0 55.58 0.0 52.53 0.0 49.48 0.0 46.43 0.0 43.38 106 179 D.A.# 0 ..I~ t! "' I-• I-~ ;n g~ 183.4 25.6 cfs cfs 0.0 0.00 7.2 7.17 14.3 14.33 21.5 21.50 28.7 28.66 35.8 35.83 43.0 42.99 50.2 50.16 57.3 57.32 64.5 64.49 71.7 71.65 78.8 78.82 86.0 85.98 93.1 93.15 100.3 100.31 107.5 107.48 114.6 114.64 121.8 121.81 129.0 128.97 136.1 136.14 143.3 143.31 150.5 150.41 157.6 157.64 164.8 164.80 172.0 171.97 179.1 179.13 182.0 181.95 178.4 178.37 174.8 174.79 171.2 171.20 167.6 167.62 164.0 164.04 160.5 160.46 156.9 156.87 153.3 153.29 149.7 149.71 146'.1 146.13 142.5 142.54 139.0 138.96 135.4 135.38 131.8 131.80 128.2 128.21 124.6 124.63 121.0 121.05 117.5 117.47 113.9 113.88 110.3 110.30 106.7 106.72 103.1 103.13 99.6 99.55 96.0 95.97 182 182 9731pnd3.xls Exhibit F-1 WOODCREEK DETENTION FACILITY #3 5 Year Event Hydrograph Pond 120 .00 -r-----------------------------------. 100.00 80.00 / / / / / / / / / E .:!. 60.00 a 40.00 20.00 . o.oo JL_----+-_ _£~===~=========::s=:==-_J 0.00 5.00 10 .00 15 .00 20.00 Time(min.) 25.00 30.00 35.00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 WOODCREEK DETENTION FACILITY #3 10 Year Event Hydrograph Pond 140.00 -----------------------------------. 120.00 100.00 / / 80 .00 60 .00 - 40 .00 20 .00 / / / / /' / / 0 .00 JL---+-~~=====::==~========:::::;:=:=~J 0.00 5.00 10.00 15.00 20 .00 Tlme(min.) 25 .00 30.00 35.00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exh ibit F-2 WOODCREEK DETENTION FACILITY #3 25 Year Event Hydrograph Pond 160.00 -.-----------------------------------. 140 .00 120 .00 100 .00 / / / / / / / / ~ .!:!. 80.00 a 60.00 40 .00 20 .00 0 .00 JL-~--....:1~~==::;:==::=======::::;:==-J 0.00 5.00 10.00 15 .00 20 .00 Time(min.) 25 .00 30 .00 35 .00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED -- -Exist3 9/29/98 Exhibit F-2 WOODCREEK DETENTION FACILITY #3 50 Year Event Hydrograph Pond 180.00 ..-----------------------------------. 160.00 - 140.00 120.00 100.00 / 80.00 60.00 40.00 20 .00 / / / / / / / o.oo ~---+--..4.~~==:::;::::==:===:==::::s::=:==-_J 0 .00 5.00 10.00 15.00 20.00 Tlme(min.) 25.00 30.00 35 .00 40.00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 180 .00 160 .00 140.00 120.00 '.[ 100.00 (J 80 .00 60 .00 40.00 20 .00 WOODCREEK DETENTION FACILITY #3 100 Year Event Hydrograph Pond / / / / / / / / ,,,-~ ..... ..... ...... ..... ..... ...... ..... ...... ..... 0 .00 JL~--+---_....~~====~============:::;;:::===--J 0 .00 5.00 10.00 15.00 20.00 Tlme(min.) 25 .00 30 .00 35 .00 40 .00 --Pond3 --Qn+1 Prop10A --Prop10B --TOTAL PROPOSED ROUTED - - -Exist3 9/29/98 Exhibit F-2 0 .600 0 .500 -0.400 cf u .!!. f "' 0 .300 0.200 0.100 WOODCREEK DETENTION FACILITY #3 Stage-Storage Curve 0 .000+-~~~-41--_.,.:::::;....~~~~~+--~~~~~-1-~~~~~~~~~~~~-1-~~~~~---;.~~~~~~ 280 281 282 283 284 285 286 287 Elevation (msl) Exhibit F-3 i Cl f 25.000 ~ i3 WOODCREEK DETENTION FACILITY #3 Stage-Discharge Curve 0.000+-----*'----+-------+-------+--------+-------+-------ii----------1 280.0 281 .0 282 .0 283.0 284.0 285.0 286.0 287 .0 Elevation (msl) Exhibit F-3 §: c ,g Cll > .!! w woodcreek10 Exhibit G-1 300~~.....l!::=================================-1trib3..=================================:!L--.~~~-Legen~-d~~~ 295 290 285 280 ., ·i; .., 275 I '5 E l " 270 .2' i " 0 .2' 8. il ·o. ., ~ ~ .2' "' " 'l5 .., u 8. '5 8. 1 i a: '5 ~ -ll j s; 265 600 800 1000 1200 1400 1600 Main Channel Distance (ft) ~ .., 8. "' '5 l E i 15 E " l l5 1 " 1800 2000 2200 2400 WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr . Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground HEC-RAS Plan: Plan 01 River. foxfire trib Reach: tnb 3 Reach River Sta Q Total Min Ch El W.S. Elev CritW.S. E.G. Elev E.G. Slope VelChnl Flow Area Top Width Froude#Chl (cfs) (ft) (ft) (ft) (ft) (Mt) (fVs) (sq ft) (ft) trib 3 700 311.00 269.30 272.37 271.25 272.56 0.008001 3.90 103.03 45.24 0.44 trib3 700 269.00 269.30 272.17 271.13 272.34 0.008003 3.68 94.05 44.03 0.44 trib 3 700 235.00 269.30 272.00 271.03 272.15 0.008002 3.48 86.57 43.00 0.43 trib.3 700 186.00 269.30 271.72 270.86 . 271.85 0.008003 3.21 74.52 42.44 0.42 trib 3 700 146.00 269.30 271.47 270.72 271.57 0.008004 2.94 63.83 41.93 ·0.41 tnb 3 760 311.00 270.00 272.89 273.16 0.011576 4.26 78.58 43.00 0.53 trib 3 760 269.00 270.00 272.69 272.94 0.011778 4.09 70.30 41.26 0.52 trib 3 760 235.00 270.00 272.52 272.76 0.011930 3.93 63.49 39.78 0.52 trib 3 760 186.00 270.00 272.25 272.46 0.012350 3.68 53.11 37.40 0.52 trib 3 760 146.00 270.00 272.01 272.19 0.012760 3.43 44.30 35.26 0.52 trlb 3 805 223.00 269.50 273.46 273.62 0.008059 3.25 71.17 41.88 0.42 trib 3 805 193.00 269.50 273.26 273.42 0.008461 3.15 63.16 40.15 0.43 trib 3 805 169.00 269.50 273.10 272.35 273.24 0.008877 3.07 56.59 38.68 0.43 trib 3 805 134.00 269.50 272.84 272.20 272.97 0.009614 2.91 46.88 36.40 0.44 ~ ~ tnb3 805 105.00 269.50 272.61 272.05 272.72 0.010342 2.75 38.72 34.36 0.45 ? N bib 3 967 223.00 270.71 274.66 273.44 274.82 0.006841 3.17 70.35 35.62 0.40 trib 3 967 193.00 270.71 274.48 273.29 274.62 0.006589 3.01 64.02 33.98 0.39 trib 3 967 169.00 210.71 274.32 273.14 274.45 0.006373 2.88 58.68 32.53 0.38 bib 3 967 134.00 270.71 274.07. 272.93 274.17 0.005904 2.64 50.74 30.25 0.36 tnb3 967 105.00 270.71 273~82 272.72 273.91 0.005406 2.40 43.68 28.06 0.34 bib 3 1267 223.00 274.50 278.24 278.24 279.33 0.033864 10.25 40.67 20.52 0.97 trib 3 1267 193.00 274.50 278.01 278.01 279.03 0.033665 9.77 36.12 19.36 0.95 trib 3 1267 169.00 274.50 277.78 277.78 278.76 0.034814 9.47 31.87 18.20 0.96 trib 3 1267 134.00 274.50 277.44 277.44 278.34 0.035598 8.85 25.99 16.47 0.95 trib 3 1267 105.00 274.50 277.11 277.11 277.93 0.036953 8.27 20.86 14.79 0.95 trib 3 1480 186.00 277.50 282.23 282.57 0.007170 5.91 62.13 22.28 0.48 trib 3 1480 162.00 277.50 281.92 282.24 0.007159 5.65 55.50 21.10 0.47 trib 3 1480 141.00 277.50 281.66 281.96 0.006944 5.34 50.15 20.10 0.46 trib 3 1480 112.00 277.50 281.24 281.50 0.006753 4.90 42.02 18.46 -0.45 trib 3 1480 87.00 277.50 280.83 281.05 0.006483 4.45 34.77 16.88 0.43 HEC-RAS Plan: Plan 01 River. foxfire !rib Reach: trib 3 (Continued) Reach River Sta a Total Min Ch El W.S. Elev CritW.S. E.G. Elev E.G. Slope VelChnl Flem Area Top Width Froude#Chl (cfs) (ft) (ft) (ft) (ft) (ft/ft) (ft/s) (sq ft) (ft) trib 3 1622 Culvert trib 3 1623 186.00 278.16 288.14 282.29 286.49 0.000094 4.78 42.07 20.00 0.27 trib 3 1623 162.00 278.16 287.44 281.92 287.75 0.000091 4.48 37.06 4.09 0.26 tnb3 1623 141.00 278.16 285.72 281.59 286.07 0.000137 4.78 30.05 4.05 0.31 trib 3 1623 112.00 278.16 263.55 281.10 283.99 0.000267 5.33 21.32 4.01 0.40 !rib 3 1623 87.00 278.16 282.46 280.64 282.87 0.000343 5.19 16.94 3.99 0.44 trib 3 1626 142.00 281.30 288.07 288.52 0.000200 5.38 28.19 20.00 0.36 trib 3 1626 124.00 281.30 287.36 287.79 0.000221 5.25 24.17 4.08 0.38 trib 3 1626 108.00 281.30 285.49 286.17 0.000573 6.60 16.62 4.03 0.57 trib 3 1626 86.00 281.30 283.77 283.77 285.01 0.002132 8.94 9.71 3.97 1.00 trib 3 1626 67.00 261.30 283.39 283.39 284.44 0.002262 8.24 8.20 3.96 1.01 ~ trib 3 1671 Culvert ~ trib 3 1672 142.00 281.52 288.60 283.92 288.65 0.000049 2.62 329.09 75.00 0.18 ?" N trib 3 1672 124.00 281.52 288.34 263.75 286.38 0.000043 2.41 309.75 75.00 0.17 trib 3 1672 108.00 281.52 287.46 283.60 287.51 0.000058 2.52 245.66 69.17 0.19 trib 3 1672 86.00 281.52 286.14 283.37 286.21 0.000097 2.74 163.72 54.85 0.23 trib 3 1672 67.00 281.52 285.48 283.16 285.54 0.000106 2.57 129.84 47.70 0.24 trib 3 1914 142.00 285.50 288.54 288.54 289.32 0.038790 9.29 31.44 21.19 0.98 trib 3 1914 124.00 285.50 288.37 288.37 289.12 0.039035 8.94 27.98 19.99 0.97 bib 3 1914 108.00 285.50 288.21 286.21 288.92 0.039186 8.59 24.86 18.84 0.97 bib 3 1914 86.00 285.50 287.96 287.96 288.62 0.039349 8.03 20.46 17.08 0.95 tnb 3 1914 67.00 285.50 287.71 287.71 288.31 0.040254 7.49 16.38 15.27 0.94 bib 3 2320 99.00 292.50 296.01 294.98 296.22 0.007596 4.65 41.25 22.78 0.45 trib 3 2320 86.00 292.50 295.80 294.82 296.01 0.007523 4.43 36.80 21.53 0.45 trib 3 2320 75.00 292.50 295.61 294.67 295.80 0.007508 4.24 32.82 20.34 0.44 trib 3 2320 60.00 292.50 295.32 294.45 295.50 0.007509 3.95 27.19 18.53 0.43 trib 3 2320 47.00 292.50 295.04 294.24 295.19 0.007434 3.64 22.22 16.77 0.42 woodcreek10 wood creek 1 O RS= 2320 Exhibit G-2 RS= 1914 Exhibit G-2 294 12 06!1:! .1 297 Legend Legend WS 100 Yr. Storm WS 100 Yr. Storm 296 WS 50 Yr. Storm 292 WS 50 Yr. Storm WS 25 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 10Yr. Storm g 295 WS 5 Yr. Storm g 290 WS 5 Yr. Storm c Ground c Ground 0 • ~ • ~ Bank Sta Bank Sta > > .9! 294 .9! 288 w w 293 286 292 284 10 15 20 25 30 35 40 0 10 20 30 40 50 Station (ft} Station (ft) woodcreek10 wood creek 10 RS= 1672 Exhibit G-2 RS= 1671 Exhibit G-2 289r .12 289r .1 0 Legend 6 Legend 1 1 4 WS 100 Yr. Storm 4 ws 100 Yr. Storm 288 288 WS 50 Yr. Storm WS 50 Yr. Storm 287 WS 25 Yr. Storm 287 WS 25 Yr. Storm WS 10 Yr. Storm WS 10 Yr. Storm g 286 WS 5 Yr. Storm g 286 WS 5 Yr. Storm c Ground c Ground 0 285 • 0 285 • ~ Bank Sta ~ Bank Sta > > .9! .9! w 284 w 284 283 283 282 282 281 281 0 20 40 60 80 0 20 40 60 80 Station (ft) Station (ft) g c :8 m > GI w g c i > .9! w woodcreek10 woodcreek10 RS= 1671 Exhibit G-2 RS = 1626 Exhibit G-2 .12====~==.014.=:!!!::==·12 =1 Legend 289~====..12.:====::::!:l!::::::::..014:.=:!!!::==·12 Legend 289f 288 __________ ...,.,,""°"""",.,..... ______ ., 1 WS 100 Yr. Storm 288 ..... !!!!!1!!1!!!1!1!!!!!!!!!1!!!!!!!!1!!!!11!!!!1!1!!!!!1!!!!!!!!!1!!!!1!!!!!!!1!1!!!!!!1!!1!!1!----............ .....,....., ....... I WS 100 Yr. Stonn WS 50 Yr. Storm 287 286 285 284 283 282 281 0 290 288 286 284 282 280 278 0 5 1? 5 WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm 287 WS 5 Yr . Storm g 286 Ground c • 0 Bank Sta 'ji 285 > GI iii 284 283 282 28 1 -1--..,........,........,........,........,........,........,........,...... .................. ....-....-....-....-....-....-....-....-.--1 10 15 20 0 5 10 15 20 Station (ft) Station (ft) wo od creek10 woodcreek10 RS= 1623 Exhibit G-2 RS = 1622 Exhibit G-2 WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta -i'!=====-12 .014·=~==-"'==;::;:i ~-~~-~ Legend .014 1?~ Legend 290 - 10 Station (ft) - - 15 20 WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Y!: Sloon Ground • BMkSta 288 286 g c g 284 m > .9! w 282 280 278 0 5 10 Station (ft) 15 20 WS 100 Yr. Storm WS 50 Yr. Storm WS 25 Yr. Storm WS 10 Yr. Storm WS 5 Yr. Storm Ground • Bank Sta woodcreek10 woodcreek 10 RS = 1622 Exhibit G-2 RS= 1480 Exhibit G-2 290 .1 06 286 06 Legend Legend WS 100 Yr. Storm WS 100 Yr. Storm 288 WS 50 Yr. Storm WS 50 Yr. Storm 284 WS 25 Yr. Storm WS 25 Yr. Storm 286 WS 10 Yr. Storm WS 10 Yr. Storm g WS 5 Yr. Storm € 282 WS 5 Yr. Storm c 284 Ground c Ground ~ • 0 • Bank Sta :;; Bank Sta > 282 > Q) Q) 280 iii iii 280 278 278 276 276 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 Station (ft) Station (ft) woodcreek10 wood creek 10 RS= 1267 Exhibit G-2 RS= 967 Exhibit G-2 282 .12 •I• 06 12 280 12---+k .06 .1 Legend Legend ws 100 Yr. Storm WS 100 Yr. Storm WS 50 Yr. Storm 278 WS 50 Yr. Storm 280 WS 25 Yr. Stonn WS 25 Yr. Storm WS 10 Yr. Storm WS 10 Yr. Stonn g WS 5 Yr. Storm € 276 WS 5 Yr. Storm c Ground c Ground i 278 • 0 • Bank Sta :; Bank Sta > > .!! Q) 274 w iii 276 272 274 270 10 15 20 25 30 35 40 45 50 55 0 20 40 60 80 100 Station (ft) Station (ft) woodcreek10 RS = 805 Exhibit G-2 275 06 Legend WS 100 Yr. Storm 274 WS 50Yr. Storm WS 25 Yr. Storm 273 WS 10Yr. Storm g WS 5 Yr. Storm c Ground ,g 272 • ftl Bank Sta > .!! w 271 270 269 0 10 20 30 40 50 60 70 Station (ft) woodcreek10 woodcreek1 O RS = 760 Exhibit G-2 RS= 700 Exhibit G-2 .12 274 06 275 Legend Legend ws 100 Yr. Storm ws 100 Yr. Storm 274 ws 50 Yr. Storm 273 WS 50 Yr. Storm ws 25 Yr. Storm ws 25 Yr. Storm ws 10 Yr. Storm WS 10 Yr. Storm g 273 WS 5 Yr. Storm g 272 WS 5 Yr. Storm c Ground c Ground :8 • 0 • I'll BankSta :; Bank Sta > > j! 272 j! 271 w w 271 270 270 269 0 20 40 60 80 0 20 40 60 80 100 Station (ft) Station (ft) i ••••••••••••••••••••••••••••••• •••••••••• n.QOD RYDROGAAPH PJICXAGE (HEC-1) SEPTDIBER 1990 VERSION 4. 0 RUN DATE 09/22/1998 TIME 10: 07: 06 • ......................................... EXHIBIT "G-3" x x xxxxxxx xxxxx x x xx x x xx x x x x x xxxxxxx xxxx x xxxxx x x x x x x x x x x x x xxxxxxx xxxxx x x xxx ........................................ U.S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET DAVIS, CJ\LIFORNIA 95616 (916) 756-1104 THIS PROGAAK REPIJ\CES JILL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HECl (JI\N 73), HEClGS, HEClDB, 1\ND HEClKW . THE 0£l'INITIONS OF VARIABLES -RTIMP-AND -RTIOR-HAVE CHANGED FRCM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKK-ON RM-CARD 11AS CHANGED WITH REVISIONS DP.TED 28 SEP Bl. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: D1.KBR£AK OUTFLOll SU!lKERGENCE / SINGLE EVENT lll\KAGE CALCULATION, DSS:WRlTE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVl\L LOSS RATE:GREEN AND l\MPT INFILTRATION KI!IDO\.TIC llAVE: NEW FINITE DIFFERENCE ALGORITllK LINE 1 2 5 6 9 10 11 12 1 3 14 1 5 16 17 18 19 20 21 22 23 24 2 5 26 . 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 LINE l!EC-1 INPUT IO ••.•.•• 1. ••.•.• 2 ••.••.. 3., ••..• 4 ••••••• 5 ••••.•• 6 ••••••• 7 ••••••• B ••••••. 9 •••••• 10 ID WOODCREEK SECTION 10 IT 3 01F£899 0000 IO 5 0 0 JR PREC 11 9. B 2320 .0194 1 KK BA PB IN PC PC PC PC PC LS UD 30 01F£B98 .0053 .0712 .2042 • 9676 .9588 0 .20 KK L2320 RS 1 RC 0 .12 RX 975 RY 107 KK BA LS UD 1914 .0094 0 .17 !11< Cl914 HC 2 KK Ll914 RS 1 RC 0 .12 RX 975 RY 107 KK BA LS 1672 .0015 UD .06 KK Cl672 HC 2 Kl( Ll612 RS l RC 0 .12 RX 975 RY 107 .0109 .0797 .2351 .8901 .9653 76 FLOW .06 995 106 76 FLOlf .06 995 106 76 FLOW .06 985 1 06 0000 • 0164 .0897 .2833 .89l4 .9717 0 -1 0.12 995 105 0 0.12 995 105 0 0 0.12 995 105 720 8.9 .0223 .0994 .6632 .9019 .9777 406 1000 100 242 1000 100 49 1000 100 7.4 .0294 .1099 .7351 .9115 .9936 .0079 1004 100 .004 1004 100 .002 1004 100 HEC-1 INPUT 6.2 • 0347 .1203 . 7724 .9206 .9892 1009 105 1009 105 1009 105 4.5 .0414 .1329 • 7989 .9291 .9947 1019 106 1019 106 1019 106 .0483 .1467 .8197 .9371 1.000 ,1029 j ·101 1029 107 1029 1 07 .0555 .1625 .8390 .9446 .0632 .1808 .8538 .9519 ID ......• 1. .••.•. 2 .....•• 3 ••.•.•. 4 •.•..•• 5 .••.••. 6 .••..•. 7 •.••••• 8 ....... 9 ••...• 10 PAGE PAGE EXHIBIT ''G-3 11 43 JO( 1623 44 BA .0076 45 LS 0 76 46 UD • 21 47 JO( Cl623 48 HC 2 49 JO( Ll623 50 RS l FLOW 0 51 RC 0.12 .06 0.12 400 .005 52 RX 975 985 995 1000 1004 1009 53 RY 107 106 105 100 100 105 54 JO( 1276 55 BA .0077 56 LS 0 16 0 57 UD .22 58 JO( C1276 59 HC 2 60 JO( Ll276 61 RS l FLOW 0 62 RC 0.12 .06 0 .12 300 .0036 63 RX 975 985 995 1000 1004 1009 64 RY 107 106 105 100 100 105 6 5 JO( 967 66 BA .0018 61 LS 0 16 0 68 OD • 08 69 JO( C967 10 HC 2 71 JO( L961 72 RS 1 now 0 73 RC 0.12 .06 0.12 162 .0052 14 RX 915 985 995 1000 1004 1009 15 RY 107 106 105 100 100 105 76 JO( 100 17 BA .0221 78 LS 0 16 0 19 UD .4 80 l<K C100 81 HC 2 82 zz i········································· FLOOD llYDROGRAPH PACKAGE (HEC-1) SEPTEMBER 1990 VERSION 4.0 RUN llll.TE 09/22/1998 TIME 10:07:06 • ........•..•.................••.......•.. *** ERROR 3 IO IT WOODCREEK SECTION 10 SPECIFIED START J\llD END lll\TES RESULT IN TOO MllJIY TIME PERIODS OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL !PLOT 0 PLOT CONTROL QSCAL 0 • HYOROGRAPH PLOT SCALE HYDROGRAPH TIME llll.TA lllUN MINUTES IN CCMPUTATION INTERVAL I DATE I TIME NO ND DAT!: NDTIME Ia:NT lFEB98 STARTING DATE 0000 STARTING TIME 300 1FEB98 1451 19 NUMBER OF HYDROGRAPH ORDINATES ENDING lll\TE ENDING TIME CENTURY MARK CCJtPU'tATlON INTERVAL • 05 HOURS TOTAL TIME BAS!: 14. 95 HOURS ENGLISH UNITS DRAINAGE AREA PRECIPITATION DEPTH LENGTH, ELEVATION FLOlf STORAGE VOLUME SURFACE AREA TDfi>ERA TORE SQUARE MILES INCHES FU:T CUBIC FEET PER SECON D ACRE -FEET ACRES DEGREES FAHRENHEI T 1019 1029 106 107 1019 1029 106 101 1019 1029 106 101 •..•.................•................. U.S. ARMY CORPS OF ENGINEERS HYDROLOGIC ENGINEERING CENTER 609 SECOND STREET llll.VIS, CALI FORNlJ\ 95616 (916) 156-1104 . ••.......•.............•.............. EXHIBIT ''G-3 '' JP MULTI -PLAN OPTION NPLNI l NllMBER OF PLANS JR MULTI-RATIO OPTION RATIOS OF PRECIPITATION ll.00 9 .80 8.80 7 .40 6.20 4.50 PEAK FLOll AND STAGE (END-OF-PERIOD) SOHl!ARY FOR MULTIPLE PI.NI-RATIO ECONCMIC CCMPUTATIONS FLOllS IN CUBIC FEET PER SECOND, AREA IN SQUARE MILES TIME TO PEAK IN HOURS RATIOS APPLIED TO PRECIPITATION OPERATION STATION AREA PLAN RATIO l RATIO 2 RATIO 3 RATIO 4 RATIO 5 RATIO 6 11.00 9.80 8.8 0 7.40 6.20 4 .50 HYDROGRAPH AT 2320 • 02 FLOll 99 • 86. 75 . 60. 47. 29. TIME 11.55 11.55 11.55 11.55 11.55 11.55 ROUTED TO L2320 • 02 FLOll 98 • 85. 74. 59. 46. 29. TIME 11.55 11.55 11.55 11.60 11.60 11.60 PEAK STAGES IN FEET STl\GE 103.69 103. 43 103.20 102 .84 102.50 101. 92 TIME 11.55 11.55 11.55 11.60 11. 60 ll.60 HYDROGRAPB Al' + 1914 .01 FLOll 44 . 38. 33. 21. 21. 13. TIME ll.55 11.55 11.55 11.55 11.55 11.55 2 CXMBINED AT + Cl914 .03 FLOW 142 . 124 . 108 . 86. 67. 41. TIME 11.55 11.55 11.55 ll.55 11.55 11.60 ROUTED TO + Ll914 • 03 FLOW 142 • 123. 107. 85. 67. 41. TIME 11.55 11.55 11.55 11. 60 11. 60 11.60 PEAK STAGES IN FEET STl\GE 105.17 104. 86 104.55 104. 07 103 .60 102. 80 TIME 11.55 11.55 11.55 11.60 11.60 11.60 HYDROGRAPH AT + 1672 • 00 FLOll 8. 1 . 6 . 5. 4. 3. TIME 11.50 ll.50 11.50 11.50 11.50 11.50 2 Cafi!INED Al' + C1672 .03 FLOW 148. 129. 112. 89. 69. 42. TIME 11.55 11.55 11.55 11.55 11.55 11. 60 ROUTED TO + Ll672 .03 FLOW 148. 128. 112. 89. 69 . 42. TIME ll.55 11.55 11.55 ll.55 11.55 11. 60 PEAK STAGES IN FEET STAGE 106.01 105.69 105.40 104.91 . 104.36 103.40 TIME 11.55 11.55 ll.55 11.5!¥" 11.55 11.60 HYDROGRAPH AT + 1623 .01 FI.Oii 38. 33. 29. 23. 18 . 11. TIME 11.55 11.55 11.55 11.55 11.55 11.55 Cl>IBINED AT + Cl623 .04 FLON 186. 162. 141. ll2. 87. 53. TIME 11.55 11.55 11.55 11.55 11.55 ii. 60 ' ROOTED TO + L1623 • 04 FLOll 185. 160. 140 . 111. 87 • 53. TIME 11.60 11.60 11.60 11.60 11. 60 11. 60 PEAK STAGES IN FEET STAGE 105.49 105.20 104. 90 104 .39 103.88 103.02 TIME 11.60 11. 60 11.60 11.60 11. 60 11. 60 HYDROGRAPH AT + 1276 • 01 FLOW 38. 33. 2 9. 23. 18 . 11. TIME 11.55 11.55 11. 55 11.55 11.55 11. 60 2 Cafi!INED AT + Cl276 • 04 FLON 223. 193 . 169 . 134 • 105. 64. TIME 11. 60 11. 60 11. 60 11.60 11.60 11.60 ROUTED TO Ll27 6 • 04 FLON 222. 192. 168 . 134. 1 04. 63. TIME 11. 60 11. 60 11. 60 11. 60 11.60 11. 65 PEAK STAGES IN FEET STAGE 106.26 105.94 105 .64 105.17 104.61 103.60 TIME 11. 60 11. 60 11 .60 11.60 11.60 11. 65 EXHIBIT ''G-3'' HYDROGAAPH AT + 967 .co FLOW 10. 9. 8. 6. 5. 3. TIME 11 .50 11.50 11.50 11.50 11.50 11.50 2 CCMBINED AT + C967 .05 FLOll 228. 198. 173. 137. 107. 65. TIME 11.60 11.60 11.60 11.60 11.60 11.60 ROUTED TO + L967 .05 FLOll 228. 198. 173. 137 . 107. 65. TIME 11.60 11.60 11. 60 11.60 11. 60 11. 65 PEAK STAGES IN FEET STAGE 105.91 105.59 105 .31 104 . 82 104. 26 103 . 32 TIME 11.60 11.60 11.60 11.60 11.60 11.65 HYDROGRAPH AT + 100 .02 FLOW 89 . 77. 67 . 53. 41. 25. TIME 11. 70 11. 70 11. 70 11 . 70 11. 70 11. 75 2 CCMBINED AT C700 .07 FLOll 311 . 269. 235. 186. 146. 89 . TIME 11.65 11.65 11. 65 11.65 11.65 11.65 *** NOP.MAL END OF HEC-1 ••• DEVELOPMENT PERMIT PERMIT NO. 617-R WOODCREEK 10-A -10-B BLOCKS 29-33) FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE : CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: SITE ADDRESS: Woodcreek Section 10-A ,Blocks 29-33 OWNER: T.A.C. Realty-Keith Kuttler, EVP ll ll Briarcrest Drive Bryan, Texas 77802 409-696-5688 DRAINAGE BASIN: Foxfire Tributary TYPE OF DEVELOPMENT: This permit is valid for construction of Woodcreek 10-A -10-B 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 accordance with the plans and specifications submitted to and approved by the Ci ty Engineer in the de elo ent permit application for the above named project and all of the codes and ordinances of the City oll ge Station that apply . Date Contractor Date McCLURE ENGINEERING, INC.------- September 10 , 1998 Ms. Veronica Morgan, P .E . Department of Development Services City of College Station P.O. Bo x 9960 College Station, Texas 77842 ~ t ~~t~ Re: Drainage Report for Woodcreek Subdivision Section lOA & lOB Dear Veronica: With this letter, I would like to address the comments you and Paul Kaspar made on the drainage report we submitted for Woodcreek Subdivision Section IOA & IOB. One of the important factors that we failed to make clear in the report is that Section 1 OA will be constructed before Section 1 OB. Since the drainage systems of both 1 OA and 1 OB influence the same stream, it is necessary to analyze both during the design stages of Section 1 OA. Much of the design for Section 1 OB is in the preliminary stages and is not as easily described. Some of the questions you raised involve the structures in Section 1 OB. Because the design of Phase 1 OB will modify some of the data provided with this report, we will submit a revised report when our design is complete which will supersede this report. Please bear this in mind as I address your questions. Exhibit C-2, Inlet Computations Comment: Wh ere do th ese overflows get picked up ? Into which inle t ? The comment is made in reference to Drainage Areas #13-17. Response: The current design for Section 1 OA does not provide for inlets to pick up these flows. All runoff from Drainage Areas # 11-17 will be picked up by structures in Section 1 OB . Those structures will be shown in the future drainage plans for that section. Exhibit C-3, Hvdrologic and Hydraulic Computations Comment: Should the 13 " pipe shown between Inlet #1 7A and #1 7B be a 12 " pipe? Response: T here is only one inlet that serves Drainage Areas 17 A and 17B. The division line between 17 A and 17B is the centerline of a future cul-de-sac with one inlet (No . 17) installed at the end of the bulb. This is depicted on the Drainage Area Map in Exhibit B. The 13" pipe size shown in the graph is put there to instruct the computer that 17 A and 1 7B are hydraulically connected. It does not actually exist and has no effect on the computations of outflow from that inlet. When we print the phase 1 OB report, we will remo ve this "pipe" from the exhibit . 1722 Broadmoor , Suite 210 • Bryan , Texas 77802 • (409) 776-6700 • FAX (409) 776-6699 • Veronica Morgan, P.E. Woodcreek lOA Drainage Comments September l 0, 1998 Exhibit G-2, Water Surface Elevations from rainfall events in Trib. 3 Page2 Comment No. 1: Does J J 00 on the cross-section match with 0 (zero) on the profile? Response: Yes. The HEC RAS plotting routines plot the profiles using the cumulative channel reach length to locate the section on the profile. So the first section (1100) is shown as station 0+00 and the subsequent section are located at the correct distance upstream of the first. The routine plots a small solid square on the "Ground" profile at that point. If you look closely at the exhibit, the seven squares on the "Ground" profile are located at the seven cross sections. Also note that all water surface data provided is located at the cross sections except between section 1200 and 1500 where we had the computer interpolate cross section in order to set a minimum energy loss between station. Exhibit G-2, Water Surface Elevations from rainfall events in Trib. 3 Comment No. 2: What about analysis of (all) 8 cross-sections all the way through (Section) JOB? Would like to see JOO-yr WSEL as the creek gets close to lots without drainage easements. Response: Since this is part of Section 1 OB , we have not obtained cross-sectional data on that portion of the stream. Therefore, we cannot accurately model the water surface elevations. These will be provided in a supplemental drainage report for Section 1 OB. Exhibit G-3, Water surface elevations at the headwall of the 48" culvert upstream of Woodcreek Drive, RS=J500 Comment: What is this line? I couldn't discern what it represents; it shows up on all cross-sections. The comment is made in regard to the bottom line of the water surface elevations. Response: This line represents the water surface elevation from the 5-year rainfall event. The legend for the graph is not clear. It provides only one line type to represent both the ground surface elevation and the 5-yr water surface elevation. The line types in the legend are described by the text written beneath each line type. With the phase 1 OB report, we will make this clearer. I believe these five comments were the only ones in the report. Ifl have failed to adequately address the questions you raised, please contact me and I will explain them further. Thank you. Sincerely, j;~ ~~~~ell, P.E . Chief Design Engineer F:\9731 \documents\WCDRACOM .WPD DATE: TO: FROM: TRANSMITTAL LETTER McCLURE ENGINEERING, INC. 1722 Broadmoor, Suite 210 Bryan, Texas 77802 (409) 776-6700 Fax : (409) 776-6699 November 23, 1998 Ms. Deborah Grace Development Services Dept. CITY OF COLLEGE STATION Michael R. McClure, P.E., R.P.L.S. PROJECT NAME: WOODCREEK SECTION 10-B COMMENTS: Attached please find six (6) additinal sets of construction plans for the above referenced construction project. Three (3) sets are for the City's files and three (3) sets are to be stamped with City approval and returned to our office for the Contractor's use. Please call when our three sets are ready to be picked up. THANX! File Note I For Additional Documentation On This Project Check In The "CONFIDENTIAL BINDER" Wa~C:s Q_~ \ 10 ~"'\--\6 \\:-\C\~~ DEVELOPMENT PERMIT PERMIT NO. 617 WOODCREEK 10-A -10-B BLOCKS 29-33) FOR AREAS OUTSIDE THE SPECIAL FLOOD HAZARD AREA RE: CHAPTER 13 OF THE COLLEGE STATION CITY CODE SITE LEGAL DESCRIPTION: SITE ADDRESS: Woodcreek Section 10-A ,Blocks 29-33 OWNER: T .A.C. Realty-Keith Kuttler, EVP 1111 Briarcrest Drive Bryan, Texas 77802 409-696-5688 DRAINAGE BASIN: Foxfire Tributary TYPE OF DEVELOPMENT: This permit is .valid for construction of Woodcreek 10-A per approved plans. This permit also covers the clearing and grubbing of Woodcreek 10-B. 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 ereby grant this permit for development of an area outside the special flood hazard area. All elopment shall be in accordance with the plans and specifications submitted to and approved by the i Engineer in the development permit application for the above named project and all of the codes and · ces of Ci~ of College Station that apply. Date \c;>( \5\ 4.~ Contractor Date " ~· . . Figure Xll Development Permit City of College Station, Texas SiteLegalDescription : Woodcreek Section 10 Block 29, 30, 31, 32, 33. Site Owner: T.A.C. Realty, Inc. Architect/ Engineer : McClure Engineering Contractor: Madison Construction Corp. Date Application Filed : __ l~O /~8~/_9_8 ___ _ Address : 1111 Briarcrest Drive, Bryan,TX Tdephone: 409/ 696-5688 Address: 172 2 Broadmoor-Bryan, TX Telephone No : 409/776-6700 Address : 1640 Briarcrest-Bryan, TX Telephone No : 409/268-5520 Approved : ___________ _ Application is hereby made for the following development specific waterway alterations : 0 Application Fee 0 Signed Certifications 0 Drainage and erosion control plan, with supporting Drainage Report two (2) copies each. 0 Site and Construction Plans, with supporting Drainage Report two (2) copies each . 0 Other: -------------------------------- ACKNOWLEDGMENTS: I, Keith H. Kut tler, E.V.P. , ~wner, hereby acknowledge or affirm that : The information and conclusions contained in the above plans and supporting documents 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 permit application, I agree to construct the improvements proposed in this application according to these documents and the requirements of Chapter 13 of th ~ _;?liege Station City Code. Q (i\!\;\ ~ (} ?~) /?vf? ~~~~~-,~~__.::::::_ __ Property Owner(s) T.A.C. Rea1ty, Inc. Contractor Madison Construction Corp. -~·~~-1' -• . . .... .. •. Figure XH Continued CERTrFlCATlONS : (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 application is designated to prevent damage to the structure or its contents as a res ult 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, proposed as part of this application is at or above the ba se flood elevation established in the latest Federal Insurance Administration Flood Hazard Study and maps, as amended. Engineer Date C. · I, Michael R. McClure, P .E. • certify that the alterations or development covered by this permit shall not diminish the flood-canying capacity of the waterway adjoining or crossing this permitted site and that such alte~•1doprrient are consistent with requirements of ·the City of College Station City r ~~~~ onceming encroachments offloodways and of ~ .. * .. U'. floodway fringes . ;'-J •• • ••• "l '-* •• • •• , '-• • * n ~d 1 ~·~·c~iAe'L'R'.M~ci:Qfi~:J 101t~ /"13 ~ 1'0·."·~"32740':/gj~-a-te_/_' _____________ _ ~ 0 •.-.r~-~v. ~ ~ 't A' "•'o:G/STE.'?-.~" ~ ~,~s ········· .. ~F~-I, \ ~ ti'<trlf at the proposed alterations do not raise the level of the I 00 year flood above elevation esta 1shed in the latest Federal Insurance Administration Flood Hazard Study. Engineer Date Conditions or comments as part of approval : -------------------- 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. AJI development shall be in -accordance w ith the plans and specifications submitted to and approved by the City Engineer for the above named project. All of the applicable codes and ordinances of the City of College Station shall apply. t.w' ••• ...,, .... DATE: TO: FROM: TRANSMITTAL LETTER MCCLURE ENGINEERING , INC. 1722 Broadmoor, Suite 210 Bryan , Texas 77802 (409) 776-6700 Fax: (409) 776-6699 October 13, 1998 Mrs. Veronica Morgan, P.E. Assistant City Engineer CITY OF COLLEGE STATION Michael R. McClure, P.E., R.P.L.S. PROJECT NAME: Woodcreek Section lOA and Section lOB COMMENTS: Per your r equest, attached please find two (2) prints each of Sheet No. 1 o f 14 from the Section 1 OA plans and Sheet No. 1 of 17 from the Section 1 OB plans . DATE: TO: FROM: TRANSMITTAL LETTER MCCLURE ENGINEERING, INC. September 2, 1998 Mr. Paul Kaspar I 7 2 2 BROADMOOR, SUITE 2 I 0 BRYAN , TEXAS 77802 (409) 776-6700 FAX : (409) 776-6699 Development Services Department CITY OF COLLEGE STATION Michael R. McClure, P.E., R.P.L.S. PROJECT NAME: WOODCREEK SECTION 1 OA COMMENTS: Attached please find the City Staff red-lined construction plans and seven (7) sets of revised construction plans. Also attached are two (2) copies of the Engineer's Construction Cost Estimate. ::m:stJ.i11 · gr;; Rsu• : t B !lisiour Please call when three (3) sets of the construction plans have been stamped with City approval and I will pick them up. D ro..;~ ~ ee P~"+ r-e 5 p~f'\Sta w: 1\ b~ de..l;vu-e.J uf\ct~~ s~o..-t~ ~vt:. r. DATE: TO: FROM: TRANSMITTAL LETT ER MCCLURE ENGINEERING, INC. I 722 BROADMOOR , SUITE 2 I 0 BRYAN , TEXAS 77802 (409) 776-6700 FAX : (409) 776-6699 September 30, 1998 Mrs. Veronica M organ, P.E. Assistant City Engineer CITY O F COLLEGE STATION Michael R. McClure, P.E., R.P.L.S. PRO JECT NAME: WOODCREEK SECTION 10-A AND 10-B COMMENTS: Attached please find two (2) copies of the Drainage Report for Woodcreek Section 10-A and 10-B, originally submitted July, 1998 and Revised September, 1998. PLEASE MAKE SURE THAT THE JULY, 1998 REPORTS ARE REMOVED FROM YOUR FILES AND DESTROYED. ITEM NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 ENGINEER'S CONSTRUCTION COST ESTIMATE WOODCREEK, SECTION 10-A AUGUST 28, 1998 DESCRIPTION UNIT QUAN. UNIT PRICE STREET CONSTRUCTION Clearing & Grubbing (RO.W.'s, Easements & Common Areas Acre 4 $1 ,500.00 Roadway E xcavation C .Y. 5,796 3.50 6" Lime Stabilized Subgrade (6% Lime) S.Y . 7,598 2 .75 Extra Lime Ton 52 90.00 6" Flexible Base Crushed Stone S .Y . 4,762 5.75 7" Flexible Base Crushed Stone S .Y . 1,505 6 .85 1 W' Hot Mix Asphaltic Concrete (Type "D") S .Y . 6,267 5 .50 Reinforced Concrete Curb & Gutter {Type 1) L.F. 643 7.50 Reinforced Concrete Curb & Gutter (Type 3) L.F. 3,029 7 .50 Reinforced Concrete Sidewalk (4" thick) S.F . 6,738 2 .50 Reinforced Concrete Aprons (6" thick) S.F. 609 3.50 Concrete Ambulatory Ramps (Colored & Reinforced) S.F. 249 3.50 Cellulose Fiber Mulch Seeding S .Y . 7,500 0.50 Construction Exit Each 1 18.00 Straw Bale Barriers Per Bale 6 20.00 Silt Fence L.F. 405 3.00 Inlet Protection Each 10 100 .00 Type ill Barricades L.F. 60 25 .00 Street Construction Subtotal DRAINAGE CONSTRUCTION 12" RCP (C-76, Cl. III) L.F. 74 16.00 15" RCP (C-76, Cl. III) L.F. 21 24.00 21" RCP (C-76 , Cl. III) L.F . 26 30 .00 24" RCP (C-76, Cl. lll) L.F. 31 35 .00 27" RCP (C-76, Cl. III) L.F. 39 45 .00 30" RCP (C-76, Cl. III) L.F. 73 52 .00 36" RCP (C-76, Cl. III) L.F. 34 72 .00 48" RCP (C-76 , Cl. Ill) L.F. 140 100 .00 12" RCP Sloped Headwall Each 4 300.00 15" RCP Sloped Headwall Each 2 450.00 21" RCP Sloped Headwall Each 2 650 .00 30" RCP Sloped Headwall Each l 750 .00 48" RCP Sloped Headwall Each 2 900 .00 12" X 45 ° RCP Bend Each 2 150 .00 48" X 45 ° RCP Bend Each 2 750 .00 AMOUNT $6,000.00 20,286.00 20,894.50 4 ,680.00 2 7,381.50 10 ,309.25 34,468.50 4 ,822.50 22,717.50 16 ,845.00 2 ,131.50 871.50 3 ,750.00 18 .00 12 0 .00 1,215.00 1,000.00 1,500.00 $179,010.75 1,184.00 504.00 780.00 1,085 .00 1,755 .00 3,796.00 2,448.00 14 ,000 .00 1,200.00 900 .00 1,300.00 750.00 1,800.00 300 .00 1,500 .00 ENGINEER'S CONSTRUCTION COST ESTIMATE WOODCREEK, SECTION 10-A AUGUST 28, 1998 ITEM NO. DESCRIPTION 34 4" Reinforced Concrete Flume & Spillway 35 Dry Riprap Charuiel Lining on Fabric 36 Remove & Relay existing 36" RCP 37 5' Standard Recessed Inlet 38 10' Standard Recessed Inlet 39 I5' Standard Recessed Inlet 40 Standard Reinforced Concrete Junction Box Draina2e Construction Subtotal WATER LINE CONSTRUCTION 41 6" PVC Pipe (C900, Cl. 200) 42 12" PVC Pipe (C900, Cl. 200) 43 Fire Hydrant Assembly (Type II) 44 2" Blow-off Assembly with 6" Cap 45 2" Blow-off Assembly with I2" Cap 46 Remove Existing Blow-off & Connect to 12" Line 47 6" MJ. Gate Valve 48 I2" M.J. Gate Valve 49 I2" X I3" M .J. Anchor Coupling 50 I2" X 6 " M.J. Tee 51 6" X I 3" M .J . Anchor Coupling 52 6" X 6" M .J . Tee 53 Trench Safety 54 I W ' Type K Copper Service (42' Avg. Length) 55 I" Type K Copper Service (30' Avg. Length) Water Line Subtotal SEWER LINE CONSTRUCTION 56 6" PVC Pipe (D-3034, < 6' Depth) 57 6" PVC Pipe (D-3034, 6' to 8' Depth) 58 6" PVC Pipe (D-3034 , 8' to 10' Depth) 59 6" PVC Pipe (D-2241 , 8' to 10' Depth) 60 Connect to Existing Sewer Manhole 61 Standard Manhole (6' to 8' Depth) 62 Standard Manhole (8' to I I ' Depth) ~ "''' _... ''"' 63 Type I Service (37' Avg. Length) -~--<:~} •F tlrii'lh. ~' ~ ~=c~ ~;~ce (56' Avg. Length) £0~~ ~~I. VJ ~t"'''''"'"""''": .. ~ .. I Sewer Line Subtotal • ~ .. f!1.l.9.~.~.~.~.B ·.M9 ~h~RL r _· -... ,..,__ ..... "· . ~. UNIT S.F . S.Y. L.F. Each Each Each Each L.F. L.F. Each Each Each Each Each Each Each Each Each E a ch L.F. Each Each L.F. L.F. L.F. L.F. L.S. Each Each Each Each L.F. QUAN. 566 177 16 2 4 l l I ,64I 382 2 3 I I 5 I I 1 5 2 1,400 7 2 45 765 548 20 1 6 1 9 6 I ,348 UNIT PRICE 4 .00 25 .00 50.00 2 ,000.00 3,000.00 3,500 .00 4 ,000 .00 $I5.00 26.00 1,850.00 450.00 550.00 350.00 400.00 1,350.00 185 .00 310.00 85 .00 2 75 .00 1.00 650 .00 325.00 $13 .00 15 .00 I6.00 16 .2 5 500 .00 I ,200.00 1,300.00 775 .00 850.00 1.00 AMOUNT 2,264 .00 4 ,42 5 .00 800.00 4 ,000 .00 12,000.00 3,500.00 4,000.00 $64,2 91.00 $24,615 .00 9,93 2 .00 3,700.00 1,350.00 550 .00 350.00 2,000 .00 I ,350.00 185.00 3 I0.00 42 5.00 5 50 .00 I ,400 .00 4 ,55 0 .00 650.00 $51 ,917.00 $585.00 11,475.00 8,768.00 325.00 500.00 7,2 00.00 1,3 00 .00 6 ,975 .00 5,100 .00 1,348 .00 $43 ,576 .00 $338, 794. 75 THIS FORM REPLACES PREVIOUS FORM 3510-S (8-98) Form Approved. OMB No. 2040-0188 See Reverse for Instructions ·&EPA .. -~~ . . · United States Environmefltal Protectioi-Agency NPDES Washington , DC 20460 FORM Notice of Intent (NOi) for Storm Water Discharges Associated wtth CONSTRUCTION ACTIVITY Under a NPDES General Permit Submission of this Notice of Intent constitutes . notice that the party Identified in Section I of this form Intends to be authorized by a NPOES permit Issued for storm water discharges associated with construction activity In the State/Indian Country Land Identified In Section II of this form. Submission of this Notic e of Intent also constitutes notice that the party Identified In Section I of this form mHts the eligibility requirements In Part 1.a of th8 general permit (includi ng those related to protection of endangered species determi ned through the procedures In Addendum A of the general pennlt), Lllderstands that continued authorization to discharge Is contlligent on malntalnlng permit ellglblllty, and that implementation of the Storm Water Pollution Pf'8ll8ntlon Plan required uncle Part IV of the general permit will begin at the time the pennlttee commences work on the construction project Identified In Seclon II below. IN ORDER TO OBTAIN AUTHORIZATION, ALL INFORMATION REQUESTED MUST BE INCLUDED ON THIS FORM . SEE INSTRUCTIONS ON BACK OF FORM . I. Owner/Operator (Applicant) Information Name: I T1 .1 ~1-1C 1 ·I 1~1~1 Pt 1 1..1T 1 '<1 I} 1 ~1 C.1 ·I I I I I I I I I I I I Phon e: 14101~!11"\1 "21l1l 1 \1 11 Address: I \1\ 1\ 1\ I 1'B 1B1\ 1h 1B.1C.1R1e 1S1T 1 1b 1\\1 . I 1S 1U1\ 1T161 1'31010 1 I I I Status of ~ Owner/Operator. l> · City: l~Rt~1~1~1 I I I I I I I I I I I . -I I I I I I State : [LfLJ Zip Code : l!l 1~ I ~I Oj'2.1 -1 I I I I 11. Project/Site Information Is the faci lity located on Indian Country Lands? · Project Name : IW10 ID!'> l ~l:&li lt l~I 1S1e1c.rr 1 ~ 10 1"1 IT 1 ~1 \.l1 I I I I I I I I I Yes O No IKJ Project Address/Locati on :!~ IT'I trl'T'i Ei I 1 \'r 1 ~'\1 l ~I 1t\1. I 101§;1 '°"'~1 c.1 ~1 i~ 1~1 tt I ~ ~I ~ E1 ~- City: IC.10 1 L 1 li.1 ~1 ~1 ~1 1SIT1 ~1 T1 ~I ~ l tl l I I I I I I I I State : II.lXJ Zip Code: I ~ I ~ 1 2>1 ~ 1S-1-1 I I I I 0 I ,, • I ii l\. Latitude: 1 310 1 315 1 ~19 I E.. Longitude: IC\1,1 II 1'3 131SI County: l !l@.1 ~1 J.iOtS1 I I I I I I I I I I I I I Has the Storm water Pollution Prevention Plan (SWPPP) been prepared? Yes IX! No0 Optional: Address of location of IXJ Address In Section I above 0 Address In Section II above D Other address Of known) below: SWPPP for viewing -- SWPP P Phone : Address : I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I City: I I I I I I I I I I I I I I I I I I I I I I I State : l...LJ ZipCode: I I I I I 1-1 I I I I Name of Receiving Water: IE101x 1r 1' 1P..rE1 1T1R1 \1 et1 1C.1 h "1T 16'1!,!S 1 1 !..1"-'~ . I ~ 101 a 1~l l 1'\1C\1f)I I A181 Q1 l I l 1~R RI Based on Instruction provided In Addendum A of the permit. are Month Day ltler Month Day MNit' there any Usted endangered or threatened species, or designated Estimated Construction Start Date Estimated Completion Date critical habitat In the project area? Estimate of area to be distufbed (to nearest acre): I I I I I 16 1 YesO No 181 Estimate of Likelihood of Discharge (choose only one): I have satisfied permit eligibility with regard to protection of 1. [j Unlikely endangered species through the lndcated section of Part l.B.3.e.(2) 3 . D Ol1Ce per week s. D Continual of the permit (check one or more booces): .2. ~ OnCe per month 4 . D 0nee per day <a>D Cb> D ·cc> D <d)D Ill.~ I certify &mer penalty of law that this document and all attachments were prepared &mer my direction or supervision In aocordance with a system designed to assure that qualified personnel property gather and evaluate the lnfo.'11\811on submitted. Based on my Inquiry of the person or persons who manage this system , or those persons dreclly l'8SpOnSible for gathering the Information, the lnfonnatlon submitted Is, to the best of my knowledge and belief, trUe, accurat_e,_and Complete. I am aware that there are significant penaltieS for sUbmitling false Information, Including the posslbilitS' of fine and imprisonment for knowing violations. =diliQ1 1l'll l .1 l.1 E 1 S~ ~ I I I I I I I I I I I I I I Date : I l 10 I 0 1S1~1 8I EPA Form 3510-9 replaced 3510-6 (8 -98) &EPA · Instructions -EPA Fonn 3510-9 Form Approved. OMB No. 2040-0188 NoUce of Intent (NOi) for Storm Water Discharges Associated with Construction Activity to be Covered Under a NPDES Permit · Who Must Ale • Notice of 1.ntent Form . . . . Under the prOvlSions of the Clean Water Act, as amended, (33 U.S.C. 1251 et.seq;; the Act), except as provl®d by Part 1.B.3 the pennit, Federal law prohibits clscharges of pollutants in stonn water fr"fTI construction activities ~a Nallonal Polutant Discharge Eliminalion System Permit Operator(s) · of construction sites where 5 or more acres are disturbed, smaller sites that are part of a larger common plan of development or sale where there is a . cunulalive disturbance of at least 5 acres, or any site designated by the Director, must submit an NOi to obtain coverage under an NPDES Storm Water Construction General Permit. If you have questions about whether you need a permit under the NPDES Stonn Water program, or if you need information as to whether a particular program is administered b y EPA or a State agency, write to or telephone the Notice of intent Processing Center at (703) 931-3230. Where to Ale NOi Fonn NOls must be sent to the following address : Storm Water Notice of Intent (4203) USE PA 401 M. Street, SW . washlngton, D.C. 20460 Do not send Storm Water Pollution Prevention Plans (SWPPPs) to the above address. For ovemighVexpress delivery of NOls, please include the room number 2104 Northeast Mall and phone number (202) 260-9541 in the address. When to Fiie This form must be file({ at least 48 ho~rs before constructi on begins. Completing the Form OBTAIN AND READ A COPY OF THE APPROPRIATE EPA SlORM WATER CONSTRUCTION GENERAL PERMIT FOR YOUR AREA. To complete this torm, type or print, using uppercase letters, in the appropriate areas only. · Please place each character between the marks (abbreviate if necessary to stay within the number of characters allowed for each item). Use one space for breaks between words, but not tor punctuation marks unless they are needed to clarify your response. If you have any questiors on this form, call the Notice of Intent Processing Center at (703) 931-3230. Section I. Facility Owner/Operator (Applicant) Information Provide the legal ·name , mailing address, and telephone number of the person, firm, public organization, or ~y other entity that mee.t either of the following two criteria: (1) they have operational control over constructi<>h plans and specifications, including the ability to make modifications to,thOse plans and specifications; or (2) they have the day-to-day operational control of thoae aclMles al fl8 project necessary to en5l68 C001>iiana with SWPPP requirements or other permit conditions. Each person that meets either of these criteria must me this form. Do not use a colloquial name. Correspon- dence for the permit wi1 be sent to this address. Enter the appropriate 19tter to indicate the legal status of the owner/operator of the project: F,,. Federal; S =State; M =Public (other than federal or state); P • Private. Section IL Project/Site Information Enter the ofllcla1 or legal name and complete street address, including ci:f, county, state, zip code, and phone number of the project or site. If It lacks a street address, inclcate with a general statement the location of the site (e.g., Intersection of Stale Highways 61 and 34). Complete site information must be provided for permit coverage to be granted. Thfl .. opllcant must also provide the latitude and longitUde of the facility In deg1d8S, minutes, and seconds to the nearest 15 seconds. The latitude and lor9hJde of yow facility can be located on USGS quadrangle maps. Quadrangle maps can be obtained by calHng 1-800 USA MAPS. Longitude and latl:ude may also be obtained at the Census Bureau Internet site: http://www.census.gov/cgi-bil'Vgazetteer. U\titude and longitude for a facihty in decimal form must be converted to degrees, minutes and seconds for proper entry on tt.: NOi form. To convert decimal latitude or longitude to degrees, minutes, and seconds, follow the steps In the following·examj:>le. .. Convert decimal latitude 45.1234567 to degrees, minutes, and secoOds . 1) The numbers to the left of the decimal point are degrees. 2) To obtain minutes, multiply the first four numbers to the right of the decimal point by 0 .006. 1234 x .006 = 7.404 .. 3) The numbers to the left of the decimal point in the result obtained in step 2 are the minutes: 7'. . . 4) To obtain seconds, multiply the remaining three numbers to the right of the declmal1rom the result in step 2 by 0.06: 404 x 0.06 • 24.24. Since the numbers to the right of the decimal point are not used, the result is 24". 5) The conversion for 45. 1234 = 45° 7' 24 •. Indicate whether the p roj ect is on Indian Country Lands. Indicate if the Stonn Water Pollution Prevention Plan (SWPPP) has been developed. Refer to Part IV of the general permit for informalbn on SWPPPs. To be eligible for coverage, a SWPPP must have been prepared. Optional: Provide the address and phone number where the SWPPP can .be viewed if different frotn ~ddresses previously given. Check appropriate box. Enter the name of the closest water body which receives the proj act's construction stonn water discharge. · Enter the estimated construction start and completion dates using tour digits for the year (i.e. 05127/1998). Enter the estimated ~rea to be disturbed including but not limited t o : . grubbing, excavation, grading, and utilities and infrastructure installation. Indicate to the nearest acre; if less. than 1 acre, enter •1: Note: 1 acre = 43,560 sq: ft . . Indicate your best estimate of the likelihood of stonn .waterdischarges from the project EPA recognizes that actual discharges may differ from this estimate due to unfoi'eseen or chance circumstances. Indicate if there are any listed endangered or threateiled species, or designated critical habitat in the project area. Indicate which Part of the pennit that the applicant is eligible with regard to protection of endangered or threatened species, or designated critical habitat. Section Ill. Certification Federal Statutes provide for severe penalties for submitting false information on this application form. Federal regulations require this application to be signed as follows : For a corporation: by a responsible corporate officer, which means: (i) president, secretary, treasurer, or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision ~ng functions, or (D) .the manager of .one or more manufactutlng, production, or operating facilities employlilg more than 250 persons or having gross annual sales or expenditures exceedng $25 million fin second-quarter 1980 dollars), if authority to sign doclrnents has been assigned or delegated to the manager in accordance with corporate procedures; For a partnership or sole proprietorsnp: by a general partneDf the proprietor, or For a municipality, state, federal, or other public facility: by either a principal executive or ranking elected official. An unsigned or oodated NOi form will not be granted permit coverage. Paperwork Reduction Act Notice Public reporting burden for this application is estimated to average 3.7 hour-3. This estimate includes time for reviewing Instructions, seP·"i*lg existing data sources, gathering and maintaining the data needed, and completing and revlewir.g the collection of information. An agency may not conduct or sponsor, and a person is not required to respond to. a collection of information unless it displays a ~tty valid OMB control number. Send comments regarding the burden estimate, any other aspect of the collection of information, or suggestions for improving this form, including · · any suggestions which may increase or reduce this burden to: Di rector, OPPE Regulatory Information Division (2137), U.S. Environmental Protection Agency, 401 M Street, SW, Washington,. D.C. 20460: lncllKle the OMB control number on any correspondence. Do not send the completed form to this address. . :1 ('- Cl> !! .,, Cl> ~ Cl> > Cl> .. G> .;; c 0 "CJ G> Cii a. E 0 0 .. ::J 0 >- ..!! SENDER: I also wish to receive the •Complete Items 1 and/or 2 for addi~ional services . •Complete items 3, 4a, and 4b • •Print your name and address on the reverse of this form so that we can return this foll owing services (for an extra fee): cV card to you. •Attach this form to the front of the mailpiec:e, or on the back if space does not 1. 0 Addressee's Address 0 ~ permit. •Write •Return Receipt Requested• on the mailpiec:e below the article number. •The Return Receipt will show to whom the article was delivered and the date 2 , 0 Restricted Delivery G> en delivered. Consult postm aster for fee . a. a; 0 G> a: 3 . Arti cl e Addressed to: Storm Water Noti c e o f Intent USEPA 40 1 M Street SW Washington D.C. 204 60 4a Article Nu mbe r 4b . Service Type D Registered rx Certified D Express Mail 2C] Insured D Return Rece ipt for Merchandise 0 COD 7. Date of Delivery E : ::J Cii a: 0) c a; ::J .. 0 -::J 5. Receiv ed By: (Print Name) 8. 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