J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Type III 24-hr 100 yr Rainfall=8.72" Prepared byTRC Engineers, Inc. Printed 3/14/2012 HvdroCAD® 9.1Q s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 61 Summary for Pond MH-D: MH-D to MH12 [57] Hint: Peaked at 609.15' (Flood elevation advised) 7.765 ac, 25.89% Impervious, Inflow Depth = 7.07" for 100 yr event 40.90 cfs @ 12.16 hrs, Volume= 4.573 af 40.90 cfs@ 12.16 hrs, Volume= 4.573 af, Atten=0%, Lag= 0.0 min 40.90 cfs @ 12.16 hrs, Volume= 4.573 af Inflow Area = Inflow = Outflow = Primary = Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 609.15' @ 12.18 hrs Device Routing #1 Invert Outlet Devices Primary 592.70' 30.0" Round Culvert L= 90.0’ Ke= 0.500 Inlet / Outlet lnvert= 592.70' / 591.70’ S= 0.0111 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=40.41 cfs @ 12.16 hrs HW=608.90' TW=605.25' (Dynamic Tailwater) 1=Culvert (Outlet Controls 40.41 cfs @ 8.23 fps) Pond MH-D: MH-D to MH12 Hydrograph —i-------------- 1—I— . r - T - . * _L . an qn r.fs I J —I 1111 ^ nn 40.90 cfs -- % -- —i—i—i—1—i------------------------- i -- 1 I ! 1 1 t Area=7.765 ac Pea k Elev=609.15' i i i i 30.0" _ _l — i • * • i i —■ + —i — i - i i i i i i m Round Guivert — >- - * —i - -t—i— i—• + —»—i — n-0.020 1=90.0' m -- --J - _ S=0i - 0111 7' _ i i _ J : i i . _■ i i , .i, . . 1 2345 I Inflow I I Primary | iJ_1 Inflow __ * i ■r~t~i‘ . L . i •_ J . i—;— : ! ___ i 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) i i i i * i i