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 by TRC Engineers, Inc. HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 58 Summary for Pond MH I: MH I to MH 12 [57] Hint: Peaked at 638.08' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 2.250 ac, 29.83% Impervious, Inflow Depth = 7.38" for 100 yr event 12.58 cfs @ 12.21 hrs, Volumes 1.383 af 12.58 cfs @ 12.21 hrs, Volume= 1.383 af, Atten= 0%, Lag= 0.0 min 12.58 cfs @ 12.21 hrs, Volume= 1.383 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 638.08’ @ 12.21 hrs Invert Outlet Devices Device Routing #1 Primary 595.50’ 12.0" Round Culvert L= 91.0' Ke= 0.500 Inlet / Outlet Inverts 595.50' / 594.50' S= 0.0110 '/' n= 0.020 Corrugated PE, corrugated interior Cc= 0.900 Primary OutFlow Max=12.60 cfs @ 12.21 hrs HW=637.94' TW=604.94' (Dynamic Tailwater) ^-1=Culvert (Outlet Controls 12.60 cfs @ 16.04 fps) Pond MH I: MH I to MH 12 Hydrograph I Inflow I j Primary I 12 5B cf L _ 1--------1----- 12.58 i_ _ cfs 12- Inflow Area-2.250 ac Peak Elev=638.08' _l----; l---i. i r - - 4 ‘ ------- Round Culvert ii — 1- — r — -4-----------1 Ti _ ------------ -- t2.0 i•ii m _J_ u 1 _ J _ -i n=u. L-91.0' L_i_J S=0.0110 7 _i _ a _ % % % jwmkTrtitTrn^wnHrnHTTiTTTTTi n rrVmrh 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 Time (hours) m