J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 NJ DEP 2-hrNJDEP Rainfall= 1.25" Printed 3/14/2012 Page 80 Prepared by TRC Engineers, Inc. HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH-11: MH-11 to MH-D [57] Hint: Peaked at 594.04' (Flood elevation advised) forNJDEP event 0.40" Impervious, Inflow Depth = 0.171 af 1.14 hrs, Volume= Lag= 0.0 min 0.171 af,Atten=0%, 1.14 hrs, Volume= 0.171 af 1.14 hrs, Volume= 5.076 ac, 24.87% 4.12 cfs @ 4.12 cfs @ 4.12 cfs @ 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= 594.04' @ 1.16 hrs Invert Outlet Devices Device Routing 592.80' 30.0" Round Culvert L= 7.0' Ke= 0.500 Inlet / Outlet lnvert= 592.80' / 592.70' S= 0.0143 '/’ n= 0.020 Corrugated PE, corrugated interior #1 Primary Cc= 0.900 Primary OutFlow Max=4.07 cfs @ 1.14 hrs HW=594.03’ TW=593.87' (Dynamic Tailwater) ^-1=Culvert (Outlet Controls 4.07 cfs @ 2.47 fps) Pond MH-11: MH-11 to MH-D Hydrograph ZLi 4 1? r.f 12 cfs ■ Inflow I B Primary | P-. Inflow Area=5.076 ac Peak Elev=594.04' !III .................................... 2 2 a ,0 1 2 — r - t - i— i- - - - - - - r —i' 1 30.0 •• Round Culvert 2 T I n-0.020 iiiiiii i L=7.0' r ~ i 7 8 9 10 11 12 13 14 15 18 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) — i T S=0.0143