J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Prepared by TRC Engineers, Inc. NJ DEP 2-hrNJDEP Rainfall=1.25" Printed 3/14/2012 Page 79 HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH I: MH I to MH 12 [57] Hint: Peaked at 596.49' (Flood elevation advised) Inflow Area 3 Inflow = Outflow = Primary = 2.250 ac, 29.83% Impervious, Inflow Depth = 0.52" for NJDEP event 2.16 cfs @ 1.25 hrs, Volume= 0.098 af 2.16 cfs @ 1.25 hrs, Volume= 0.098 af, Atten= 0%, Lag= 0.0 min 2.16cfs@ 1.25 hrs, Volume3 0.098 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 596.49'@ 1.25 hrs Device Routing #1 Invert Outlet Devices Primary 595.50* 12.0" Round Culvert L= 91.0' Ke= 0.500 Inlet / Outlet Invert3 595.50’ / 594.50’ S= 0.0110 ’/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=2.16 cfs @ 1.25 hrs HW=596.49' TW=593.10' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.16 cfs @ 3.45 fps) Pond MH I: MH I to MH 12 Hydrograph /n I Inflow I j Primary | I o Ifi.rrf 2.16 cfs L . i _ J Peak Elev=596.49' m >XX 12.0" Y, Round Culvert P 3 2 Inflow Area=2.250 ac 4 n=0.020 L=91.0' S=0.0110 V 0 1 2 3 45 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)