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 HydroCAD® 9.10 sIn 06401 © 2009 HydroCAD Software Solutions LLC Page 77 Summary for Pond MH G: MH G to MH H [57] Hint: Peaked at 599.37' (Flood elevation advised) Inflow Area = = Inflow = Outflow Primary = 1.267 ac, 31.48% Impervious, Inflow Depth = 0.53" for NJDEP event 0.056 af Volume= 1.22 hrs, 1.43 cfs@ Atten= 0%, Lag= 0.0 min 0.056 af, Volume= 1.22 hrs, 1.43 cfs@ 0.056 af Volume3 1.22 hrs, 1.43 cfs @ Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 599.37' @ 1.22 hrs Device Routing #1 Primary Invert Outlet Devices 598.50’ 12.0" Round Culvert L3 159.0' Ke= 0.500 Inlet / Outlet Invert3 598.50' / 597.50’ S3 0.0063 '/’ Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=1.42 cfs @ 1.22 hrs HW=599.37' TW=598.06' (Dynamic Tailwater) 1=Culvert (Barrel Controls 1.42 cfs @ 2.64 fps) Pond MH G: MH G to MH H Hydrograph “l-- f-I-------!--- !--- 1--- A 1. 43 r.f 43 cfs i i i i i i i I t i i i Peak Elev=599.37' 1 12.0” t <lIIIIIIi: Round Culvert rV Y/ ! n=0.020 5 2 '/y. j I L=159.0' S=0.0063 V nr 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) ■ Inflow | 9 Primary |