J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange B_03 01 12 NJ DEP 2-hr NJDEP Rainfall=1.25" Prepared by TRC Engineers, Inc. HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 68 Summary for Pond MH-2: MH-2 to MH-3 [57] Hint: Peaked at 604.46' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 0.916 ac, 24.39% Impervious, Inflow Depth = 0.37" for NJDEP event 0.75 cfs @ , 1.18 hrs, Volume= 0.028 af 0.75 cfs @ 1.18 hrs, Volume= 0.028 af, Atten= 0%, Lag= 0.0min 0.75 cfs @ 1.18 hrs, Volume= 0.028 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 604.46' @ 1.18 hrs Invert Outlet Devices 604.00' 12.0" Round Culvert L= 34.0' Ke= 0.500 Inlet / Outlet lnvert= 604.00' / 603.20' S= 0.0235 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Device Routing #1 Primary Primary OutFlow Max=0.76 cfs @ 1.18 hrs HW=604.46' TW=603.68' (Dynamic Tailwater) 1=Culvert (Outlet Controls 0.76 cfs @ 3.14 fps) Pond MH-2: MH-2 to MH-3 Hydrograph ■ Inflow B Primary | n 75.r.fsJ o C 75 cfs Inflow Area=0.916 ac Peak Elev=604.46' 12 .0 ’’ 7 0.750.70.65- O/: TI 0.60.55t _ 0.5 - _- Round Culvert 3 0.45- n=0.020 0.4- L=34.0' 8=0,0235/ 0.350.30.25- _i_ 0.20.150.1 mmfmm 0.05- fl­ ip mumpmii 1 2 34 Wmmw 5 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 Tims (hours) |