J_2024 05 09_West Orange Stormwater Management Plan

Type III 24-hr 2 yr Rainfall=3.42" Post Development West Orange C_03 01 12 Prepared by TRC Engineers, Inc. Printed 3/14/2012 Page 11 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond CB 1: CB #1 [57] Hint: Peaked at 578.97' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 14.940 ac, 23.84% Impervious, Inflow Depth = 1.84" for 2 yr event 21.22 cfs@ 12.18 hrs, Volume= 2.295af 21.22 cfs @ 12.18 hrs, Volume= 2.295 af, 21.22 cfs @ 12.18 hrs, Volume= 2.295af Atten=0%, Lag= 0.0min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 578.97' @ 12.18 hrs Invert Outlet Devices 576.00' 24.0" Round Culvert L= 90.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet lnvert= 576.00' / 574.00' S= 0.0222 '/' Cc= 0.900 n= 0.011 580.00’ 100.0* long x 20.0'breadth Broad-Crested Rectangular Weir Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Coef. (English) 2.68 2.70 2.70 2.64 2.63 2.64 2.64 2.63 Device Routing #1 Primary #2 Primary Primary OutFlow Max=21.22 cfs @ 12.18 hrs HW=578.97* TW=0.00’ (Dynamic Tailwater) 1=Culvert (Inlet Controls 21.22 cfs @ 6.75 fps) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) t Pond CB 1: CB #1 Hydrograph I Inflow I j Primary | 21 22 21.22 cfs3 22-1 Inflow Area=14.940 ac 21191817- Peak Elev=578.97' % _ 14f. 13 o 11 10- -t 1 wmmf* 2 3 45 6 78 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)