J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange B_03 01 12 Type III 24-hr 10 yr Rainfall=5.21" Prepared by TRC Engineers, Inc. Printed 3/14/2012 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 31 Summary for Pond MH-3: MH-3 to MH-4 [57] Hint: Peaked at 606.03’ (Flood elevation advised) 0.916 ac, 24.39% Impervious, Inflow Depth = 3.47" for 10 yr event 3.04 cfs@ 12.15 hrs, Volume= 0.265 af 3.04 cfs@ 12.15 hrs, Volume= 0.265 af, Atten= 0%, Lag= 0.0 min 3.04 cfs @ 12.15 hrs, Volume= 0.265 af 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= 606.03' @ 12.13 hrs Device Routing #1 Primary Invert Outlet Devices 603.20' 12.0" Round Culvert L= 50.0' Ke= 0.500 Inlet / Outlet Invert* 603.20' / 602.20' S= 0.0200 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=3.16 cfs @ 12.15 hrs HW=605.90' TW=604.59' (Dynamic Tailwater) ^-1=Culvert (Outlet Controls 3.16 cfs @ 4.02 fps) Pond MH-3: MH-3 to MH-4 Hydrograph ■ Inflow I B Primary | 3.04 c % —2 0 1 2 3 4 5 6 7 '4 4 '4 Inflow Area=0.916 ac Peak Elev=606.03’ LLL-LLii i2.om Round Culvert n=0.02Q LUii L=50.0' : i S=0.0200 V 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)