J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Type III 24-hr 10 yr Rainfall=5.21" Prepared by TRC Engineers, Inc. Printed 3/14/2012 HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 37 Summary for Pond MH I: MH I to MH 12 [57] Hint: Peaked at 605.63' (Flood elevation advised) 2.250 ac, 29.83% Impervious, Inflow Depth = 3.98" for 10 yr event 6.92 cfs @ 12.22 hrs, Volume= 0.747 af 6.92 cfs @ 12.22 hrs, Volumes 0.747 af, Atten=0%, Lag= 0.0 min 6.92 cfs@ 12.22 hrs, Volumes 0.747 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= 605.63' @ 12.21 hrs Device Routing #1 Primary Invert Outlet Devices 595.50' 12.0" Round Culvert 1 = 91.0' Ke= 0.500 Inlet / Outlet Inverts 595.50' / 594.50’ S= 0.0110 ’/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=6.93 cfs @ 12.22 hrs HW=605.60' TW=595.62' (Dynamic Tailwater) ■t-1=Culvert (Outlet Controls 6.93 cfs @ 8.82 fps) Pond MH I: MH I to MH 12 Hydrograph I 6 q? cfs I 6.92 cfs -r1 i ■ Inflow I B Primary | Inflow Area=2.250 ac Peak Elev=605.63’ t % ~ 4 . - 12l .0t " i Round Culvert n=0.020 L=91 0' S-0.0110T wo, mkm, 0 1 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)