J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Type III 24-hr 100 yr Rainfall=8.72" Prepared by TRC Engineers, Inc. Printed 3/14/2012 HydroCAD® 9.10 sI n 06401 © 2009 HydroCAD Software Solutions LLC Page 57 Summary for Pond MH H: MH H to MH I [57] Hint: Peaked at 689.75' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 2.250 ac, 29.83% Impervious, Inflow Depth = 7.38" for 100 yr event 12.58cfs@ 12.21 hrs, Volume= 1.383af 12.58 cfs@ 12.21 hrs, Volume= 1.383 af, Atten= 0%, Lag= 0.0 min 12.58cfs@ 12.21 hrs, Volume= 1.383af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 689.75' @ 12.21 hrs Device Routing #1 Invert Outlet Devices Primary 597.00' 12.0" Round Culvert L= 154.0’ Ke= 0.500 Inlet / Outlet lnvert= 597.00' / 595.50' S= 0.0097 7’ Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=12.59 cfs @ 12.21 hrs HW=689.63' TW=637.94' (Dynamic Tailwater) 1=Culvert (Outlet Controls 12.59 cfs @ 16.04 fps) Pond MH H: MH H to MH I Hydrograph 14 19 58 cfs 13 i i i i i i Inflow Area=2. f —i - -i—r - : . 12-; I Inflow I I Primary | i 250 ac Peak Elev-689.75' 11 % 12.0M 10: % 9 m :• 8: 7: 1 6 L-J 5 % m m Round Culvert n=0.020 _L _ 1_I . L^154.0I 8=0.0097 r 4 3 2 10 1 2 3 4 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 Time (hours)