J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange B_03 01 12 Prepared by TRC Engineers, Inc. Type III 24-hr 100 yr Rainfall=8.72" Printed 3/14/2012 HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 54 Summary for Pond MH-7: MH-7 to MH-11 [57] Hint: Peaked at 600.68' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 5.076 ac, 24.87% Impervious, Inflow Depth = 6.92" for 100 yr event 29.82 cfs @ 12.14 hrs, Volume= 2.927 af 29.82 cfs @ 12.14 hrs, Volume= 2.927 af, Atten= 0%, Lag= 0.0 min 29.82 cfs @ 12.14 hrs, Volume= 2.927 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 600.68' @ 12.14 hrs Device Routing #1 Primary Invert Outlet Devices 596.50' 30.0" Round Culvert L= 360.0' Ke= 0.500 Inlet / Outlet lnvert= 596.50' / 592.80' S= 0.01037' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=29.80 cfs @ 12.14 hrs HW=600.67' TW=0.00' (Dynamic Tailwater) 1=Culvert (Barrel Controls 29.80 cfs @ 6.07 fps) Pond MH-7: MH-7 to MH-11 Hydrograph i i i I___I___ ----- • ___I ---- i _ J___ '___ I L. _ 1 _ J 82 cl 29.82 cfs 32 30t 28- 26- i I I J _ _ - _ L_ !_ _ 5 18- L _ 1___1 11 14t 12 - i- - 10 - 1' % % m I Inflow Area=5.076 ac Peaktlev=600.68 30.0 Round Culvert n=0.020 , L=360.0 S=0.0103'/' I ---- f - o 18 i ■ Inflow I B Primary | i i 20- i I I i. i i 22- I _ * __ I __ 1 ____ l ___ % 1 1 1 1 |l 11111 ) 11111111 | l 11 i inr nH rp ^r n'i lii T^ ir i|S n i|1 il i|i n i| f 2 3 4 5 8 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Tima (hours) *