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 Page 50 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH-3: MH-3 to MH-4 [57] Hint: Peaked at 627.76' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 0.916 ac, 24.39% Impervious, Inflow Depth = 6.74" for 100 yr event 5.85 cfs @ 12.15 hrs, Volume= 0.515 af 5.85 cfs @ 12.15 hrs, Volume= 0.515 af, Atten=0%, Lag= 0.0 min 5.85 cfs @ 12.15 hrs, Volume= 0.515 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 627.76' @12.14 hrs Device Routing #1 Primary Invert Outlet Devices 603.20' 12.0" Round Culvert L= 50.0' Ke= 0.500 Inlet / Outlet lnvert= 603.20'/602.20' S= 0.0200'/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=6.04 cfs @ 12.15 hrs HW=627.50' TW=622.71' (Dynamic Tailwater) 1=Culvert (Outlet Controls 6.04 cfs @ 7.69 fps) Pond MH-3: MH-3 to MH-4 Hydrograph 5 5.85 cfs 6- % A A 5- i i i i i i i i i i ■ i----r --i —a i1 I,, in |^. i Mi 1 . 1 |l. i M'. .i i p i . i|i in |1 ii i |i rnirii'frri ip 1 2 3 4 5 6 7 8 ii i i 12.0'f Round Culvert n=0.020 L=50.0' S=0.0200 r * 3 i i 0 ■ Inflow I II Primary | ----- L _ - 1 . --------- 1 -- ----- 1 ------ | ------- | ---------- 1 ------ 1 - m 0- i i « n i i i i i i “ t i i I - i Inflow Area=0.916 ac Peak Elev=627.76' 1g 3- i i l ii i i A | u. i 9 3 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 28 27 28 29 30 Time (hours) n