J_2024 05 09_West Orange Stormwater Management Plan

Type III 24-hr 2 yr Rainfall=3.42" Post Development West Orange B_03 01 12 Prepared by TRC Engineers, Inc. Printed 3/14/2012 Page 16 HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH-7: MH-7 to MH-11 [57] Hint: Peaked at 597.83' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 5.076 ac, 24.87% Impervious, Inflow Depth = 2.02" for 2 yr event 8.76 cfs @ 12.13 hrs, Volume= 0.855 af 8.76 cfs @ 12.13 hrs, Volume= 0,855 af, Atten= 0%, Lag=0.0min 8.76 cfs @ 12.13 hrs, Volume= 0.855 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 597.83' @12.13 hrs Invert Outlet Devices 596.50' 30.0" Round Culvert L= 360.0' Ke= 0.500 Inlet / Outlet lnvert= 596.50' / 592.80' S= 0.0103 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Device Routing #1 Primary Primary OutFlow Max=8.75 cfs @ 12.13 hrs HW=597.83' TW=0.00' (Dynamic Tailwater) ^-1=Culvert (Barrel Controls 8.75 cfs @ 4.81 fps) Pond MH-7: MH-7 to MH-11 Hydrograph r T I ------1---- 1----------- 1-1-1---1---------1--- 1----- 1---1----- 1---------i--------------I 1 1 1 1 1 1 1 1 1 1 1 t 11 1 1 1 1 1 1 1 1 11 I I Inflow I 1“ - — r * i —i — ~ (— r-n *i —i — i— r* - t _ ■ I R 7 fi r. I Primaryl | 8.76 cfs flow Area=5,076 ac In Peak Elev=597.83' Li LLi LL3h<vi Round Culvert ,-LLl J-i-i n=0.020 .: L=360.0' S=0.0103T i i i i i i x - i i i % :i — 5 Tn 1 _ L _ _1 _ U _ L .. 1 _ J • i i L i i i i i i i i' r 1 |r ' i i— r - r - i * l 1 1 * i i i ** i i i : ! i 1 i i i i• 1 t I __ 1 __ L _ L _ J _ _ i 1 1 • 1 1 1 I t 11 , i i 11 11 I1 1 1 1 i i i 1 1 1 I 1 1 1 11 1 1*1 1 1I t > i i m M1 2 3 45 6 m i mi i 0 78 mm 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) m i