J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange B_03 01 12 Type III 24-hr 10 yr Rainfall=5.21" Prepared by TRC Engineers, Inc. HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 30 Summary for Pond MH-2: MH-2 to MH-3 [57] Hint: Peaked at 606.92' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 0.916 ac, 24.39% Impervious, Inflow Depth = 3.47" for 10 yr event 3.04 cfs @ 12.15 hrs, Volume3 0.265af 3.04 cfs @ 12.15 hrs, Volume3 0.265 af, Atten=0%, Lag= 0.0 min 3.04 cfs @ 12.15 hrs, Volume3 0.265af Routing by Dyn-Stor-Ind method, Time Span3 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 606.92’ @12.14 hrs Device Routing #1 Primary Invert Outlet Devices 604.00' 12.0" Round Culvert L= 34.0' Ke= 0.500 Inlet / Outlet Invert3 604.00' / 603.20' S= 0.0235 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=3.08 cfs @ 12.15 hrs HW=606.87' TW=605.90' (Dynamic Tailwater) 1=Culvert (Outlet Controls 3.08 cfs @ 3.92 fps) Pond MH-2: MH-2 to MH-3 Hydrograph Iii I 3 04 r.f< 3.04 cfs 3- I---- f - 2 5 o iff --- h: - I------t - lit 1*1 01 rrm i rrp rri|vn Tn 234 7 8 9 10 11 l Innow | Primary | I I I P j .1— a —i _ Inflow Area=0.916 ac PeakElev-606.92; i i i I I i —1 —I— - t i - 4-- 1 — i2.0' i-l— -i Round Culvert i i i i n=0.020 i i i i i i i t L=34 O' S=0.0235 •/*7 i . .j i i i i i i i i i i m i|1 n i|1iii|1 ii iftni|nn|1n ni n i[i iu|1 n i|1 n ij¥(W| 13 14 15 18 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) &