J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange B_03 01 12 Type III 24-hr 100yr Rainfall=8.72" Prepared by TRC Engineers, Inc. Printed 3/14/2012 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 51 Summary for Pond MH-4: MH4 to MH5 [57] Hint: Peaked at 623.16’ (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 1.507 ac, 39.97% Impervious, Inflow Depth = 7.25"for 100 yr event 10.24cfs@ 12.11 hrs, Volume= 0.911 af 10.24 cfs@ 12.11 hrs, Volumes 0.911 af,Atten= 0%, Lag=0.0min 10.24cfs@ 12.11 hrs, Volume= 0.911 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 623.16’ @ 12.13 hrs Device Routing #1 Primary Invert Outlet Devices 602.20’ 18.0" Round Culvert L= 85.0’ Ke= 0.500 Inlet / Outlet lnvert= 602.20’ / 599.90’ S= 0.0271 ’/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=9.17 cfs @ 12.11 hrs HW=621.82' TW=619.65' (Dynamic Tailwater) 1=Culvert (Outlet Controls 9.17 cfs @ 5.19 fps) Pond MH-4: MH4 to MH5 Hydrograph I Inflow I Primary in 2^Lcfs| n 10.24 cfs 10 Inflow Area=1.507 ac PeakElev=623.16' l i t 18 t .0 t " Round Culvert n=0.020 L-85.0' $=0.0271 T r - I III T T 9 8 7- $ 3. 6 3 i5 4 L.i-J 3- 2: 1i|in i|i irii'i ii n'nrrpTiTp n i 01 2 3 45 p r n | i i i i|i n i{^ i i t |» 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)