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. HydroCAD® 9.10 sIn 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 11 Summary for Pond MH-2: MH-2 to MH-3 [57] Hint: Peaked at 604.75' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 0.916 ac, 24.39% Impervious, Inflow Depth = 1.91" for 2 yr event 1.66 cfs@ 12.15 hrs, Volume= 0.146 af 1.66 cfs @ 12.15 hrs, Volume= 0.146 af, Atten= 0%, Lag= 0.0 min 1.66 cfs @ 12.15 hrs, Volume= 0.146 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 604.75' @12.15 hrs Device Routing #1 Primary Invert Outlet Devices 604.00’ 12.0" Round Culvert L= 34.0' Ke= 0.500 Inlet / Outlet Inverts 604.00' / 603.20’ S= 0.0235 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=1.66 cfs @ 12.15 hrs HW=604.75' TW=603.97' (Dynamic Tailwater) 1=Culvert (Outlet Controls 1.66 cfs @ 3.65 fps) Pond MH-2: MH-2 to MH-3 Hydrograph I 1 fifi r.fs I 1.66 cfs ' 1 2 3 45 6 7 8 S Inflow B Primary Inflow Area=0.916 ac Peak k Elev=604.75' 12.0 Round Culvert n=0.020 L-34.0' S=0.0235 V 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)