J_2024 05 09_West Orange Stormwater Management Plan

Type III 24-hr 2 yr Rainfall=3.42" Post Development West Orange C_03 01 12 Prepared by TRC Engineers, Inc. Printed 3/14/2012 - ■Page 14 HydroCAD® 9.10 sIn 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH G: MH G to MH H [57] Hint: Peaked at 606.35' (Flood elevation advised) Inflow Area = Inflow = Outflow = Primary = 1.267 ac, 31.48% Impervious, Inflow Depth = 2.34" for 2 yr event 2.55 cfs @ 12.20 hrs, Volume* 0.247 af 0.247 af, Atten* 0%, Lag= 0.0 min 2.55 cfs @ 12.20 hrs, Volume= 0.247 af 12.20 hrs, Volume= 2.55 cfs Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 606.35' @ 12.22 hrs Device Routing #1 Primary Invert Outlet Devices 598.50' 12.0" Round Culvert L= 159.0' Ke= 0.500 Inlet / Outlet Invert* 598.50' / 597.50' S= 0.0063 ’/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior Primary OutFlow Max=2.49 cfs @ 12.20 hrs HW=606.13' TW=604.04' (Dynamic Tailwater) 1=Culvert (Outlet Controls 2.49 cfs @ 3.17 fps) Pond MH G: MH G to MH H Hydrograph ■—r I ? 55 cf 2.55 CTS p7 I Inflow I j Primary | i l. i Inflow Area=1.267 ac J^k!EJejv=£Cfe35! 12.0" 2 Round Culvert n=0.020 -;t: . I i■ic l(T I i I I I I IL-159 I• S=0.0063:'/■ II.II: 1 s 1 ...5 1 1 I I *>: I I I ii 1 2 -T-1 T ” ."1 ^ T, r f T 4 \r-| i.rii | 1 '. *• I .. I I , • I . . ' l * -- I 0 1 2 ■ |llll|llll|llffiWWF^wi|fm|)ni|tiii|liii|iiii^iii|ii 3 45S7 8 9 10 11 12 13 14 15 18 17 18 19 20 21 22 23 24 25 28 27 28 29 30 Time (hours) |