J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 NJ DEP 2-hrNJDEP Rainfall=1.25" Printed 3/14/2012 Page 82 Prepared by TRC Engineers, Inc. HvdroCAD® 9,10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Pond MH-D: MH-D to MH12 [57] Hint: Peaked at 593.90' (Flood elevation advised) 7.765 ac, 25.89% Impervious, Inflow Depth 3 0.44" for NJDEP event 0.284af Volume3 1.18 hrs, 5.57 cfs @ 0.284 af, Atten=0%, Lag3 0.0 min Volume3 1.18 hrs, 5.57 cfs @ 0.284af Volume3 1.18 hrs, 5.57 cfs @ Inflow Area = = Inflow = Outflow 3 Primary Routing by Dyn-Stor-Ind method, Time Span3 0.00-30.00 hrs, dt3 0.01 h r s / 2 Peak Elev= 593.90' @ 1.19 hrs Invert Outlet Devices Device Routing 592.70' 30.0" Round Culvert L= 90.0' Ke= 0.500 Inlet / Outlet Invert3 592.70' / 591.70' S= 0.0111 V Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior #1 Primary Primary OutFlow Max=5.56 cfs @ 1 . 1 8 hrs HW=593.90' TW=593.10' (Dynamic Tailwater) ■t-1=Culvert (Outlet Controls 5.56 cfs @ 3.50 fps) Pond MH-D: MH-D to MH12 Hydrograph i—r—;—r ,xn~7- . 1 ____ I ____ J L -------- I - I S 57 r.fs I 5.57 Cfs ^ - t—i—i—i—:—i—:—r -i—;—i—i—— - I ____ L _ J ------------1 ------ 1 ____l _ I I f I I In . i _____ i ____ i — i — 1 _ . iiiiiiiiii flow Area=7.765 ac Peak Elev=593.90' Round Culvert 4--- I---1--!---V - n=0.020 1 ‘ 1-t- ~ -1 I / 01 II L=90.0- S=0.0111 m mm\m I Inflow i Rrlmafy 2 3 4 5 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) U'pl* 1 ■m.