J_2024 05 09_West Orange Stormwater Management Plan

Pre-Development West Orange with ponds 2 Prepared by TRC Engineers, Inc. NJ DEP 2-hrNJDEP Rainfall=1.25" Printed 3/4/2012 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Page 81 Summary for Reach 15R: CB-5 to CB-4 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = Inflow = Outflow = 0.464 ac, 86.67% Impervious, Inflow Depth = 0.92" for NJDEP event 1.20 cfs @ 1.11 hrs, Volume= 0.036 af 1.20 cfs @ 1.12 hrs, Volume= 0.036 af, Atten= 1%, Lag= 0.5 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Max. Velocity= 4.76 fps, Min. Travel Time= 0.9 min Avg. Velocity = 2.10 fps, Avg. Travel Time= 1.9 min Peak Storages 62 cf @ 1.12 hrs Average Depth at Peak Storages 0.36' Bank-Full Depths 1.00', Capacity at Bank-Full= 4.39 cfs 12.0" Round Pipe n= 0.025 Corrugated metal Lengths 245.0' Slope= 0.0561 7 Inlet Inverts 610.00', Outlet Inverts 596.25' © Reach 15R: CB-5 to CB-4 Hydrograph Zi t 1 l 1.20 cfs 1.20 cfs F 1- • ( 1 1 I 1 1 1 • • 1 • / * 56 I 1 1 1 1 _ • • 1 « 1 1 1 1 1 1 i 1 1 I 1 1 _ 1 1 1 1 1 1 1 1 t ____________ 1 J 1 1 1 l | i | 1 i i | i t 1 % l l t t » I • | i i i i i • i i i | i | 1 • 1 / • 1 1 1 1 ____ \____ L / • ♦ 1 i l | 1 | | i • | i t 1 1 t 1 1 1 1 1 4 4 1 1 I • 1 4 I 89 1 1 1 l l l 1 1 • l i t 1 i i • i i i • 1 l i 1 1 1 1 1 1 4 1 1 1 1 • 4 4 1 i i i ( i 1 1 1 4 4 . i | 1 i « 1 1 I 1 1 I 1 1 i 1 1 1 4 1 1 | 1 1 1 1 4 1 --- 1 --- . I I 1 1 1 1 . i I . I 1 1 1 1 f . 1 l | 1 . 1 1 1 1 . 1 1 1 1 ______________ L i j i i i l • i i i 1 i i i i -------------------------------- . i | | 4 • 1 1 1 • 4 I t 1 1 1 1 1 1 l 1 I 1 1 1 1 1 -------4 4 1 1 I Inflow i Outflow Inflow Area=0.464 ac Avg. Flow Depth=0.36' Max Vel=4.76 fps 12.0” Round Pipe n=0.025 L=245.0' S=0.0561; 7* Capacity=4.39 cfs ______________ l • 1 1 1 4 4 I ---------1 1 I 1 1 i t i i i i i i i i i i . 1________ 1 i i i i i i i i i i i i i ______________ i i i r i i i l l i ■ i i i i i i i i 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) i i i i i i i i i i i i i i i i i i i i