J_2024 05 09_West Orange Stormwater Management Plan

Type III 24-hr 2 yr Rainfall=3.42" Pre-Development West Orange with ponds 2 Prepared by TRC Engineers, Inc. Printed 3/4/2012 Page 17 HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Summary for Reach 15R: CB-5 to CB-4 [52] Hint: Inlet/Outlet conditions not evaluated Inflow Area = Inflow = 3 Outflow 0.464 ac, 86.67% Impervious, Inflow Depth = 2.97" for 2 yr event 1.45 cfs @ 12.08 hrs, Volume= 0.115 af 1.44 cfs @ 12.09 hrs, Volume3 0.115 af, Atten= 1%, Lag= 0.6 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Max. Velocity3 5.00 fps, Min. Travel Time3 0.8 min Avg. Velocity 3 1.64 fps, Avg. Travel Time3 2.5 min Peak Storage3 70 cf @ 12.09 hrs Average Depth at Peak Storage3 0.39' Bank-Full Depth3 1.00', Capacity at Bank-Full3 4.39 cfs 12.0” Round Pipe n= 0.025 Corrugated metal Length3 245.0' Slope3 0.0561 7' Inlet Invert3 610.00', Outlet Invert3 596.25' © Reach 15R: CB-5 to CB-4 Hydrograph 1-45. cfs] 1.44 cfs I Inflow I I Outflow! Inflow Area=0.464 ac A vg . Flow Depth=0.39* Max Vel=5.00 fps 1:2.0" Round Pipe i n=0.025 | L=245.0’ S=0.0561; 7; Ca P acity=4.39 cfs m % % % 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)