J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Type III 24-hr 10 yr Rainfall=5.21" Prepared byTRC Engineers, Inc. HydroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 31 Summary for Reach 1R: Swale InflowArea3 2.157 ac, 1.99% Impervious, lnflowDepth= 3.11" forlOyrevent Inflow = 7.39 cfs@ 12.11 hrs, Volume= 0.560 af Outflow = 7.15 cfs@ 12.13 hrs, Volume= 0.560 af, Atten= 3%, Lag=1.4min Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Max. Velocity= 3.48 fps, Min. Travel Time3 2.0 min Avg. Velocity = 0.84 fps, Avg. Travel Time= 8.4 min Peak Storage3 863 cf @ 12.13 hrs Average Depth at Peak Storage3 0.27' Bank-Full Depth3 0.50', Capacity at Bank-Full3 24.59 cfs 5.00' x 0.50' deep channel, n= 0.030 Earth, grassed & winding Side Slope Z-value= 10.0 7’ Top Width3 15.00' Length3 420.0' Slope3 0.0429 7’ Inlet Invert3 598.00', Outlet Invert3 580.00' Reach 1R: Swale Hydrograph ■ Inflow I □ Outflow! 7.39 cfs Inflow Area-2.157 ac 7.15 cfs ----- ^ Avg. Flow Depth=0.27' Max Vel=3.48 fps n=0.030 ///, m n L=420.0' I S=0.0429 V Capacity=24.59 cfs % mw/mm ni i. m ii ii iii 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) %