J_2024 05 09_West Orange Stormwater Management Plan

Post Development West Orange C_03 01 12 Type III 24-hr 100 yr Rainfall=8.72" Prepared by TRC Engineers, Inc. HvdroCAD® 9.10 s/n 06401 © 2009 HydroCAD Software Solutions LLC Printed 3/14/2012 Page 52 Summary for Reach 1R: Swale 2.157 ac, 1.99% Impervious, Inflow Depth 3 6.35" for 100 yr event 14.79cfs@ 12.11 hrs, Volume= 1.141 af 14.44 cfs @ 12.13 hrs, Volume= 1.141 af, Atten= 2%, Lag=1.2min Inflow Area = Inflow = 3 Outflow Routing by Dyn-Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs / 2 Max. Velocity3 4.25 fps, Min. Travel Time= 1.6 min Avg. Velocity = 1.07 fps, Avg. Travel Time= 6.5 min Peak Storage3 1,427 cf @ 12.13 hrs Average Depth at Peak Storage3 0.38’ 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 V Top Width3 15.00' Length3 420.0' Slope3 0.0429 7 Inlet Invert3 598.00', Outlet Invert3 580.00' Reach 1R: Swale Hydrograph I--fJ -------1 16- _ 14.79 Cfs _ L L _ i _I ___ I I I ii 13_i _ 1211- Max Vel=4.25 fps !— t- - 4 —i—«- n=0.030 ii ii iii ■ L=420;0' 5=0.0429; 7 C apacity=24.59 cfs - . \vIII ri l•I! II! I 0 _ II'I Iriflo>w Area=2.157 ac Avg Flow' Depth=0.38! 14.44 cfs H 15-1 t _ _L _ J------ J-J 1 234 56 II l|l II l|» M Ml II 1^ II m M l|l I. ..... .................. . IVffl'MTfrr 7 8 9 10 11 12 13 14 15 18 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours) I I m ! I Inflow j Outflow