J_2024 05 09_West Orange Stormwater Management Plan

Post-Developed (O-1A) NJ DEP 2-hr WQ Rainfall=1.25", P2=3.42" West Orange HydroCAD_Post Printed 5/13/2024 Page 24 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Reach 5R: TD-03 Inflow Area = 0.236 ac, 0.00% Impervious, Inflow Depth = 0.07" for WQ event Inflow = 0.03 cfs @ 1.23 hrs, Volume= 0.001 af Outflow = 0.03 cfs @ 1.28 hrs, Volume= 0.001 af, Atten= 6%, Lag= 2.9 min Routed to Pond 16P : SD-09, SD-10 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Max. Velocity= 0.72 fps, Min. Travel Time= 3.1 min Avg. Velocity = 0.55 fps, Avg. Travel Time= 4.0 min Peak Storage= 5 cf @ 1.28 hrs Average Depth at Peak Storage= 0.03' , Surface Width= 1.50' Bank-Full Depth= 1.50' Flow Area= 2.3 sf, Capacity= 11.66 cfs 1.50' x 1.50' deep channel, n= 0.012 Concrete pipe, finished Length= 133.7' Slope= 0.0044 '/' Inlet Invert= 601.81', Outlet Invert= 601.22' Reach 5R: TD-03 Hydrograph 0.032 Inflow Outflow 0.03 cfs Inflow Area=0.236 ac Avg. Flow Depth=0.03' Max Vel=0.72 fps n=0.012 L=133.7' S=0.0044 '/' Capacity=11.66 cfs 0.03 0.03 cfs 0.028 0.026 0.024 0.022 Flow (cfs) 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Time (hours) 15 16 17 18 19 20 21 22 23 24