J_2024 05 09_West Orange Stormwater Management Plan

Post-Developed (O-1A) NOAA 24-hr D 2-Year_Current Rainfall=3.45", P2=3.45" West Orange HydroCAD_Post Printed 5/13/2024 Page 63 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 > 1.16" for 2-Year_Current event Inflow = 0.30 cfs @ 12.15 hrs, Volume= 0.023 af Outflow = 0.29 cfs @ 12.16 hrs, Volume= 0.023 af, Atten= 2%, Lag= 0.8 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= 1.75 fps, Min. Travel Time= 1.3 min Avg. Velocity = 0.59 fps, Avg. Travel Time= 3.8 min Peak Storage= 23 cf @ 12.16 hrs Average Depth at Peak Storage= 0.11' , 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 0.32 Inflow Area=0.236 ac Avg. Flow Depth=0.11' Max Vel=1.75 fps n=0.012 L=133.7' S=0.0044 '/' Capacity=11.66 cfs 0.29 cfs 0.3 0.28 0.26 0.24 0.22 Flow (cfs) Inflow Outflow 0.30 cfs 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 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