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 59 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Reach 3R: TD-01 Inflow Area = 0.147 ac, 0.00% Impervious, Inflow Depth > 1.40" for 2-Year_Current event Inflow = 0.23 cfs @ 12.15 hrs, Volume= 0.017 af Outflow = 0.23 cfs @ 12.15 hrs, Volume= 0.017 af, Atten= 0%, Lag= 0.2 min Routed to Pond 12P : SD-03, SD-04, SD-05 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Max. Velocity= 2.88 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.33 fps, Avg. Travel Time= 0.8 min Peak Storage= 5 cf @ 12.15 hrs Average Depth at Peak Storage= 0.05' , Surface Width= 1.50' Bank-Full Depth= 1.50' Flow Area= 2.3 sf, Capacity= 30.28 cfs 1.50' x 1.50' deep channel, n= 0.012 Concrete pipe, finished Length= 67.2' Slope= 0.0298 '/' Inlet Invert= 606.00', Outlet Invert= 604.00' Reach 3R: TD-01 Flow (cfs) Hydrograph 0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Outflow 0.23 cfs Inflow Area=0.147 ac Avg. Flow Depth=0.05' Max Vel=2.88 fps n=0.012 L=67.2' S=0.0298 '/' Capacity=30.28 cfs 0.23 cfs 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