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 20 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 = 0.13" for WQ event Inflow = 0.04 cfs @ 1.17 hrs, Volume= 0.002 af Outflow = 0.04 cfs @ 1.18 hrs, Volume= 0.002 af, Atten= 0%, Lag= 0.5 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= 1.55 fps, Min. Travel Time= 0.7 min Avg. Velocity = 1.31 fps, Avg. Travel Time= 0.9 min Peak Storage= 2 cf @ 1.18 hrs Average Depth at Peak Storage= 0.02' , 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 Inflow Outflow 0.04 cfs 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 Inflow Area=0.147 ac Avg. Flow Depth=0.02' Max Vel=1.55 fps n=0.012 L=67.2' S=0.0298 '/' Capacity=30.28 cfs 0.04 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