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 22 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Reach 4R: TD-02 Inflow Area = 0.086 ac, 0.00% Impervious, Inflow Depth = 0.10" for WQ event Inflow = 0.02 cfs @ 1.15 hrs, Volume= 0.001 af Outflow = 0.02 cfs @ 1.15 hrs, Volume= 0.001 af, Atten= 1%, Lag= 0.5 min Routed to Pond 15P : SD-06, SD-07, SD-08 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Max. Velocity= 1.24 fps, Min. Travel Time= 0.5 min Avg. Velocity = 1.24 fps, Avg. Travel Time= 0.5 min Peak Storage= 1 cf @ 1.15 hrs Average Depth at Peak Storage= 0.01' , Surface Width= 1.50' Bank-Full Depth= 1.50' Flow Area= 2.3 sf, Capacity= 29.34 cfs 1.50' x 1.50' deep channel, n= 0.012 Concrete pipe, finished Length= 34.0' Slope= 0.0279 '/' Inlet Invert= 604.25', Outlet Invert= 603.30' Reach 4R: TD-02 Flow (cfs) Hydrograph Inflow Outflow 0.02 cfs 0.021 0.02 0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 Inflow Area=0.086 ac Avg. Flow Depth=0.01' Max Vel=1.24 fps n=0.012 L=34.0' S=0.0279 '/' Capacity=29.34 cfs 0.02 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