J_2024 05 09_West Orange Stormwater Management Plan

Post-Developed (O-1B) NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" West Orange HydroCAD_Post Printed 5/13/2024 Page 159 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Pond 14P: SD-24 Inflow Area = 1.622 ac, 27.37% Impervious, Inflow Depth > 3.94" for 10-Year_Current event Inflow = 1.10 cfs @ 12.70 hrs, Volume= 0.532 af Outflow = 1.10 cfs @ 12.71 hrs, Volume= 0.532 af, Atten= 0%, Lag= 0.1 min Primary = 1.10 cfs @ 12.71 hrs, Volume= 0.532 af Routed to Pond 13P : SD-25, SD-26 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Peak Elev= 585.38' @ 12.71 hrs Surf.Area= 0.001 ac Storage= 0.000 af Plug-Flow detention time= 0.1 min calculated for 0.532 af (100% of inflow) Center-of-Mass det. time= 0.1 min ( 883.9 - 883.9 ) Volume #1 Device #1 Invert 584.88' Avail.Storage 0.003 af Routing Primary Invert 584.88' Storage Description 15.0" Round SD-24 L= 111.3' S= 0.0150 '/' Outlet Devices 15.0" Vert. SD-24 C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=1.10 cfs @ 12.71 hrs HW=585.38' TW=580.97' (Dynamic Tailwater) 1=SD-24 (Orifice Controls 1.10 cfs @ 2.41 fps) Pond 14P: SD-24 Hydrograph Inflow Primary 1.10 cfs Inflow Area=1.622 ac Peak Elev=585.38' Storage=0.000 af 1.10 cfs Flow (cfs) 1 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