Supporting Documentation · Aug 15, 2024
J_2024 05 09_West Orange Stormwater Management Plan
c30154c5b2e926fb3bf094c58f5df7b46c6e758698d66ce7ef1e45733c103a5eIndexed text
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 152 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Primary OutFlow Max=0.20 cfs @ 12.71 hrs HW=596.26' TW=585.38' (Dynamic Tailwater) 1=SD-24 Outlet (Elevation F) (Passes 0.20 cfs of 17.83 cfs potential flow) 2=Water Quatity (Elevation G) (Orifice Controls 0.20 cfs @ 5.80 fps) 3=Water Quantity (Elevation H) ( Controls 0.00 cfs) 4=Overflow Grate (Elevation I) ( Controls 0.00 cfs) Pond 6P: BR-04 Hydrograph Inflow Primary 1.44 cfs Inflow Area=0.317 ac Peak Elev=596.26' Storage=1,813 cf Flow (cfs) 1 0.20 cfs 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
Post-Developed (O-1B) West Orange HydroCAD_Post NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 6P: BR-04 Time (hours) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50 17.00 17.50 18.00 18.50 19.00 19.50 20.00 20.50 21.00 21.50 22.00 22.50 23.00 23.50 24.00 Inflow (cfs) 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.10 0.17 0.79 0.29 0.15 0.10 0.08 0.06 0.05 0.05 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 Storage Elevation (cubic-feet) (feet) 0 594.70 0 594.70 0 594.70 4 594.70 10 594.71 18 594.72 28 594.72 37 594.73 46 594.74 54 594.75 62 594.75 69 594.76 76 594.76 83 594.77 92 594.78 102 594.79 113 594.80 125 594.81 138 594.82 155 594.83 179 594.85 209 594.87 263 594.92 384 595.02 819 595.40 1,784 596.23 1,790 596.24 1,663 596.12 1,485 595.97 1,305 595.82 1,126 595.66 953 595.51 798 595.38 661 595.26 542 595.16 441 595.07 356 595.00 288 594.94 237 594.90 202 594.87 179 594.85 165 594.84 155 594.83 148 594.82 143 594.82 139 594.82 135 594.81 131 594.81 128 594.81 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.01 0.01 0.01 0.02 0.02 0.02 0.03 0.03 0.04 0.06 0.08 0.13 0.20 0.20 0.19 0.18 0.17 0.15 0.14 0.12 0.11 0.10 0.08 0.07 0.06 0.05 0.04 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 Printed 5/13/2024 Page 153
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 154 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Pond 8P: O-1B Inflow Area = Inflow = Primary = 1.863 ac, 27.41% Impervious, Inflow Depth > 3.94" for 10-Year_Current event 1.31 cfs @ 12.70 hrs, Volume= 0.612 af 1.31 cfs @ 12.70 hrs, Volume= 0.612 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Pond 8P: O-1B Hydrograph Inflow Primary 1.31 cfs Inflow Area=1.863 ac 1.31 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
Post-Developed (O-1B) West Orange HydroCAD_Post NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 8P: O-1B Time (hours) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50 17.00 17.50 18.00 18.50 19.00 19.50 20.00 20.50 21.00 21.50 22.00 22.50 23.00 23.50 24.00 Inflow Elevation (cfs) (feet) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.10 0.13 0.15 0.19 0.24 0.31 0.42 0.67 1.23 1.27 1.21 1.11 1.01 0.92 0.79 0.68 0.59 0.51 0.43 0.37 0.31 0.26 0.22 0.19 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.10 0.13 0.15 0.19 0.24 0.31 0.42 0.67 1.23 1.27 1.21 1.11 1.01 0.92 0.79 0.68 0.59 0.51 0.43 0.37 0.31 0.26 0.22 0.19 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 Printed 5/13/2024 Page 155
Post-Developed (O-1B) West Orange HydroCAD_Post NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Printed 5/13/2024 Page 156 Summary for Pond 13P: SD-25, SD-26 Inflow Area = 1.863 ac, 27.41% Impervious, Inflow Depth > 3.94" for 10-Year_Current event Inflow = 1.31 cfs @ 12.70 hrs, Volume= 0.612 af Outflow = 1.31 cfs @ 12.70 hrs, Volume= 0.612 af, Atten= 0%, Lag= 0.1 min Primary = 1.31 cfs @ 12.70 hrs, Volume= 0.612 af Routed to Pond 8P : O-1B Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Peak Elev= 580.97' @ 12.70 hrs Surf.Area= 0.000 ac Storage= 0.000 af Plug-Flow detention time= 0.0 min calculated for 0.612 af (100% of inflow) Center-of-Mass det. time= 0.0 min ( 879.0 - 879.0 ) Volume #1 Device #1 Invert 580.69' Routing Primary Avail.Storage 0.007 af Invert 580.44' Storage Description 15.0" Round SD-25 L= 262.4' S= 0.0150 '/' Outlet Devices 18.0" Round SD-26 L= 29.4' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 580.44' / 580.15' S= 0.0099 '/' Cc= 0.900 n= 0.011 Concrete pipe, straight & clean, Flow Area= 1.77 sf Primary OutFlow Max=1.31 cfs @ 12.70 hrs HW=580.97' TW=0.00' (Dynamic Tailwater) 1=SD-26 (Barrel Controls 1.31 cfs @ 3.49 fps)
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 157 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Pond 13P: SD-25, SD-26 Hydrograph Inflow Primary 1.31 cfs Inflow Area=1.863 ac Peak Elev=580.97' Storage=0.000 af 18.0" Round Culvert n=0.011 L=29.4' S=0.0099 '/' Flow (cfs) 1 1.31 cfs 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
Post-Developed (O-1B) West Orange HydroCAD_Post NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 13P: SD-25, SD-26 Time (hours) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50 17.00 17.50 18.00 18.50 19.00 19.50 20.00 20.50 21.00 21.50 22.00 22.50 23.00 23.50 24.00 Inflow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.10 0.13 0.15 0.19 0.24 0.31 0.42 0.67 1.23 1.27 1.21 1.11 1.01 0.92 0.79 0.68 0.59 0.51 0.43 0.37 0.31 0.26 0.22 0.19 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 Storage Elevation (acre-feet) (feet) 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.72 0.000 580.80 0.000 580.95 0.000 580.96 0.000 580.95 0.000 580.92 0.000 580.90 0.000 580.87 0.000 580.84 0.000 580.81 0.000 580.78 0.000 580.75 0.000 580.73 0.000 580.70 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 0.000 580.69 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.10 0.13 0.15 0.19 0.24 0.31 0.42 0.67 1.23 1.27 1.21 1.11 1.01 0.92 0.79 0.68 0.59 0.51 0.43 0.37 0.31 0.26 0.22 0.19 0.17 0.16 0.15 0.14 0.13 0.12 0.12 0.11 Printed 5/13/2024 Page 158
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
Post-Developed (O-1B) West Orange HydroCAD_Post NOAA 24-hr D 10-Year_Current Rainfall=5.37", P2=3.45" Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 14P: SD-24 Time (hours) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50 17.00 17.50 18.00 18.50 19.00 19.50 20.00 20.50 21.00 21.50 22.00 22.50 23.00 23.50 24.00 Inflow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.11 0.13 0.16 0.21 0.26 0.35 0.55 1.02 1.07 1.03 0.95 0.87 0.81 0.71 0.62 0.54 0.47 0.40 0.34 0.28 0.24 0.20 0.17 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.10 Storage Elevation (acre-feet) (feet) 0.000 584.88 0.000 584.88 0.000 584.88 0.000 584.88 0.000 584.89 0.000 584.90 0.000 584.91 0.000 584.92 0.000 584.93 0.000 584.94 0.000 584.95 0.000 584.95 0.000 584.96 0.000 584.97 0.000 584.98 0.000 584.99 0.000 585.00 0.000 585.02 0.000 585.03 0.000 585.04 0.000 585.06 0.000 585.09 0.000 585.11 0.000 585.15 0.000 585.22 0.000 585.36 0.000 585.37 0.000 585.36 0.000 585.34 0.000 585.32 0.000 585.30 0.000 585.27 0.000 585.25 0.000 585.22 0.000 585.20 0.000 585.17 0.000 585.15 0.000 585.12 0.000 585.10 0.000 585.08 0.000 585.07 0.000 585.06 0.000 585.05 0.000 585.04 0.000 585.04 0.000 585.03 0.000 585.03 0.000 585.03 0.000 585.02 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0.05 0.06 0.07 0.09 0.11 0.13 0.16 0.21 0.26 0.35 0.54 1.02 1.07 1.03 0.95 0.87 0.81 0.71 0.62 0.54 0.47 0.40 0.34 0.28 0.24 0.20 0.17 0.15 0.14 0.13 0.12 0.11 0.11 0.10 0.10 Printed 5/13/2024 Page 160
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 161 Prepared by Burns & McDonnell HydroCAD® 10.20-4b s/n 08510 © 2023 HydroCAD Software Solutions LLC Summary for Pond 17P: SD-23 Inflow Area = 1.305 ac, 24.67% Impervious, Inflow Depth > 3.92" for 10-Year_Current event Inflow = 0.90 cfs @ 12.70 hrs, Volume= 0.426 af Outflow = 0.90 cfs @ 12.70 hrs, Volume= 0.426 af, Atten= 0%, Lag= 0.1 min Primary = 0.90 cfs @ 12.70 hrs, Volume= 0.426 af Routed to Pond 14P : SD-24 Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.0100 hrs Peak Elev= 587.25' @ 12.70 hrs Surf.Area= 0.001 ac Storage= 0.000 af Plug-Flow detention time= 0.1 min calculated for 0.426 af (100% of inflow) Center-of-Mass det. time= 0.1 min ( 884.2 - 884.1 ) Volume #1 Device #1 Invert 586.80' Avail.Storage 0.003 af Routing Primary Invert 586.80' Storage Description 15.0" Round SD-23 L= 93.7' S= 0.0150 '/' Outlet Devices 15.0" Vert. SD-23 C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.90 cfs @ 12.70 hrs HW=587.25' TW=585.38' (Dynamic Tailwater) 1=SD-23 (Orifice Controls 0.90 cfs @ 2.28 fps) Pond 17P: SD-23 Hydrograph 1 Inflow Primary 0.90 cfs Inflow Area=1.305 ac Peak Elev=587.25' Storage=0.000 af Flow (cfs) 0.90 cfs 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
File revisions (1)
- Sep 29, 2026
c30154c5b2e9131,201,955 bytes