Loading...
HomeMy WebLinkAboutExisting hydrology NOAA server1S A 2S B 3S C 4L Offsite to North 5L Route 28 Routing Diagram for Existing - 228 R28 r1 - NOAA server dataPrepared by Green Seal Environmental LLC, Printed 1/14/2025 HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Subcat Reach Pond Link NOAA10 24-hr C 2-Year Rainfall=3.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 2HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: A Runoff = 0.02 cfs @ 12.59 hrs, Volume= 533 cf, Depth= 0.17" Routed to Link 4L : Offsite to North Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Area (sf) CN Description 15,339 30 Woods, Good, HSG A 13,500 39 >75% Grass cover, Good, HSG A 9,350 98 Paved parking, HSG A 38,189 50 Weighted Average 28,839 75.52% Pervious Area 9,350 24.48% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.2 30 0.0070 0.06 Sheet Flow, Sheet flow Grass: Dense n= 0.240 P2= 3.26" 6.5 162 0.0070 0.42 Shallow Concentrated Flow, Shallow concentrated Woodland Kv= 5.0 fps 14.7 192 Total Subcatchment 1S: A Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 0.024 0.023 0.022 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 Runoff=0.02 cfs @ 12.59 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Runoff Area=38,189 sf Runoff Volume=533 cf Runoff Depth=0.17" Flow Length=192' Slope=0.0070 '/' Tc=14.7 min CN=50 0.02 cfs @ 12.59 hrs NOAA10 24-hr C 2-Year Rainfall=3.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 3HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: B Runoff = 2.15 cfs @ 12.10 hrs, Volume= 5,013 cf, Depth= 2.52" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Area (sf) CN Description 1,370 30 Woods, Good, HSG A 962 39 >75% Grass cover, Good, HSG A 21,519 98 Paved parking, HSG A 23,851 92 Weighted Average 2,332 9.78% Pervious Area 21,519 90.22% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.1 50 0.0060 0.75 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.9 82 0.0060 1.57 Shallow Concentrated Flow, Shallow concentrated flow Paved Kv= 20.3 fps 2.0 132 Total Subcatchment 2S: B Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 2 1 0 Runoff=2.15 cfs @ 12.10 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Runoff Area=23,851 sf Runoff Volume=5,013 cf Runoff Depth=2.52" Flow Length=132' Slope=0.0060 '/' Tc=2.0 min CN=92 2.15 cfs @ 12.10 hrs NOAA10 24-hr C 2-Year Rainfall=3.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 4HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: C Runoff = 1.22 cfs @ 12.10 hrs, Volume= 2,553 cf, Depth= 1.54" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Area (sf) CN Description 12,096 68 <50% Grass cover, Poor, HSG A 7,772 98 Paved parking, HSG A 19,868 80 Weighted Average 12,096 60.88% Pervious Area 7,772 39.12% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.8 45 0.0100 0.90 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.3 31 0.0100 1.61 Shallow Concentrated Flow, Shallow concentrated flow Unpaved Kv= 16.1 fps 1.1 76 Total Subcatchment 3S: C Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 1 0 Runoff=1.22 cfs @ 12.10 hrs NOAA10 24-hr C 2-Year Rainfall=3.38" Runoff Area=19,868 sf Runoff Volume=2,553 cf Runoff Depth=1.54" Flow Length=76' Slope=0.0100 '/' Tc=1.1 min CN=80 1.22 cfs @ 12.10 hrs NOAA10 24-hr C 2-Year Rainfall=3.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 5HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 4L: Offsite to North Inflow Area = 38,189 sf, 24.48% Impervious, Inflow Depth = 0.17" for 2-Year event Inflow = 0.02 cfs @ 12.59 hrs, Volume= 533 cf Primary = 0.02 cfs @ 12.59 hrs, Volume= 533 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 4L: Offsite to North Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 0.024 0.023 0.022 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=38,189 sf Inflow=0.02 cfs @ 12.59 hrs Primary=0.02 cfs @ 12.59 hrs 0.02 cfs @ 12.59 hrs0.02 cfs @ 12.59 hrs NOAA10 24-hr C 2-Year Rainfall=3.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 6HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 5L: Route 28 Inflow Area = 43,719 sf, 67.00% Impervious, Inflow Depth = 2.08" for 2-Year event Inflow = 3.37 cfs @ 12.10 hrs, Volume= 7,565 cf Primary = 3.37 cfs @ 12.10 hrs, Volume= 7,565 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 5L: Route 28 Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 3 2 1 0 Inflow Area=43,719 sf Inflow=3.37 cfs @ 12.10 hrs Primary=3.37 cfs @ 12.10 hrs 3.37 cfs @ 12.10 hrs3.37 cfs @ 12.10 hrs NOAA10 24-hr C 10-Year Rainfall=4.93"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 7HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: A Runoff = 0.37 cfs @ 12.27 hrs, Volume= 2,113 cf, Depth= 0.66" Routed to Link 4L : Offsite to North Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Area (sf) CN Description 15,339 30 Woods, Good, HSG A 13,500 39 >75% Grass cover, Good, HSG A 9,350 98 Paved parking, HSG A 38,189 50 Weighted Average 28,839 75.52% Pervious Area 9,350 24.48% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.2 30 0.0070 0.06 Sheet Flow, Sheet flow Grass: Dense n= 0.240 P2= 3.26" 6.5 162 0.0070 0.42 Shallow Concentrated Flow, Shallow concentrated Woodland Kv= 5.0 fps 14.7 192 Total Subcatchment 1S: A Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Runoff=0.37 cfs @ 12.27 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Runoff Area=38,189 sf Runoff Volume=2,113 cf Runoff Depth=0.66" Flow Length=192' Slope=0.0070 '/' Tc=14.7 min CN=50 0.37 cfs @ 12.27 hrs NOAA10 24-hr C 10-Year Rainfall=4.93"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 8HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: B Runoff = 3.31 cfs @ 12.10 hrs, Volume= 7,992 cf, Depth= 4.02" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Area (sf) CN Description 1,370 30 Woods, Good, HSG A 962 39 >75% Grass cover, Good, HSG A 21,519 98 Paved parking, HSG A 23,851 92 Weighted Average 2,332 9.78% Pervious Area 21,519 90.22% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.1 50 0.0060 0.75 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.9 82 0.0060 1.57 Shallow Concentrated Flow, Shallow concentrated flow Paved Kv= 20.3 fps 2.0 132 Total Subcatchment 2S: B Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 3 2 1 0 Runoff=3.31 cfs @ 12.10 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Runoff Area=23,851 sf Runoff Volume=7,992 cf Runoff Depth=4.02" Flow Length=132' Slope=0.0060 '/' Tc=2.0 min CN=92 3.31 cfs @ 12.10 hrs NOAA10 24-hr C 10-Year Rainfall=4.93"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 9HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: C Runoff = 2.15 cfs @ 12.10 hrs, Volume= 4,689 cf, Depth= 2.83" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Area (sf) CN Description 12,096 68 <50% Grass cover, Poor, HSG A 7,772 98 Paved parking, HSG A 19,868 80 Weighted Average 12,096 60.88% Pervious Area 7,772 39.12% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.8 45 0.0100 0.90 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.3 31 0.0100 1.61 Shallow Concentrated Flow, Shallow concentrated flow Unpaved Kv= 16.1 fps 1.1 76 Total Subcatchment 3S: C Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 2 1 0 Runoff=2.15 cfs @ 12.10 hrs NOAA10 24-hr C 10-Year Rainfall=4.93" Runoff Area=19,868 sf Runoff Volume=4,689 cf Runoff Depth=2.83" Flow Length=76' Slope=0.0100 '/' Tc=1.1 min CN=80 2.15 cfs @ 12.10 hrs NOAA10 24-hr C 10-Year Rainfall=4.93"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 10HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 4L: Offsite to North Inflow Area = 38,189 sf, 24.48% Impervious, Inflow Depth = 0.66" for 10-Year event Inflow = 0.37 cfs @ 12.27 hrs, Volume= 2,113 cf Primary = 0.37 cfs @ 12.27 hrs, Volume= 2,113 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 4L: Offsite to North Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=38,189 sf Inflow=0.37 cfs @ 12.27 hrs Primary=0.37 cfs @ 12.27 hrs 0.37 cfs @ 12.27 hrs0.37 cfs @ 12.27 hrs NOAA10 24-hr C 10-Year Rainfall=4.93"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 11HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 5L: Route 28 Inflow Area = 43,719 sf, 67.00% Impervious, Inflow Depth = 3.48" for 10-Year event Inflow = 5.45 cfs @ 12.10 hrs, Volume= 12,681 cf Primary = 5.45 cfs @ 12.10 hrs, Volume= 12,681 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 5L: Route 28 Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 6 5 4 3 2 1 0 Inflow Area=43,719 sf Inflow=5.45 cfs @ 12.10 hrs Primary=5.45 cfs @ 12.10 hrs 5.45 cfs @ 12.10 hrs5.45 cfs @ 12.10 hrs NOAA10 24-hr C 100-Year Rainfall=7.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 12HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: A Runoff = 1.50 cfs @ 12.24 hrs, Volume= 5,989 cf, Depth= 1.88" Routed to Link 4L : Offsite to North Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Area (sf) CN Description 15,339 30 Woods, Good, HSG A 13,500 39 >75% Grass cover, Good, HSG A 9,350 98 Paved parking, HSG A 38,189 50 Weighted Average 28,839 75.52% Pervious Area 9,350 24.48% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.2 30 0.0070 0.06 Sheet Flow, Sheet flow Grass: Dense n= 0.240 P2= 3.26" 6.5 162 0.0070 0.42 Shallow Concentrated Flow, Shallow concentrated Woodland Kv= 5.0 fps 14.7 192 Total Subcatchment 1S: A Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 1 0 Runoff=1.50 cfs @ 12.24 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Runoff Area=38,189 sf Runoff Volume=5,989 cf Runoff Depth=1.88" Flow Length=192' Slope=0.0070 '/' Tc=14.7 min CN=50 1.50 cfs @ 12.24 hrs NOAA10 24-hr C 100-Year Rainfall=7.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 13HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: B Runoff = 5.10 cfs @ 12.10 hrs, Volume= 12,780 cf, Depth= 6.43" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Area (sf) CN Description 1,370 30 Woods, Good, HSG A 962 39 >75% Grass cover, Good, HSG A 21,519 98 Paved parking, HSG A 23,851 92 Weighted Average 2,332 9.78% Pervious Area 21,519 90.22% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.1 50 0.0060 0.75 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.9 82 0.0060 1.57 Shallow Concentrated Flow, Shallow concentrated flow Paved Kv= 20.3 fps 2.0 132 Total Subcatchment 2S: B Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 5 4 3 2 1 0 Runoff=5.10 cfs @ 12.10 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Runoff Area=23,851 sf Runoff Volume=12,780 cf Runoff Depth=6.43" Flow Length=132' Slope=0.0060 '/' Tc=2.0 min CN=92 5.10 cfs @ 12.10 hrs NOAA10 24-hr C 100-Year Rainfall=7.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 14HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: C Runoff = 3.69 cfs @ 12.10 hrs, Volume= 8,355 cf, Depth= 5.05" Routed to Link 5L : Route 28 Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Area (sf) CN Description 12,096 68 <50% Grass cover, Poor, HSG A 7,772 98 Paved parking, HSG A 19,868 80 Weighted Average 12,096 60.88% Pervious Area 7,772 39.12% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.8 45 0.0100 0.90 Sheet Flow, Sheet flow Smooth surfaces n= 0.011 P2= 3.26" 0.3 31 0.0100 1.61 Shallow Concentrated Flow, Shallow concentrated flow Unpaved Kv= 16.1 fps 1.1 76 Total Subcatchment 3S: C Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 4 3 2 1 0 Runoff=3.69 cfs @ 12.10 hrs NOAA10 24-hr C 100-Year Rainfall=7.38" Runoff Area=19,868 sf Runoff Volume=8,355 cf Runoff Depth=5.05" Flow Length=76' Slope=0.0100 '/' Tc=1.1 min CN=80 3.69 cfs @ 12.10 hrs NOAA10 24-hr C 100-Year Rainfall=7.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 15HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 4L: Offsite to North Inflow Area = 38,189 sf, 24.48% Impervious, Inflow Depth = 1.88" for 100-Year event Inflow = 1.50 cfs @ 12.24 hrs, Volume= 5,989 cf Primary = 1.50 cfs @ 12.24 hrs, Volume= 5,989 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 4L: Offsite to North Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 1 0 Inflow Area=38,189 sf Inflow=1.50 cfs @ 12.24 hrs Primary=1.50 cfs @ 12.24 hrs 1.50 cfs @ 12.24 hrs1.50 cfs @ 12.24 hrs NOAA10 24-hr C 100-Year Rainfall=7.38"Existing - 228 R28 r1 - NOAA server data Printed 1/14/2025Prepared by Green Seal Environmental LLC Page 16HydroCAD® 10.20-5c s/n 07546 © 2023 HydroCAD Software Solutions LLC Summary for Link 5L: Route 28 Inflow Area = 43,719 sf, 67.00% Impervious, Inflow Depth = 5.80" for 100-Year event Inflow = 8.80 cfs @ 12.10 hrs, Volume= 21,135 cf Primary = 8.80 cfs @ 12.10 hrs, Volume= 21,135 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 5L: Route 28 Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Inflow Area=43,719 sf Inflow=8.80 cfs @ 12.10 hrs Primary=8.80 cfs @ 12.10 hrs 8.80 cfs @ 12.10 hrs8.80 cfs @ 12.10 hrs