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HomeMy WebLinkAboutSD-22-03 - Supplemental - 1170 1180 Dorset Street (11)1SPOI1 - 1YR PRE3SPOI1 - 1YR POST6SPOI1 - 10YR POST17SPOI1 - 10YR PREReRe STANDARDWQVWQV1PINFILTRATION BASIN2PDP 10YR5PDP 1YRGW-WQV1GW WQVRouting Diagram for 2019-17 - HydroCAD FilePrepared by {enter your company name here}, Printed 1/26/2022HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLCSubcatReachPondLink Type II 24-hr WQv Rainfall=1.00"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 1HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment Re: Re STANDARD Runoff = 0.95 cfs @ 11.96 hrs, Volume= 0.046 af, Depth= 0.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr WQv Rainfall=1.00" Area (ac) CN Description 0.700 58 Woods/grass comb., Good, HSG B 0.700 98 Paved parking, HSG B 1.400 Weighted Average 0.700 50.00% Pervious Area 0.700 50.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Type II 24-hr WQv Rainfall=1.00"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 2HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Pond 1P: INFILTRATION BASIN Inflow Area = 1.400 ac, 50.00% Impervious, Inflow Depth = 0.40" for WQv event Inflow = 0.95 cfs @ 11.96 hrs, Volume= 0.046 af Outflow = 0.85 cfs @ 11.99 hrs, Volume= 0.046 af, Atten= 10%, Lag= 2.0 min Discarded = 0.04 cfs @ 11.99 hrs, Volume= 0.035 af Primary = 0.81 cfs @ 11.99 hrs, Volume= 0.012 af Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Peak Elev= 409.60' @ 11.99 hrs Surf.Area= 929 sf Storage= 514 cf Plug-Flow detention time= 59.5 min calculated for 0.046 af (100% of inflow) Center-of-Mass det. time= 59.5 min ( 843.1 - 783.7 ) Volume Invert Avail.Storage Storage Description #1 409.00' 906 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 409.00 790 0 0 410.00 1,022 906 906 Device Routing Invert Outlet Devices #1 Primary 409.50'3.0" x 3.0" Horiz. Orifice/Grate X 6.00 columns X 6 rows C= 0.600 in 24.0" x 24.0" Grate (56% open area) Limited to weir flow at low heads #2 Discarded 409.00'2.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.04 cfs @ 11.99 hrs HW=409.60' (Free Discharge) 2=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.81 cfs @ 11.99 hrs HW=409.60' (Free Discharge) 1=Orifice/Grate (Weir Controls 0.81 cfs @ 1.03 fps) Type II 24-hr WQv Rainfall=1.00"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 1HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment WQV: WQV Runoff = 2.47 cfs @ 11.97 hrs, Volume= 0.111 af, Depth= 0.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr WQv Rainfall=1.00" Area (ac) CN Description * 3.700 91 3.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Type II 24-hr WQv Rainfall=1.00"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 2HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Pond GW-WQV1: GW WQV Inflow Area = 3.700 ac, 0.00% Impervious, Inflow Depth = 0.36" for WQv event Inflow = 2.47 cfs @ 11.97 hrs, Volume= 0.111 af Outflow = 0.05 cfs @ 17.38 hrs, Volume= 0.111 af, Atten= 98%, Lag= 325.1 min Primary = 0.05 cfs @ 17.38 hrs, Volume= 0.111 af Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 400.48' @ 17.38 hrs Surf.Area= 2,432 sf Storage= 2,966 cf Plug-Flow detention time= 693.7 min calculated for 0.111 af (100% of inflow) Center-of-Mass det. time= 693.8 min ( 1,545.2 - 851.4 ) Volume Invert Avail.Storage Storage Description #1 401.00' 2,020 cf FOREBAY (Prismatic) Listed below (Recalc) #2 399.00' 4,320 cf GRAVEL WETLAND (Prismatic) Listed below (Recalc) 6,340 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 401.00 257 0 0 402.00 503 380 380 403.00 806 655 1,035 404.00 1,165 986 2,020 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 399.00 1,603 0 0 400.00 2,146 1,875 1,875 401.00 2,745 2,446 4,320 Device Routing Invert Outlet Devices #1 Primary 397.00'1.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.05 cfs @ 17.38 hrs HW=400.48' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.05 cfs @ 8.92 fps) Type II 24-hr 1-year Rainfall=1.89"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 1HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: POI1 - 1YR PRE Runoff = 1.51 cfs @ 11.98 hrs, Volume= 0.071 af, Depth= 0.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr 1-year Rainfall=1.89" Area (ac) CN Description * 1.720 80 1.720 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.6 Direct Entry, Type II 24-hr 1-year Rainfall=1.89"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 2HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: POI1 - 1YR POST Runoff = 5.81 cfs @ 11.96 hrs, Volume= 0.253 af, Depth= 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr 1-year Rainfall=1.89" Area (ac) CN Description * 3.700 87 3.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.3 Direct Entry, Type II 24-hr 1-year Rainfall=1.89"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 3HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Pond 5P: DP 1YR Inflow Area = 3.700 ac, 0.00% Impervious, Inflow Depth = 0.82" for 1-year event Inflow = 5.81 cfs @ 11.96 hrs, Volume= 0.253 af Outflow = 0.05 cfs @ 24.04 hrs, Volume= 0.213 af, Atten= 99%, Lag= 725.0 min Primary = 0.05 cfs @ 24.04 hrs, Volume= 0.213 af Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 400.35' @ 24.04 hrs Surf.Area= 5,433 sf Storage= 8,874 cf Plug-Flow detention time= 1,631.9 min calculated for 0.213 af (84% of inflow) Center-of-Mass det. time= 1,559.1 min ( 2,397.6 - 838.5 ) Volume Invert Avail.Storage Storage Description #1 401.00' 2,020 cf FOREBAY (Prismatic) Listed below (Recalc) #2 399.00' 4,320 cf GRAVEL WETLAND (Prismatic) Listed below (Recalc) #3 397.00' 8,392 cf DRY POND (Prismatic) Listed below (Recalc) 14,732 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 401.00 257 0 0 402.00 503 380 380 403.00 806 655 1,035 404.00 1,165 986 2,020 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 399.00 1,603 0 0 400.00 2,146 1,875 1,875 401.00 2,745 2,446 4,320 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 397.00 0 0 0 398.00 1,596 798 798 399.00 2,188 1,892 2,690 400.00 2,837 2,513 5,203 401.00 3,542 3,190 8,392 Device Routing Invert Outlet Devices #1 Primary 397.00'1.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.05 cfs @ 24.04 hrs HW=400.35' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.05 cfs @ 8.75 fps) Type II 24-hr 10-year Rainfall=3.23"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 1HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: POI1 - 10YR POST Runoff = 12.31 cfs @ 11.96 hrs, Volume= 0.550 af, Depth= 1.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=3.23" Area (ac) CN Description * 3.700 85 3.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 4.6 Direct Entry, Type II 24-hr 10-year Rainfall=3.23"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 2HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Subcatchment 17S: POI1 - 10YR PRE Runoff = 6.78 cfs @ 11.99 hrs, Volume= 0.326 af, Depth= 1.06" Runoff by SCS TR-20 method, UH=SCS, Weighted-Q, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Type II 24-hr 10-year Rainfall=3.23" Area (ac) CN Description * 3.700 74 3.700 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.6 Direct Entry, Type II 24-hr 10-year Rainfall=3.23"2019-17 - HydroCAD File Printed 1/26/2022Prepared by {enter your company name here} Page 3HydroCAD® 10.10-4b s/n 05093 © 2020 HydroCAD Software Solutions LLC Summary for Pond 2P: DP 10YR Inflow Area = 3.700 ac, 0.00% Impervious, Inflow Depth = 1.78" for 10-year event Inflow = 12.31 cfs @ 11.96 hrs, Volume= 0.550 af Outflow = 2.64 cfs @ 12.09 hrs, Volume= 0.503 af, Atten= 79%, Lag= 8.1 min Primary = 2.64 cfs @ 12.09 hrs, Volume= 0.503 af Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs / 2 Peak Elev= 400.74' @ 12.09 hrs Surf.Area= 5,952 sf Storage= 11,141 cf Plug-Flow detention time= 760.8 min calculated for 0.503 af (92% of inflow) Center-of-Mass det. time= 716.2 min ( 1,537.4 - 821.3 ) Volume Invert Avail.Storage Storage Description #1 401.00' 2,020 cf FOREBAY (Prismatic) Listed below (Recalc) #2 399.00' 4,320 cf GRAVEL WETLAND (Prismatic) Listed below (Recalc) #3 397.00' 8,392 cf DRY POND (Prismatic) Listed below (Recalc) 14,732 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 401.00 257 0 0 402.00 503 380 380 403.00 806 655 1,035 404.00 1,165 986 2,020 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 399.00 1,603 0 0 400.00 2,146 1,875 1,875 401.00 2,745 2,446 4,320 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 397.00 0 0 0 398.00 1,596 798 798 399.00 2,188 1,892 2,690 400.00 2,837 2,513 5,203 401.00 3,542 3,190 8,392 Device Routing Invert Outlet Devices #1 Primary 397.00'1.0" Vert. Orifice/Grate C= 0.600 Limited to weir flow at low heads #2 Primary 400.40'24.0" W x 6.0" H Vert. Orifice/Grate X 2.00 C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=2.63 cfs @ 12.09 hrs HW=400.74' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.05 cfs @ 9.26 fps) 2=Orifice/Grate (Orifice Controls 2.58 cfs @ 1.88 fps)