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HomeMy WebLinkAbout23SITE5 - 2040 Rte 32 Stormwater Analysis dated 7-6-23 and rec'd 7-10-231 - EX Ex. Area 1 1 - P Proposed Area 1, 2, and 3 4 - P Proposed Area 4 P - 3 Detention Basin Analysis 1 Analysis 1 Routing Diagram for 2040 NL Turnpike Montville Existing and Proposed Stormwater Analysis - July 2023 Prepared by Microsoft, Printed 7/6/2023 HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcat Reach Pond Link Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 2HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - EX: Ex. Area 1 Runoff = 0.71 cfs @ 12.34 hrs, Volume= 0.107 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 2-Year Rainfall=3.39" Area (sf) CN Description 115,773 60 Woods, Fair, HSG B 115,773 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.4 100 0.0900 0.15 Sheet Flow, Wooded Woods: Light underbrush n= 0.400 P2= 3.39" 6.0 460 0.0643 1.27 Shallow Concentrated Flow, Balance of Flow Woodland Kv= 5.0 fps 17.4 560 Total Subcatchment 1 - EX: Ex. Area 1 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Type III 24-hr 2-Year Rainfall=3.39" Runoff Area=115,773 sf Runoff Volume=0.107 af Runoff Depth=0.48" Flow Length=560' Tc=17.4 min CN=60 0.71 cfs Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 3HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff = 2.30 cfs @ 12.17 hrs, Volume= 0.211 af, Depth= 2.63" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 2-Year Rainfall=3.39" Area (sf) CN Description 5,376 60 Woods, Fair, HSG B 28,855 98 Paved parking, HSG B 7,696 98 Roofs, HSG B 41,927 93 Weighted Average 5,376 12.82% Pervious Area 36,551 87.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0900 0.14 Sheet Flow, Grass Grass: Bermuda n= 0.410 P2= 3.39" 0.5 38 0.0286 1.18 Shallow Concentrated Flow, Flow to Pavement Short Grass Pasture Kv= 7.0 fps 0.5 132 0.0423 4.18 Shallow Concentrated Flow, Balance of Flow Path to CB 2 Paved Kv= 20.3 fps 0.3 160 0.0300 9.12 11.19 Pipe Channel, HDPE_Round 15" 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' n= 0.013 Corrugated PE, smooth interior 13.0 430 Total Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 4HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 2 1 0 Type III 24-hr 2-Year Rainfall=3.39" Runoff Area=41,927 sf Runoff Volume=0.211 af Runoff Depth=2.63" Flow Length=430' Tc=13.0 min CN=93 2.30 cfs Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 5HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 4 - P: Proposed Area 4 Runoff = 0.48 cfs @ 12.28 hrs, Volume= 0.069 af, Depth= 0.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 2-Year Rainfall=3.39" Area (sf) CN Description 73,846 60 Woods, Fair, HSG B 73,846 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.6 100 0.0700 0.13 Sheet Flow, Existing Wooded Area Woods: Light underbrush n= 0.400 P2= 3.39" 1.6 130 0.0692 1.32 Shallow Concentrated Flow, Concentrated to Channel Woodland Kv= 5.0 fps 0.4 160 0.0825 6.51 26.06 Channel Flow, Balance of Flow to Analysis Point Area= 4.0 sf Perim= 6.0' r= 0.67' n= 0.050 Mountain streams w/large boulders 14.6 390 Total Subcatchment 4 - P: Proposed Area 4 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.52 0.5 0.48 0.46 0.44 0.42 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 Type III 24-hr 2-Year Rainfall=3.39" Runoff Area=73,846 sf Runoff Volume=0.069 af Runoff Depth=0.48" Flow Length=390' Tc=14.6 min CN=60 0.48 cfs Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 6HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Pond P - 3: Detention Basin Inflow Area = 0.963 ac, 87.18% Impervious, Inflow Depth = 2.63" for 2-Year event Inflow = 2.30 cfs @ 12.17 hrs, Volume= 0.211 af Outflow = 0.43 cfs @ 12.72 hrs, Volume= 0.211 af, Atten= 81%, Lag= 32.8 min Discarded = 0.29 cfs @ 11.74 hrs, Volume= 0.185 af Primary = 0.15 cfs @ 12.72 hrs, Volume= 0.025 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 158.76' @ 12.72 hrs Surf.Area= 4,131 sf Storage= 3,124 cf Plug-Flow detention time= 62.3 min calculated for 0.211 af (100% of inflow) Center-of-Mass det. time= 62.3 min ( 859.4 - 797.2 ) Volume Invert Avail.Storage Storage Description #1 158.00' 22,721 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 158.00 4,131 0 0 159.00 4,131 4,131 4,131 160.00 4,131 4,131 8,262 161.00 4,131 4,131 12,393 162.00 4,131 4,131 16,524 163.00 4,131 4,131 20,655 163.50 4,131 2,066 22,721 Device Routing Invert Outlet Devices #1 Primary 158.25'3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 161.00'4.0" Vert. Orifice/Grate C= 0.600 #3 Primary 163.50'24.0" x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Discarded 158.00'3.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.29 cfs @ 11.74 hrs HW=158.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.29 cfs) Primary OutFlow Max=0.15 cfs @ 12.72 hrs HW=158.76' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.15 cfs @ 2.97 fps) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 7HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Pond P - 3: Detention Basin Inflow Outflow Discarded Primary Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 2 1 0 Inflow Area=0.963 ac Peak Elev=158.76' Storage=3,124 cf 2.30 cfs 0.43 cfs 0.29 cfs 0.15 cfs Type III 24-hr 2-Year Rainfall=3.39"2040 NL Turnpike Montville Existing and Proposed Sto Printed 7/6/2023Prepared by Microsoft Page 8HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Link Analysis 1: Analysis 1 Inflow Area = 2.658 ac, 31.57% Impervious, Inflow Depth = 0.42" for 2-Year event Inflow = 0.58 cfs @ 12.32 hrs, Volume= 0.094 af Primary = 0.58 cfs @ 12.32 hrs, Volume= 0.094 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Link Analysis 1: Analysis 1 InflowPrimary Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=2.658 ac 0.58 cfs0.58 cfs Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 9HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - EX: Ex. Area 1 Runoff = 2.61 cfs @ 12.27 hrs, Volume= 0.292 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=5.03" Area (sf) CN Description 115,773 60 Woods, Fair, HSG B 115,773 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.4 100 0.0900 0.15 Sheet Flow, Wooded Woods: Light underbrush n= 0.400 P2= 3.39" 6.0 460 0.0643 1.27 Shallow Concentrated Flow, Balance of Flow Woodland Kv= 5.0 fps 17.4 560 Total Subcatchment 1 - EX: Ex. Area 1 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 2 1 0 Type III 24-hr 10-Year Rainfall=5.03" Runoff Area=115,773 sf Runoff Volume=0.292 af Runoff Depth=1.32" Flow Length=560' Tc=17.4 min CN=60 2.61 cfs Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 10HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff = 3.60 cfs @ 12.17 hrs, Volume= 0.339 af, Depth= 4.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=5.03" Area (sf) CN Description 5,376 60 Woods, Fair, HSG B 28,855 98 Paved parking, HSG B 7,696 98 Roofs, HSG B 41,927 93 Weighted Average 5,376 12.82% Pervious Area 36,551 87.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0900 0.14 Sheet Flow, Grass Grass: Bermuda n= 0.410 P2= 3.39" 0.5 38 0.0286 1.18 Shallow Concentrated Flow, Flow to Pavement Short Grass Pasture Kv= 7.0 fps 0.5 132 0.0423 4.18 Shallow Concentrated Flow, Balance of Flow Path to CB 2 Paved Kv= 20.3 fps 0.3 160 0.0300 9.12 11.19 Pipe Channel, HDPE_Round 15" 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' n= 0.013 Corrugated PE, smooth interior 13.0 430 Total Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 11HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 10-Year Rainfall=5.03" Runoff Area=41,927 sf Runoff Volume=0.339 af Runoff Depth=4.23" Flow Length=430' Tc=13.0 min CN=93 3.60 cfs Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 12HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 4 - P: Proposed Area 4 Runoff = 1.78 cfs @ 12.22 hrs, Volume= 0.186 af, Depth= 1.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=5.03" Area (sf) CN Description 73,846 60 Woods, Fair, HSG B 73,846 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.6 100 0.0700 0.13 Sheet Flow, Existing Wooded Area Woods: Light underbrush n= 0.400 P2= 3.39" 1.6 130 0.0692 1.32 Shallow Concentrated Flow, Concentrated to Channel Woodland Kv= 5.0 fps 0.4 160 0.0825 6.51 26.06 Channel Flow, Balance of Flow to Analysis Point Area= 4.0 sf Perim= 6.0' r= 0.67' n= 0.050 Mountain streams w/large boulders 14.6 390 Total Subcatchment 4 - P: Proposed Area 4 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 1 0 Type III 24-hr 10-Year Rainfall=5.03" Runoff Area=73,846 sf Runoff Volume=0.186 af Runoff Depth=1.32" Flow Length=390' Tc=14.6 min CN=60 1.78 cfs Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 13HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Pond P - 3: Detention Basin Inflow Area = 0.963 ac, 87.18% Impervious, Inflow Depth = 4.23" for 10-Year event Inflow = 3.60 cfs @ 12.17 hrs, Volume= 0.339 af Outflow = 0.52 cfs @ 12.85 hrs, Volume= 0.339 af, Atten= 86%, Lag= 40.7 min Discarded = 0.29 cfs @ 11.28 hrs, Volume= 0.264 af Primary = 0.23 cfs @ 12.85 hrs, Volume= 0.075 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 159.35' @ 12.85 hrs Surf.Area= 4,131 sf Storage= 5,581 cf Plug-Flow detention time= 94.9 min calculated for 0.339 af (100% of inflow) Center-of-Mass det. time= 94.9 min ( 879.5 - 784.6 ) Volume Invert Avail.Storage Storage Description #1 158.00' 22,721 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 158.00 4,131 0 0 159.00 4,131 4,131 4,131 160.00 4,131 4,131 8,262 161.00 4,131 4,131 12,393 162.00 4,131 4,131 16,524 163.00 4,131 4,131 20,655 163.50 4,131 2,066 22,721 Device Routing Invert Outlet Devices #1 Primary 158.25'3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 161.00'4.0" Vert. Orifice/Grate C= 0.600 #3 Primary 163.50'24.0" x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Discarded 158.00'3.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.29 cfs @ 11.28 hrs HW=158.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.29 cfs) Primary OutFlow Max=0.23 cfs @ 12.85 hrs HW=159.35' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.23 cfs @ 4.76 fps) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 14HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Pond P - 3: Detention Basin Inflow Outflow Discarded Primary Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Inflow Area=0.963 ac Peak Elev=159.35' Storage=5,581 cf 3.60 cfs 0.52 cfs 0.29 cfs0.23 cfs Type III 24-hr 10-Year Rainfall=5.03"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 15HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Link Analysis 1: Analysis 1 Inflow Area = 2.658 ac, 31.57% Impervious, Inflow Depth = 1.18" for 10-Year event Inflow = 1.94 cfs @ 12.23 hrs, Volume= 0.261 af Primary = 1.94 cfs @ 12.23 hrs, Volume= 0.261 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Link Analysis 1: Analysis 1 InflowPrimary Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 2 1 0 Inflow Area=2.658 ac 1.94 cfs1.94 cfs Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 16HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - EX: Ex. Area 1 Runoff = 4.46 cfs @ 12.26 hrs, Volume= 0.470 af, Depth= 2.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 25-Year Rainfall=6.30" Area (sf) CN Description 115,773 60 Woods, Fair, HSG B 115,773 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.4 100 0.0900 0.15 Sheet Flow, Wooded Woods: Light underbrush n= 0.400 P2= 3.39" 6.0 460 0.0643 1.27 Shallow Concentrated Flow, Balance of Flow Woodland Kv= 5.0 fps 17.4 560 Total Subcatchment 1 - EX: Ex. Area 1 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 25-Year Rainfall=6.30" Runoff Area=115,773 sf Runoff Volume=0.470 af Runoff Depth=2.12" Flow Length=560' Tc=17.4 min CN=60 4.46 cfs Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 17HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff = 4.60 cfs @ 12.17 hrs, Volume= 0.439 af, Depth= 5.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 25-Year Rainfall=6.30" Area (sf) CN Description 5,376 60 Woods, Fair, HSG B 28,855 98 Paved parking, HSG B 7,696 98 Roofs, HSG B 41,927 93 Weighted Average 5,376 12.82% Pervious Area 36,551 87.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0900 0.14 Sheet Flow, Grass Grass: Bermuda n= 0.410 P2= 3.39" 0.5 38 0.0286 1.18 Shallow Concentrated Flow, Flow to Pavement Short Grass Pasture Kv= 7.0 fps 0.5 132 0.0423 4.18 Shallow Concentrated Flow, Balance of Flow Path to CB 2 Paved Kv= 20.3 fps 0.3 160 0.0300 9.12 11.19 Pipe Channel, HDPE_Round 15" 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' n= 0.013 Corrugated PE, smooth interior 13.0 430 Total Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 18HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 5 4 3 2 1 0 Type III 24-hr 25-Year Rainfall=6.30" Runoff Area=41,927 sf Runoff Volume=0.439 af Runoff Depth=5.48" Flow Length=430' Tc=13.0 min CN=93 4.60 cfs Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 19HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 4 - P: Proposed Area 4 Runoff = 3.05 cfs @ 12.21 hrs, Volume= 0.300 af, Depth= 2.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 25-Year Rainfall=6.30" Area (sf) CN Description 73,846 60 Woods, Fair, HSG B 73,846 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.6 100 0.0700 0.13 Sheet Flow, Existing Wooded Area Woods: Light underbrush n= 0.400 P2= 3.39" 1.6 130 0.0692 1.32 Shallow Concentrated Flow, Concentrated to Channel Woodland Kv= 5.0 fps 0.4 160 0.0825 6.51 26.06 Channel Flow, Balance of Flow to Analysis Point Area= 4.0 sf Perim= 6.0' r= 0.67' n= 0.050 Mountain streams w/large boulders 14.6 390 Total Subcatchment 4 - P: Proposed Area 4 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Type III 24-hr 25-Year Rainfall=6.30" Runoff Area=73,846 sf Runoff Volume=0.300 af Runoff Depth=2.12" Flow Length=390' Tc=14.6 min CN=60 3.05 cfs Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 20HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Pond P - 3: Detention Basin Inflow Area = 0.963 ac, 87.18% Impervious, Inflow Depth = 5.48" for 25-Year event Inflow = 4.60 cfs @ 12.17 hrs, Volume= 0.439 af Outflow = 0.58 cfs @ 12.96 hrs, Volume= 0.439 af, Atten= 88%, Lag= 47.4 min Discarded = 0.29 cfs @ 10.69 hrs, Volume= 0.318 af Primary = 0.29 cfs @ 12.96 hrs, Volume= 0.121 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 159.86' @ 12.96 hrs Surf.Area= 4,131 sf Storage= 7,696 cf Plug-Flow detention time= 121.7 min calculated for 0.439 af (100% of inflow) Center-of-Mass det. time= 121.6 min ( 899.8 - 778.1 ) Volume Invert Avail.Storage Storage Description #1 158.00' 22,721 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 158.00 4,131 0 0 159.00 4,131 4,131 4,131 160.00 4,131 4,131 8,262 161.00 4,131 4,131 12,393 162.00 4,131 4,131 16,524 163.00 4,131 4,131 20,655 163.50 4,131 2,066 22,721 Device Routing Invert Outlet Devices #1 Primary 158.25'3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 161.00'4.0" Vert. Orifice/Grate C= 0.600 #3 Primary 163.50'24.0" x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Discarded 158.00'3.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.29 cfs @ 10.69 hrs HW=158.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.29 cfs) Primary OutFlow Max=0.29 cfs @ 12.96 hrs HW=159.86' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.29 cfs @ 5.87 fps) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 21HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Pond P - 3: Detention Basin Inflow Outflow Discarded Primary Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 5 4 3 2 1 0 Inflow Area=0.963 ac Peak Elev=159.86' Storage=7,696 cf 4.60 cfs 0.58 cfs 0.29 cfs 0.29 cfs Type III 24-hr 25-Year Rainfall=6.30"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 22HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Link Analysis 1: Analysis 1 Inflow Area = 2.658 ac, 31.57% Impervious, Inflow Depth = 1.90" for 25-Year event Inflow = 3.26 cfs @ 12.22 hrs, Volume= 0.421 af Primary = 3.26 cfs @ 12.22 hrs, Volume= 0.421 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Link Analysis 1: Analysis 1 InflowPrimary Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Inflow Area=2.658 ac 3.26 cfs3.26 cfs Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 23HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - EX: Ex. Area 1 Runoff = 6.38 cfs @ 12.24 hrs, Volume= 0.653 af, Depth= 2.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 50-Year Rainfall=7.48" Area (sf) CN Description 115,773 60 Woods, Fair, HSG B 115,773 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.4 100 0.0900 0.15 Sheet Flow, Wooded Woods: Light underbrush n= 0.400 P2= 3.39" 6.0 460 0.0643 1.27 Shallow Concentrated Flow, Balance of Flow Woodland Kv= 5.0 fps 17.4 560 Total Subcatchment 1 - EX: Ex. Area 1 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Type III 24-hr 50-Year Rainfall=7.48" Runoff Area=115,773 sf Runoff Volume=0.653 af Runoff Depth=2.95" Flow Length=560' Tc=17.4 min CN=60 6.38 cfs Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 24HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff = 5.52 cfs @ 12.17 hrs, Volume= 0.533 af, Depth= 6.65" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 50-Year Rainfall=7.48" Area (sf) CN Description 5,376 60 Woods, Fair, HSG B 28,855 98 Paved parking, HSG B 7,696 98 Roofs, HSG B 41,927 93 Weighted Average 5,376 12.82% Pervious Area 36,551 87.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0900 0.14 Sheet Flow, Grass Grass: Bermuda n= 0.410 P2= 3.39" 0.5 38 0.0286 1.18 Shallow Concentrated Flow, Flow to Pavement Short Grass Pasture Kv= 7.0 fps 0.5 132 0.0423 4.18 Shallow Concentrated Flow, Balance of Flow Path to CB 2 Paved Kv= 20.3 fps 0.3 160 0.0300 9.12 11.19 Pipe Channel, HDPE_Round 15" 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' n= 0.013 Corrugated PE, smooth interior 13.0 430 Total Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 25HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 6 5 4 3 2 1 0 Type III 24-hr 50-Year Rainfall=7.48" Runoff Area=41,927 sf Runoff Volume=0.533 af Runoff Depth=6.65" Flow Length=430' Tc=13.0 min CN=93 5.52 cfs Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 26HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 4 - P: Proposed Area 4 Runoff = 4.36 cfs @ 12.21 hrs, Volume= 0.417 af, Depth= 2.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 50-Year Rainfall=7.48" Area (sf) CN Description 73,846 60 Woods, Fair, HSG B 73,846 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.6 100 0.0700 0.13 Sheet Flow, Existing Wooded Area Woods: Light underbrush n= 0.400 P2= 3.39" 1.6 130 0.0692 1.32 Shallow Concentrated Flow, Concentrated to Channel Woodland Kv= 5.0 fps 0.4 160 0.0825 6.51 26.06 Channel Flow, Balance of Flow to Analysis Point Area= 4.0 sf Perim= 6.0' r= 0.67' n= 0.050 Mountain streams w/large boulders 14.6 390 Total Subcatchment 4 - P: Proposed Area 4 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 50-Year Rainfall=7.48" Runoff Area=73,846 sf Runoff Volume=0.417 af Runoff Depth=2.95" Flow Length=390' Tc=14.6 min CN=60 4.36 cfs Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 27HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Pond P - 3: Detention Basin Inflow Area = 0.963 ac, 87.18% Impervious, Inflow Depth = 6.65" for 50-Year event Inflow = 5.52 cfs @ 12.17 hrs, Volume= 0.533 af Outflow = 0.62 cfs @ 13.05 hrs, Volume= 0.533 af, Atten= 89%, Lag= 52.9 min Discarded = 0.29 cfs @ 10.20 hrs, Volume= 0.363 af Primary = 0.33 cfs @ 13.05 hrs, Volume= 0.170 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 160.37' @ 13.05 hrs Surf.Area= 4,131 sf Storage= 9,798 cf Plug-Flow detention time= 147.4 min calculated for 0.533 af (100% of inflow) Center-of-Mass det. time= 147.4 min ( 920.9 - 773.6 ) Volume Invert Avail.Storage Storage Description #1 158.00' 22,721 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 158.00 4,131 0 0 159.00 4,131 4,131 4,131 160.00 4,131 4,131 8,262 161.00 4,131 4,131 12,393 162.00 4,131 4,131 16,524 163.00 4,131 4,131 20,655 163.50 4,131 2,066 22,721 Device Routing Invert Outlet Devices #1 Primary 158.25'3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 161.00'4.0" Vert. Orifice/Grate C= 0.600 #3 Primary 163.50'24.0" x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Discarded 158.00'3.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.29 cfs @ 10.20 hrs HW=158.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.29 cfs) Primary OutFlow Max=0.33 cfs @ 13.05 hrs HW=160.37' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.33 cfs @ 6.80 fps) 2=Orifice/Grate ( Controls 0.00 cfs) 3=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 28HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Pond P - 3: Detention Basin Inflow Outflow Discarded Primary Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 6 5 4 3 2 1 0 Inflow Area=0.963 ac Peak Elev=160.37' Storage=9,798 cf 5.52 cfs 0.62 cfs 0.29 cfs 0.33 cfs Type III 24-hr 50-Year Rainfall=7.48"2040 NL Turnpike Montville Existing and Proposed St Printed 7/6/2023Prepared by Microsoft Page 29HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Link Analysis 1: Analysis 1 Inflow Area = 2.658 ac, 31.57% Impervious, Inflow Depth = 2.65" for 50-Year event Inflow = 4.60 cfs @ 12.21 hrs, Volume= 0.587 af Primary = 4.60 cfs @ 12.21 hrs, Volume= 0.587 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Link Analysis 1: Analysis 1 InflowPrimary Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 5 4 3 2 1 0 Inflow Area=2.658 ac 4.60 cfs4.60 cfs Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 30HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - EX: Ex. Area 1 Runoff = 8.82 cfs @ 12.24 hrs, Volume= 0.887 af, Depth= 4.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 100-Year Rainfall=8.88" Area (sf) CN Description 115,773 60 Woods, Fair, HSG B 115,773 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.4 100 0.0900 0.15 Sheet Flow, Wooded Woods: Light underbrush n= 0.400 P2= 3.39" 6.0 460 0.0643 1.27 Shallow Concentrated Flow, Balance of Flow Woodland Kv= 5.0 fps 17.4 560 Total Subcatchment 1 - EX: Ex. Area 1 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 100-Year Rainfall=8.88" Runoff Area=115,773 sf Runoff Volume=0.887 af Runoff Depth=4.01" Flow Length=560' Tc=17.4 min CN=60 8.82 cfs Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 31HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff = 6.61 cfs @ 12.17 hrs, Volume= 0.645 af, Depth= 8.04" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 100-Year Rainfall=8.88" Area (sf) CN Description 5,376 60 Woods, Fair, HSG B 28,855 98 Paved parking, HSG B 7,696 98 Roofs, HSG B 41,927 93 Weighted Average 5,376 12.82% Pervious Area 36,551 87.18% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0900 0.14 Sheet Flow, Grass Grass: Bermuda n= 0.410 P2= 3.39" 0.5 38 0.0286 1.18 Shallow Concentrated Flow, Flow to Pavement Short Grass Pasture Kv= 7.0 fps 0.5 132 0.0423 4.18 Shallow Concentrated Flow, Balance of Flow Path to CB 2 Paved Kv= 20.3 fps 0.3 160 0.0300 9.12 11.19 Pipe Channel, HDPE_Round 15" 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' n= 0.013 Corrugated PE, smooth interior 13.0 430 Total Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 32HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Subcatchment 1 - P: Proposed Area 1, 2, and 3 Runoff Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Type III 24-hr 100-Year Rainfall=8.88" Runoff Area=41,927 sf Runoff Volume=0.645 af Runoff Depth=8.04" Flow Length=430' Tc=13.0 min CN=93 6.61 cfs Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 33HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Subcatchment 4 - P: Proposed Area 4 Runoff = 6.02 cfs @ 12.21 hrs, Volume= 0.566 af, Depth= 4.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Type III 24-hr 100-Year Rainfall=8.88" Area (sf) CN Description 73,846 60 Woods, Fair, HSG B 73,846 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.6 100 0.0700 0.13 Sheet Flow, Existing Wooded Area Woods: Light underbrush n= 0.400 P2= 3.39" 1.6 130 0.0692 1.32 Shallow Concentrated Flow, Concentrated to Channel Woodland Kv= 5.0 fps 0.4 160 0.0825 6.51 26.06 Channel Flow, Balance of Flow to Analysis Point Area= 4.0 sf Perim= 6.0' r= 0.67' n= 0.050 Mountain streams w/large boulders 14.6 390 Total Subcatchment 4 - P: Proposed Area 4 Runoff Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 6 5 4 3 2 1 0 Type III 24-hr 100-Year Rainfall=8.88" Runoff Area=73,846 sf Runoff Volume=0.566 af Runoff Depth=4.01" Flow Length=390' Tc=14.6 min CN=60 6.02 cfs Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 34HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Pond P - 3: Detention Basin Inflow Area = 0.963 ac, 87.18% Impervious, Inflow Depth = 8.04" for 100-Year event Inflow = 6.61 cfs @ 12.17 hrs, Volume= 0.645 af Outflow = 0.67 cfs @ 13.15 hrs, Volume= 0.645 af, Atten= 90%, Lag= 58.6 min Discarded = 0.29 cfs @ 9.57 hrs, Volume= 0.410 af Primary = 0.38 cfs @ 13.15 hrs, Volume= 0.235 af Routing by Stor-Ind method, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Peak Elev= 161.01' @ 13.15 hrs Surf.Area= 4,131 sf Storage= 12,415 cf Plug-Flow detention time= 178.2 min calculated for 0.645 af (100% of inflow) Center-of-Mass det. time= 178.1 min ( 947.4 - 769.3 ) Volume Invert Avail.Storage Storage Description #1 158.00' 22,721 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 158.00 4,131 0 0 159.00 4,131 4,131 4,131 160.00 4,131 4,131 8,262 161.00 4,131 4,131 12,393 162.00 4,131 4,131 16,524 163.00 4,131 4,131 20,655 163.50 4,131 2,066 22,721 Device Routing Invert Outlet Devices #1 Primary 158.25'3.0" Vert. Orifice/Grate C= 0.600 #2 Primary 161.00'4.0" Vert. Orifice/Grate C= 0.600 #3 Primary 163.50'24.0" x 36.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads #4 Discarded 158.00'3.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.29 cfs @ 9.57 hrs HW=158.06' (Free Discharge) 4=Exfiltration (Exfiltration Controls 0.29 cfs) Primary OutFlow Max=0.38 cfs @ 13.15 hrs HW=161.01' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.38 cfs @ 7.81 fps) 2=Orifice/Grate (Orifice Controls 0.00 cfs @ 0.25 fps) 3=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 35HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Pond P - 3: Detention Basin Inflow Outflow Discarded Primary Hydrograph Time (hours)3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Inflow Area=0.963 ac Peak Elev=161.01' Storage=12,415 cf 6.61 cfs 0.67 cfs 0.29 cfs 0.38 cfs Type III 24-hr 100-Year Rainfall=8.88"2040 NL Turnpike Montville Existing and Proposed S Printed 7/6/2023Prepared by Microsoft Page 36HydroCAD® 10.00-20 s/n 05120 © 2017 HydroCAD Software Solutions LLC Summary for Link Analysis 1: Analysis 1 Inflow Area = 2.658 ac, 31.57% Impervious, Inflow Depth = 3.62" for 100-Year event Inflow = 6.30 cfs @ 12.21 hrs, Volume= 0.801 af Primary = 6.30 cfs @ 12.21 hrs, Volume= 0.801 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.01 hrs Link Analysis 1: Analysis 1 InflowPrimary Hydrograph Time (hours) 3029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Inflow Area=2.658 ac 6.30 cfs6.30 cfs