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07.VBF - HYDROCAD POST - 052214POST-DEV P01 DIRECT RUNOFF TO WETLAND 1 P02 DA:P8 (TO POND B) P03 DA:P8 (TO POND B) P10 POND 1 P11 Pond 2 P20 POST DEVELOPMENT RUNOFF Routing Diagram for 04.Routing - Bentz - 051514 Prepared by Sathre-Bergquist, Inc., Printed 5/22/2014 HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Subcat Reach Pond Link POST DEVELOPMENT 04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 2HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Area Listing (selected nodes) Area (acres) CN Description (subcatchment-numbers) 8.200 80 1/2 acre lots, 25% imp, HSG C (P02, P03) 3.000 72 1/3 acre lots, 30% imp, HSG B (P02) 4.000 61 >75% Grass cover, Good, HSG B (P02) 6.400 74 >75% Grass cover, Good, HSG C (P01) 21.600 74 TOTAL AREA POST DEVELOPMENT 04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 3HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Soil Listing (selected nodes) Area (acres) Soil Group Subcatchment Numbers 0.000 HSG A 7.000 HSG B P02 14.600 HSG C P01, P02, P03 0.000 HSG D 0.000 Other 21.600 TOTAL AREA POST DEVELOPMENT 04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 4HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Ground Covers (selected nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchment Numbers 0.000 0.000 8.200 0.000 0.000 8.200 1/2 acre lots, 25% imp P02, P03 0.000 3.000 0.000 0.000 0.000 3.000 1/3 acre lots, 30% imp P02 0.000 4.000 6.400 0.000 0.000 10.400 >75% Grass cover, Good P01, P02 0.000 7.000 14.600 0.000 0.000 21.600 TOTAL AREA POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 5HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Time span=0.00-100.00 hrs, dt=0.02 hrs, 5001 points x 3 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=0.83"Subcatchment P01: DIRECT RUNOFF TO Tc=20.0 min CN=74 Runoff=5.43 cfs 0.441 af Runoff Area=13.100 ac 18.51% Impervious Runoff Depth=0.73"Subcatchment P02: DA:P8 (TO POND B) Tc=40.0 min CN=72 Runoff=5.88 cfs 0.799 af Runoff Area=2.100 ac 25.00% Impervious Runoff Depth=1.15"Subcatchment P03: DA:P8 (TO POND B) Tc=20.0 min CN=80 Runoff=2.64 cfs 0.202 af Peak Elev=956.96' Storage=20,928 cf Inflow=5.88 cfs 0.799 afPond P10: POND 1 Primary=0.37 cfs 0.783 af Secondary=0.00 cfs 0.000 af Outflow=0.37 cfs 0.783 af Peak Elev=958.35' Storage=3,246 cf Inflow=2.64 cfs 0.202 afPond P11: Pond 2 Primary=0.77 cfs 0.201 af Secondary=0.00 cfs 0.000 af Outflow=0.77 cfs 0.201 af Inflow=5.77 cfs 1.425 afLink P20: POST DEVELOPMENT RUNOFF Primary=5.77 cfs 1.425 af Total Runoff Area = 21.600 ac Runoff Volume = 1.442 af Average Runoff Depth = 0.80" 86.34% Pervious = 18.650 ac 13.66% Impervious = 2.950 ac POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 6HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff = 5.43 cfs @ 12.14 hrs, Volume= 0.441 af, Depth= 0.83" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 2-YR Rainfall=2.87" Area (ac) CN Description 6.400 74 >75% Grass cover, Good, HSG C 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 2-YR Rainfall=2.87" Runoff Area=6.400 ac Runoff Volume=0.441 af Runoff Depth=0.83" Tc=20.0 min CN=74 5.43 cfs POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 7HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P02: DA:P8 (TO POND B) Runoff = 5.88 cfs @ 12.41 hrs, Volume= 0.799 af, Depth= 0.73" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 2-YR Rainfall=2.87" Area (ac) CN Description 4.000 61 >75% Grass cover, Good, HSG B 6.100 80 1/2 acre lots, 25% imp, HSG C 3.000 72 1/3 acre lots, 30% imp, HSG B 13.100 72 Weighted Average 10.675 81.49% Pervious Area 2.425 18.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 40.0 Direct Entry, Subcatchment P02: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)6 5 4 3 2 1 0 Type II 24-hr 2-YR Rainfall=2.87" Runoff Area=13.100 ac Runoff Volume=0.799 af Runoff Depth=0.73" Tc=40.0 min CN=72 5.88 cfs POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 8HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P03: DA:P8 (TO POND B) Runoff = 2.64 cfs @ 12.13 hrs, Volume= 0.202 af, Depth= 1.15" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 2-YR Rainfall=2.87" Area (ac) CN Description 2.100 80 1/2 acre lots, 25% imp, HSG C 1.575 75.00% Pervious Area 0.525 25.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P03: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)2 1 0 Type II 24-hr 2-YR Rainfall=2.87" Runoff Area=2.100 ac Runoff Volume=0.202 af Runoff Depth=1.15" Tc=20.0 min CN=80 2.64 cfs POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 9HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P10: POND 1 Inflow Area = 13.100 ac, 18.51% Impervious, Inflow Depth = 0.73" for 2-YR event Inflow = 5.88 cfs @ 12.41 hrs, Volume= 0.799 af Outflow = 0.37 cfs @ 18.55 hrs, Volume= 0.783 af, Atten= 94%, Lag= 368.6 min Primary = 0.37 cfs @ 18.55 hrs, Volume= 0.783 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 956.96' @ 18.55 hrs Surf.Area= 23,736 sf Storage= 20,928 cf Plug-Flow detention time= 810.9 min calculated for 0.783 af (98% of inflow) Center-of-Mass det. time= 799.8 min ( 1,704.9 - 905.0 ) Volume Invert Avail.Storage Storage Description #1 956.00' 110,867 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 956.00 20,000 755.0 0 0 20,000 958.00 28,160 830.0 47,928 47,928 29,592 960.00 34,900 885.0 62,940 110,867 37,291 Device Routing Invert Outlet Devices #1 Primary 956.00'24.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 956.00' / 955.00' S= 0.0167 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.14 sf #2 Device 1 957.00'Weir Wall, Cv= 2.62 (C= 3.28) Head (feet) 0.00 4.00 Width (feet) 4.00 4.00 #3 Device 1 956.00'4.0" Vert. Simulate 6" Dtile in Sand Media C= 0.600 #4 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=0.37 cfs @ 18.55 hrs HW=956.96' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Passes 0.37 cfs of 6.23 cfs potential flow) 2=Weir Wall ( Controls 0.00 cfs) 3=Simulate 6" Dtile in Sand Media (Orifice Controls 0.37 cfs @ 4.28 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=956.00' TW=0.00' (Dynamic Tailwater) 4=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 10HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P10: POND 1 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)6 5 4 3 2 1 0 Inflow Area=13.100 ac Peak Elev=956.96' Storage=20,928 cf 5.88 cfs 0.37 cfs 0.37 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 11HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P11: Pond 2 Inflow Area = 2.100 ac, 25.00% Impervious, Inflow Depth = 1.15" for 2-YR event Inflow = 2.64 cfs @ 12.13 hrs, Volume= 0.202 af Outflow = 0.77 cfs @ 12.51 hrs, Volume= 0.201 af, Atten= 71%, Lag= 22.4 min Primary = 0.77 cfs @ 12.51 hrs, Volume= 0.201 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 958.35' @ 12.51 hrs Surf.Area= 9,586 sf Storage= 3,246 cf Plug-Flow detention time= 163.1 min calculated for 0.201 af (100% of inflow) Center-of-Mass det. time= 161.1 min ( 1,019.3 - 858.2 ) Volume Invert Avail.Storage Storage Description #1 958.00' 21,825 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 958.00 9,000 375.0 0 0 9,000 959.00 10,725 400.0 9,850 9,850 10,590 960.00 13,270 440.0 11,975 21,825 13,296 Device Routing Invert Outlet Devices #1 Primary 958.00'15.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 958.00' / 955.00' S= 0.0500 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=0.77 cfs @ 12.51 hrs HW=958.35' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Inlet Controls 0.77 cfs @ 2.74 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=958.00' TW=0.00' (Dynamic Tailwater) 2=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 12HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P11: Pond 2 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)2 1 0 Inflow Area=2.100 ac Peak Elev=958.35' Storage=3,246 cf 2.64 cfs 0.77 cfs 0.77 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 2-YR Rainfall=2.87"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 13HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Link P20: POST DEVELOPMENT RUNOFF Inflow Area = 21.600 ac, 13.66% Impervious, Inflow Depth > 0.79" for 2-YR event Inflow = 5.77 cfs @ 12.15 hrs, Volume= 1.425 af Primary = 5.77 cfs @ 12.15 hrs, Volume= 1.425 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Link P20: POST DEVELOPMENT RUNOFF Inflow Primary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)6 5 4 3 2 1 0 Inflow Area=21.600 ac 5.77 cfs 5.77 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 14HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Time span=0.00-100.00 hrs, dt=0.02 hrs, 5001 points x 3 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=1.81"Subcatchment P01: DIRECT RUNOFF TO Tc=20.0 min CN=74 Runoff=12.71 cfs 0.967 af Runoff Area=13.100 ac 18.51% Impervious Runoff Depth=1.67"Subcatchment P02: DA:P8 (TO POND B) Tc=40.0 min CN=72 Runoff=14.98 cfs 1.820 af Runoff Area=2.100 ac 25.00% Impervious Runoff Depth=2.28"Subcatchment P03: DA:P8 (TO POND B) Tc=20.0 min CN=80 Runoff=5.33 cfs 0.400 af Peak Elev=957.46' Storage=33,446 cf Inflow=14.98 cfs 1.820 afPond P10: POND 1 Primary=4.61 cfs 1.803 af Secondary=0.00 cfs 0.000 af Outflow=4.61 cfs 1.803 af Peak Elev=958.63' Storage=5,983 cf Inflow=5.33 cfs 0.400 afPond P11: Pond 2 Primary=2.27 cfs 0.399 af Secondary=0.00 cfs 0.000 af Outflow=2.27 cfs 0.399 af Inflow=14.19 cfs 3.168 afLink P20: POST DEVELOPMENT RUNOFF Primary=14.19 cfs 3.168 af Total Runoff Area = 21.600 ac Runoff Volume = 3.186 af Average Runoff Depth = 1.77" 86.34% Pervious = 18.650 ac 13.66% Impervious = 2.950 ac POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 15HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff = 12.71 cfs @ 12.13 hrs, Volume= 0.967 af, Depth= 1.81" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 10-YR Rainfall=4.29" Area (ac) CN Description 6.400 74 >75% Grass cover, Good, HSG C 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 10-YR Rainfall=4.29" Runoff Area=6.400 ac Runoff Volume=0.967 af Runoff Depth=1.81" Tc=20.0 min CN=74 12.71 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 16HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P02: DA:P8 (TO POND B) Runoff = 14.98 cfs @ 12.39 hrs, Volume= 1.820 af, Depth= 1.67" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 10-YR Rainfall=4.29" Area (ac) CN Description 4.000 61 >75% Grass cover, Good, HSG B 6.100 80 1/2 acre lots, 25% imp, HSG C 3.000 72 1/3 acre lots, 30% imp, HSG B 13.100 72 Weighted Average 10.675 81.49% Pervious Area 2.425 18.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 40.0 Direct Entry, Subcatchment P02: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 10-YR Rainfall=4.29" Runoff Area=13.100 ac Runoff Volume=1.820 af Runoff Depth=1.67" Tc=40.0 min CN=72 14.98 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 17HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P03: DA:P8 (TO POND B) Runoff = 5.33 cfs @ 12.13 hrs, Volume= 0.400 af, Depth= 2.28" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 10-YR Rainfall=4.29" Area (ac) CN Description 2.100 80 1/2 acre lots, 25% imp, HSG C 1.575 75.00% Pervious Area 0.525 25.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P03: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)5 4 3 2 1 0 Type II 24-hr 10-YR Rainfall=4.29" Runoff Area=2.100 ac Runoff Volume=0.400 af Runoff Depth=2.28" Tc=20.0 min CN=80 5.33 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 18HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P10: POND 1 Inflow Area = 13.100 ac, 18.51% Impervious, Inflow Depth = 1.67" for 10-YR event Inflow = 14.98 cfs @ 12.39 hrs, Volume= 1.820 af Outflow = 4.61 cfs @ 13.09 hrs, Volume= 1.803 af, Atten= 69%, Lag= 41.8 min Primary = 4.61 cfs @ 13.09 hrs, Volume= 1.803 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 957.46' @ 13.09 hrs Surf.Area= 25,834 sf Storage= 33,446 cf Plug-Flow detention time= 451.5 min calculated for 1.803 af (99% of inflow) Center-of-Mass det. time= 446.1 min ( 1,325.0 - 878.9 ) Volume Invert Avail.Storage Storage Description #1 956.00' 110,867 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 956.00 20,000 755.0 0 0 20,000 958.00 28,160 830.0 47,928 47,928 29,592 960.00 34,900 885.0 62,940 110,867 37,291 Device Routing Invert Outlet Devices #1 Primary 956.00'24.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 956.00' / 955.00' S= 0.0167 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.14 sf #2 Device 1 957.00'Weir Wall, Cv= 2.62 (C= 3.28) Head (feet) 0.00 4.00 Width (feet) 4.00 4.00 #3 Device 1 956.00'4.0" Vert. Simulate 6" Dtile in Sand Media C= 0.600 #4 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=4.61 cfs @ 13.09 hrs HW=957.46' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Passes 4.61 cfs of 12.36 cfs potential flow) 2=Weir Wall (Weir Controls 4.13 cfs @ 2.23 fps) 3=Simulate 6" Dtile in Sand Media (Orifice Controls 0.48 cfs @ 5.48 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=956.00' TW=0.00' (Dynamic Tailwater) 4=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 19HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P10: POND 1 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=13.100 ac Peak Elev=957.46' Storage=33,446 cf 14.98 cfs 4.61 cfs 4.61 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 20HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P11: Pond 2 Inflow Area = 2.100 ac, 25.00% Impervious, Inflow Depth = 2.28" for 10-YR event Inflow = 5.33 cfs @ 12.13 hrs, Volume= 0.400 af Outflow = 2.27 cfs @ 12.38 hrs, Volume= 0.399 af, Atten= 57%, Lag= 15.0 min Primary = 2.27 cfs @ 12.38 hrs, Volume= 0.399 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 958.63' @ 12.38 hrs Surf.Area= 10,066 sf Storage= 5,983 cf Plug-Flow detention time= 111.0 min calculated for 0.399 af (100% of inflow) Center-of-Mass det. time= 110.3 min ( 948.8 - 838.4 ) Volume Invert Avail.Storage Storage Description #1 958.00' 21,825 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 958.00 9,000 375.0 0 0 9,000 959.00 10,725 400.0 9,850 9,850 10,590 960.00 13,270 440.0 11,975 21,825 13,296 Device Routing Invert Outlet Devices #1 Primary 958.00'15.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 958.00' / 955.00' S= 0.0500 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=2.27 cfs @ 12.38 hrs HW=958.63' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Inlet Controls 2.27 cfs @ 3.68 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=958.00' TW=0.00' (Dynamic Tailwater) 2=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 21HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P11: Pond 2 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)5 4 3 2 1 0 Inflow Area=2.100 ac Peak Elev=958.63' Storage=5,983 cf 5.33 cfs 2.27 cfs 2.27 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 10-YR Rainfall=4.29"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 22HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Link P20: POST DEVELOPMENT RUNOFF Inflow Area = 21.600 ac, 13.66% Impervious, Inflow Depth > 1.76" for 10-YR event Inflow = 14.19 cfs @ 12.15 hrs, Volume= 3.168 af Primary = 14.19 cfs @ 12.15 hrs, Volume= 3.168 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Link P20: POST DEVELOPMENT RUNOFF Inflow Primary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=21.600 ac 14.19 cfs 14.19 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 23HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Time span=0.00-100.00 hrs, dt=0.02 hrs, 5001 points x 3 Runoff by SCS TR-20 method, UH=SCS Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=6.400 ac 0.00% Impervious Runoff Depth=4.41"Subcatchment P01: DIRECT RUNOFF TO Tc=20.0 min CN=74 Runoff=31.37 cfs 2.352 af Runoff Area=13.100 ac 18.51% Impervious Runoff Depth=4.19"Subcatchment P02: DA:P8 (TO POND B) Tc=40.0 min CN=72 Runoff=39.15 cfs 4.573 af Runoff Area=2.100 ac 25.00% Impervious Runoff Depth=5.08"Subcatchment P03: DA:P8 (TO POND B) Tc=20.0 min CN=80 Runoff=11.75 cfs 0.890 af Peak Elev=958.49' Storage=62,145 cf Inflow=39.15 cfs 4.573 afPond P10: POND 1 Primary=23.87 cfs 4.557 af Secondary=0.00 cfs 0.000 af Outflow=23.87 cfs 4.557 af Peak Elev=959.17' Storage=11,740 cf Inflow=11.75 cfs 0.890 afPond P11: Pond 2 Primary=6.01 cfs 0.889 af Secondary=0.00 cfs 0.000 af Outflow=6.01 cfs 0.889 af Inflow=37.16 cfs 7.798 afLink P20: POST DEVELOPMENT RUNOFF Primary=37.16 cfs 7.798 af Total Runoff Area = 21.600 ac Runoff Volume = 7.815 af Average Runoff Depth = 4.34" 86.34% Pervious = 18.650 ac 13.66% Impervious = 2.950 ac POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 24HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff = 31.37 cfs @ 12.12 hrs, Volume= 2.352 af, Depth= 4.41" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 100-YR Rainfall=7.42" Area (ac) CN Description 6.400 74 >75% Grass cover, Good, HSG C 6.400 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P01: DIRECT RUNOFF TO WETLAND 1 Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100-YR Rainfall=7.42" Runoff Area=6.400 ac Runoff Volume=2.352 af Runoff Depth=4.41" Tc=20.0 min CN=74 31.37 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 25HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P02: DA:P8 (TO POND B) Runoff = 39.15 cfs @ 12.37 hrs, Volume= 4.573 af, Depth= 4.19" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 100-YR Rainfall=7.42" Area (ac) CN Description 4.000 61 >75% Grass cover, Good, HSG B 6.100 80 1/2 acre lots, 25% imp, HSG C 3.000 72 1/3 acre lots, 30% imp, HSG B 13.100 72 Weighted Average 10.675 81.49% Pervious Area 2.425 18.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 40.0 Direct Entry, Subcatchment P02: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Type II 24-hr 100-YR Rainfall=7.42" Runoff Area=13.100 ac Runoff Volume=4.573 af Runoff Depth=4.19" Tc=40.0 min CN=72 39.15 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 26HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Subcatchment P03: DA:P8 (TO POND B) Runoff = 11.75 cfs @ 12.12 hrs, Volume= 0.890 af, Depth= 5.08" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Type II 24-hr 100-YR Rainfall=7.42" Area (ac) CN Description 2.100 80 1/2 acre lots, 25% imp, HSG C 1.575 75.00% Pervious Area 0.525 25.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.0 Direct Entry, Subcatchment P03: DA:P8 (TO POND B) Runoff Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type II 24-hr 100-YR Rainfall=7.42" Runoff Area=2.100 ac Runoff Volume=0.890 af Runoff Depth=5.08" Tc=20.0 min CN=80 11.75 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 27HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P10: POND 1 Inflow Area = 13.100 ac, 18.51% Impervious, Inflow Depth = 4.19" for 100-YR event Inflow = 39.15 cfs @ 12.37 hrs, Volume= 4.573 af Outflow = 23.87 cfs @ 12.69 hrs, Volume= 4.557 af, Atten= 39%, Lag= 19.5 min Primary = 23.87 cfs @ 12.69 hrs, Volume= 4.557 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 958.49' @ 12.69 hrs Surf.Area= 29,748 sf Storage= 62,145 cf Plug-Flow detention time= 209.0 min calculated for 4.556 af (100% of inflow) Center-of-Mass det. time= 207.6 min ( 1,059.8 - 852.3 ) Volume Invert Avail.Storage Storage Description #1 956.00' 110,867 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 956.00 20,000 755.0 0 0 20,000 958.00 28,160 830.0 47,928 47,928 29,592 960.00 34,900 885.0 62,940 110,867 37,291 Device Routing Invert Outlet Devices #1 Primary 956.00'24.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 956.00' / 955.00' S= 0.0167 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 3.14 sf #2 Device 1 957.00'Weir Wall, Cv= 2.62 (C= 3.28) Head (feet) 0.00 4.00 Width (feet) 4.00 4.00 #3 Device 1 956.00'4.0" Vert. Simulate 6" Dtile in Sand Media C= 0.600 #4 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=23.86 cfs @ 12.69 hrs HW=958.49' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Barrel Controls 23.86 cfs @ 7.82 fps) 2=Weir Wall (Passes < 23.84 cfs potential flow) 3=Simulate 6" Dtile in Sand Media (Passes < 0.64 cfs potential flow) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=956.00' TW=0.00' (Dynamic Tailwater) 4=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 28HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P10: POND 1 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)42 40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=13.100 ac Peak Elev=958.49' Storage=62,145 cf 39.15 cfs 23.87 cfs 23.87 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 29HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Pond P11: Pond 2 Inflow Area = 2.100 ac, 25.00% Impervious, Inflow Depth = 5.08" for 100-YR event Inflow = 11.75 cfs @ 12.12 hrs, Volume= 0.890 af Outflow = 6.01 cfs @ 12.33 hrs, Volume= 0.889 af, Atten= 49%, Lag= 12.3 min Primary = 6.01 cfs @ 12.33 hrs, Volume= 0.889 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs / 3 Peak Elev= 959.17' @ 12.33 hrs Surf.Area= 11,146 sf Storage= 11,740 cf Plug-Flow detention time= 75.2 min calculated for 0.888 af (100% of inflow) Center-of-Mass det. time= 75.3 min ( 890.9 - 815.6 ) Volume Invert Avail.Storage Storage Description #1 958.00' 21,825 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 958.00 9,000 375.0 0 0 9,000 959.00 10,725 400.0 9,850 9,850 10,590 960.00 13,270 440.0 11,975 21,825 13,296 Device Routing Invert Outlet Devices #1 Primary 958.00'15.0" Round Outlet Pipe L= 60.0' RCP, rounded edge headwall, Ke= 0.100 Inlet / Outlet Invert= 958.00' / 955.00' S= 0.0500 '/' Cc= 0.900 n= 0.013 Concrete pipe, straight & clean, Flow Area= 1.23 sf #2 Secondary 959.50'Land Overflow, Cv= 2.62 (C= 3.28) Head (feet) 0.00 0.50 Width (feet) 10.00 12.00 Primary OutFlow Max=6.01 cfs @ 12.33 hrs HW=959.17' TW=0.00' (Dynamic Tailwater) 1=Outlet Pipe (Inlet Controls 6.01 cfs @ 5.03 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=958.00' TW=0.00' (Dynamic Tailwater) 2=Land Overflow ( Controls 0.00 cfs) POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 30HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Pond P11: Pond 2 Inflow Outflow Primary Secondary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=2.100 ac Peak Elev=959.17' Storage=11,740 cf 11.75 cfs 6.01 cfs 6.01 cfs 0.00 cfs POST DEVELOPMENT Type II 24-hr 100-YR Rainfall=7.42"04.Routing - Bentz - 051514 Printed 5/22/2014Prepared by Sathre-Bergquist, Inc. Page 31HydroCAD® 10.00 s/n 03665 © 2012 HydroCAD Software Solutions LLC Summary for Link P20: POST DEVELOPMENT RUNOFF Inflow Area = 21.600 ac, 13.66% Impervious, Inflow Depth = 4.33" for 100-YR event Inflow = 37.16 cfs @ 12.16 hrs, Volume= 7.798 af Primary = 37.16 cfs @ 12.16 hrs, Volume= 7.798 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-100.00 hrs, dt= 0.02 hrs Link P20: POST DEVELOPMENT RUNOFF Inflow Primary Hydrograph Time (hours) 10095908580757065605550454035302520151050Flow (cfs)40 38 36 34 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=21.600 ac 37.16 cfs 37.16 cfs