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Drainage Calcs Existing Subcatchment 2 Subcatchment 1 CITY OF CHANHASSEN RECEIVED FEB 0 3 2006 CHANHASSEN PU.NNING DEPT Subcatchment 3 Drainage Diagram for EXISTING 1-16-06 Prepared by {enter your company name here} 2/3/2006 HydroCAOO 7.00 sin 000744 @ 1986-2003 Applied Microcomputer Systems EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sin 000744 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 1 year Rainfal/=2.30" Page 2 2/3/2006 Runoff Subcatchment 1S: Subcatchment 1 = 20.41 cfs @ 12.15 hrs, Volume= 1.701 af, Depth= 0.62" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 1 year Rainfall=2.30" Area (ac) 2.790 5.170 0.980 24.090 33.030 CN Description 61 Pasture/grassland/range, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 78 Row crops, straight row, Good, HSG B 77 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 20.3 2,440 0.1220 2.0 Lag/CN Method, Subcatchment 2S: Subcatchment 2 Runoff = 3.29 cfs @ 11.98 hrs, Volume= 0.154 af, Depth= 0.66" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 1 year Rainfall=2.30" Area (ac) 2.640 0.160 2.800 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 78 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 5.7 315 0.0555 0.9 Lag/CN Method, Subcatchment 3S: Subcatchment 3 Runoff = 18.78 cfs @ 12.08 hrs, Volume= 1.285 af, Depth= 0.62" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 1 year Rainfall=2.30" Area (ac) 23.360 0.260 1.330 24.950 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 77 Weighted Average EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 1 year Rainfal/=2.30" Page 3 2/3/2006 T c Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.6 1,180 0.0740 1.3 Lag/CNMethod, EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 2 year Rainfal/=2.70" Page 3 2/3/2006 Runoff Subcatchment 1 S: Subcatchment 1 = 29.94 cfs @ 12.15 hrs, Volume= 2.391 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 2 year Rainfall=2.70" Area (ac) 2.790 5.170 0.980 24.090 33.030 CN Description 61 Pasture/grassland/range, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 78 Row crops, straight row, Good, HSG B 77 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 20.3 2,440 0.1220 2.0 Lag/CN Method, Subcatchment 25: Subcatchment 2 Runoff = 4.64 cfs @ 11.98 hrs, Volume= 0.215 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 2 year Rainfall=2.70" Area (ac) 2.640 0.160 2.800 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 78 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 5.7 315 0.0555 0.9 Lag/CN Method, 5ubcatchment 3S: Subcatchment 3 Runoff = 27.36 cfs @ 12.08 hrs, Volume= 1.806 af, Depth= 0.87" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 2 year Rainfall=2.70" Area (ac) 23.360 0.260 1.330 24.950 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 77 Weighted Average EXISTI NG 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 2 year Rainfal/=2.70" Page 4 2/3/2006 Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 14.6 1,180 0.0740 1.3 Lag/CNMethod, EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAO@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type 1/24-hr 10 year Rainfal/=4.20" Page 4 2/3/2006 Runoff Subcatchment 1S: Subcatchment 1 = 71.31 cfs @ 12.13 hrs, Volume= 5.421 af, Depth= 1.97" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 10 year Rainfall=4.20" Area (ac) 2.790 5.170 0.980 24.090 33.030 eN Description 61 Pasture/grassland/range, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 78 Row crops, straight row, Good, HSG B 77 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 20.3 2,440 0.1220 2.0 Lag/CN Method, Runoff Subcatchment 2S: Subcatchment 2 = 10.37 cfs @ 11.97 hrs, Volume= 0.478 af, Depth= 2.05" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 10 year Rainfall=4.20" Area (ac) 2.640 0.160 2.800 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 78 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 5.7 315 0.0555 0.9 Lag/CN Method, Subcatchment 3S: Subcatchment 3 Runoff = 64.39 cfs @ 12.07 hrs, Volume= 4.095 af, Depth= 1.97" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 10 year Rainfall=4.20" Area (ac) 23.360 0.260 1.330 24.950 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 77 Weighted Average EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type 1/24-hr 10 year Rainfal/=4.20" Page 5 2/3/2006 Te Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 14.6 1,180 0.0740 1.3 Lag/eN Method, EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sin 000744 @ 1986-2003 Applied Microcomputer Systems Type 1/24-hr 100 year Rainfal/=6.00" Page 6 2/3/2006 Runoff Subcatchment 1S: Subcatchment 1 = 126.71 cfs@ 12.13hrs, Volume= 9.576 af, Depth= 3.48" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 100 year Rainfall=6.00" Area (ac) 2.790 5.170 0.980 24.090 33.030 CN Description 61 Pasture/grasslandlrange, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 78 Row crops, straight row, Good, HSG B 77 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 20.3 2,440 0.1220 2.0 Lag/CN Method, Runoff Subcatchment 2S: Subcatchment 2 = 17.82 cfs @ 11.97 hrs, Volume= 0.835 af, Depth= 3.58" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 100 year Rainfall=6.00" Area (ac) 2.640 0.160 2.800 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 78 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 5.7 315 0.0555 0.9 Lag/CN Method, Subcatchment 3S: Subcatchment 3 Runoff = 113.72 cfs @ 12.07 hrs, Volume= 7.234 af, Depth= 3.48" Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-100.00 hrs, dt= 0.01 hrs Type II 24-hr 100 year Rainfall=6.00" Area (ac) 23.360 0.260 1.330 24.950 CN Description 78 Row crops, straight row, Good, HSG B 85 Wetland 55 Woods, Good, HSG B 77 Weighted Average EXISTING 1-16-06 Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 000744 @ 1986-2003 Applied Microcomputer Systems Type 1/24-hr 100 year Rainfall=6.00" Page 7 2/3/2006 Tc Length Slope Velocity Capacity Description (min) (feet) (ftIft) (ftIsec) (cfs) 14.6 1,180 0.0740 1.3 Lag/eN Method,