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Drainage Diagram for Existing Conditions 7-1-05
~"bcaJ IReachl g ~ CITY OF CHANHASSfiN RECEIVED JUl 0 1 2005 CHANHASSEN PLANNING DEPT Drainage Diagram for Existing Conditions Prepared by {enter your company name here} 7/1/2005 HydroCAD@7.00 sin 002540 @ 1986-2003 Applied Microcomputer Systems Existing Conditions Prepared by {enter your company name here} HydroCAD@ 7.00 sIn 002540 @ 1986-2003 Applied Microcomputer Systems Type" 24-hr 10- Year Storm Rainfal/=4.20" Page 2 7/1/2005 Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+ Trans method - Pond routing by Stor-Ind method Subcatchment Existing Lot: Runoff Area=61 ,370 sf Runoff Depth=1.14" Tc=7.0 min CN=67 Runoff=2.97 cfs 0.134 af Total Runoff Area = 1.409 ac Runoff Volume = 0.134 af Average Runoff Depth = 1.14" Existing Conditions Prepared by {enter your company name here} HydroCAD@7.00 sIn 002540 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 10- Year Storm Rainfal/=4.20" Page 3 7/1/2005 Subcatchment Existing Lot: Runoff = 2.97 cfs @ 11.99 hrs, Volume= 0.134 af, Depth= 1.14" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 10-Year Storm Rainfall=4.20" Area (sf) 52,120 9,250 61,370 CN Description 61 >75% Grass cover, Good, HSG B 98 Paved parking & roofs 67 Weighted Average T c Length (min) (feet) 7.0 Slope Velocity Capacity Description (ftIft) (ftIsec) (cfs) Direct Entry, Type /I 24-hr 10- Year Storm Rainfal/=4.20" Page 4 7/1/2005 Existing Conditions Prepared by {enter your company name here} HydroCAO@ 7.00 sin 002540 @ 1986-2003 Applied Microcomputer Systems Time (hours) 5.00 5.25 5.50 5.75 6.00 6.25 6.50 6.75 7.00 7.25 7.50 7.75 8.00 8.25 8.50 8.75 9.00 9.25 9.50 9.75 10.00 10.25 10.50 10.75 11.00 11.25 11.50 11.75 12.00 12.25 12.50 12.75 13.00 13.25 13.50 13.75 14.00 14.25 14.50 14.75 15.00 15.25 15.50 15.75 16.00 16.25 16.50 16.75 17.00 17.25 17.50 17.75 precip. (inches) 0.26 0.28 0.30 0.32 0.34 0.36 0.37 0.40 0.42 0.44 0.46 0.48 0.50 0.53 0.56 0.59 0.62 0.65 0.68 0.72 0.76 0.81 0.86 0.92 0.99 1.08 1.19 1.63 2.78 2.97 3.09 3.17 3.24 3.30 3.36 3.40 3.44 3.48 3.52 3.55 3.58 3.62 3.64 3.67 3.70 3.72 3.74 3.77 3.79 3.81 3.83 3.85 Hydrograph for Subcatchment Existing Lot: Excess (inches) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.07 0.48 0.57 0.63 0.67 0.71 0.74 0.77 0.80 0.82 0.84 0.86 0.88 0.90 0.92 0.93 0.95 0.96 0.98 0.99 1.00 1.02 1.03 1.04 1.05 Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.40 2.96 0.51 0.33 0.25 0.21 0.18 0.16 0.14 0.13 0.12 0.11 0.11 0.10 0.10 0.09 0.09 0.08 0.08 0.08 0.08 0.07 0.07 0.07 0.07 Time (hours) 18.00 18.25 18.50 18.75 19.00 19.25 19.50 19.75 20.00 Precip. (inches) 3.87 3.89 3.90 3.92 3.94 3.95 3.97 3.98 4.00 Excess (inches) 1.06 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.14 Runoff (cfs) 0.07 0.06 0.06 0.06 0.06 0.06 0.05 0.05 0.05 Existing Conditions Prepared by {enter your company name here} HydroCAD@ 7.00 sin 002540 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 100- Year Storm Rainfal/=6.00" Page 5 7/1/2005 Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS Reach routing by Stor-Ind+ Trans method - Pond routing by Stor-Ind method Subcatchment Existing Lot: Runoff Area=61,370 sf Runoff Depth=2.31" Tc=7.0 min CN=67 Runoff=6.04 cfs 0.271 af Total Runoff Area = 1.409 ac Runoff Volume = 0.271 af Average Runoff Depth = 2.31" Existing Conditions Prepared by {enter your company name here} HydroCAO@ 7.00 sin 002540 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 100- Year Storm Rainfal/=6.00" Page 6 7/1/2005 Subcatchment Existing Lot: Runoff = 6.04 cfs @ 11.99 hrs, Volume= 0.271 af, Depth= 2.31" Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Type II 24-hr 100-Year Storm Rainfall=6.00" Area (sf) 52,120 9,250 61,370 CN Description 61 >75% Grass cover, Good, HSG B 98 Paved parking & roofs 67 Weighted Average Slope Velocity Capacity Description (ftlft) (ftlsec) (cfs) T c Length (min) (feet) 7.0 Direct Entry, Type /I 24-hr 100- Year Storm Rainfal/=6.00" Page 7 7/1/2005 Existing Conditions Prepared by {enter your company name here} HydroCAO@ 7.00 sIn 002540 @ 1986-2003 Applied Microcomputer Systems Time (hours) 5.00 5.25 5.50 5.75 6.00 6.25 6.50 6.75 7.00 7.25 7.50 7.75 8.00 8.25 8.50 8.75 9.00 9.25 9.50 9.75 10.00 10.25 10.50 10.75 11.00 11.25 11.50 11.75 12.00 12.25 12.50 12.75 13.00 13.25 13.50 13.75 14.00 14.25 14.50 14.75 15.00 15.25 15.50 15.75 16.00 16.25 16.50 16.75 17.00 17.25 17.50 17.75 Precip. (inches) 0.38 0.40 0.43 0.45 0.48 0.51 0.54 0.56 0.59 0.62 0.66 0.69 0.72 0.75 0.79 0.84 0.88 0.93 0.98 1.03 1.09 1.15 1.22 1.31 1.41 1.54 1.70 2.32 3.98 4.24 4.41 4.53 4.63 4.72 4.79 4.86 4.92 4.97 5.03 5.07 5.12 5.16 5.21 5.24 5.28 5.31 5.35 5.38 5.41 5.44 5.47 5.50 Hydrograph for Subcatchment Existing Lot: Excess (inches) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.02 0.03 0.06 0.09 0.29 1.13 1.29 1.40 1.48 1.55 1.61 1.66 1.71 1.75 1.79 1.82 1.86 1.89 1.92 1.95 1.98 2.00 2.02 2.05 2.07 2.09 2.12 2.14 2.16 Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.03 0.05 0.08 0.13 0.20 1.21 5.98 0.96 0.61 0.45 0.38 0.33 0.29 0.26 0.23 0.21 0.20 0.19 0.18 0.17 0.16 0.15 0.14 0.14 0.13 0.13 0.13 0.12 0.12 0.12 Time (hours) 18.00 18.25 18.50 18.75 19.00 19.25 19.50 19.75 20.00 Precip. (inches) 5.53 5.55 5.58 5.60 5.63 5.65 5.67 5.69 5.71 Excess (inches) 2.18 2.20 2.22 2.23 2.25 2.27 2.28 2.30 2.31 Runoff (cfs) 0.11 0.11 0.11 0.10 0.10 0.09 0.09 0.09 0.08 Existing Conditions Prepared by {enter your company name here} HydroCAO@ 7.00 sin 002540 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 100- Year Storm Rainfal/=6.00" Page 1 7/1/2005 Current Messages [13] Note: Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points [16] Note: Runoff by SCS TR-20 method, UH=SCS [19] Note: Type 1\ 24-hr 100-Year Storm Rainfall=6.00" [22] Note: Reach routing by Stor-Ind+ Trans method [25] Note: Pond routing by Stor-Ind method [28] Note: Updating Subcat Existing Lot: Existing Conditions Prepared by {enter your company name here} HydroCAD@7.00 sIn 002540 @ 1986-2003 Applied Microcomputer Systems Type /I 24-hr 100- Year Storm Rainfall=6.00" Page 1 7/1/2005 Current Messages [13] Note: Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points [16] Note: Runoff by SCS TR-20 method, UH=SCS [19] Note: Type II 24-hr 100-Year Storm Rainfall=6.00" [22] Note: Reach routing by Stor-Ind+ Trans method [25] Note: Pond routing by Stor-Ind method [28] Note: Updating Subcat Existing Lot: