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3850 Watertown Road
<br /> 3850 Watertown Road Type 1124-hr 100-YR Rainfa11=7.27"
<br /> Prepared by Sunde Engineering, PLLC. �rirrted 1/6/2075
<br /> HydroCADO 10.00 s/n 02350 02013 HvdroCAD Software Solutions LLC Page 8
<br /> Summary for Subcatchment 5S:
<br /> Runoff = 92.31 cfs @ 12.13 hrs, Volume= 6.959 af, Depth= 4,06"
<br /> Runoff by SC5 TR-2a method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt=0.05 hrs
<br /> Type I1 24-hr 'E00-YR Rainfaf1=7.2T'
<br /> Area s�f CN Description
<br /> ' 76,065 98 Impervious
<br /> 19,840 85 Gravel roads, HSG B
<br /> 580,635 69 Pasture/grassland/range, Fair, HSG 8
<br /> 87,808 64 Woods, Fair, HSG B
<br /> 13'I,542 79 50-75% Grass cover, Fair, HSG C
<br /> 895,990 72 Wefghted Average
<br /> 819,925 91.51°� Pervious Area
<br /> 76,d65 8.49% Impervious Area
<br /> Tc Length Slope Velocity Capacity Description
<br /> (min) �feet) (ft/ft) (ft/sec) (cfs}
<br /> 20.0 Direct Entry� Assumed
<br /> Summary for Subcatchment 10S:
<br /> Runoff = 92.31 cfs � 12.13 hrs, Volume= 6.959 af, Depth= 4.06"
<br /> Runoff by SCS TR-2fl method, UH=SCS, Weighted-CN, Tlme Span=O.aa72.00 hrs, dt=0.05 hrs
<br /> Type II 24-hr 100-YR Rairrf2�11=7.2T'
<br /> Area !sfl CN Description
<br /> * 76,065 98 lmpervious
<br /> 19,840 85 Gravel roads, HSG B
<br /> 580,635 69 Pasturelgrassland/range, Fair, HSG B
<br /> 87,908 60 Woods, Fair, HSG B
<br /> 131,542 79 50-75% Grass cover, Fair, HSG C
<br /> 895,990 72 Weighted Average
<br /> 819,925 91.51% Pervious Area
<br /> 76,065 8.49% Impervious Area
<br /> Tc Length Slope Velocity Capacity Description
<br /> (min) (feet) {ft/ft) (ft/sec} (cfs)
<br /> 20.0 Direct Entry, Assumed
<br /> Summary for Subcatchment 11 S:
<br /> Runoff = 92.31 cfs @ 12.13 hrs, Volume= 6.959 af, Depth= 4.06"
<br /> Runoff by SCS TR-20 methocf, UH=SCS, Weighted-CN,Time Span= 0.00-72.00 hrs,dt=0.05 hrs
<br /> Type I1 24-!ir 100-YR Rainfa11=7.27"
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