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Home My WebLink AboutApplication Files_82693_pg0764 72189 PR Type 11124-hr 100-Year Storm Rainfall=6.90" ' Prepared by{enter your company name here} Printed 7/26/2011 HydroCAD®9.10 s/n 01237 0 2009 HydroCAD Software Solutions LLC Page 86 Area (sf) CN Description 4,372 82 Dirt roads, HSG B * 33,824 98 - Impervious ' 51,771 61 >75% Grass cover, Good, HSG B 38,766 56 Brush, Fair, HSG B 5,241 69 50-75% Grass cover, Fair, HSG B * 7,697 98 Basin Water Surface ' 141,671 71 Weighted Average 100,150 70.69% Pervious Area ' 41,521 29.31% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec). (cfs) 3.2 50 0.0800 0.26 Sheet Flow,A-B Grass: Short n= 0.150, P2= 3.20" 2.4 170 0.0294 1.20 Shallow Concentrated Flow, B-C Short Grass Pasture Kv= 7.0 fps 0.1 30 0.3330 8.66 Shallow Concentrated Flow, C-D Grassed Waterway Kv= 15.0 fps ' 0.3 Direct Entry, Min.T6=6.0 6.0 250 Total Summary for Subcatchment.PR'I H: Studio 3 Runoff - 8.72 cfs@ 12.09 hrs, Volume= 0.690 af, De th= 6.07" ' Runoff by SCS TR-20 method,,UH=SCS, Time Span=0.00-72.00 hrs, dt=0.05 hrs Type III 24-hr 100-Year Storm .Rainfall=6.90" ' Area (sf) CN Description 4,798 39 >75% Grass cover, Good, HSG A * 1,803 98 Water Surface * 52,767 98 Paved parking 59,368 93 Weighted Average 4,798 8.08% Pervious Area 54,570 91.92% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Min..Tc=6.0 Summary for Subcatchment PR11: Railroad Tracks ' Runoff = 6.81 cfs @ 12.22 hrs, Volume= 0.673 af, Depth= 2.34" ' Runoff by SCS TR-20 method, UH=SCS, Time Span=0.00-72.00 hrs, dt=0.05 hrs Type III 24-hr 100-Year Storm Rainfall=6.90"