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HomeMy WebLinkAboutApplication Files_82693_pg0643 72189 EX Type 11124-hr 90-Year Storm Rainfall=4.70" Prepared by {enter your company name here} Printed 7/26/2011 HydroCAD®9.10 s/n 01237 ©2009 HydroCAD Software Solutions LLC Page 17 Area (sf) CN Description 934 56 Brush, Fair, HSG B 4,767 36 Woods, Fair, HSG A ' 3,211 35 . Brush, Fair, HSG A 8;912 38 Weighted Average 8,912 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ftlsec) (cfs) 7.5 50 0.0700 0.11 Sheet Flow, A-B Woods: Light underbrush n= 0.400 P2= 3.20" Summary for Subcatchment EMA: Woods Runoff = 0.05 cfs @ 13.80 hrs, Volume= 0.032 af, Depth= 0.17" Runoff by SCS TR-20 method, UH=SCS,Time Span=0.00-72.00 hrs, dt=0.05 hrs Type Ill 24-hr 10-Year Storm Rainfall=4.70" ' Area(sf) CN Description 33,150 36 Woods, Fair, HSG A 50,547 35 Brush, Fair, HSG A 12,264 69 50-75% Grass cover, Fair, HSG B 95,961 40 Weighted Average 95,961 100.00% Pervious Area ' Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.5 50 0.0057 0.06 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 3.20" 3.9 125 0.0057 0.53 Shallow Concentrated Flow, B-C Short Grass Pasture Kv=7.0 fps 0.7 70 0.0570 1.67 Shallow Concentrated Flow, C-D Short Grass Pasture Kv=7.0 fps 0.1 12 0.2500 3.50 Shallow Concentrated Flow, D-E Short Grass Pasture Kv= 7.0,fps 1 1.4 46 0.0065 0.56, Shallow Concentrated Flow, E-F Short Grass Pasture Kv= 7.0 fps 19.6 303 Total 1 Summary for Subcatchment EMB: Existing Buildings Along Route 30 Runoff = 1.89 cfs @ 12.23 hrs, Volume= 0.192 af, Depth= 1.60" Runoff by SCS TR-20 method;UH=SCS, Time Span=0.00-72.00 hrs, dt=0.05 hrs . Type III 24-hr 10-Year Storm Rainfall=4.70" 1 1