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Home My WebLink AboutApplication Files_82693_pg0666 72189 EX 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 ©2009 HydroCAD Software Solutions LLC Page 38 Tc Length Slope Velocity Capacity Description (min) (feet) (Rift) (ft/sec) (cfs) 9.3 50 0.0400 0.09 Sheet Flow, A-B Woods: Light underbrush n= 0.400 P2= 3.20" 20.7 340 0.0030 0.27 Shallow Concentrated Flow, B-C Woodland Kv= 5.0 fps 7.4 850 0.0090 1.93 Shallow Concentrated Flow,C-D Paved Kv= 20.3 fps 3.2 240 0.0060 1.25 Shallow Concentrated Flow, D-E Unpaved Kv= 16.1 fps . 40.6 1,480 Total Summary for Subcatchment EX2: Chapel Road Access [49[ Hint: Tc<2dt may require smaller dt Runoff = 2.32 cfs @ 12.09 hrs, Volume= 0.168 af, Depth= 3.03" 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 17,733 69. 50-75% Grass cover, Fair, HSG B 6,281 60 Woods, Fair, HSG B 5,046 56 Brush, Fair, HSG B 29,060 65 Weighted Average 29,060 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ftift) (ft/sec) (cfs) 4.3 50 0.0400 0.20 Sheet Flow, A-B Grass: Short n=0.150 P2=3.20" 0.6 115 0.0430 3.11 Shallow Concentrated Flow, B-C Grassed Waterway Kv= 15.0 fps 0.7 75 0.0160 1.90 Shallow Concentrated Flow, C-D Grassed Waterway Kv= 15.0 fps 5.6 240 Total Summary for Subcatchment EX3: Wetland Area Runoff = 0.06 cfs @ 12.30 hrs, Volume= 0.011 af, Depth= 0.66" 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"'