SUPPLEMENTAL MATERIALS (6-19-17)

14-020_TentPUD_StmDes Type IA 24-hr 10 yr Rainfall=4.46" Prepared by Microsoft Printed 2/18/2017 HydroCADO 10.00-16 s/n 09344 © 2015 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment E1: Existing SW Basin Runoff = 0.19 cfs @ 8.01 hrs, Volume= 0.087 af, Depth= 3.05" Runoff by SBUH method, Split Pervious/Imperv., Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type IA 24-hr 10 yr Rainfall=4.46" Area (sf) CN Descriotion 4,629 98 Extg Pavement 994 98 Concrete 5,790 79 Woods, Fair, HSG D 3,555 79 Woods, Fair, HSG D 14,968 86 Weighted Average 9,345 62.43% Pervious Area 5,623 37.57% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 23.9 150 0.0050 0.10 Sheet Flow, Sheet Flow Grass: Short n=0.150 P2=3.12" 2.4 150 0.0050 1.06 Shallow Concentrated Flow, Grassed Waterway Kv= 15.0 fps 1.6 230 0.0050 2.45 0.85 Pipe Channel, 8.0" Round Area= 0.3 sf Perim= 2.1' r= 0.17' n= 0.013 Concrete pipe, bends & connections 27.9 530 Total Summary for Subcatchment E2: Existing 38' Section Runoff = 0.16 cfs @ 8.01 hrs, Volume= 0.065 af, Depth= 2.34" Runoff by SBUH method, Split Pervious/Imperv., Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type IA 24-hr 10 yr Rainfall=4.46" Area (sf) CN Description 14,600 79 Woods, Fair, HSG D 14,600 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 17.7 300 0.3000 0.28 Sheet Flow, Sheet Flow Woods: Light underbrush n= 0.400 P2= 3.12" Summary for Subcatchment E3: Existing NW Private Basin Runoff = 0.10 cfs @ 7.94 hrs, Volume= 0.035 af, Depth= 2.74" Runoff by SBUH method, Split Pervious/Imperv., Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Type IA 24-hr 10 yr Rainfall=4.46"