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Benedicting Innsbruck Hydro MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" Prepared by Sunde Engineering Printed 2/13/2020 HydroCAD® 10.00-20 s/n 02350 ©2017 HydroCAD Software Solutions LLC Page 15 Summary for Subcatchment 25S: Runoff = 0.09 cfs @ 12.05 hrs, Volume= 228 cf, Depth= 0.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" Area (sf) CN Description 100 98 Paved parking, HSG C 3,092 74 >75% Grass cover, Good, HSG C 3,192 75 Weighted Average 3,092 96.87% Pervious Area 100 3.13% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Assumed Summary for Subcatchment EX 1: Existing Runoff = 7.68 cfs @ 12.05 hrs, Volume= 17,525 cf, Depth= 1.53" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" Area (sf) CN Description 69,017 98 Paved parking, HSG C 68,768 74 >75% Grass cover, Good, HSG C 137,785 86 Weighted Average 68,768 49.91% Pervious Area 69,017 50.09% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Assumed Summary for Subcatchment EX 2: Existing Runoff = 2.94 cfs @ 12.04 hrs, Volume= 6,703 cf, Depth= 1.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs MN-New Brighton 24-hr S1 2-yr Rainfall=2.84" Area (sf) CN Description 26,999 98 Paved parking, HSG C 20,977 74 >75% Grass cover, Good, HSG C 47,976 88 Weighted Average 20,977 43.72% Pervious Area 26,999 56.28% Impervious Area