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prepared by Adam Parker PE (MN,WI,TX,BC,AB) <br />387 -Orono Orchard Road -Drainage GRAYS 24 -hr S1 100 -yr Rainfall= 7.40 " <br />Prepared by {enter your company name here} Printed 6/20/2018 <br />HvdroCADO 10.00-11 s/n 01636 © 2014 HvdroCAD Software Solutions LLC Paae 13 <br />Summary for Subcatchment EX: Existing - Lot 2 area <br />Runoff = 9.17 cfs @ 12.39 hrs, Volume= 1.025 af, Depth> 3.45" <br />Runoff by SCS TR -20 method, UH=SCS, Weighted -Q, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs <br />GRAYS 24 -hr S1 100 -yr Rainfall=7.40" <br />Area (sf) CN DescriDtion <br />12,609 <br />98 Existing House and Driveway <br />5,109 <br />98 Existing Street on Lot <br />137,755 <br />61 >75% Grass cover, Good, HSG B <br />155,473 <br />65 Weighted Average <br />137,755 <br />88.60% Pervious Area <br />17,718 <br />11.40% Impervious Area <br />Tc <br />Length <br />Slope <br />Velocity Capacity Description <br />(min) <br />(feet) <br />(ft/ft) <br />(ft/sec) (cfs) <br />30.1 <br />850 <br />0.0200 <br />0.47 Lag/CN Method, <br />Subcatchment EX: Existing - Lot 2 area <br />Hydrograph <br />10-L9.17 cfs <br />9 ' 6RA)�S 24 -hr S11100 -yr <br />8 �I kai�nf 11�7L4(rtl" fi <br />7 Runoff Area=155;473 V I - <br />_ 6 'f Yolum�=1.0?5fiafj <br />off Depth>l4 <br />5 i <br />LL0 1 1en-g1th=8501 <br />4 1 �lo�e�=�.010b r <br />3 1 fc: 3Af niin 1 1 1 1 1 1 <br />2 CN�=6I5 1 1 1 1 1 1 <br />-1 T <br />0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 <br />Time (hours) <br />❑ Runoff <br />