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PROJECT: Riverside Business Park PIPE SIZING <br /> BY: KGH (Runoff by Rational Method) <br /> DATE: 9/1/2016 Method: Everett SWMM 2010 <br /> CHECKED BY: HK M= 7.83 For Everett 25 Year Storm <br /> DATE: 9/1/2016 n= 0.582 <br /> LAST UPDATE: 9/1/2016 (Pipe Capacity by Manning's Eqn.) <br /> Shading=Assumed slope <br /> Lot 2 to North Split flow between Lot 2 Outfall and Multiple Outfall <br /> I Inc. Time of Rain Pipe % Veloc Flow <br /> Area Runoff Sum Cone Intens Runoff n Diam Slope Length Capac Capac Full Time Capacity Remarks <br /> From To (Acre) Coef. A*C A*C (min) (in/hr) (cfs) Value , (inch) (%) (feet) (cfs) Used (ft/sec) (min) Check <br /> Lot 2 Outfall- Half of Lot 2 Area <br /> Lot 2 CB Exist. 15" Steel 2.03 0.84 1.70 1.70 10.00 2.05 3.48 0.012 15 0.50 10 4.95 7(1 4.03 0.04 PASS (Assume 90% <br /> Impervious) <br /> 1 1 <br /> Exist. 18" Steel <br /> Half of Lot 2 Area <br /> Lot 2 Outfall(Multiple 1 3.31 0.84 2.76 2.76 10.00 2.05 5.66 0.012 18 0.50 10 8.05 70 4.55 0.04 PASS (Assume 90% <br /> Outfalls) Impervious) <br /> H:\21Cp\16\001 POE Riverside On-Cal1\SEQUESTERED\Amendment 1\Hydraulic Calcs\Lot 2 to North.xlsx <br />