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Dutch Bros. Coffee Stormwater Site Plan Everett, Washington <br /> Project Site Input Data <br /> Project Precips <br /> Event Precip (in) <br /> 2 yr 24 hr 1.55 <br /> 10 year 2.25 <br /> F25 year 2.60 <br /> 100 year 3.25 <br /> Existing Conditions <br /> Design Method SCS Rainfall type TYPE1A.RAC <br /> Hyd Intv 10.00 min Peaking Factor 484.00 <br /> Storm Duration ( 24.00 hrs Abstraction Coeff 0.20 <br /> Pervious Area 0.28 ac DCIA 0.00 ac <br /> Pervious CN 86.00 DC CN 0.00 <br /> Pervious TC 17.0847 min DC TC 0.00 min <br /> Pervious CN Calc <br /> Description SubArea Sub cn <br /> Open spaces, lawns,parks (>75% grass) 0.28 ac 86.00 <br /> Pervious Composited CN (AMC 2) 86.00 <br /> Pervious TC Calc <br /> Type Description r Length rSlope Coeff Misc TT <br /> Sheet I Short prairie grass and lawns. 156.00 ft I 3.0% I 0.15 ( 1.55 in 17.0847 min <br /> Pervious TC 17.0847 min <br /> Existing Conditions Peak Flows <br /> Peak Q I Peak T Peak Vol (ac- Area <br /> BasinlD Event Method/Loss Raintype <br /> (cfs) (hrs) cf) (ac) <br /> Everett 2 yr 24 0.0263 8.10 0.0123 0.28 SCS TYPE1A.RAC <br /> Existing hr <br /> Everett <br /> 10 year 0.0623 8.08 0.0244 0.28 SCS TYPE1A.RAC <br /> Existing <br /> Everett 100 year 0.1223 8.08 0.0439 0.28 SCS TYPE1A.RAC <br /> Existing <br /> �n�i nnin n.. 1n <br />