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Appended on: 14:27:06 Friday, November 05, 2010 <br /> CB4 Event Summary <br /> Event ' <br /> ;Peak Q (cfs) Peak T (hrs)IHyd Vol (acft) Area (ac)`Method Raintype <br /> 2 year '` 2.2526 8.00 0.7246 7.3600 SCS TYPE1A <br /> 10 ear 3.4678 8.00 1.1545 7.3600 SCS `TYPE1A 1 <br /> y <br /> 25 year 4.3353 8.00 1.4585 7 3600 SCS TYPE1A <br /> 100 year; 5.2024 8.00 1.7631 7.3600 SCS TYPE1A1 <br /> Record Id: CB4 <br /> Design Method SCS =Rainfall type ; TYPE1A <br /> Hyd Intv 10.00 min ;Peaking Factor 484.00 <br /> : :Abstraction Coeff 0.20 <br /> Pervious Area (AMC 2) 0.61 ac ;DCIA 6.75 ac <br /> Pervious CN , 86.00 DC CN 98.00 <br /> ?Pervious TC 4.64 min DC TC 1 3.42 mm <br /> • :. Pervious CN Calc 11 <br /> Description SubArea Sub cn <br /> Open spaces, lawns, parks (50 75% grass) 0.61 ac ; 86 00 3 1 <br /> Pervious Composited CN(AMC 2) - 86.00 <br /> Pervious TC Calc ti <br /> Type Description 1 Length Slope } Coeff ; Misc 3 TT <br /> __ p g <br /> Sheet Landscape I29 00 ft 5 00% 0 2000 1 50 in 14 64 min <br /> 1,1 Pervious TC4 64 mm <br /> Directly Connected CN Calc <br /> __ <br /> 3 <br /> Description ; SubArea i Sub cn il <br /> , Impervious surfaces (pavements,roofs, etc) 6 75 ac 98 00 <br /> DC Composited CN(AMC 2) 98.00{ <br /> Directly Connected TC Calc <br /> Type Description Length I Slope Coeff Misc TT , <br /> , <br /> !Channel (cont) Pipe Flow 282.00 ft 3 50% 0 1100 3 42 min <br /> Directly Connected TC 3.42min <br />