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Mazza SFR 4" PVC 1 <br /> Peak Flow I <br /> n 0.009 <br /> D 0.334 ft <br /> r 0.167 ft <br /> A 0.09 sf <br /> Circ. 1.05 ft 1 <br /> Hyd Rad 0.0835 ft <br /> S 0.005 ft/ft <br /> Q 0.20 cfs Peak Capacity of Pipe <br /> Formula= (1.49/n)*pi*r^2*(r/2)^(2/3)*S^(1/2) <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> 1 <br />