Hydrology Studio IDF File False 3 FHA Grand Rapids Michigan, USA I = B/(Tc + D)^E) Equation Coefficients = B, D, E, n/a 1,7.384893,0,0.4533732,0 1,8.729531,0,0.4545856,0 1,0,0,0,0 1,11.00932,0,0.4565668,0 1,13.06612,0,0.458198,0 1,16.05835,0,0.4599228,0 1,18.48828,0,0.4605643,0 1,20.99152,0,0.4607406,0 Intermediate Intensity Values = 5-min, 15-min, 30-min, 60-min 3.56,2.12,1.58,1.05 4.2,2.5,1.86,1.22 0,0,0,0 5.28,3.15,2.33,1.53 6.25,3.72,2.75,1.8 7.66,4.56,3.36,2.21 8.81,5.24,3.86,2.54 10,5.96,4.38,2.89 25 100 50