Hydrology Studio IDF File False 3 FHA Roanoke Virginia, USA I = B/(Tc + D)^E) Equation Coefficients = B, D, E, n/a 1,44.15157,12.00001,0.8698294,0 1,60.14543,13.30001,0.8928506,0 1,0,0,0,0 1,59.73697,12.70001,0.8359421,0 1,57.44695,12.00001,0.7934549,0 1,55.4475,11.30001,0.7479116,0 1,50.9625,10.4,0.7040105,0 1,44.03843,8.899998,0.6484784,0 Intermediate Intensity Values = 5-min, 15-min, 30-min, 60-min 3.76,2.5,1.71,1.07 4.49,3.01,2.08,1.3 0,0,0,0 5.41,3.65,2.59,1.66 6.07,4.09,2.96,1.93 6.88,4.63,3.43,2.28 7.44,5,3.77,2.55 8,5.36,4.1,2.83 25 100 50