Hydrology Studio IDF File False 3 FHA Chicago Illinois, USA I = B/(Tc + D)^E) Equation Coefficients = B, D, E, n/a 1,47.80433,9.6,0.8724505,0 1,56.95319,9.900002,0.8659124,0 1,0,0,0,0 1,59.25002,9.4,0.8240738,0 1,55.34496,8.299995,0.77682,0 1,54.45495,7.499995,0.7353083,0 1,52.82594,6.699996,0.7027685,0 1,49.34968,5.799997,0.6625875,0 Intermediate Intensity Values = 5-min, 15-min, 30-min, 60-min 4.61,2.92,1.93,1.18 5.5,3.5,2.34,1.44 0,0,0,0 6.58,4.18,2.87,1.8 7.43,4.7,3.26,2.08 8.51,5.36,3.79,2.46 9.38,5.87,4.2,2.76 10.2,6.38,4.61,3.08 25 100 50