Hydrology Studio IDF File False 3 FHA Portland Maine, USA I = B/(Tc + D)^E) Equation Coefficients = B, D, E, n/a 1,21.80302,4.399998,0.7926433,0 1,25.01357,4.199998,0.7783803,0 1,0,0,0,0 1,30.54829,3.999998,0.7646985,0 1,36.98722,4.199998,0.7684912,0 1,44.53148,4.199998,0.7656003,0 1,47.96011,3.899998,0.75366,0 1,53.99794,3.899998,0.7539788,0 Intermediate Intensity Values = 5-min, 15-min, 30-min, 60-min 3.7,2.06,1.32,0.803 4.46,2.48,1.6,0.98 0,0,0,0 5.71,3.18,2.06,1.27 6.74,3.75,2.45,1.51 8.17,4.54,2.98,1.84 9.25,5.14,3.37,2.09 10.4,5.76,3.79,2.35 25 100 50