Hydrology Studio IDF File False 3 FHA DesMoines Iowa, USA I = B/(Tc + D)^E) Equation Coefficients = B, D, E, n/a 1,10.19149,0,0.4862182,0 1,11.92747,0,0.4877883,0 1,0,0,0,0 1,14.77839,0,0.4859727,0 1,17.29381,0,0.4852361,0 1,20.93006,0,0.4836361,0 1,24.02438,0,0.4853706,0 1,26.97355,0,0.4828768,0 Intermediate Intensity Values = 5-min, 15-min, 30-min, 60-min 4.66,2.77,1.95,1.27 5.44,3.23,2.27,1.47 0,0,0,0 6.76,4.02,2.83,1.83 7.92,4.72,3.32,2.15 9.61,5.72,4.04,2.64 11,6.53,4.61,3.04 12.4,7.38,5.22,3.48 25 100 50