The Horton parameters for the watershed are f0=5.5cm/hour, ff=0.15cm/hour and k= 1.0/hr. The watershed is subjected to a rainfall that has a duration of 6 hours. The rainfall intensity is 2 cm/hour during the first two hours, 3cm/hour in middle two hours and 3.5 cm/hour during the last 2 hours. Employing a time increment of 10 min, determine the rates and total depth of infiltration and rainfall excess from this rainfall using Horton equation and compare the results with the Modified Horton method.