1.How many tons of asphalt concrete will be required to overlay a 3-mile-long, 24-ft.-wide road with 2.5 in. of wearing course asphalt concrete that has a density of 146.3 pcf?
2.Using the phi index calculated in part c, determine the volume of direct surface runoff (acre-ft) that would result from the following: hour: 1,2,3,4 ; intensity (in/hr): 0.40,0.05,0.30,0.20. phi index found to be 0.038 in/hr
3.Determine a composite SCS runoff curve number for a 600-acre basin that is totally within soil group C. The land use is 40 percent contoured row crops in poor hydrologic condition and 60 percent native parture in fair hydrologic condition.