Given the drainage area in Figure 4-43, calculate the dis-charge at the outfall using th...

Given the drainage area in Figure 4-43, calculate the dis-charge at the outfall using the rational method. Use the 5-year rainfall intensity-duration curve in Figure 4-28. Other data are: for Area 1, C = 0.50, area = 1.3 acres, and inlet time = 7min; for Area 2, C = 0.40, area = 2.5 acres, and inlet time = 5min; for Area 3, C = 0.70, area = 3.9acres, and inlet time = 5min; sewer lines in Areas 2 and 3 are each 500 ft in length; and the average velocity of flow in the sewers may be assumed to be 3.0 ft/sec. (Answer 20 cu ft/sec)