Compute the peak runoff, Qp, for the drainage area in problem 11 for a 50-year storm. Express Qp in (a) cfs and (b) m3 /s. Note: In the Arizona I-D-F curves, the P1 value corresponding to a 50-year...

Compute the peak runoff, Qp, for the drainage area in problem 11 for a 50-year storm. Express Qp in (a) cfs and (b) m3 /s. Note: In the Arizona I-D-F curves, the P1 value corresponding to a 50-year storm is 2.25 inches.

Compute the composite curve number, CN, for a drainage basin having the following soils and cover conditions: Soils Bartley Loam: 45 acres Parker Loam: 25 acres Cover Impervious: 2.0 acres Residential (1 3-acre lots): 20 acres Wooded (fair cover): 28 acres Grass (fair condition): 20 acres