Compute the peak runoff, Qp, for a 15-year storm using the Rational Method for a drainage basin located in Phoenix, Arizona, and having parameters as follows: A XXXXXXXXXXacres Time of concentration...

Compute the peak runoff, Qp, for a 15-year storm using the Rational Method for a drainage basin located in Phoenix, Arizona, and having parameters as follows: A 5 14.06 acres Time of concentration Overland flow: average grass, 100r long, 5.0% average slope Shallow concentrated flow: 50r long, 7.0% average slope Runoff coefficient Impervious: 0.06 acres Grass: 6.5 acres Woods: 7.5 acres Note: In the Arizona I-D-F curves, a 15-year storm is located by the corresponding P1 value, which for Phoenix is 1.75 inches.