Compute the composite runoff coefficient, c, for a drainage basin having the following cover conditions: Eight houses (25’  40’) Eight driveways (20’  35’) Eight lawns (sandy soil, 2% slope) (75'...

Compute the composite runoff coefficient, c, for a drainage basin having the following cover conditions:

Eight houses (25’
 40’)

Eight driveways (20’
 35’)

Eight lawns (sandy soil, 2% slope) (75'
 35’)

Road (15’
 600’)