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...

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 (-acre lots): 20 acres

Wooded (fair cover): 28 acres

Grass (fair condition): 20 acres