How many SY will 1 CY of concrete cover if sidewalk is 40 wide by 4 deep?

To calculate how many square yards (SY) of concrete one cubic yard (CY) will cover, first determine the volume of the sidewalk. The sidewalk dimensions are 40 feet wide and 4 inches deep. Converting these measurements, we find that 40 feet equals 13.33 yards, and 4 inches equals approximately 0.11 yards. The volume of the sidewalk is 13.33 yards * 0.11 yards = 1.47 cubic yards. Therefore, 1 cubic yard of concrete will cover approximately 0.68 square yards (1 CY / 1.47 CY).