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Carper Pit#2 Calculation Notes <br /> Calclulations are based on an an additional 2.0 acres proposed to be opened. <br /> Backfilling and grading <br /> 1,182 ft. Perimeter involved x 1 ft. (slope distance) = 1,182 sq.ft. <br /> 1,182 sq.ft. x 1 ft. (depth to grade) = 1,182 cu.ft. <br /> 1,182 cu.ft. / 27 cu.ft. = 44 CY <br /> 2 Ac. x 43,560 sq.ft.Area in Acre = 87,120 sq.ft. <br /> Area previously calculated + 1,182 sq.ft. <br /> 85,938 sq.ft. <br /> Depth to grade x 1 ft. <br /> 85,938 cu.ft. <br /> 85,938 cu.ft. / 27 cu.ft. = 3,183 CY <br /> + 44 CY <br /> Total Cubic Yards to move 3,227 CY <br /> Dozer will move 795 CY/Hour <br /> 3,227 CY / 795 CY/hour = 4.1 Hrs. <br /> Replace Topsoil <br /> 0 ft. (inches of. topsoil) x 163,750 = 0 cu.ft. <br /> (Slope only) <br /> 0.5 (inches of. topsoil) 1,182 = 591 <br /> (Floor) <br /> 0 cu.ft. / 27 cu.ft. = 0 CY <br /> 591 cu.ft. / 27 cu.ft. = 22 CY <br /> 22 CY <br /> Speedy Mover will move 117 CY/Hour <br /> 22 CY / 117 CY/Hour = 0.2 Hrs. <br />