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Highwall Reduction <br />Assume 12 ft. maximum highwall <br />Cut and fill to 3H:1V <br />Approximate pit perimeter = 31500 Ift. <br />Volume of material to be moved calculated: <br />V =3,500 Ift. X 54 ft.2 = 189,000 ft.3 = 7,000 yds. 3 <br />Highwall <br />Fill = 54 ft.2 <br />Cut <br />I <br />I <br />12 ft. <br />18 ft. 18 ft.