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Material will need to be excavated from the south side of the pit the length of the pit to <br />approximately 20 ft. depth by 107.5 ft. south of the pit in order to provide the 45,370 yds.3 of <br />material needed to backfill the pit to the level of the area south of the pit and grade north slope <br />to 3H:1V and the remaining slopes to 2H:1V. <br />Calculation: 45,370 yds.3 = (67.5 ft. x 20 ft. + .5(20 ft. x 40 ft.)) x 700 ft. <br />1750 feet 2 <br />1750 feet 2 <br />Ridgeline ---? <br />70°0 feet <br />20 feet <br />40 feet ---/ I <br />67.5 feet ? <br />20 feet <br />700 feet <br />30 feet <br />20 feet <br />30 feet <br />°° 20 feet <br />60 feet