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Revised June 13, 1984 <br />Overburden Stockpile Area: <br />Average haul distance <br />volume <br />= 1,000 ft. <br />= 18,800 cy* <br />+ 28,200 cy* <br />47,000 cy <br />From above, 657B scraper produces 485 cy/hr <br />To move 47,000 cy it will take 97 hours <br />657 cost/hr = $178.54; 5178.54 x 97 hours = $ 17,300 <br />*From Table 71 <br />Surface Facilities, Haul and Access Roads <br />Average haul distance = 5,000 ft. <br />volume = 23,200* <br />. 657B scraper can produce 216 cy/hr at 5,000' haul (60$ efficiency, <br />68 RR, 08 grade) <br />Actual production = <br />ideal x altitude adjustment equals 216 x .905 = 195 cy/hr <br />To move 23,200 cy it will take 119 hours. <br />657 scraper cost/hr = $178.54; 5178.54 x 119 hours = S 21,200 <br />TOTAL Topsoil Replacement Cost = $ 88,900 <br />*From Table 71 <br />TOTAL Revegetation Cost: <br />$827.00/acre x 158.50 acres = 5131,100 <br /> <br />lU <br />