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Revision to Section 2.05.4(b) <br />Use 8 trucks @ 40 cy/load: <br />320 yd3 moved in .58 hours <br />24,200 yd3 320 yd3 = 75.6 trips x .58 = 44 hours <br />Trailer, 44 hours @ $12.36 x 8 units = $ 4,351 <br />Tractor, 44 hours @ $51.75 x 8 units = 18,216 <br />Cat 966, 44 hours @ $86.81 = 3,820 <br />TOTAL $26,387 <br />Remove Fill-Return To Cuts - 260,000 yd3 <br />637D Cat scraper 2% grade <br />D9L Dozer at one-fourth scraper hours <br />Loadtime .6 minutes <br />.25 mi. empty .6 minutes <br />• .25 mi. loaded .7 minutes <br />Dump .7 minutes <br />2.6 minutes <br />Trips/60 min hr. = 23 <br />Cap/trip = 27 yd3 <br />23 x 27 x 83% Efficiency = 515 <br />260,000 yd3 total mat. ~ 515 yd3/hr = 505/unit hours <br />Scrapers, 505 hours @ 5221.90 = $112,060 <br />Dozer, 126 hours @ $160.55 = 20,229 <br />TOTAL $132,289 <br />n <br />.J <br />751/70/27 Revised January 1985 <br />