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<br /> <br />I <br />TABLE 3.9-1 EARTHWORK ESTIMATING HYDRAULIC EXCAVATOF Task 3 <br />SK DESCRIPTION - Regrade Munger Creek Crossing Near Topsoil Stockpile <br />~ and remove 72" CMP. Haul excess material to fill <br />sections on the mine bench. See Task 6 for trucking <br />HOUF2LY QUIPMENT COST <br />~ CHINE MAKE AND MODEL - <br />i <br />i <br />OWNERSHIP <br />~ OPERATING <br />ADJUSTMENTS <br />OPERATOR <br />MATERIAL QUANTITIES <br />i <br />~ Dimensions 5 ft X 100 ft X 6 t <br />556 CUBIC YDS 1.10 <br />VERIFlCATION OF VOL MES <br />EXCAVATOR HOURLY PRODU TION <br />Cat 325 <br />COST/hr 30.01 <br />COST/hr 28.89 <br />none <br />COST/hr 23.13 <br />MACHINE COST $82.03 <br />Volume 556 CUBIC YDS <br />SWELL = 611 CUBIC YDS <br />FROM FlGURES 3.1-9 <br />i ALTITUDE 5,600 FEET CORRECTION FACTOR none <br />CYCLE TIME 1.00 MINUTES Extra time to load truck <br />BUCKET PAYLOAD 1.27 LCY nominal heaped <br />TYPE OF MATERIAL Wet excavated earth <br />BUCKET FlLL FACTOR <br />ADJUSTED BUCKET PAYLOAD <br />CYCLES PER HOUR = <br />ADJUSTED HOURLY <br />JOB COST <br />• <br />TOTAL MATERIAL VOLUME <br />EXCAVATOR PRODUCTION <br />NUMBER OF EXCAVATORS <br />HOURS TO COME <br />TOTAL MACHINE <br />TOTAL JOB <br />COST PER UNIT VOLUME <br />Mu Vol I <br />1.21 LCY <br />50.00 (50 minutes per hour) <br />Page - 4 <br />= 60.33 LCY/HR <br />611 CUBIC YARDS <br />60.33 CUBIC YARDS PER HOUR <br />i <br />JOB 10.13 HOURS <br />T $82.03 <br />.360 /LCY <br />$830.99 <br />8/30/96 <br />