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EARTHWORK ESTIMATING -DOZER WORK (SINGLE SHIFT) <br />Task 1 <br />• TASK DESCRIPTION - Backfill/regrade mine road & bench area and re-establish <br />ephemeral drainage channels <br />HOURLY EQUIPMENT COST <br />MACHINE MAKE AND MODEL - Cat D-8N w/ S Blade ATTACHMENTS 3-shank ripper <br />OWNERSHIP COST/hr 46.40 <br />OPERATING COST/hr 51.67 <br />ADJUSTMENTS none <br />OPERATOR COST/hr 22.95 <br /> MACHINE COST $121.02 <br />MATERIAL QUANTITIES <br />41,810 CUBIC YDS x 1.10 SWELL = 45,991 CUBIC YDS <br />VERIFICATION OF VOLUMES FROM Permit Maps <br />DOZER PRODUCTION <br />PUSH DISTANCE 100 FT FROM DOZER CURVES UNADJUSTED <br />ALTITUDE 5600 FT HOURLY PRODUCTION <br />GRADE 15 % AVERAGE 803 CY/HR <br />JOB CORRECTION FACTORS: REMARKS <br />• OPERATOR 0.75 average <br />MATERIAL CONSISTENCY 0.90 Cat tbl <br />DOZING METHOD 1.00 general <br />VISIBILITY 1.00 normal <br />JOB EFFICIENCY 0.83 50 min/hr <br />SPOIL PILE FACTOR 0.90 <br />GRADE ADJUSTMENT 0.67 <br />ALTITUDE ADJUSTMENT 1.00 n/a <br />M'TL WEIGHT CORRECTION 0.82 n/a <br />BLADE TYPE 1.00 S Blade <br />TOTAL JOB CORRECTION FACTOR 0.278 <br />ADJUSTED HOURLY PRODUCTION 223.34 <br />JOB COST <br />TOTAL MATERIAL VOLUME <br />DOZER PRODUCTION <br />NUMBER OF DOZERS <br />HOURS TO COMPLETE JOB <br />TOTAL MACHINE COST <br />• <br />45,991 CUBIC YARDS <br />223.34 CUBIC YARDS PER HOUR <br />1 <br />205.92 HOURS <br />$121.02 <br />TOTAL JOB COST <br />COST PER UNIT VOLUME <br />$0.542 <br />$24,920.73 <br />Mc VOL 1 - Tbl 3.7-1 Task 1 11 - 19 - 98 <br />