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EARTHWORK ESTIMATING -HYDRAULIC EXCAVATOR (SINGLE SHIFT) <br />Task 2 <br />• TASK DESCRIPTION - Regrade steep slope area South of trailers. <br />HOURLY EQUIPMENT COST <br />MACHINE MAKE AND MODEL - <br />OWNERSHIP <br />OPERATING <br />ADJUSTMENTS <br />OPERATOR <br />MATERIAL QUANTITIES <br />BANK VOLUME <br />4,125 CUBIC YDS x <br />Cat 325 ATTACHMENTS <br />None <br />per hour $30.01 <br />per hour $28.89 <br />per hour none <br />per hour $23.13 <br />MACHINE COST = $82.03 <br />1.27 SWELL = 5,238.8 CUBIC YD5 <br />VERIFICATION OF VOLUME Fig. 3.1-4 Section C-C'; 445.5 sgft X 250 Ift <br />= 4,125 bcy; Swell from CAT handbook tables <br />EXCAVATOR PRODUCTION <br />ALTITUDE 5,600 FEET CORRECTION FACTOR none <br />• CYCLE TIME 0.33 MINUTES for average conditions <br />BUCKET PAYLOAD 1.57 LCY nominal heaped <br />TYPE OF MATERIAL Wet excavated earth <br />BUCKET FILL FACTOR 0.98 <br />ADJUSTED BUCKET PAYLOAD = 1.54 LCY <br />CYCLES PER HOUR = 151.52 (50 minutes per hour) <br />ADJUSTED HOURLY PRODUCTION = 233.12 LCY/HR <br />JOB COST <br />TOTAL MATERIAL VOLUME 5,239 CUBIC YARDS <br />EXCAVATOR PRODUCTIOP 233.12 CUBIC YARDS PER HOUR - <br />NUMBER OF EXCAVATOR; 1 <br />HOURS TO COMPLETE JOB 22.47 HOURS <br />TOTAL MACHINE COST $82.03 <br />TOTAL JOB COST <br />COST PER UNIT VOLUME $0.352 /LCY <br /> <br />$1,843.40 <br />Mc VOL 1 - Tbl 3.7-1 Task 2 11 - 19 - 98 <br />