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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />Task # : 078 State : Colorado Permit/job# : C-1981-038 <br />Date : 1210212010 County : Delta Abbreviation : none <br />User: JRS Site : Bowie No. 1 Mine Filename : C038-078 <br />Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action 2010 Midterm Review (MT-6) <br />Task description : Backfll OVM Pipeline Removal Trench <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D10R - 10SU (2005) Horsepower : 570 <br />Blade type : Semi-Universal <br />Attachment no. 1 :ROPS Cab Shiftbasis : 1 per day <br />Attachment no. 2 :3-shank ripper <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $89.77 NA <br /> Operating cost/hour : $128.30 100 <br /> Ripper op. cost/hour : $0.00 0 <br /> Operator cost/hour : $38.54 NA <br /> Total unit cost/hour : $256.60 Total fleet cost/hour : $1,026.41 <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />volume : 3,611 CCY factor : 1.165 volume : 4,207 LCY <br />Source of estimated volume: 1988 Cyprus Estimate <br />Source of estimated swell factor : CAT Handbook <br />HOURLY PRODUCTION Job Condition Correction Factors Source <br /> Operator skill : 0.75 (avg.) <br />Average push distance : 50 feet Material consistency : 0.90 (Cat HB) <br />Unadjusted hourly production : 2,748.7 LCY/hr Dozing method : 1.00 (gen.) <br /> Visibility: 1.00 (avg.) <br />Material consistency description : Job efficiency : 0.83 (lshift/day) <br />Compacted fill or embankment Spoil pile : 0.80 (fnd-ro <br /> Push gradient : 1.11 (Cat HB) <br />Average push gradient : 5.00 % (neg) Altitude : 1.00 (Cat HB) <br />Average site altitude : 7,300 feet Material weight : 0.79 (Cat HB) <br /> Blade type : 1.00 (S/SU/U) <br />Material weight : 2900 Ibs/LCY Net correction : 0.40 <br />Weight description : <br />Decomposed rock - 50% Rock, 50% Earth Adjusted unit production : 1089.44 LCY/hr <br /> Adjusted fleet production : 4,357.77 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 4 Dozer(s) Total job time : 0.97 Hours <br />Unit cost : $0.236 /LCY Total job cost : $991