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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 041 State : Colorado Permit/job # : C-1981-038 <br />Date : 12/02/2010 County :Delta Abbreviation :none <br />User: JRS Site :Bowie No. 1 Mine Filename :C038-041 <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 : Rip Roads <br />HOURLY EQUIPMENT COST <br />Basic machine :Cat D10R - 10SU (2005) Horsepower : 570 <br />Blade type :Semi-Universal <br />Attachment no. 1 :BOPS Cab Shift basis : 1 per day <br />Attachment no. 2 :3-shank ripper <br />Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $86.56 NA <br /> Dozer operating cost/hour : $126.50 100 <br />Ripper operating cost/hour : $8.09 100 <br /> Operator cost/hour : $38.54 NA <br /> Total unit cost/hour : $259.69 Tota l fleet cost/hour : $1,038.77 <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 0.55 acres Rip depth (ft) : 2.00 Volume : 1,775 BCY or CCY <br /> <br />Source of estimated quantity :Map 8-1 <br />Source of estimated l oad factor : NA <br /> <br />HOURLY PRODUCTION <br />Alternate methods - Job Condition Correction Factors - <br />Seismic : Seismic velocity: NA feet/second Unadjusted production <br />Unadjusted production : NA cu. yds./hour per selected method : 4,399.05 cu. yds./hour <br /> <br />Area : , Avg. ripping depth : 2.88 feet/pass Site altitude : 7,000 feet <br />Average ripping width : 8.67 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 200.00 feet/pass Job efficiency factor : 0.83 (1 shift/day) <br />Average dozer speed : 88.00 feet/minute Net job correction : 0.83 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.947 acres/hour Adjusted unit production : 3,651.21 cu. yds./hour <br />Unadjusted production : 4,399.05 cu. yds./hour Adjusted fleet production : 14,604.84 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 4 dozer(s) Total job time : 0.12 hours <br />Unit cost : $0.071 per cu. yd. Total job cost : $126 <br />