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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 066 State :Colorado Permit/job # :C-1996-083 <br />Date : 1110212009 County :Delta Abbreviation :none <br />User : JRS Site :Bowie No. 2 Mine Filename :C083-066 <br />Agency or organization name : Colorado Division Of Reclamation, Mi <br />Permit or other job action :2009 Midterm Review <br />Task description :Rip Rock Laydown Pad Topsoil <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D10R - 10SU (2005) Horsepower : 570 <br />Blade type : Semi-Universal <br />Attachment no. 1 :ROPS Cab Shift basis : 1 per day <br />Attachment no. 2:3-shank ripper <br /> Data source: (CRG) <br /> Utilizatio - <br />n % <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 Total fleet cost/hour : $259.69 <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods.- <br />Seismic: NA NA Load factor : NA Bank volume : NA BCY <br />Area : 0.20 acres Rip depth (ft) : 2.00 Volume : 645 BCY or CCY <br />Source of estimated quantity : Operator Estimate <br />Source of estimated lo ad factor :NA <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 : 2,597.31 cu. yds./hour <br />Area : Avg. ripping depth : 2.88 feet/pass Site altitude : 7,100 feet <br />Average ripping width : 8.67 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 25.00 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 : 6.559 acres/hour Adjusted unit production : 2,155.77 cu. yds./hour <br />Unadjusted production : 2,597.31 cu. yds./hour Adjusted fleet production : 2,155.77 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 0.30 hours <br />Unit cost : $0.120 per cu. yd. Total job cost : $78 <br />And Safety