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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: <br />066 <br />State : Colorado <br />Permit/job #: C- 1996 -083 <br />Date : <br />1110212009 <br />County : Delta <br />Abbreviation : none <br />User: <br />JRS <br />Site Bowie No. 2 Mine <br />Filename :C083 -066 <br />Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <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 />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 Total fleet cost/hour : $ 259.69 <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Seismic : <br />Area : <br />Selected estimating method : Area <br />NA NA Load factor : NA <br />0.20 acres Rip depth (ft) : 2.00 <br />Source of estimated quantity : Operator Estimate <br />Source of estimated load factor :NA <br />HOURLY PRODUCTION <br />Alternate methods - <br />Seismic : Seismic velocity: <br />NA <br />feet/second <br />Unadjusted production : <br />NA <br />cu. yds. /hour <br />Area : Avg. ripping depth : <br />2.88' <br />feet/pass <br />Average ripping width : <br />8.67 <br />feet/pass <br />Average ripping length : <br />25.00 <br />feet/pass <br />Average dozer speed: <br />88.00 <br />feet/minute <br />Average maneuver time: <br />0.25 <br />minutes /pass <br />Production per unit area : <br />0.559 <br />acres /hour <br />Unadjusted production : <br />2,597.31 <br />cu. yds. /hour <br />JOB TIME AND COST <br />Bank volume: NA BCY <br />Volume: 645 BCY or CCY <br />Unadjusted production <br />per selected method: 2,597.31 cu. yds. /hour <br />Site altitude : 7,100 feet <br />Altitude adjustment: 1.00 (Cat HB) <br />Job efficiency factor: 0.83 (1 shift/day) <br />Net job correction : 0.83 multiplier <br />Adjusted unit production <br />Adjusted fleet production <br />2,155.77 <br />2,155.77 <br />cu. yds. /hour <br />cu. yds. /hour <br />Fleet size: 1 dozer(s) Total job time : 0.30 hours <br />Unit cost : $0.1 per cu. yd. Total job cost: $78 <br />Eggg <br />