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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />Date <br />User <br />1110212009 <br />JRS <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 Utility Bench <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 : $1,038.77 <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Seismic : NA NA Load factor <br />Area : 0.75 acres Rip depth (ft) <br />NA Bank volume <br />2.63 Volume <br />NA <br />3,182 <br />BCY <br />BCY or CCY <br />Source of estimated quantity : Map 15 -2 <br />Source of estimated load factor : <br />HOURLY PRODUCTION <br />Alternate methods - <br />Seismic : Seismic velocity: NA feet/second <br />Unadjusted production : NA cu. yds. /hour <br />Unadjusted production <br />per selected method : 3,390.93 cu. yds. /hour <br />Area : Avg. ripping depth : <br />2.88 <br />feet/pass <br />Site altitude : <br />6,800 <br />feet <br />Average ripping width : <br />8.67 <br />feet/pass <br />Altitude adjustment: <br />1.00 <br />(Cat HB) <br />Average ripping length : <br />50.00 <br />feet/pass <br />Job efficiency factor: <br />0.83 <br />(1 shift/day) <br />Average dozer speed : <br />88.00 <br />feet/minute <br />Net job correction : <br />0.83 <br />multiplier <br />Average maneuver time: <br />0.25 <br />minutes /pass <br />Production per unit area : <br />0.730 <br />acres /hour <br />Adjusted unit production : <br />2,814.47 <br />cu. yds. /hour <br />Unadjusted production : <br />3,390.93 <br />cu. yds. /hour <br />I Adjusted fleet production : <br />11,257.90 <br />cu. yds. /hour <br />JOB TIME AND COST <br />Fleet size : <br />4 <br />dozer(s) <br />Total job time : <br />0.28 <br />hours <br />Unit cost: <br />$0.092 <br />per cu. yd. <br />Total job cost: <br />$294 <br />County : Delta <br />Site :Bowie No. 2 Mine <br />Selected estimating method : Area <br />Abbreviation : none <br />Filename : C083 -060 <br />