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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 05a State :Colorado Permit/job #:M-1977-310 <br />Date : 0812412010 County :Montrose Abbreviation :none <br />User : GRM Site :Jd-6 Mine Filename :M310-05a <br />Agency or organization name: DRMS <br />Permit or other job action :Final Reclamation Liability Estimate - 2010 update <br />Task description :rip compacted mine areas and roads <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series 11 - 8SU (200: Horsepower : 310 <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 : $53.54 NA <br /> Dozer operating cost/hour : $70.36 100 <br /> Ripper operating cost/hour : $6.29 100 <br /> Operator cost/hour : $38.54 NA <br /> Total unit cost/hour : $168.72 Total fleet cost/hour : $168.72 <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 3.00 acres Rip depth (ft) : 2.00 Volume : 9,680 BCY or CCY <br /> <br />Source of estimated quantity: accepted previous estimate volumes <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 : 2,269.73 cu. yds./hour <br /> <br />Area : Avg. ripping depth : 2.00 feet/pass Site altitude : 6,000 feet <br />Average ripping width : 7.08 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 100.00 feet/pass Job efficiency factor : 0.83 (1 shiWday)_ _ <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 : 0.703 acres/hour Adjusted unit production : 1,883.87 cu. yds./hour <br />Unadjusted production : 2,269.73 cu. yds./hour Adjusted fleet production : 1,883.87 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 5.14 hours <br />Unit cost : $0.090 per cu. yd. Total job cost : $867 <br />