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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task # : 06w State : Colorado Permit/job # : M-2007-044 <br />Date : 0210512008 County :Mesa Abbreviation :none <br />User : GRM Site : Whirlwind Mine Filename : M044-06w <br />Agency or organization name: DRMS <br />Permit or other job action :Initial Reclamation Liability Estimate <br />Task description :rip 7.41 acres of compacted areas <br /> <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series /l - 8U (2005) Horsepower : 310 <br />Blade type : 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 : $57.69 NA <br />Dozer operating cost/hour : $77.43 100 <br />Ripper operating cost/hour : $6.86 100 <br />Operator cost/hour : $32.78 NA <br />Total unit cost/hour : $174.75 Total fleet cost/hour : $174.75 <br /> <br />MATERIAL QUANTITIES <br />Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 7.41 acres Rip depth (ft) : 2.50 Volume : 29,887 BCY or CCY <br /> <br />Source of estimated quantity :reclamation plans <br />Source of estimated load 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 : 1,134.86 cu. yds./hour <br /> <br />Area : Avg. ripping depth : 1.00 feet/pass Site altitude : 6,800 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 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 : 0.703 acres/hour Adjusted unit production : 941.94 cu. yds./hour <br />Unadjusted production : 1,134.86 cu. yds./hour Adjusted fleet production : 941.94 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 31.73 hours <br />Unit cost : $0.186 per cu. yd. Total job cost : $5,545 <br />