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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task # : 03a State : Colorado Permit/job # : M-2005-050 <br />Date : 0110912008 County :Montrose Abbreviation :none <br />User : GRM Site :J-Birds Mine Filename :M050-03a <br />Agency or organization name: DRMS <br />Permit or other job action :Periodical and SO Update -2008 <br />Task description :rip 2 acres of disturbance prior to topsoil <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D7R DS Series I/ - 7SU Horsepower : 240 <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 : $46.68 NA <br />Dozer operating cost/hour : $56.19 100 <br />Ripper operating cost/hour : $1.07 25 <br />Operator cost/hour : $32.78 NA <br />Total unit cost/hour : $136.73 Total fleet cost/hour : $136.73 <br />MATERIAL QUANTITIES <br />Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 2.00 acres Rip depth (ft) : 2.00 Volume : 6,453 BCY or CCY <br /> <br />Source of estimated quantity : reclamation plans <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 : 2,083.79 cu. yds./hour <br /> <br />Area : Avg. ripping depth : 2.00 feet/pass Site altitude : 6,550 feet <br />Average ripping width : 6.50 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 Netjob correction : 0.83 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.646 acres/hour Adjusted unit production : 1,729.54 cu. yds./hour <br />Unadjusted production : 2,083.79 cu. yds./hour Adjusted fleet production : 1,729.54 cu. yds./hour <br /> <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 3.73 hours <br />Unit cost : $0.079 per cu. yd. Total job cost : $510 <br />