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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 21A State : Colorado Permit/job # : C-80-007 <br />Date : 0611112010 County : Gunnison Abbreviation :none <br />User : TAK Site : West Elk Mine Filename : 0007-21A <br />Agency or organization name : CDRMS <br />Permit or other job action : TR-121 <br />Task description : Rip MDW pads approved in TR-121 (previously approved PR-14) <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D9R - 9SU (2005) Horsepower : 405 <br />Rlnrlo firna .Cami_I lnivarenl <br />AtLadnnenl. nu. 1 ROPS Cdb Skirt basis : I Net clay <br />Attachment no. 2:3-shank rinser <br />Cost Breakdown : Ownership cost/hour : <br />Dozer operating cost/hour : <br />Ripper operating cost/hour : <br />Operator cost/hour : <br />Total unit cost/hour <br />MATERIAL QUANTITIES <br />Utilization % <br />$66.95 NA <br />$120.00 100 <br />$6.95 100 <br />$38.54 NA <br />$232.44 Total fleet cost/hour : $929.76 <br />Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 10.99 acres Rip depth (ft) : 2.00 Volume : 35,461 BCY or CCY <br />Source of estimated quantity :Exhibit 80, TR-121, Project Details <br />Source of estimated load factor : NA <br />HOURLY PRODUCTION _ <br />Alternate methods - <br />Seismic : Seismic velocity : NA feet/second <br />Unadjusted production : NA cu. yds./hour <br />;ondition Correction Factors - <br />Unadjusted production <br />per selected method : 1,436.70 cu. yds./hour <br />Area : Avg. ripping depth : 1.00 feet/pass Site altitude : 7,100 feet <br />Average ripping width : 7.67 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length : 500.00 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 : 0.891 acres/hour Adjusted unit production <br />Unadjusted production : 1,436.70 cu. yds./hour Adjusted fleet production <br />JOB TIME AND COST <br />Fleet size : 4 dozer(s) Total job time <br />Unit cost : $0.195 per cu. yd. Total job cost <br />1,192.46 cu. yds./hour <br />4,769.83 cu. yds./hour <br />7.43 hours <br />$6,912