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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 21H State : Colorado Permit/job # C -80 -007 <br />Date <br />User <br />0710612010 <br />TAK <br />County : Gunnison <br />Site West Elk Mine <br />Blade type Semi - Universal <br />Attachment no. 1 : ROPS Cab Shift basis : 1 per day <br />Attachment no. 2 : -shank ripper <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Seismic : NA NA Load factor <br />Area : 5.54 acres Rip depth (ft) <br />Selected estimating method : Area <br />NA Bank volume <br />2.00 Volume <br />NA BCY <br />17,876 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 <br />Unadjusted production <br />Area : Avg. ripping depth <br />Average ripping width <br />Average ripping length <br />Average dozer speed <br />Average maneuver time <br />Production per unit area <br />NA <br />feet/second <br />NA <br />cu. yds. /hour <br />1.00 <br />feet/pass <br />7.67 <br />feet/pass <br />500.00 <br />feet/pass <br />88.00 <br />feet/minute <br />0.25 <br />minutes /pass <br />0.891 <br />acres /hour <br />Unadjusted production: 1,436.70 cu. yds. /hour <br />JOB TIME AND COST <br />Fleet size : 4 dozers) <br />Unadjusted production <br />per selected method : <br />1,436.70 <br />cu. yds. /hour <br />Site altitude : <br />7,100 <br />feet <br />Altitude adjustment: <br />1.00 <br />(Cat HB) <br />Job efficiency factor: <br />0.83 <br />(1 shift/day) <br />Net job correction : <br />0.83 <br />multiplier <br />Adjusted unit production : <br />1,192.46 <br />cu. yds. /hour <br />Adjusted fleet production : <br />4,769.83 <br />cu. yds. /hour <br />Total job time : <br />3.75 <br />hours <br />Abbreviation : none <br />Filename :0007 -21H <br />Unit cost : $0.195 per cu. yd. Total job cost: $3,484 <br />