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Agency or organization name :Colorado Division Of Reclamation, Mining And Safety <br /> Permit or other job action : RN-05 <br /> Task description :Rip portal bench and portal access road <br /> <br /> HOURLY EQUIPMENT COST <br /> Basic machine : Cat D8R Series 11- 8SU Horsepower : 310 <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 : $53.92 NA <br /> Dozer operating cost/hour : $75.29 100 <br /> Ripper operating cost/hour : $7.98 100 <br /> Operator cost/hour : $32.53 NA <br /> Total unit cost/hour : $169.72 Total fleet cost/hour : $169.72 <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 : 1.60 acres Rip depth (ft) : 0.50 Volume : 1,291 BCY or CCY <br /> <br /> Source of estimated quantity :Surface features map <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 : 1,207.44 cu. yds./hour <br /> <br /> Area : Avg. ripping depth : 1.00 feet/pass Site altitude : 7,300 feet <br /> Average ripping width : 7.08 feet/pass Altitude adjustment : 1.00 (Cat HB) <br /> Average ripping length : 150.00 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 : 0.748 acres/hour Adjusted unit production : 1,002.18 cu. yds./hour <br /> Unadjusted production : 1,207.44 cu. yds./hour Adjusted fleet production : 1,002.18 cu. yds./hour <br /> <br /> JOB TIME AND COST <br /> Fleet size : 1 dozers) Total job time : 1.29 hours <br /> Unit cost : $0.169 per cu. yd. Total job cost : $219 <br /> <br />