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Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action :Succession of Operator Bond Calculation <br />Task description : Ripping compacted areas <br />..... <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series 11 - 8U (2005) Horsepower : 310 <br />Blade type :Universal <br />Attachment no. 1 :ROPS Cab Shiftbasis : 1 per day <br />Attachment no. 2 :3-shank ripper <br />MATERIAL QUANTITIES <br />Alternate methods - <br />Seismic : NA NA Load factor <br />Area : 1.00 acres Rip depth (ft) <br />Selected estimating method : Area <br />NA Bank volume <br />3.00 Volume <br />NA <br />4,840 <br />BCY <br />BCY or CCY <br />Source of estimated quantity :Previous bond calculation <br />Source'of estimated load factor :NA <br />X -X <br />HOURLY PRODUCTION <br />Alternate methods - <br />Seismic : Seismic velocity : NA feet/second <br />Unadjusted production : NA cu. yds./hour <br />Area : Avg. ripping depth : 2.56 feet/pass <br />Average ripping width : 7.08 feet/pass <br />Average ripping length : 300.00 feet/pass <br />Average dozer speed : 88.00 feet/minute <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.800 acres/hour <br />Unadjusted production : 3,302.24 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) <br />v11 -1. V? LIWII i 01.wia - <br />Unadjusted production <br />per selected method : 3,302.24 cu. yds./hour <br />Site altitude : 4,250 feet <br />Altitude adjustment : 1.00 (Cat HB) <br />Job efficiency factor : 0.83 (1 shift/day) <br />Net job correction : 0.83 multiplier <br />Adjusted unit production : 2,740.86 cu. yds./hour <br />Adjusted fleet production : 2,740.86 cu. yds./hour <br />Total job time : 1.77 hours <br />Unit cost : $0.064 per cu. yd. Total job cost : $309