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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />'Task # : 024 State : Colorado Permit/job# : C-96-083 <br />Date : 0912812009 County :Delta Abbreviation :none <br />User: JRS Site :Bowie No. 2 Mine Filename : C083-024 <br />Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action :2009 Midterm Review <br />Task description : Regrade Hubbard Creek Vent Shaft Pad <br />HOURLY EQUIPMENT COST <br />Basic machine: Cat D10R - 10SU (2005) Horsepower:-, 570 <br />Blade type : Semi-Universal <br />Attachment no. 1 :ROPS Cab Shiftbasis : 1 per day <br />Attachment no. 2:3-shank ripper <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $92.20 NA <br />Operating cost/hour : $164.67 100 <br />Ripper op. cost/hour : $0.00 0 <br />Operator cost/hour : $38.54 NA <br />Total unit cost/hour : $295.41 Total fleet cost/hour : $1,181.65 <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />volume: 2,900 BCY factor: 1.250 volume <br />Source of estimated volume :Operator Estimate <br />Source of estimated swell factor : CAT Handbook <br />HOURLY PRODUCTION <br />Average push distance : 100 feet <br />Unadjusted hourly production : 1,718.9 LCY/hr <br />Material consistency description <br />Compacted fill or embankment <br />Average push gradient : 10.00 % (pos) <br />Average site altitude : 6,900 feet <br />Material weight : 2900 Ibs/LCY <br />Weight description : <br />Decomposed rock - 50% Rock, 50% Earth <br />JOB TIME AND COST <br />Fleet size : 4 Dozers) <br />Unit cost : $0.615 /LCY <br />3,625 LCY <br />Job Condition Correction Factors Source <br />Operator skill : 0.75 (avg.) <br />Material consistency : 0.90 (Cat HB) <br />Dozing method : 1.00 (gen.) <br />Visibility: 1.00 (avg.) <br />Job efficiency : 0.83 (lshift/day) <br />Spoil pile : 0.80 (fnd-rf) <br />Push gradient : 0.79 (Cat <br />HB) <br />Altitude : 1.00 _ <br />(Cat HB) <br />Material weight : 0.79 (Cat HB) <br />Blade type : 1.00 (S/SU/U) <br />Net correction : 0.28 <br />Adjusted unit production : 480.56 LCY/hr <br />Adjusted fleet production : 1,922.23 LCY/hr <br />Total job time : 1.89 Hours <br />Total job cost : $2,228