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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />Task # 024 <br />Date 1110212009 <br />User: JRS <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 />Permit/job# : C -96 -083 <br />Abbreviation :none <br />Filename : C083 -024 <br />HOURLY EQUIPMENT COST <br />State : Colorado <br />County :Delta <br />Site Bowie No. 2 Mine <br />Basic machine : Cat D10R - 10SU (2-005) Horsepower: 570 <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 <br />(CRG) <br />Utilization % <br />Cost Breakdown Ownership cost/hour: <br />$89.77 <br />NA <br />Operating cost/hour: <br />$128.30 <br />100 <br />Ripper op. cost/hour: <br />$0.00 <br />0 <br />Operator cost/hour: <br />$38.54 <br />NA <br />Total unit cost/hour: <br />$256.60 Total fleet cost/hour: $1,026.41 <br />MATERIAL QUANTITIES <br />Initial Swell <br />Loose <br />volume: Z900 BCY factor: <br />1.250 volume <br />3,625 <br />LCY <br />Source of estimated volume : Operator Estimate <br />Source of estimated swell factor: CA Handbook <br />HOURLY PRODUCTION Job Condition Correction Factors <br />Source <br />Operator skill : <br />0.75 <br />(avg.) <br />Average push distance 100 feet <br />Material consistency: <br />0.90 <br />(Cat HB) <br />Unadjusted hourly production 1,718.9 LCY/hr <br />Dozing method: <br />1.00 <br />(gen.) <br />Visibility: <br />1.00 <br />(avg.) <br />Material consistency description <br />Job efficiency: <br />0.83 <br />(1 shift1day) <br />Compacted fill or embankment <br />Spoil pile: <br />0.80 <br />(fnd-rt) <br />Push gradient: <br />0.79 <br />(Cat HB) <br />Average push gradient 10.00 % (pos) <br />Altitude : <br />1.00 <br />(Cat HB) <br />Average site altitude 6,900 feet <br />Material weight: <br />0.79 <br />(Cat HB) <br />Blade type <br />1.00 <br />(S/SU/Q) <br />Material weight: 2,900 lbs/LCY <br />Net correction <br />0.28 <br />Weight description : <br />Decomposed rock - 50% Rock, 50% Earth <br />Adjusted unit production <br />480.56 <br />LCY/hr <br />Adjusted fleet production <br />1,922.23 <br />LCY/hr <br />JOB TIME AND COST <br />Fleet size 4 Dozer(s) <br />Total job time <br />1.89 <br />Hours <br />Unit cost: $0.534 /LCY <br />Total job cost: <br />$1,936 <br />Z <br />