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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />Task # : 005 State : Colorado Permit/job# : C-1981-019 <br />Date : 0910212009 County:Moffat Abbreviation :none <br />User : JRS Site : Colowyo Mine Filename : C019-005 <br />Agency or organization name : Colorado Division Of Reclamation, Mining And Safety <br />Permit or other job action : Permit Renewal 05 <br />Task description :Rip and Doze West Pit Highwall <br />HOURLY EQUIPMENT COST <br />Basic machine :Cat D11R - 11U (2005) Horsepower:- 850 <br />Blade type : Universal <br />Attachment no. 1 :ROPS Cab Shift basis : 1 per day <br />Attachment no. 2 :1-shank ripper <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $178.51 NA <br /> Operating cost/hour : $262.99 100 <br /> Ripper op. cost/hour : $14.70 100 <br /> Operator cost/hour : $38.54 NA <br /> Total unit cost/hour : $494.73 Total fleet cost/hour : $1,484.20 <br /> <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />volume : 1,551,000 LCY factor : NA volume : 1,551,000 LCY <br /> <br />Source of estimated volume: Operator Estimate <br />Source of estimated swell factor : NA _ <br /> <br />HOURLY PRODUCTION Job Condition Correction Factors Source <br /> Operator skill : a 75 (avg.) <br />Average push distance : 300 feet Material consistency : 1.20 (Cat HB) <br />Unadjusted hourly production : 1,055.6 LCY/hr Dozing method : 1.10 (50% sl) <br /> Visibility: 1.00 (avg.) <br />Material consistency description : Job efficiency : 0.83 (1 shift/day) <br />Loose stockpile Spoil pile : 1.00 (doz-oc) <br />Average push gradient : 30.00 % (neg) <br />Average site altitude : 7,500 feet <br />Material weight : 2,900 Ibs/LCY <br />Weight description : <br />Decomposed rock - 50% Rock, 50% Earth <br />JOB TIME AND COST <br />Fleet size : 3 Dozer(s) <br />Unit cost : $0.449 /LCY <br />Push gradient <br />Altitude <br />Material weight : <br />Blade type <br />Net correction <br />Adjusted unit production <br />Adjusted fleet production <br />Total job time <br />Total job cost : <br />1.60 (Cat HB) <br />1.00 (Cat HB) <br />0.79 (Cat HB) <br />1.00 (S/SU/U) <br />1.04 <br />1101.17 LCY/hr <br />3,303.52 LCY/hr <br />469.50 Hours <br />$696,831