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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />Task #: 04a State :Colorado Permit/job# M--1977-310 <br />Date : 0812412010 County : Montrose Abbreviation :none <br />User : GRM Site :Jd-6 Mine Filename :M310-04a <br />Agency or organization name: DRMS <br />Permit or other job action :Final Reclamation Liability Estimate -2010 update _ <br />Task description : contour waste piles to 2:1 slopes and match topography <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series Il - 8SU (200! 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 />volume : 14,900 CCY factor : 1.215 volume : 18,104 LCY <br />Source of estimated volume :accepted volumes from previous estimates <br />Source of estimated swell factor :na <br />HOURLY PRODUCTION Job Condition Correction Factors Source <br /> Operator skill : 0.75 (avg.) <br />Average push distance : 100 feet Material consistency : 1.10 (Cat HB) <br />Unadjusted hourly production : 852.6 LCY/hr Dozing method : 1.00 (gen.)_ <br /> Visibility : 1.00 (avg.) <br />Material consistency description : Job efficiency : 0.83 (1shift1day) <br />Partly_c_onsolidated stockpile Spoil pile: 0.80 (fnd-rf) <br /> Push gradient : 1.22 (Cat HB) <br />Average push gradient : 10.00 % (neg) Altitude : 1.00 (Cat HB) <br />Average site altitude : 6,000 feet Material weight : 0.70 (Cat HB) <br /> Blade type : 1.00 (S/SU/U) <br />Material weight : 3,300 Ibs/LCY Net correction : 0.47 <br />Weight description : <br />Decomposed rock - 75% Rock, 25% Earth Adjusted unit production : 398.77 LCY/hr <br /> Adjusted fleet production : 398.77 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 1 Dozer(s) Total job time : 45.40 Hours <br />Unit cost : $0.413 /LCY Total job cost : $7,468