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CIRCES Cost Estimating Software <br />BULLDOZER WORK <br />PROJECT IDENTIFICATION <br />Task # : 01a State :Colorado Permit/job# : M-1978-357 <br />Date <br />User <br />03/18/2008 <br />THM <br />County :Mesa <br />Site :Bradbury Pit <br />Abbreviation :none <br />Filename :M357-01a <br />Agency or organization name :DRMS <br />Permit or other job action :Final Reclamation Cost Update _ <br />Task description :Cut 10' highwall to 3H:1 V slope <br />HOURLY EQUIPMENT COST <br />Basic machine :Cat D8R Series 11 - 8SU (200f 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 /> Utilization _ <br />Cost Breakdown : Ownership cost/hour : $57.13 NA <br /> Operating cost/hour : $77.13 100 <br /> Ripper op. cost/hour : $3.35 50 <br /> Operator cost/hour : $32.78 NA <br /> Total unit cost/hour : $170.39 Total fl eet cost/hour : $170.39 <br /> <br />MATERIAL QUANTITIES <br />Initial Swell Loose <br />volume : 6,667 BCY factor : 1.330 volume : 8,867 LCY <br /> <br />Source of estimated volume :5'H x 60'W x (1,2001inear feet/2) _ <br />Source of estimated swell factor :CAT handbook <br /> <br />HOURLY PRODUCTION Job Condition Correction Factors Source <br /> Operator skill : 0.75 (avg.) <br />Average push distance : 60 feet Material consistency : 0.90 (Cat HB) <br />Unadjusted hourly production : 1,246.9 LCY/hr Dozing method : 1.00 (gen.) <br /> Visibility : 1.00 (avg.) <br />Material consistency description : Job efficiency : 0.83 (1shift/day) <br />Compacted fill or embankment Spoil pile : 0.80 _ (fnd-rf) <br />-- Push gradient : 1.36 (Cat HB) <br />Average push gradient : 16.50 % (neg) Altitude : 1.00 (Cat HB) <br />Average site altitude : 5,000 feet Material weight : 0.79 (Cat H_B) _ <br /> Blade type : 1.00 (S/SU/U) <br />Material weight : 2,900 Ibs/LCY Net correction : 0.48 <br />Weight description <br />Decomposed rock - 50% Rock, 50% Earth Adjusted unit production : 602.08 LCY/hr <br /> Adjusted fleet production : 602.08 LCY/hr <br /> <br />JOB TIME AND COST <br />Fleet size : 1 Dozers) Total job time : 14.73 Hours <br />Unit cost : $0.283 /LCY Total job cost : $2,509 <br /> <br />