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BULLDOZER RIPPING WORK <br />Task description: Rip Remaining West Pit Highwall <br />Site: Colowyo Coal Mine Permit Action: Permit Renewal 06 Permit/Job #: C1981019 <br />PROJECT IDENTIFICATION <br />Task #: 025 State: Colorado <br />Date: 1/8/2013 County: Moffat <br />User: JRS <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D1 1R - 11U <br />Ripper Attachment: 1 -Shank Ripper <br />Abbreviation: None <br />Filename: C019 -025 <br />Horsepower: 850 <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br />Cost Breakdown: <br />3,500 <br />feet/second <br />Area: <br />Utilization % <br />Ownership Cost/Hour: <br />$143.02 <br />NA <br />Operating Cost/Hour: <br />$280.92 <br />100 <br />Ripper Operating Cost/Hour: <br />$15.45 <br />100 <br />Operator Cost/Hour: <br />$37.41 <br />NA <br />Total Unit Cost/Hour: <br />$476.80 <br />feet <br />Total Fleet Cost/Hour: <br />$1,907.19 <br />acres/hour <br />MATERIAL QUANTITIES <br />Selected estimating <br />method: Seismic <br />Alternate Methods <br />Seismic: 433,850 LCY Bank Volume <br />Area: NA acres Rip Depth (ft) <br />Source of estimated quantity: Mal <br />HOURLY PRODUCTION <br />433,850 <br />NA <br />19. 23.29 and 35A <br />BCY Midrange <br />Volume: NA BCY or CCY <br />Seismic Velocity: <br />3,500 <br />feet/second <br />Area: <br />Average Ripping Depth: <br />NA <br />mph <br />Average Ripping Width: <br />NA <br />degrees <br />Average Ripping Length: <br />NA <br />feet <br />Average Dozer Speed: <br />NA <br />feet <br />Average Maneuver Time: <br />NA <br />feet <br />Production per unit area: <br />NA <br />acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: <br />2,490.40 <br />Cu. yds./hr <br />Site Altitude: <br />7,600 <br />feet <br />Altitude Adj : <br />0.93 <br />(CAT HB) <br />Job Efficiency: <br />0.83 <br />(1 shift /day) <br />Net Correction: <br />0.77 <br />multiplier <br />Adjusted Hourly Unit Production: <br />1,922.34 <br />Cu. yds./hr <br />Adjusted Hourly Fleet Production: <br />7,689.36 <br />Cu. yds./hr <br />JOB TIME AND COST <br />Fleet size: 4 Grader(s) <br />Total job time: <br />56.42 <br />Unit cost: $0.248 Per cu. vd. <br />Total job cost: <br />$107,608.00 <br />Hours <br />CIRCES Cost Estimating Software <br />