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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />Task description: Rip Facilities Area <br />Site: Colowyo Coal Mine Permit Action: RN8 Permit/Job#: C1981019 <br />PROJECT IDENTIFICATION <br />Task #: 025 State: Colorado Abbreviation: None <br />Date: 8/17/2022 County: Moffat Filename: C019-025 <br />User: ZTT <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D11T - 11U Horsepower: 850 <br />Ripper Attachment: 1-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br />Cost Breakdown: <br /> Utilization % <br />Ownership Cost/Hour: $257.09 NA <br />Operating Cost/Hour: $273.21 100 <br />Ripper Ownership Cost/Hour: $34.31 NA <br />Ripper Operating Cost/Hour: $16.08 100 <br />Operator Cost/Hour: $41.30 NA <br />Total Unit Cost/Hour: $621.99 <br />Total Fleet Cost/Hour: $2,487.97 <br />MATERIAL QUANTITIES <br />Alternate Methods: <br />Seismic: 462,720 BCY Bank Volume: 462,720 BCY Midrange <br />Area: NA acres Rip Depth (ft): NA Volume: NA BCY or CCY <br />Source of estimated quantity: Maps 19 and 23 <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: 3,500 feet/second <br />Area: <br />Average Ripping Depth: NA feet/pass <br />Average Ripping Width: NA feet/pass <br />Average Ripping Length: NA feet/pass <br />Average Dozer Speed: NA feet/minute <br />Average Maneuver Time: NA minutes/pass <br />Production per unit area: NA acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: 2,490.40 Cu. yds./hr <br />Site Altitude: 7,600 feet <br />Altitude Adj: 0.93 (CAT HB) <br />Job Efficiency: 0.83 (1 shift/day) <br />Net Correction: 0.77 multiplier <br />Adjusted Hourly Unit Production: 1,922.34 Cu. yds./hr <br />Adjusted Hourly Fleet Production: 7,689.36 Cu. yds./hr <br />JOB TIME AND COST <br />Fleet size: 4 Grader(s) Total job time: 60.18 Hours <br /> <br />Unit cost: <br /> <br />$0.324 <br /> <br />Per cu. yd. <br /> <br />Total job cost: <br /> <br />$149,718 <br /> <br />Selected estimating method: Seismic