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BULLDOZER RIPPING WORK <br />Task description: Rip 29,458' of Collom Haul Road <br />Site: Colowyo Coal Mine Permit Action: 13C (TR118) <br />PROJECT IDENTIFICATION <br />Task #: 003 State: Colorado <br />Date: 3/13/2018 County: Moffat <br />User: ZTT <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: OBSOLETE - Cat Dl lR - <br />11 SU <br />Ripper Attachment: 1 -Shank Ripper <br />Permit/Job#: C1981019 <br />Abbreviation: None <br />Filename: C019-003 <br />Horsepower: <br />850 <br />Shift Basis: <br />1 per day <br />Data Source: <br />(CRG) <br />Cost Breakdown: <br />Utilization % <br />Ownership Cost/flour: $220.12 NA <br />Operating Cost/Hour: $235.69 100 <br />Ripper Ownership Cost/Hour: $21.79 NA <br />Ripper Operating Cost/Hour: $11.30 100 <br />Operator Cost/Hour: $41.85 NA <br />Total Unit Cost/Hour: $530.75 <br />Total Fleet Cost/Hour: $1,061.49 <br />MATERIAL QUANTITIES Selected estimating method: Area <br />Alternate Methods: <br />Seismic: NA Bank Volume: NA BCY <br />Area: 18.90 acres Rip Depth (ft): 1.50 Volume: <br />Source of estimated quantity: Table 7 Exh. 13B -T-20 <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: NA <br />Area: <br />NA <br />45,738 BCY or CCY <br />feet/second <br />Average Ripping Depth: <br />3.00 <br />mph <br />Average Ripping Width: <br />7.94 <br />degrees <br />Average Ripping Length: <br />300.00 <br />feet <br />Average Dozer Speed: <br />88.00 <br />feet <br />Average Maneuver Time: <br />0.25 <br />feet <br />Production per unit area: <br />0.897 <br />acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: <br />0.897 <br />Acres/hr <br />Site Altitude: <br />7,500 <br />feet <br />Altitude Adj: <br />1.00 <br />(CAT HB) <br />Job Efficiency: <br />0.83 <br />(1 shift/day) <br />Net Correction: <br />0.83 <br />multiplier <br />Adjusted Hourly Unit Production: <br />0.74 <br />Acres/hr <br />Adjusted Hourly Fleet Production: <br />1.49 <br />Acres/hr <br />JOB TIME AND COST <br />