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Page 77 of 264 <br /> BULLDOZER RIPPING WORK <br /> Task description: Rip BC Walk Road <br /> Site: Trapper Mine Permit Action: RN8 Permit/Job#: C1981010 <br /> PROJECT IDENTIFICATION <br /> Task#: 063 State: Colorado Abbreviation: None <br /> Date: 7/6/2022 County: Moffat Filename: CO10-063 <br /> User: RAR <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D10T- lOSU Horsepower: 574 <br /> Ripper Attachment: 3-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: $153.67 NA <br /> Operating Cost/Hour: $166.94 100 <br /> Ripper Ownership Cost/Hour: $22.74 NA <br /> Ripper Operating Cost/Hour: $11.11 100 <br /> Operator Cost/Hour: $41.30 NA <br /> Total Unit Cost/Hour: $395.76 <br /> Total Fleet Cost/Hour: $1,583.05 <br /> MATERIAL QUANTITIES Selected estimating method: Area <br /> Alternate Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 7.50 acres Rip Depth(ft): 2.50 Volume: 30,250 BCY or CCY <br /> Source of estimated quantity: Appendix A Table 1.4-5 <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 2.50 feet/pass <br /> Average Ripping Width: 8.67 feet/pass <br /> Average Ripping Length: 500.00 feet/pass <br /> Average Dozer Speed: 88.00 feet/minute <br /> Average Maneuver Time: 0.25 minutes/pass <br /> Production per unit area: 1.007 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 1.007 Acres/hr <br /> Site Altitude: 6,400 feet <br /> Altitude Adj: 1.00 (CAT HB) <br /> Job Efficiency: 0.83 (1 shift/day) <br /> Net Correction: 0.83 multiplier <br /> Adjusted Hourly Unit Production: 0.84 Acres/hr <br /> Adjusted Hourly Fleet Production: 3.34 Acres/hr <br /> Trapper RN8 2022 December <br />