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BULLDOZER RIPPING WORK <br /> Task description: Rip compacted areas <br /> Site: 32.5 Road Gravel Pit Permit Action: 2021 Permit/Job#: M2009035 <br /> PROJECT IDENTIFICATION <br /> Task#: 06A State: Colorado Abbreviation: None <br /> Date: 12/22/2021 County: Mesa Filename: M035-06a <br /> User: ACY <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D7R DS Series II LGP Horsepower: 240 <br /> Ripper Attachment: 3-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: $81.02 NA <br /> Operating Cost/Hour: $79.33 100 <br /> Ripper Ownership Cost/Hour: $9.32 NA <br /> Ripper Operating Cost/Hour: $5.93 100 <br /> Operator Cost/Hour: $40.04 NA <br /> Total Unit Cost/Hour: $215.64 <br /> Total Fleet Cost/Hour: $215.64 <br /> MATERIAL QUANTITIES Selected estimating method: Area <br /> Alternate Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 6.84 acres Rip Depth(ft): 2.00 Volume: 22,070 BCY or CCY <br /> Source of estimated quantity: Rec Plan and 2009 calc <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 1.00 feet/pass <br /> Average Ripping Width: 6.50 feet/pass <br /> Average Ripping Length: 100.00 feet/pass <br /> Average Dozer Speed: 88.00 feet/minute <br /> Average Maneuver Time: 0.25 minutes/pass <br /> Production per unit area: 0.646 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 0.646 Acres/hr <br /> Site Altitude: 4,620 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: 0.54 Acres/hr <br /> Adjusted Hourly Fleet Production: 0.54 Acres/hr <br /> JOB TIME AND COST <br /> Fleet size: 1 Grader(s) Total job time: 12.76 Hours <br /> Unit cost: $402.302 Per acre Total job cost: $2,752 <br /> CIRCES Cost Estimating Software <br />