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BULLDOZER RIPPING WORK <br /> Task Description: Rip Phase 1 Disturbed area, fines storage structure, road easements <br /> 123.3 acres total. <br /> PROJECT IDENTIFICATION <br /> Task#: 130 <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D7R DS XR Series 11 <br /> Ripper Attach 3 shank ripper <br /> Ownership Cost/Hour $81.02 <br /> Operating Cost/Hour $79.33 <br /> Ripper Own& Oper Cost/Hour $15.25 <br /> Operating Cost/Hour $30.90 <br /> Total Unit Cost/Hour $206.50 <br /> MATERIAL QUANTITIES <br /> Area: 123.3 <br /> Seismic: NA <br /> Bank Volume: NA <br /> Rip Depth(ft.) 1.00 <br /> BCY NA <br /> Volume: 198,924 BCY <br /> HOURLY PRODUCTION <br /> Area: <br /> Average Ripping Speed: 2.45 mph <br /> Average Ripping Width: 6.50 feet <br /> Average Ripping Length: 400 feet <br /> Average Dozer Speed: 88 fpm <br /> Average Maneuver Time: .25 minutes <br /> Production per unit area: 0.747 acres/hour <br /> 7 <br />