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CIRCES Cost Estimating Software <br />PROJECT IDENTIFICATION <br />Task # : 02b <br />Date : 02/10/2003 <br />User: GRM <br />State :Colorado <br />County:Mesa <br />Site :15 Road Gravel Pit <br />Permit/job # : M-2002-114 <br />Abbreviation :none <br />Filename : M114-02b <br />Attachment no. 1 : NA Shift basis : 1 per day <br />Attachment no. 2 :Multi-shank ripper <br />Data source : (CRG) <br />MATERIAL QUANTITIES <br />Total area to be graded or ripped : 25.10 acres <br />Source of estimated <br />HOURLY PRODUCTION <br />Selected application :Finish grading (0-2.5 mph) <br />Average grader speed : 1.25 mph <br />Selected blade angle : 30 degrees ~ • at 0 degrees, blade is perpendicular <br />Effective blade length : 10.40 feet to direction of travel. <br />Width of blade overlap per pass : 2.00 feet <br />Net grading or ripping width per pass : 8.40, feet " •• width of ripper beam on dpping applications <br />Unadjusted hourly unit production : 1.2727 acres/hour <br />Job Condition Correction Factors Source <br />Average site altitude : 4,460 feet Altitude adjustment factor : 1.00 (Cat HB) <br />Job efficiency adjustment factor : 0.85 (1sh/d, mod.) <br />Net job correction : 0.8500 multiplier <br />Adjusted hourly unit production : 1.0818 acres/hour <br />