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Surface Blasting Work Cont'd Task# 021 Page 3 of 3 <br />DRILLING AND EXPLOSIVES PREPARATION TIME <br />Total Drilling Length: 2,475 linear feet <br />Unadjusted Drilling Rate: 82.00 feet/hour <br />Drilling Time: 47.42 hours <br />Job Condition Corrections: <br />Site Altitude: <br />Altitude Adjustment: <br />Job Efficiency Factor: <br />Adjusted Drilling Rate: <br />Explosives Prep. Time: <br />JOB TIME AND COST <br />Unit cost: $2.723 <br />7,100 <br />0.95 <br />0.67 <br />52.19 <br />35.46 <br />per cu. yd. <br />Total Job Time: <br />Total Job Cost: <br />feet <br />(DRMS est.) <br />(CH. Exc. HB) <br />feet/hour <br />hours <br />82.88 Hours <br />$47,642.70 <br />CIRCES Cost Estimating Software <br />