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EARTHWORK ESTIMATING -DOZER WORK (SINGLE SHIFT) <br />TASK DESCRIPTION - Backfill portals with clean dirt from the regrading work in the area. <br />Dirt will be stockpiled at the portals. <br />HOURLY EQUIPMENT COST <br />MACHINE MAKE AND MODEL - Cat D-4 WITH STRAIGHT BLADE <br />MACHINE RENT 9.34 $ / HR <br />OPERATING 12.12 $ / HR <br />OPERATOR 21.58 $ / HR <br />TOTAL HOURLY MACHINE COST = $43.04 <br />MATERIAL QUANTITIES <br />TASK 18 <br />Loose material from surface regrade SWELL = 1.00 <br />4 entries ~ 25 ft X 20 ft X B ft / 27 fUyd= 592.59 yards <br />DOZER PRODUCTION <br />DISTANCE 50 FT )FROM DOZER CURVES UNADJUSTED <br />ALTITUDE 5600 FT )HOURLY PRODUCTION <br />GRADE 0 % AVERAGE 300 CY/HR <br />JOB CORRECTION FACTORS: REMARKS <br />OPERATOR 0.75 average <br />MATERIAL CONSISTENCY 1.20 loose stockpile <br />D021NG METHOD 1.00 slot 50% of time <br />VISIBILITY 0.75 normal <br />JOB EFFICIENCY 0.67 40 min/hr <br />TRANSMISSION 1.00 normal <br />GRADE ADJUSTMENT 1.00 level <br />ALTITUDE ADJUSTMENT 0.97 nla <br />MATERIAL WEIGHT CORRECTION 0.79 2900 Ib/cuyd <br />BLADE TYPE 1.00 S Blade <br />TOTAL JOB CORRECTION FACTOF 0.348 <br />• <br />ADJUSTED HOURLY PRODUCTION 104.38 <br />JOB COST <br />TOTAL MATERIAL VOLUME 593 CUBIC YARDS <br />DOZER PRODUCTION 104.38 CUBIC YARDS PER HOUR <br />HOURS TO COMPLETE JOB 5.68 HOURS <br />TOTAL MACHINE COST $43.04 <br />COST PER UNIT VOLUME $0.412 DOZER COST = $244.36 <br />LABORER WORK - Seal all portals per approved MSHA plan. Use cinder block & minimal <br />Hitch into floor & rib. THIS MSHA PLAN WAS APPROVED JAN 2, 1994. <br />MATERIALS FOR SEALS <br />Assume that all portals are 8' by 20' = 160 sgft <br />Cinder Block = 8" X 16" 0.89 sgft <br />Seal 2 blocks wide - Number of block Needed = 360 blocks <br />Cost per seal $0.65 per block $234.00 per seal <br />use 6 bags mortar ~ 3.00 forjoints $18.00 <br />TOTAL MATERIALS PER SEAL = 252.00 <br />LABOR TO INSTALL <br />Use 2 men for Installation @ $20.00 per hour <br />2 days per seal $640.00 per seal <br />TOTAL LABOR & MATERIALS PER BASIC SEAL $892.00 <br />DRAINAGE PIPE IN ONE SEAL <br />Use 4" galvanized SD 40 with Trap and Valve $400.00 <br />COST OF FOUR SEALS AND ONE DRAIN $3,968.00 <br />• TOTAL SEALING COST = $4,212.36 <br />Mc VOL 1 - Tbl 3.7-1 TASK 18 11 - 19 - 98 <br />