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<br />Woodward-Clyde Consultants <br /> <br />Table 6-3 <br /> <br />Construction Cost Estimate <br />Alternative 3 (selected alternative) <br /> <br />Item Quantity Units Unit Cost Cost <br />Excavation 26000 oy $1.50 $39.000 <br />Embankment Fill 26000 oy S5.oo $130,000 <br />Riprap t300 cy $10.00 $13.000 <br />Bedding Material 500 cy $12.00 $6.000 <br />Sand Drain 1500 oy $12.00 $18.000 <br />SIB Wan 4000 sf $5.00 $20,000 <br />CUI-Drr Collar 15 oy $375.00 $5.600 <br />Spillway Construction I Is $205.100 $205.100 <br />Toe Drain 550 ft $10 $5.500 <br />Piezometers 1 LS $6.000 $6.000 <br />Monuments 1 LS $7.000 $7.000 <br />Surveys I LS $5.000 $5.000 <br />As-Built Drawings I LS $7.000 $7.000 <br /> Item Total ',/$467;200: <br />MoblDemob (8 %) $37.000 <br />Construction Observation (12 %) $56.000 <br /> Sub Total /$560,200 . <br />Contingency 15% $84.000 <br /> Grand Total $644.200 <br /> <br />Dougl... .....r..olr wee No. 22519 <br />