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<br />Woodward.Clyde Consultants <br /> <br />Table 6-1 <br />Construction Cost Estimate <br />Alternative 1 <br /> <br />Item Quantity Units Unit Cost Cost <br />CIBWoll 14000 sf $15.00 $210,000 <br />Spillway Construction 1 Is $205.100 $205.100 <br />Toe Drain 600 II $10 $6,000 <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 $44!ii1(j()... <br />Mob/Oemob (8 %) $35.700 <br />Construction Observation (12 %) $53,500 <br /> I Sub Total ..ii.$535,300 <br />Contingency J 5 % $80.300 <br /> Grand Total $615.600 <br /> <br />Table 6-2 <br /> <br />Construction Cost Estimate <br />Alternative 2 <br /> <br />Item Quantity Units Unit Cost Cost <br />Excavation 4800 cy $1.50 $7.200 <br />Fill 8500 cy $5.00 $42,500 <br />Riprap 3200 cy $10.00 $32,000 <br />Bedding Material 1300 cy $12.00 $15.600 <br />SIB Wall 9000 sf $10.00 $90.000 <br />Filter Material 720 cy $12.00 $8.600 <br />Spillway Construction 1 Is $205.100 $205,100 <br />Toe Drain 550 II $10 $5.500 <br />Piezometers 1 LS $6,000 $6,000 <br />Monuments 1 LS $7.000 $7.000 <br />Surveys 1 LS $5,000 $5,000 <br />As-Built Drawings 1 LS $7.000 $7.000 <br /> Item Total .i..$431;5(j() <br />Mob/Oemob (8 %) $34 .500 <br />Construction Observation (12 %) $51,800 <br /> I Sub Total i$517;~00. <br />Contingency 15 % $77.700 <br /> Grand Total $595,500 <br /> <br />1o'CCNo_ 2B3g <br />