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<br />I <br />I <br />I <br />I <br />,I <br />I <br />I <br />I <br />I <br />'I <br />I <br />. <br />. <br />I <br />. <br />. <br />. <br />,. <br />'. <br /> <br />Table 2 <br /> <br />Rock Rapids, Iowa <br /> <br />Levee Construction and Interior Drainage - Site A <br />Preliminary Cost Estimates <br /> <br /> 100-yr Level of Protection <br />Item Unit Unit Cost Quantity Cost <br />1. Furnish and Place Fill for Levee CY $5 3200 $16,000 <br />2. 30" RCP Culverts (Interior Drainage) LF $50 112 $5.600 <br />3. Flap Gates (Interior Drainage) EA $3.000 4 $12,000 <br />4. Sand Bag Closure EA $2,000 1 $2,000 <br /> Subtotal $35.600 <br /> 25% Contingency $8.900 <br /> Total Cost $44,500 <br /> <br /> SOO-yr Level of Protection <br />Item Unit Unit Cost Quantity Cost <br />1. Fumish and Place Fill for Levee CY $5 24100 $120.500 <br />2. 30" RCP Culverts (Interior Drainage) LF $50 252 $12.600 <br />3. Flap Gates (Interior Drainage) EA $3.000 4 $12.000 <br />4. Sand Bag Closure EA $3.000 1 $3.000 <br /> Subtotal $148.100 <br /> 25% Contingency $37.025 <br /> Total Cost $185,125 <br />