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Table 3 <br />Option 2 <br />Option 2 - Existing B112-02-00 Grade & City Constructed Detention <br />Item <br />No. <br />Item Description <br />I <br />Unit <br />I <br />Estimated Unit Price <br />Quantity <br />Total Cost <br />D4 - 7.4 <br />ac-ft Detention at City Property on B109-00-00 <br />16 <br />Excavation 0.8 ac Sitewl HCFCD ROW <br />CY <br />11,939 <br />$ 4.00 <br />$ 47,755 <br />17 <br />Final Grading & SWQ <br />SY <br />3,872 <br />$ 1.00 <br />$ 3,872 <br />Subtotal D4 - 7.4 ac-ft Detention at City Property on B109-00-00: $ 51,627 <br />B109-03-00 & B109-00-00 Channel Improvements (4,800 LF) <br />18 <br />Remove & Dispose of Existing Concrete Slope <br />Pavement <br />CY <br />269 <br />$ 6.70 <br />$ 1,804 <br />19 <br />Excavation (Channel) <br />CY <br />57,847 <br />$ 4.80 <br />$ 277,666 <br />20 <br />5" Reinforced Concrete Riprap, 2 Slopes at 2:1, <br />Ave. Depth 8 ft, (Include Subgrade Work) <br />CY <br />994 <br />$ 270 <br />$ 268,328 <br />21 <br />Concrete Low Flow Section (12' wide) <br />CY <br />1,264 <br />$ 300 <br />$ 379,259 <br />Subtotal B109-03-00 & B109-00-00 Channel <br />Improvements <br />(4,800 LF): $ 927,057 <br />Canada St. Bridge over 1311.2-02-00 (RCBs) <br />22 <br />RC Box's ($580 LF x 5 Barrels) <br />LF <br />350 <br />$ 680 <br />$ 203,000 <br />23 <br />Remove & Dispose of Existing Concrete Slope <br />Pavement <br />CY <br />393 <br />$ 6.70 <br />$ 2,630 <br />24 <br />Excavation (Channel) <br />CY <br />8,711 <br />$ 4.80 <br />$ 41,813 <br />25 <br />Approaches & TCP (Assume 25% of Bridge) <br />LS <br />1 <br />$ 50,750 <br />$ 50,750 <br />Subtotal Canada St. Bridge over B112-02-00 (RCBs): $ 298,194 <br />13112-02-00 Disconnect & Dam at B112-00-00 <br />26 <br />Remove & Dispose of Existing Concrete Slope <br />Pavement <br />CY <br />128 <br />$ 6.70 <br />$ 855 <br />27 <br />Excavation (Channel) <br />CY <br />366 <br />$ 4.80 <br />$ 1,756 <br />28 <br />Embankment <br />CY <br />1,170 <br />$ 7.50 <br />$ 8,775 <br />29 <br />24-IN RCP Low Flow OutPall Pipe <br />LF <br />130 <br />$ 50.00 <br />$ 6,500 <br />30 <br />5" Reinforced Concrete Riprap, 2 Slopes at 2:1, <br />Av. Depth 8.5, (Include Subgrade Work) <br />CY <br />21 <br />$ 270 <br />$ 5,610 <br />31 <br />Concrete Low Flow Section (16' wide) <br />CY <br />20 <br />$ 300 <br />$ 6,926 <br />Subtotal 13112-02-00 <br />Disconnect & Dam at <br />B112-00-00: $ 29,423 <br />Klotz Associates Project No. 0127,011.000 13112-02-00 Drainage Study <br />July 2009 2 of 3 City of La Porte <br />