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Contract S17611A <br /> Amendment #2 <br /> Project Description/ Estimated Timeframes <br /> Project Name Location Tasks Cost Start Com lete <br /> Project No. A -3 : Modify the Lateral "C" Canal The existing radial arm gate <br /> existingradial arm ate <br /> g structure consists of three discrete <br /> structure at the Lateral "C" <br /> radial arm gates . The middle radial <br /> Canal <br /> arm gate is set approximately one- <br /> foot below the other two gates and <br /> therefore , also serves as an <br /> overflow weir. When the radial , <br /> arm gates are opened , settled solids <br /> immediately upstream of the gate <br /> are re-suspended and discharged <br /> into the Indian River Lagoon . This <br /> project will replace one of the radial <br /> arm gates with a tilting-type weir <br /> gate . Purpose : ( 1 ) to provide more <br /> accurate water level control , (2) to E : <br /> allow more water to be retained <br /> upstream of the structure , and ( 3 ) to ., <br /> minimize release of settled solids 4y' <br /> when the water level is lowered . <br /> � , ��k ` ��`�a ug iw r�if <br /> Design and Permitting $ 16 ,271 5/ 15/2003 complete <br /> Land Acquisition ( 1 ) N/A N/A <br /> Construction $ 1739064 . 78 1 10/2005 <br /> . a ,^ P ,¢ • �i s ,f' O S <br /> .. �u ` <br /> Projec <br /> Floating t debris booms in Immediately upstream of the Install floating debrisacross� � <br /> l4 <br /> A- 4 • booms ,qL <br /> A . <br /> the proposed Main Relief Canal the canal to trap floating solids . n <br /> Main Relief Canal (Project vortex treatment system The collected solids will be <br /> will be designed and � <br /> g continuously removed using <br /> ;. <br /> constructed concurrently with mechanical equipment . <br /> Vortex -type treatment system Design and Permitting 5 See times for Pro ' ect <br /> in the Main Relief Canal ) <br /> A-6 <br /> Land Acquisition ( 1 ) N/A N/A <br /> Construction (5 ) See times for Project <br /> A -6 <br /> Page 5 of 9 <br />