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<br />4. Replace 100 feet of the river diversion structure with a <br />new bladder gate system and leave the other structures <br />unchanged: <br /> <br />This alternative would consist of replacing part of the <br />river diversion only. A 100 foot section of inflatable <br />bladder gate would replace part of the current concrete wall <br />system in the river channel. The remaining structures will <br />be left intact. This alternative will make the flow <br />adjustments at the river diversion and will not require any <br />changes to the secondary flow structure down the ditch. This <br />structure will greatly reduce the sandbar which forms <br />upstream from the current diversion thus reducing the <br />sanding problem in the ditch. The cost of this alternative <br />is approximately $850,000. <br /> <br />The Selected Project <br /> <br />The FPCC plans to construct alternative #3. Features of this <br />alternative are as follows: <br /> <br />A 12 foot wide radial gate will replace part of the concrete <br />wall system in the river channel. <br /> <br />Sheet piling will be used under the gate structure for <br />general stabilization and for protection from undercurrents. <br /> <br />Four 8 foot wide radial gates will replace the board gates <br />at the secondary flow control structure (3 in the ditch and <br />1 in the channel back to the river). <br /> <br />All wall and floor sections will all be steel reinforced <br />concrete with a minimum thickness of 12 inches. <br /> <br />All components of the radial gates will be made with <br />stainless steel. <br /> <br />Each gate will be equipped with sprinkler gearboxes for easy <br />lifting. <br /> <br />These features are shown in the preliminary set of plans found in <br />Appendix C. <br /> <br />Water Rights <br /> <br />Feasibility Study <br />Farmers Pawnee Canal Compelny <br />Flow Control Structures <br />July 2008 <br /> <br />4 <br />