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<br />Need for the project <br /> <br />The FPCC is undertaking repairs to their ditch flow control <br />structures to ensure that it can efficiently divert water from <br />the South platte River. The FPCC currently uses two separate <br />structures to control the flow into their ditch. The first <br />structure is the main diversion located in the South Platte River <br />channel. This structure has a concrete rollover wall built in the <br />river channel and a set of gates with boards which allow flow <br />into the Pawnee Ditch. The second structure used to adjust flow <br />in the Pawnee ditch is located a few miles down the ditch from <br />the river structure. This structure is a series of gates adjusted <br />by boards through which a more precise adjustment can be made to <br />the flow continuing down the Pawnee ditch and has a channel <br />through which excess water can be returned to the river channel. <br />These two structures work together to deliver the proper and <br />legal amount of water to the FPCC shareholders. <br /> <br />The river structure is in fair condition and has been repaired <br />numerous times over the years. The river structure does have one <br />major flaw and that has to do with sand build up in front of the <br />structure. The concrete wall in the river does have several vents <br />that when opened allow for the flushing of sand by the structure. <br />Typically the vents can not be operated until the irrigation <br />season is over with. By the end of the summer a huge sandbar will <br />have formed in front of the structure and this sandbar can cause <br />diversion problems and maintenance problems within the ditch. The <br />river diversion needs to be modified to alleviate the sandbar <br />problem in the river. <br /> <br />The second flow control structure located down the ditch is also <br />in fair condition but is an older style of control gates and does <br />not allow for efficient adjustments to the ditch flow. The <br />existing board style gates are cumbersome, labor intensive and <br />require yearly if not monthly maintenance. The ditch control <br />structure needs to be upgraded to allow for more efficient ditch <br />flow adjustments. <br /> <br />Feasibility Study <br />Farmers Pawnee Canal Company <br />Flow Control Structures <br />July 2008 <br /> <br />2 <br />