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, <br />, <br />' <br />8. Walker Drop Structure - The Summit Ditch has eroded about 7,600 cubic yazds of material <br />which not only impacts the cropland on the Walker property but sediment is conveyed to <br />downstream water users. The SCS looked at a design to construct a pipeline azound the azea that <br />would be 18 inch diameter to convey 14 cfs a distance of about 1,250 feet. <br />' 9. Joe Moore Measuring Flume - A measuring flume is recommended to be installed in the inlet <br />channel to Joe Moore Reservoir which will allow better records for use in operating the water <br />system. The flume is expected to be a Pazshall Flume. <br />' <br />' <br />1 <br />' <br />' <br />' <br />10. Turkey Creek Measuring Flume - A measuring flume is recommended to be installed in the <br />inlet channel to Summit Reservoir which will allow better records for use in operating the water <br />system. The flume is expected to be a Pazshall Flume. <br />11. South Main Ditch - The South Main Ditch originates at Puett Reservoir and flows southwazd <br />for about 2.7 miles before the first active headgate is encountered. In the first 0.5 miles the ditch <br />is in a natural drainage and drops 120 feet before leaving the channel into a ditch channel with an <br />erratic slope. Two lazge drainage's cross the ditch, from which runoff has caused overtopping of <br />the ditch. As the ditch approaches the first headgate, the slope is so flat that a consistent flow of <br />water cannot be maintained. There aze two general concepts for the ditch: (1) piping certain <br />sections and installing drainage crossings or (2) replacing the entire ditch with about 6,000 feet <br />of 12 inch pipe to convey 3.5 cfs so that presswe can be provided for sprinkler irrigation. <br />Replacing the ditch with pressure pipe is the prefened option if the irrigators that use the ditch <br />can use the pressure system and aze willing to pay for the pipe. <br />13. Repair Summit Dam Outlet - Summit is required to repair the outlet works of the Summit <br />, Dam by lining the outlet pipe and replacing the control gate and mechanism. The reservoir is not <br />yet under a restriction by the Dam Safety Engineer, but if the repairs aze not performed within the <br />next yeaz or two there will be a restriction. A bid has been received from "Insituform" to line the <br />, pipe with a cast-in-place tubulaz reconstruction material which is commonly used in sewer <br />pipelines and is becoming a common method to line dam outlet pipes and tunnels. The control <br />gate and gate stem will also be replaced. Summit Reservoir is empty in November, 1996 because <br />, of the extremely dry yeaz; Summit plans to have the repairs accomplished this fall and winter in <br />time to fill the reservoir in the spring. <br />' <br />, <br />!_ J <br />, <br />' <br />' <br />14. Miscellaneous System Upgrades - Item 14 is not shown on the Project Map because it is not <br />a specific location but includes system upgrades that are identified in addition to or instead of <br />some of the above items. These upgrades may include: replacement of other ditch sections with <br />pipelines to provide gravity pressure for sprinkler irrigation; lining of ditch sections and dam <br />repairs that develop after this feasibility study is approved; and other facilities that may be <br />determined for the Summit system last another 100 yeazs. The repairs that have been needed to <br />the Summit system the past 10 years have been not been planned but occurred after a wet spring <br />or some other development. <br />5 <br />