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<br />, , <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />. . <br /> <br />Design <br /> <br />Deteriorated gates will be replaced with gates of the same size. main- <br />taining original flow capacity. Repairing and patching of concrete <br />will utilize either epoxy grout, pneumatic concrete or cast-in-place <br />concrete facings, Slight reduction in flow capacity is expected where <br />major repairs are required within the waterway. The choice of repair <br />method will be made on a structure~by-structure basis during the final <br />design phase. <br /> <br />New and replacement structures will be designed in general accordance <br />with the criteria contained in "Design of Small Canal Structures". a <br />USBR publication except that new or replaced cross-drain structures <br />will be sized to protect the canal from up to ten-year frequency storm <br />flows, Other structures will be sized to provi de the hydraul i c capa- <br />city of the original structure, <br /> <br />Erosion protection will be either concrete aprons or riprap, Geotech- <br />nical investigations for final design will include location of possible <br />riprap sources. General observation of riprap in use indicates it is <br />of poor durability and that durable work for riprap may not be economi- <br />cal. requiring concrete apron protection, Determination will be made <br />during final design, <br /> <br />GREAT PLAINS RESERVOIRS <br /> <br />Description of Improvements <br /> <br />The Great Plains Reservoirs are generally in good condition, The mason- <br />ry outlet structures for the Nee No She and Nee Skah Reservoirs need <br />pointing and patching and the gates and hoists need replacement. The <br />spi.llways for the two reservoirs need re-excavating and the Nee Skah <br />Reservoir: needs erosion protection on the upstream face. All of the <br />Great Piains Reservoirs are off-channel storage facilities, <br /> <br />Desiqn <br /> <br />Masonry will be pointed and patched with cement or epoxy grout, Re- <br />placement gate hoists will be of the same size and type as the originals, <br />Erosion protection will be designed to withstand expected wave action <br />with a full reservoir and the spillways will be sized to meet state dam <br />safety criteria. <br /> <br />GENERAL ITEMS <br /> <br />Buildings <br /> <br />Currently. the Amity has one maintenance building near Lamar and an office <br />in Holly, Maintenance operations will be improved by an additional buil- <br />ding near Holly and efficiency improved by insulating the existing building, <br /> <br />4-2 <br />