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<br />. <br /> <br />. <br /> <br />There is an emergency spillway which is 200 feet wide in the <br /> <br /> <br />left abutment. The outlet works consist of a corrugated metal <br /> <br /> <br />outlet conduit three feet (3') in diameter with a concrete wet <br /> <br /> <br />well and control gates located upstream of the dam crest. The <br /> <br /> <br />outlet conduit was replaced in 1958 at which time the original <br /> <br /> <br />outlet conduit was not removed or properly abandoned, but left <br /> <br /> <br />as existed in the dam foundation. <br /> <br /> <br />The upstream face of the dam was originally con- <br /> <br /> <br />structed to a 3: 1 slope with a concrete facing and concrete <br /> <br /> <br />apronwall. However, cracking of the concrete facing occurred <br /> <br /> <br />with subsequent erosion under the facing resulting in over <br /> <br /> <br />steeping of the face to nearly 1:1 slope in some areas. A sand <br /> <br /> <br />layer exists in the dam foundation which is causing excessive <br /> <br /> <br />seepage in the area of the outlet conduit and is promoting ero- <br /> <br /> <br />sion around the outlet at the toe of the embankment. The out- <br /> <br /> <br />let conduit has been inspected and is in a deteriorated state <br /> <br /> <br />with leakage occurring at several of the pipe joints. <br /> <br /> <br />For the past few years, the deterioration of these <br /> <br /> <br />structures has been of concern to both the owner and the State <br /> <br /> <br />Engineer. The State Engineer's Office has issued a restriction <br /> <br /> <br />upon this reservoir limiting storage to gage height of five <br /> <br /> <br />feet (5') which is two feet (2') below maximum storage capaci- <br /> <br /> <br />ty. If not repaired, increased restrictions may be placed on <br /> <br /> <br />the reservoir resulting in additional loss of stored water to <br /> <br /> <br />the irrigators. This reservoir had an initial capacity of <br /> <br />4,000 acre feet and at the present restriction is storing only <br /> <br />. <br /> <br />- 2 - <br />