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MOUNTAIN HOME RESERVOIR SPILLWAY AND OUTLET WORKS <br /> 1 - <br /> or*b <br /> .` <br /> ry <br /> Mountain Home Reservoir Outlet Flume <br /> Project Description <br /> ' The project consisted of construction of a concrete spillway, raising the crest of the <br /> Mountain Home Reservoir dam, and reconstructing the downstream end of the dam's outlet <br /> structure. <br /> ' Storage restrictions on the reservoir, due to an inadequately sized spillway, were removed <br /> by the construction of the new concrete spillway. The poorly consolidated upper embankment <br /> soils of the dam were repaired by raising and re-consolidating the dam crest. <br /> ' The lower reaches of the outlet works were leaking badly and in poor repair. Re- <br /> constructing this portion of the outlet works relieved significant erosion downstream of the <br /> reservoir. <br /> ' <br /> Project Data <br /> ' Sponsor: Trinchera Irrigation Company County: Costilla River:Trinchera Creek <br /> Terms of Loan: $980,675 @ 1% for 40 years Annual Payment: $29,871 <br /> Design Engineer: Smith Geotechnical Consultants - Ft. Collins, Colorado <br /> ' Contractor: ASI-RCC, Inc. - Buena Vista, Colorado <br /> ' Design Criteria: <br /> Spillway Crest: 200 feet <br /> Outlet Structure: 7'wide x 8'high concrete flume <br /> ' Annual Volume of Water Removed from Storage Restriction by Project: 7,351 acre-feet <br />