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IIVOOR�WaI`t:-C � <br />WCC performed investigations to establish design criteria to remediate seepage in the <br />area of the existing outlet works and to increase the size of the spillway to accommodate <br />75 percent of the Probable Maximum Flood. The fast track project required the field <br />investigation, feasibility study, design, review, and construction to be completed in six <br />months. WCC assisted the Windsor Reservoir and Canal Company in obtaining <br />financing for the project from the Colorado Water Conservatian Boazd. WCC also <br />provided cost estimates for the rehabilita.tion of the spillway and embanlcment and <br />provided construction observation and management services during the rehabilitation of <br />the dam and spillway. <br />Kemmerer City Dam, Wyoming - A landslide threatened the access road to a major <br />regionai recreational area surrounding the lake. In conjunction with design and <br />construction of other impravements to the d landslide was stabilized by unloading <br />the crest, constructing drains under t edirect groundwater, and improving <br />surface drainage. WCC provided se mcludin ' tigation; preparation of designs, <br />specifica.tions and cost estima c t e ering. <br />Grand River interceptor Ditch, Colorado - This interceptor ditch in Rocky Mountain <br />National Pazk diverts water to the east slope for irrigation. The ditch is about 100 years <br />old and pre-dates the National Pazk. In late spring of 1992 a laadslide occurred along <br />a portioa of this ditch blocking access to upstream portions of the projec� A geologic <br />reconnaissance coacluded that the landslide was largely confined to overburden soils <br />which averlie a steep bedrock surface. Recommendations were made relative to <br />stabilizing the slide and to retard slide debris from continuously ravelling down onto the <br />maintenance road. <br />Telluride Airport, Colorado - WCC investigated the fa.ilure mechanism and the cause of <br />failure for the landslide which took out a portion of the runway fill, closed the state <br />highway to Telluride, and buried a sand and graveI plant in the river valley bottom. Air <br />travel to the town was restricted until the slide azea was stabilized. <br />Hourglass Reservoir, Larimer Count�, Colorado - WCC conducted a feasibility level <br />geotechnical study for rehabilitating the city of Greeley's Haurglass Dam. A field <br />reconnaissance was made of the condition of the embankment and local geologic <br />wooawand-chrde consu�aMs <br />233601PR0_3 12-08-93(8:53Na)IRPT 3-% <br />