Group 22: Kevin Flynn Niall Sweeney Michael Malone Teton Dam: Introduction Teton Dam today •Built in 1975 at a cost of $100million. •Water reservoir for irrigation, consumption and leisure activities. •Failed the following year upon its first filling. The eventual failure was first observed as muddy water flowing down the face of the dam, the response to which was to bulldoze earth into the hole. The eventual failure was first observed as muddy water flowing down the face of the dam, the response to which was to bulldoze earth into the hole. This developed further into a hole in the face of the dam, with water flowing rapidly from it. The eventual failure was first observed as muddy water flowing down the face of the dam, the response to which was to bulldoze earth into the hole. This developed further into a hole in the face of the dam, with water flowing rapidly from it. The crest of the dam then fell into the hole which developed on the face of the dam. The floodwaters destroyed the downstream town of Wilford, badly damaged the areas of Sugar City and Rexburg. 11 people and over 15,000 livestock were killed. The total damage, including claims, was estimated to be in excess of $ 2 billion. The exact cause of the failure has been widely disputed. Some have argued that the site selection played a key role. Others claim the dam failed due to inadequate protection of the core material from erosion. Other theories include seismic stability, wet seams in the embankment material and flaws in construction.