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Olympus Dam

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The concrete gravity section foundation consists of  pre-cambrian age rocks including granite, schist, and gneiss. This  foundation is commonly jointed as a result of compressional folding  and reverse faulting. The embankment foundation consists of sand,  gravel, and cobbles up to 15 feet deep lying over decomposed, fractured, and broken granite.

Last updated: Apr 02, 2013