Summersville Dam
Part of the dam's system includes a 29-foot tunnel that is more than 1500-feet long. The tunnel provides the outlet for water flows from the Summersville Lake to the outlet structure. The tunnel could not be dewatered, and as a result, engineers could not examine it. Something was preventing an intake gate from sealing off properly.

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Photo by: USACE |  VIRIN: 131209-A-CE999-120.JPG