Douglas Lamont, senior official performing duties of secretary of the Army for Civil Works, gets a briefing on the deteriorating Chickamauga Lock and its replacement lock project Feb. 28, 2017 in Chattanooga, Tenn., from Army Corps of Engineers Nashville District and Tennessee Valley Authority officials. Lamont visited to gain a better understanding of aging infrastructure. The Tennessee Valley Authority owns the dam while the Nashville District operates and maintains the lock. (USACE

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