Monolithic effort to construct lock chamber heats up
Corps construction representatives oversee Shimmick contractors preparing to drill holes July 21, 2020 to install reinforcing steel in preparation to place more concrete for a monolith. The U.S. Army Corps of Engineers Nashville District is constructing a new navigation lock as part of the Chickamauga Lock Replacement Project at the Tennessee Valley Authority project on the Tennessee River in Chattanooga, Tennessee. (USACE Photo by Lee Roberts)