An isometric 3D illustration of the Chickamauga Lock near Chattanooga, Tennessee, showcasing the final assembly and installation of the miter gates at the Chickamauga Lock replacement project, managed by the U.S. Army Corps of Engineers Nashville District. The project includes designing a new 110-foot by 600-foot navigation lock. A 2002 Corps of Engineers feasibility study confirmed the replacement is both feasible and economically justified. (USACE illustration by Joseph Cotton)