The U.S. Army Corps of Engineers Nashville District, in partnership with Shimmick Construction and the Tennessee Valley Authority, is advancing the Chickamauga Lock replacement project with the delivery of 14 miter gate components from Dec. 5-23. These gates, designed to improve efficiency and reliability, mark a critical milestone in the construction of the new 110-foot by 600-foot navigation lock. Once completed, the new lock will significantly enhance capacity, accommodating up to nine jumbo barges at a time, boosting efficiency by 80% for commercial vessels on the Tennessee River.