Intermittent closures are scheduled at Watts Bar Lock noon to 5 p.m. July 27 and 7 a.m. to 5 p.m. July 28-30, 2020 due to scheduled diving and maintenance operations to lock components and mooring cells. The lock is located at Tennessee river mile 529.9 in Decatur, Tennessee. Call the lock at 423-334-3552 for more information.