Wilson Main Lock at Tennessee River mile 259.4 is closing 7 a.m. to 4 p.m. daily Aug. 10-20 and Aug. 24 through Sept. 3, 2020 for diving operations at the lock. Wilson Lock operates a 24-hour schedule and anticipates cleaning any queues outside of these hours. The auxiliary lock will not be available during this time. For more information contact the lock at 256-764-5223.