A welder from the U.S. Army Corps of Engineers Regional Rivers Repair Fleet welds one of the more than 40 cracks identified in the Old Hickory Lock chamber gates in Hendersonville, Tennessee, July 19, 2024. The water from the lock chamber is pumped out and repairs are made over the course of three weeks to ensure continued operability of the nearly 70-year-old lock. (USACE Photo by Braden Simmons)