Lock Operator July Howell monitors the Motor Vessel Natalie Alexander from the Port of Houston as it moves barges into Kentucky Lock Feb. 28, 2023. She works to safeguard navigators at the active lock on the Tennessee River, which is very close to a U.S. Army Corps of Engineers Nashville District construction project to build a new 1,200-foot-long by 110-foot-wide lock. (USACE Photo by Lee Roberts)