The first celebratory towboat locks through the new navigation chamber after a ribbon-cutting ceremony at the John P. Murtha Locks and Dam on the Monongahela River in Monessen, Pennsylvania, Aug. 28, 2024. The ceremony celebrated the renaming of Monongahela River Locks and Dam 4 in honor of the late Congressman John P. Murtha, who also served in the Marine Corps in Vietnam. The ceremony highlighted 20 years of construction for a modernized chamber measuring 720 feet long by 84 feet wide, which replaces an older, smaller chamber. The construction also included a control tower with state-of-the-art systems and the potential to remote-control other facilities in the future. The new chamber expands the facility’s capacity to support commercial navigation throughout the region and the nation. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)