Matthew Snyder, the acting chief of Engineering and Construction Division for the U.S. Army Corps of Engineers Pittsburgh District, shows a model of a fractured river wall to Jaime Pinkham, the Principal Deputy Assistant Secretary of the Army for Civil Works, prior to a groundbreaking ceremony at Montgomery Locks and Dam in Monaca, Pennsylvania, Aug. 11, 2023. The Upper Ohio Navigation Project is a multi-billion-dollar construction project that will replace locks at Emsworth, Dashields, and Montgomery locks and dams. The project will replace the auxiliary chambers, measuring 56 feet wide by 360 feet long, with locks measuring 110 feet wide by 600 feet long. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)