Vince De Carlo, the acting deputy district engineer for the U.S. Army Corps of Engineers Pittsburgh District, talks to Col. Nicholas Melin, the incoming district commander, on a helicopter ride over the Monongahela River to view parts of district’s area of responsibility July 21, 2023. Pittsburgh District’s 26,000 square miles include portions of western Pennsylvania, northern West Virginia, eastern Ohio, western Maryland, and southwestern New York. It has more than 328 miles of navigable waterways, 23 navigation locks and dams, 16 multi-purpose flood-control reservoirs, 42 local flood-protection projects, and other projects to protect and enhance the nation’s water resources infrastructure and environment. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)