Baltimore's Francis Scott Key Bridge collapsed after a container ship collision, plunging cars into the water. The steel bridge, opened in 1977, spans the Patapsco River and is a key transportation hub for the U.S. East Coast and the Port of Baltimore. The bridge's truss-style design contributed to its total collapse, engineers say. Planned upgrades were scheduled for 2025, including replacing the deck and installing protection systems. The incident has caused major commute disruptions, redirecting traffic to alternative highways. The collapse has also halted ship traffic at the Port of Baltimore, impacting over 40 ships.