Panama Canal expansion (2016)
The canal opened a third set of locks, allowing neopanamax ships of roughly 14,000 containers to cross between the Pacific and Atlantic. That made very large vessels viable on U.S. Gulf and East Coast routes for the first time.
East and Gulf Coast ports rushed to deepen channels and buy bigger cranes; Savannah, Charleston, and New York-New Jersey led the wave.
Ship sizes kept growing past what many fixed bridges and channels could handle, forcing ports to choose between raising bridges or building downriver.
The same escalation made the Crescent City Connection too low for modern ships, driving the decision to build LIT downriver at Violet rather than try to widen the existing harbor.
