St. Lawrence Seaway opening (1959)
The United States and Canada opened a 2,299-mile system of locks and canals connecting the Atlantic Ocean to the Great Lakes. For the first time, ocean vessels could reach Chicago, Detroit, and Duluth directly.
Great Lakes ports boomed with bulk cargo — grain, iron ore, and coal moved in large volumes through the new seaway.
Container shipping never took hold on the Great Lakes. Standardized containers continued to arrive via coastal ports and rail, a pattern that has persisted for six decades.
Burns Harbor's container plan depends on the seaway routes opened in 1959, and it aims to deliver what the seaway's first decades never produced: direct container service to the Midwest.
