Oliver Bridge, Double-deck railway and road bridge in Oliver and Duluth, US
Oliver Bridge is a steel structure that crosses the Saint Louis River between Minnesota and Wisconsin. The bridge has two levels stacked vertically, with trains running on the upper deck and cars traveling on the lower deck.
Construction started in 1910 by the Interstate Transfer Railway Company and opened in 1916 after Congress approved the project. The bridge was built to move iron ore and steel between the two states.
The bridge connects communities while serving as a transportation link for the movement of iron ore, steel, and commercial goods between states.
The road surface on the lower deck was reinforced and updated in 2000. Visitors can view the structure from the water or from the riverbanks nearby.
A swing section in the bridge was designed for river traffic but operated only once when an excursion boat passed through around 1930. The opening section remained inactive for decades after ferry service ceased.
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