Tag: Draw Spans

Aerial Lift Bridge: Interstate Bridge With The Span Open, Duluth, Minnesota

The Interstate Bridge between Duluth and Superior, originally called the "Duluth-Superior Bridge", was owned by the Great Northern railroad but never used by them. It was used by the Soo Line from 1909 until its closure in December 1961 when the new High Bridge opened. Built in 1897 by the Duluth-Superior Bridge Company, it carried two railway tracks as well as two tracks for streetcars. The center draw span, the largest of its kind when built, was 485-feet in length. Small tugs and ferries could pass underneath, and the outer spans were designed for passage of log rafts to upriver [...]

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