A view (for a 1961 Photo Contest) of the Duluth-Superior high bridge's first span being lowered into place after construction began two years before on November 28, 1958.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections
An aerial view (for a 1961 Photo Contest) of the Duluth-Superior port and the incomplete high bridge, a tied-arch suspension span, whose construction began November 28, 1958 and was dedicated December 2, 1971.
Contributing Institution:
University of Minnesota Duluth, Kathryn A. Martin Library, Northeast Minnesota Historical Collections