Survey tower removal in the Straits of Mackinac

Survey tower being "pulled" out of the Straits of Mackinac after marine foundations were complete, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Survey tower being "pulled" out of the Straits of Mackinac after marine foundations were complete
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)