Preparing Mackinac Bridge construction equipment for winter (1 of 3)

Some marine equipment, like this tug, were pulled out of the water for the winter., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Some marine equipment, like this tug, were pulled out of the water for the winter.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955-12