Final roadway span of Mackinac Bridge (2 of 7)

Work processes on the final pieces of roadway spans in the spring of 1957, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Work processes on the final pieces of roadway spans in the spring of 1957
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)