Stiffening trusses for the Mackinac Bridge (9 of 67)

These are some of the final pieces of the stiffening trusses to put into the bridge suspension span, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: These are some of the final pieces of the stiffening trusses to put into the bridge suspension span
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)