Stiffening trusses for the Mackinac Bridge (54 of 67)

Another section of stiffening truss is hoisted up., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Another section of stiffening truss is hoisted up.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)