Getting roadway spans ready for the Mackinac Bridge (4 of 7)

Aerial view of yards in St.Ignace where winter work included assembly of the stiffening or suspended trusses., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Aerial view of yards in St.Ignace where winter work included assembly of the stiffening or suspended trusses.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)