Mackinac Bridge foundation construction (2 of 2)

View of the foundations and superstructure as it looked prior to the close of the season,  Prior to installation of the back stay spans., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: View of the foundations and superstructure as it looked prior to the close of the season, Prior to installation of the back stay spans.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)