Mackinac Bridge looking finished (2 of 6)

Upon close inspection of the photo, one finds the tower derricks are gone and some of the catwalk has been removed., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Upon close inspection of the photo, one finds the tower derricks are gone and some of the catwalk has been removed.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)