Tower parts pre-fab for Mackinac Bridge (2 of 7)

Towers were drift-pinned together to test the fit then disassembled and transported to the bridge site.  Note the internal frames of the lower tower section on the left., Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Towers were drift-pinned together to test the fit then disassembled and transported to the bridge site. Note the internal frames of the lower tower section on the left.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)