Tower pier for the Mackinac Bridge (3 of 14)

Worn continues on the sinking of the tower pier caissons, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Worn continues on the sinking of the tower pier caissons
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)