Tower caisson for the Mackinac Bridge (2 of 45)

As the weather turns colder and ice starts to form the work of digging out overburden from the center of the tower caisson continues.  (1), Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: As the weather turns colder and ice starts to form the work of digging out overburden from the center of the tower caisson continues. (1)
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)