Tower caisson for the Mackinac Bridge (29 of 45)

Crew doing repairs to the bottom of caisson No. 20 after it was damaged while trying to move it into Lake Huron., Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Crew doing repairs to the bottom of caisson No. 20 after it was damaged while trying to move it into Lake Huron.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)