Other marine foundations for the Mackinac Bridge (2 of 2)

This steel framework for some of these cofferdams were 90 feet high as for pier number 14, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: This steel framework for some of these cofferdams were 90 feet high as for pier number 14
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)