Caisson construction for Mackinac Bridge (2 of 3)

St. Ignace yard where caisson frames were fabricated.  This round frame is for the north cable bent pier, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: St. Ignace yard where caisson frames were fabricated. This round frame is for the north cable bent pier
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)