Tower pier for the Mackinac Bridge (10 of 14)

Much working going on at this tower caisson as three marine cranes remove overburden and deposit it in the lake next to the caisson while a tug and barge deliver supplies to the site. (2), Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Much working going on at this tower caisson as three marine cranes remove overburden and deposit it in the lake next to the caisson while a tug and barge deliver supplies to the site. (2)
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)