Cable bent pier for Mackinac Bridge (4 of 15)

Crane works through one of the dredging wells in pier 18 to remove overburden from the bottom of the caisson, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Crane works through one of the dredging wells in pier 18 to remove overburden from the bottom of the caisson
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)