Spring at the cable anchor piers of the Mackinac Bridge (2 of 2)

One of the floating marine cranes hoists a smaller mobile crane atop the cable anchor pier framework, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: One of the floating marine cranes hoists a smaller mobile crane atop the cable anchor pier framework
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)