Towers going up

Worker stands atop the south tower as the creeper brings the next piece up from the barge, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Worker stands atop the south tower as the creeper brings the next piece up from the barge
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)