Towers for the Mackinac Bridge going up (40 of 50)

The "creeper" lifts section to the top of a tower, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: The "creeper" lifts section to the top of a tower
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)