The creeper used for Mackinac Bridge construction (1 of 7)

Finishing up the creeper so it can start building the rest of the tower, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Finishing up the creeper so it can start building the rest of the tower
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)