Excavating at the north end of the Mackinac Bridge

Work continues in the plaza, office, and service area at the north end of the bridge, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Work continues in the plaza, office, and service area at the north end of the bridge
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)