Maintenance on the Mackinac Bridge (12 of 15)

Maintenance crews stand on the cable to their work, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Maintenance crews stand on the cable to their work
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1958 (approximate)