Tower progress on the Mackinac Bridge

View looking up one of the towers.  Riveting is in progress, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: View looking up one of the towers. Riveting is in progress
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1956 (approximate)