Drawing of the Mackinac Bridge (2 of 2)

Drawing of method for erecting stiffening trusses on the Mackinac Bridge, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Drawing of method for erecting stiffening trusses on the Mackinac Bridge
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1958 (approximate)