North backstay span of the Mackinac Bridge (3 of 12)

Crews prepare the pins for the north back stay span.  These ten inch diameter pins will be driven into position once the span is in place, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Crews prepare the pins for the north back stay span. These ten inch diameter pins will be driven into position once the span is in place
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955-12