North backstay span of the Mackinac Bridge (8 of 12)

Once in position the back stay was lowered by partially sinking the barges ., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Once in position the back stay was lowered by partially sinking the barges .
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955-12-18