Stiffening trusses for the Mackinac Bridge (31 of 67)

Lifting one section of truss while the one on the barge will go around to the other side of the tower and be hoisted up there to keep everything is balance., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Lifting one section of truss while the one on the barge will go around to the other side of the tower and be hoisted up there to keep everything is balance.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)