Hoisting a section of the Mackinac Bridge

After the barge arrives with two sections, one is hoisted up on either side of the tower to help keep things in balance, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: After the barge arrives with two sections, one is hoisted up on either side of the tower to help keep things in balance
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1957 (approximate)