Winter work on the Mackinac Bridge, 1956-57 (1 of 2)

Pile driver puts in posts along the dock at St.Ignace, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Pile driver puts in posts along the dock at St.Ignace
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1956 (approximate)