Other piers for the Mackinac Bridge (3 of 3)

A spud pile is being driver at one of the approach piers.  These were driven to "refusal" at bedrock., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: A spud pile is being driver at one of the approach piers. These were driven to "refusal" at bedrock.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)