Pier no. 30 and 31 of the Mackinac Bridge

The last two marine piers on the north end of the bridge, Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: The last two marine piers on the north end of the bridge
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)