Advertising for Mackinac Bridge (2 of 3)

Billboard signs such as this were erected on both sides of the straights so the public could have a better understanding of what was going on out there in the lake., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Billboard signs such as this were erected on both sides of the straights so the public could have a better understanding of what was going on out there in the lake.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)