Cable spinning for Mackinac Bridge (42 of 67)

"Heads up"  as the ringing cow bell on the "spinning wheel" alerts crews of its approach., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: "Heads up" as the ringing cow bell on the "spinning wheel" alerts crews of its approach.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1956 (approximate)