Rocker bearings for the Mackinac Bridge (2 of 3)

These rocker bearings were located beneath trusses, between truss and pier to allow for smooth, wear free. movement of the steel as it expands and contracts due to heat and cold., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: These rocker bearings were located beneath trusses, between truss and pier to allow for smooth, wear free. movement of the steel as it expands and contracts due to heat and cold.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1956 (approximate)