Torqueing the bolts on the Mackinac Bridge

All bolts had a specific torque requirement.  These men use a torque wrench to tighten bolts to specs., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: All bolts had a specific torque requirement. These men use a torque wrench to tighten bolts to specs.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1956 (approximate)