Gismo for Mackinac Bridge construction (2 of 3)

Driving H-beams as an angle is a tough job.  The "gismo" made this demanding job go quite well.  The "gismo" was an adaptation of a steam pile driver that could operate at pre set angles and drive the pile right to the bottom of the cofferdam, under water.  Because of this machine, many thousands of dollars were saved in time and materials., Electronic reproduction of text.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Driving H-beams as an angle is a tough job. The "gismo" made this demanding job go quite well. The "gismo" was an adaptation of a steam pile driver that could operate at pre set angles and drive the pile right to the bottom of the cofferdam, under water. Because of this machine, many thousands of dollars were saved in time and materials.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)