Grouting during Mackinac Bridge construction (5 of 11)

The grout plant is busy making the grout that it will pump down into the aggregate inside the caisson.  One of the grout tubes is located on the left., Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: The grout plant is busy making the grout that it will pump down into the aggregate inside the caisson. One of the grout tubes is located on the left.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1955 (approximate)