Aggregate placement (10 of 18)

Great lakes self-unloading steamer, J. L. Riess, reaches over a barge with its boom to  places aggregate into caisson, Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Great lakes self-unloading steamer, J. L. Riess, reaches over a barge with its boom to places aggregate into caisson
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)