Aggregate barge (2 of 2)

Barges are loaded  with sand and aggregate for use by the concrete plant., Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Barges are loaded with sand and aggregate for use by the concrete plant.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)