Construction equipment for Mackinac Bridge (5 of 5)

Merritt-Chapman and Scott marine construction equipment making a channel at Alpena, MI in order to float the first section of tower caisson No. 20 out of the assembly area and into Lake Huron for the 90 mile trip to the bridge site., Electronic reproduction of photograph.  The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Merritt-Chapman and Scott marine construction equipment making a channel at Alpena, MI in order to float the first section of tower caisson No. 20 out of the assembly area and into Lake Huron for the 90 mile trip to the bridge site.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)