Aggregate placement (2 of 18)

Limestone, (Dolomite) from quarries at Drumand Island, MI. about 50 miles to the Northeast, was shipped in self-unloading lake freighters to the site. These vessels carried 12,000 tons per load. Vertical pipes (grout pipes) were installed from surface to the bottom prior to filling with aggregate., Electronic reproduction of photograph. The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Abstract/Description: Limestone, (Dolomite) from quarries at Drumand Island, MI. about 50 miles to the Northeast, was shipped in self-unloading lake freighters to the site. These vessels carried 12,000 tons per load. Vertical pipes (grout pipes) were installed from surface to the bottom prior to filling with aggregate.
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Date Created: 1954 (approximate)
Title: Aggregate placement (2 of 18).
Name(s): Superiorland Library Cooperative, contributor
Mackinac Bridge Authority, contributor
Type of Resource: still image
Date Created: 1954 (approximate)
Physical Form: photographs
Extent: 1 item
Abstract/Description: Limestone, (Dolomite) from quarries at Drumand Island, MI. about 50 miles to the Northeast, was shipped in self-unloading lake freighters to the site. These vessels carried 12,000 tons per load. Vertical pipes (grout pipes) were installed from surface to the bottom prior to filling with aggregate.
Note(s):

Electronic reproduction of photograph. The Mackinac Bridge 1954 - 1958. Mackinac Bridge Authority
Subject(s): Bridges--Design and construction
St. Ignace (Mich.)
Mackinaw City (Mich.)
Mackinac Bridge (Mich.)
Held by: Superiorland Library Cooperative
Restrictions on Access: In copyright (http://rightsstatements.org/vocab/InC/1.0/)
Is Part Of: Mackinac Bridge Authority photographs. Identifier: SLC-011
In Collections: