Cofferdam in Monongahela River by Locks and Dam 4 (3)

September 22, 1913

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Cofferdam in Monongahela River by Locks and Dam 4 (3)

Title
Cofferdam in Monongahela River by Locks and Dam 4 (3)
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
September 22, 1913
Identifier
20180220-hpichswp-0148
Source Identifier
PSS 23_B022_F02_I01
Description
An image of the cofferdam near Locks and Dam 4 of the Monongahela River. A cofferdam is an airtight structure that is pumped dry to enable construction below the shoreline. This cofferdam is partially filled with water still and is being inspected by a group of men. This lock and dam was located near Charleroi, Pa.
Type
still image
Genre
photographs
Subject
Rivers--Pennsylvania--Charleroi.
Monongahela River (W. Va. and Pa.)
Locks (Hydraulic engineering)--Pennsylvania--Charleroi.
Dams--Pennsylvania--Charleroi.
Cofferdams--Pennsylvania--Charleroi.
Labor--Pennsylvania--Charleroi.
Blue collar workers--Pennsylvania--Charleroi.
Construction projects--Pennsylvania--Charleroi.
Bridges--Pennsylvania--Charleroi.
Charleroi (Pa.)
Source
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives, c. 1900-1936, PSS 23, Detre Library and Archives, Heinz History Center
Contributor
Detre Library & Archives, Heinz History Center
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Rights Information
No Copyright - United States. The organization that has made the Item available believes that the Item is in the Public Domain under the laws of the United States, but a determination was not made as to its copyright status under the copyright laws of other countries. The Item may not be in the Public Domain under the laws of other countries. Please refer to the organization that has made the Item available for more information.
http://rightsstatements.org/vocab/NoC-US/1.0/