ID#: 9649
Caption:
Operator at control panel of the shield at the Queens Midtown Tunnel construction site, New York City. The tunnels “were excavated using huge. Disk-like devices called shields, which ere hydraulically shoved through the earth under the East River.” (from “From the Archive,” MTA Bridges and Tunnels Archives, Autumn 1998, p. 7) Original caption: Control panel at center of shield showing operator in position. The forward movement of the shield is accomplished by hydraulic pressure, 4,000 lbs. per square inch, and is controlled by opening and closing the various valves shown in illustration. Right-hand panel (at operator’s hand) controls movement of work tables in rear of shield.” U.S. Dept. of Labor negative number 1927 is housed at MTA Bridges & Tunnels Archives, NYC.
High Resolution: Click here for hi-resolution image (5.81 MB)
Content Provider(s): CDC/ Barbara Jenkins, NIOSH
Creation Date: 1939
Photo Credit: U.S. Dept. of Labor
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Anthropology, Education, Sociology and Social Phenomena
Biological Sciences
Chemicals and Drugs
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.