ID#: 9650
Description: Caption:
Workers at the Queens Midtown Tunnel construction site, New York City. “To keep water out of the construction sites, compressed air - of up to 37.5/lbs per square inch - was supplied from special power houses. Sandhogs entered and left the work zone through ‘man locks’ in bulkheads, which sealed off the construction site underground. Inside the man locks, air pressure was gradually adjusted to allow the workers to safely enter or leave the excavation without experiencing decompression sickness, or the bends,caused by the release of nitrogen bubbles into the blood and tissues if decompression occurs too rapidly.”
Additional Information:
(From: MTA Bridges and Tunnels Arch., Aut, 1998, p.7.) Cap. 1: “N.Y.C. Tunnel Authority. Gang coming off shift, leaving cage at surface, Manhattan. Queens Midtown Tunnel.” Cap. 2: “Crew coming into compressed air from man lock at No. 1 bulkhead. Muck lock shown at lower left.” U.S. Dept. of Labor negative number 1947 is housed at MTA Bridges & Tunnels Archives, NYC.

The NIOSH Historic Photo Collection from which this photograph was derived, began as the Picture File of the Industrial Hygiene Division of the USPHS, c. 1930-1960. It is a unique collection of mid-20th Century images of American workers and workplaces, and documents occupational safety and health research of that era. The collection consists of approximately 1,000 original photographs and schematic drawings.

High Resolution: Click here for hi-resolution image (6.14 MB)
Content Providers(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
Social Sciences
Government
Government Agencies
United States Dept. of Health and Human Services
United States Public Health Service
Centers for Disease Control and Prevention (U.S.)
National Institute for Occupational Safety and Health
Biological Sciences
Environment and Public Health
Public Health
Accidents
Accident Prevention
Safety
Safety Management
Accidents, Occupational
Environmental Pollution
Environmental Exposure
Occupational Exposure
Maximum Allowable Concentration
Threshold Limit Values
Noise
Noise, Occupational
Waste Products
Industrial Waste
Health Occupations
Medicine
Specialties, Medical
Preventive Medicine
Occupational Medicine
Chemicals and Drugs
Chemical Actions and Uses
Toxic Actions
Environmental Pollutants
Air Pollutants
Air Pollutants, Environmental
Air Pollutants, Occupational
Industrial Waste
Diseases
Disorders of Environmental Origin
Occupational Diseases
Respiratory Tract Diseases
Lung Diseases
Geographic Locations
Geographic Locations
Americas
North America
United States
Appalachian Region
New York
Great Lakes Region
New York
New York City
Mid-Atlantic Region
New York
New York City
Health Care
Health Care Economics and Organizations
Organizations
Government Agencies
United States Dept. of Health and Human Services
United States Public Health Service
Centers for Disease Control and Prevention (U.S.)
National Institute for Occupational Safety and Health
United States Occupational Safety and Health Administration
Population Characteristics
Health
Occupational Health
Technology and Food and Beverages
Technology, Industry, and Agriculture
Manufactured Materials
Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.