Shipyard Exposure Index

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Shipyard Exposure Index

Comprehensive database of U.S. naval and commercial shipyards with documented asbestos exposure, workforce statistics, and compensation claim guidance.

American shipyards employed millions of workers during the 20th century, with peak employment during World War II and the Cold War. Asbestos was used extensively in ship construction, repair, and overhaul operations from the 1930s through the 1980s, creating one of the largest occupational exposure cohorts in U.S. history.

Shipyard workers face mesothelioma rates significantly higher than the general population. Insulators, pipefitters, boilermakers, and electricians worked in confined below-deck spaces where airborne asbestos fiber concentrations routinely exceeded safe exposure limits by 100 times or more. Because mesothelioma has a latency period of 20 to 50 years, workers exposed during the WWII shipbuilding surge and Cold War-era naval operations are still being diagnosed today. Every Navy vessel built between the 1930s and mid-1980s contained asbestos in over 300 distinct applications — from pipe insulation and boiler lagging to gaskets, fireproofing panels, and adhesive compounds — and no shipyard provided respiratory protection or warned workers of the hazard during this period.

Documented shipyard facilities: 25+ Peak combined employment: 1.5+ million workers (WWII) Estimated total workers exposed: 4.5+ million (WWII era alone) Primary exposure period: 1940-1980 Asbestos applications per vessel: 300+ distinct uses

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The Scale of WWII Shipyard Production

The wartime American shipbuilding mobilization was unprecedented in industrial history. In the decade before 1940, U.S. shipyards launched only 23 ships; between 1940 and 1945, that number surged to approximately 4,600 vessels — including 2,710 Liberty Ships, 414 Victory Ships, over 700 tankers, and more than 1,300 naval combat vessels. The San Francisco Bay Area alone produced 1,400 vessels, accounting for nearly 45% of all cargo shipping tonnage built nationally.

This output was achieved through revolutionary prefabrication methods. Henry Kaiser's seven shipyards — four in Richmond, California, and three in Oregon — produced nearly 1,500 ships with a workforce of approximately 90,000, setting speed records that reduced Liberty Ship construction from 250 days to under 50. The Brooklyn Navy Yard in New York employed 70,000 workers at peak, making it the largest industrial employer in New York State and the largest industrial center in the U.S. Navy. Nationwide, shipyard employment surged from approximately 168,000 in mid-1940 to over 1.5 million at the war's peak, with an estimated 4.5 million workers passing through shipyard employment during the war years.

Every one of these vessels contained asbestos in virtually every compartment — an estimated 24 to 30 tons of thermal insulation per destroyer, and up to 465 tons aboard Iowa-class battleships. Over 300 different asbestos-containing products were used aboard Navy ships between the 1930s and mid-1980s, and no shipyard provided respiratory protection or warned workers of the hazard.

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How Shipyard Workers Were Exposed

Asbestos was used in virtually every shipboard system:

• Insulation — Pipe covering, boiler lagging, turbine wrapping
• Fireproofing — Bulkhead panels, deck underlayment, cable coating
• Gaskets — Valve packing, flange seals, pump components
• Structural — Adhesives, cements, caulking compounds

Workers in all shipyard trades faced exposure, but those in engine rooms, boiler spaces, and insulation work faced the highest concentrations—often exceeding safe limits by 100x or more.

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Naval Shipyards

U.S. Navy shipyards conducted construction, repair, and overhaul of naval vessels. These facilities operated under federal authority and maintained detailed employment records now available through FOIA requests.

Shipyard	Location	Peak Employment	Operational Period	Profile
Brooklyn Navy Yard	Brooklyn, NY	70,000 (1944)	1801-1966	View Profile|-	Boston Naval Shipyard	Boston, MA	50,000 (1943)	1800-1974	View Profile|-	Charleston Naval Shipyard	Charleston, SC	26,000 (1943)	1901-1996	View Profile|-	Hunters Point Naval Shipyard	San Francisco, CA	18,000 (1945)	1941-1974	View Profile|-	Long Beach Naval Shipyard	Long Beach, CA	8,000	1943-1997	View Profile|-	Mare Island Naval Shipyard	Vallejo, CA	46,000 (1945)	1854-1996	View Profile|-	Norfolk Naval Shipyard	Portsmouth, VA	43,000 (1943)	1767-Present	View Profile|-	Pearl Harbor Naval Shipyard	Honolulu, HI	24,000 (1944)	1908-Present	View Profile|-	Philadelphia Naval Shipyard	Philadelphia, PA	40,000 (1944)	1801-1996	View Profile|-	Portsmouth Naval Shipyard	Kittery, ME	25,000 (1943)	1800-Present	View Profile|-	Puget Sound Naval Shipyard	Bremerton, WA	32,000 (1945)	1891-Present	View Profile|-	Washington Navy Yard	Washington, DC	Historic	1799-Present	View Profile|-	Newport News Shipbuilding	Newport News, VA	31,000	1886-Present	View Profile|} Commercial Shipyards Private shipyards built vessels for commercial shipping, the Merchant Marine, and military contracts. Many operated under Emergency Shipbuilding Program contracts during WWII. Shipyard Location Notable Production Profile Kaiser Shipyards Richmond, Portland, Vancouver Liberty Ships, Victory Ships View Profile|- Avondale Shipyard New Orleans, LA Commercial, Military View Profile|- Alabama Dry Dock and Shipbuilding Mobile, AL Liberty Ships, Repair View Profile|- Bath Iron Works Bath, ME Destroyers, Cruisers View Profile|- Bethlehem Shipbuilding Multiple Locations Diverse Naval/Commercial View Profile|- Electric Boat Groton, CT Submarines View Profile|- Fore River Shipyard Quincy, MA Battleships, Carriers View Profile|- Ingalls Shipbuilding Pascagoula, MS Destroyers, Amphibious View Profile|- New York Shipbuilding Corporation Camden, NJ Aircraft Carriers View Profile|- Tampa Bay Shipbuilding Tampa, FL Commercial Vessels View Profile|- Todd Shipyards Multiple Locations Repair, Construction View Profile|} Shipyard Occupations All shipyard workers faced asbestos exposure, but certain trades experienced the highest concentrations: Extreme Exposure Trades Insulators/Laggers — Direct asbestos handling daily Boilermakers — Confined space boiler work Pipefitters — Pipe insulation installation/removal Ship Scalers — Surface preparation in enclosed spaces Very High Exposure Trades Electricians — Wire insulation, panel work Machinists — Engine room equipment Welders — Heat shielding, cutting through insulation Sheet Metal Workers — Ductwork, ventilation systems High Exposure Trades Carpenters — Bulkhead installation, finishing Painters — Surface preparation, coatings Riggers — General construction support Laborers — Cleanup, material handling → View Complete Occupation Database Documenting Your Shipyard Employment Successful claims require documentation of: Employment dates — Pay stubs, tax records, union records Job classifications — Trade, rating, department Specific vessels — Ships worked on, repair vs. new construction Asbestos contact — Products used, removal work, confined spaces Record Sources National Personnel Records Center — Federal employment verification Social Security Administration — Employment history Union Records — Local union membership, job dispatches State Workers' Compensation — Prior injury claims Shipyard Personnel Offices — Some maintain historical records → View Evidence Documentation Guide Asbestos Products Used in Shipyards Documented asbestos-containing products used in shipyard operations: Johns Manville — Pipe insulation, block insulation Owens Corning — Fiberglass/asbestos insulation products Pittsburgh Corning — Unibestos block insulation Eagle-Picher — Thermal insulation products Garlock — Gaskets, packing materials Crane Co. — Valves with asbestos packing → View Complete Products List Compensation Pathways Shipyard workers may recover compensation through multiple channels: Asbestos Trust Funds — Bankruptcy trusts of former manufacturers Personal Injury Lawsuits — Against solvent defendants Veterans Benefits — For military service connection Workers' Compensation — State programs (varies by jurisdiction) Many shipyard workers recover $500,000 to $1,500,000+ through combined trust fund claims and litigation. Frequently Asked Questions How were shipyard workers exposed to asbestos? Shipyard workers were exposed to asbestos through direct handling of insulation materials, proximity to insulation installation and removal, and work in confined shipboard spaces where airborne asbestos fibers accumulated to concentrations exceeding safe limits by 100 times or more. Over 300 distinct asbestos-containing products were used aboard U.S. Navy ships between the 1930s and mid-1980s, and no shipyard provided respiratory protection or hazard warnings during this period. Which shipyard trades had the highest asbestos exposure? Insulators and laggers who handled raw asbestos materials daily faced the most extreme exposure, followed by boilermakers working in confined boiler spaces, pipefitters installing and removing pipe insulation, and ship scalers performing surface preparation in enclosed compartments. Electricians, machinists, welders, and sheet metal workers also faced very high exposure levels due to their proximity to asbestos-containing materials throughout the vessel. How many workers were affected by asbestos in U.S. shipyards? An estimated 4.5 million workers passed through U.S. shipyard employment during World War II alone, with peak nationwide employment exceeding 1.5 million at the war's height. The Brooklyn Navy Yard employed 70,000 workers at peak, while Kaiser's seven shipyards employed approximately 90,000. Shipyard asbestos exposure continued through the Cold War era until the 1980s, affecting millions more workers across naval and commercial facilities. What compensation is available for shipyard workers with mesothelioma? Shipyard workers diagnosed with mesothelioma may recover compensation through multiple channels: asbestos bankruptcy trust funds established by former manufacturers, personal injury lawsuits against solvent defendants, VA disability benefits for military-connected service, and state workers' compensation programs. Many shipyard workers recover between $500,000 and $1,500,000 or more through combined trust fund claims and litigation, depending on the number of identified asbestos product exposures and employment documentation. What documents do I need to file a shipyard asbestos claim? Successful shipyard asbestos claims require documentation of employment dates through pay stubs, tax records, or union records; job classifications including trade, rating, and department; specific vessels worked on distinguishing between repair and new construction; and evidence of asbestos contact through products used, removal work performed, and confined space assignments. Records can be obtained from the National Personnel Records Center, Social Security Administration, union locals, state workers' compensation offices, and shipyard personnel departments that maintain historical files. Related Resources Occupational Exposure Index — Complete occupation database Veterans Benefits — Military shipyard workers Navy Ships Asbestos Database — Vessel-specific exposure Secondary Exposure — Family member exposure from work clothes References