The Great Molasses Flood
A large storage tank containing 2.3 million U.S.
- Location
- North End, Boston, Massachusetts
- Deaths
- 21
- Wave height
- 25 feet (8 meters)
- Wave speed
- 35 miles per hour (56 kilometers per hour)
Lore & Background
The company claimed anarchists had blown up the tank, but a court-appointed auditor found USIA responsible after three years of hearings. Cleanup took weeks, using salt water and sand, and the harbor remained brown with molasses until summer. Residents reported the area still smelled of molasses on hot days for decades.
Reader's Guide
The Great Molasses Flood is significant as a landmark disaster in industrial and urban history, illustrating the dangers of poor construction and inadequate safety testing. The inquiry revealed that Arthur Jell, the company's treasurer, neglected basic safety tests and ignored warning signs like groaning noises. The event also occurred as the company was trying to out-race Prohibition, as the Eighteenth Amendment was ratified the next day. The class-action lawsuit against USIA is considered a milestone in the development of modern corporate regulation, setting a precedent for holding companies accountable for negligence. The disaster's unusual nature—a wave of molasses—entered local folklore, and its legacy includes lasting changes in industrial safety standards and legal liability.
Did You Know?
- The molasses wave was 25 feet high and moved at 35 miles per hour.
- The tank had been filled to capacity only eight times since it was built, putting cyclical stress on its walls.
- The class-action lawsuit against the United States Industrial Alcohol Company is considered a milestone in modern corporate regulation.
- Residents reported that the area still smelled of molasses on hot summer days for decades after the disaster.
Common Misconceptions (Editorial)
- Some believe the tank was destroyed by anarchists, as the company initially claimed, but a court-appointed auditor found the United States Industrial Alcohol Company responsible after three years of hearings. - The molasses wave is often exaggerated in size and speed, but records confirm it was 25 feet high and traveled at 35 miles per hour—still devastating, but not mythical in scale.
Why It Matters (Editorial)
The Great Molasses Flood endures as a stark reminder that industrial negligence can turn everyday materials into lethal forces. It also stands as a landmark case in corporate accountability, proving that no company is above the law when their failures cause mass tragedy.
More in Historic Disasters 1-21
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