North End Submerged as 2.3 Million Gallons of Molasses Spill

Boston: A catastrophic industrial accident struck Boston on Wednesday, January 15, 1919, when a massive steel tank storing millions of gallons of molasses suddenly burst in the city’s North End, unleashing a destructive wave that killed at least 21 people and injured more than 150 others.

Authorities said the storage tank, owned by the United States Industrial Alcohol Company, collapsed shortly after midday. Approximately 2.3 million gallons of molasses surged into nearby streets, rising up to 25 feet in height and sweeping away buildings, wagons, railway structures, and everything in its path.

Locals reported scenes of panic and chaos as pedestrians and animals were trapped in the thick, fast-moving syrup. Many victims were unable to free themselves as the molasses rapidly hardened in the cold winter temperatures.

Police, firefighters, soldiers, and naval personnel rushed to the area to carry out rescue operations. Survivors were pulled from the sticky flood hours later, while recovery of bodies continued for several days due to debris and solidified molasses.

Hospitals confirmed that the injured suffered from fractures, internal injuries, and suffocation. Cleanup operations lasted for weeks, with streets, homes, and even the harbor coated in molasses.

The disaster triggered a major investigation after reports surfaced that the tank had been leaking prior to the collapse. The incident later became a landmark case in industrial safety and corporate accountability in the United States.