Hoggs Hollow Disaster

The Hogg's Hollow disaster was a construction accident that occurred on March 17, 1960 in Toronto, Ontario, Canada. The incident resulted in the deaths of five Italian immigrant workers who were constructing a water main tunnel beneath the Don River in the Hogg's Hollow neighbourhood. The workers, known as "sandhogs", were trapped underground when a fire broke out in the tunnel, leading to a series of catastrophic events including flooding and cave-ins. The disaster exposed the hazardous working conditions faced by many immigrant labourers in the construction industry and became a catalyst for significant reforms in Ontario's labour laws and safety regulations.