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Excavation Hazards Focus of Spring Blitz

Ontario Government Committed To Preventing Workplace Injuries

Ontario will target hazards involving large excavation operations to keep workers safe at construction sites across the province.

In May 2014, Ministry of Labour inspectors will visit construction projects with excavation activities such as trenching, foundation construction, soil stabilization, construction of footing (supports), road repair and digging out caissons (large watertight chambers).

The inspectors will check for compliance with the Occupational Health and Safety Act and its regulations. In particular, they will check on safety issues involving:

  • excavation and trenching support systems
  • utilities locations
  • measures to prevent workplace incidents

This blitz is part of the government’s continued commitment to preventing workplace injuries and illness through its Safe At Work Ontario enforcement initiative.


  • Between 2008 and 2013, 12 workers died and 33 workers were critically injured in excavation and trenching incidents at construction projects in Ontario.
  • Since 2008, ministry inspectors have conducted more than 345,000 field visits, and 62 inspection blitzes.
  • Inspectors have issued more than 560,000 compliance orders in Ontario workplaces since June 2008.


Read more about the Ontario's Safe At Work Ontario strategy to improve workplace safety.

Learn about the ministry's Construction Sector Plan 2013-2014.

Excavation Hazards Focus of Blitz
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