Struck by hazard is the risk of injury from being hit by a moving object, vehicle, or falling material.
One of the "Fatal Four" hazard categories in construction, referring to injuries caused by forcible contact with a moving or falling object, including vehicles, equipment, tools, or materials.
A worker on a construction site is required to stay clear of a designated swing radius while a crane is lifting steel beams overhead, reducing the risk of being struck by a falling load.
Common sources include falling tools or materials, swinging crane loads, vehicles and mobile equipment, and flying debris from cutting or grinding operations.
Prevention measures include barricading danger zones, using proper rigging and load securing, wearing high-visibility clothing around vehicles, and maintaining safe distances from operating equipment.
OSHA identifies struck-by incidents, along with falls, electrocutions, and caught-in/between hazards, as the four leading causes of construction worker fatalities, accounting for a large share of industry deaths.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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