Incident date: 2025-08-29
NAICS industry code: 236220

Employees were installing wood roof trusses, setting them on concrete masonry unit walls that were capped with new double 2-by-6 top plate. The trusses collapsed in a chain reaction, causing three employees to fall to the slab below. One of them, who had fallen about 20 feet to the concrete, suffered two collapsed lungs, several broken ribs, and a broken pelvis. The employee was hospitalized.

Hazard classification:
code_event: title: Fall to lower level from collapsing structure or equipment  6 to 30 feet
code_source: title: Trusses, girders, beams structurally attached
code_nature: title: Multiple severe wounds and internal injuries
code_body: title: Multiple trunk locations
severity: moderate