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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 202464814 - Employee Asphyxiated When Trench Caves-In

Accident: 202464814 -- Report ID: 0950643 -- Event Date: 03/19/2007
InspectionOpen DateSICEstablishment Name
31019640703/19/20071794Sub-Zero Excavating Inc.

On March 19, 2007, Employee #1 was working as a helper inside an excavation for a sewer line on a new residential construction project. He was told by the foreman/backhoe operator to clear some dirt inside the trench. As he reached for a shovel on the opposite side of the trench, the soil/spoil collapsed on him. He was asphyxiated. The trench was about 2 feet wide, with an estimated depth of 4 feet to 5 feet or slightly more (depth was difficult to measure because the spoil/soil was partially covering the trench area). The trench had no shoring and the soil showed characteristics of sloping downward in an angular array. The only witness was the foreman. The backhoe was about 5 feet away from where Employee #1 was standing.

Keywords: chest, asphyxiated, installing, construction, trench, shoring, cave-in, backhoe
Accident Details
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Single family or duplex dwelling New project or new addition $500,000 to $1,000,000 1 X

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 310196407 Fatality Asphyxia Construction laborers FallDist:
Cause: Trenching, installing pipe
FatCause: Trench collapse

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