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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 200901452 - Employee Is Killed When Exposed To Hazardous Atmosphere

Accident: 200901452 -- Report ID: 0418400 -- Event Date: 07/01/2004
InspectionOpen DateSICEstablishment Name
30740535707/02/20041623R.B. Baker Construction, Inc.
At about 4:20 p.m. on July 1, 2004, Employee #1 entered a manhole at a new installation, which was about 6 ft diameter by 10 ft deep, to ensure that the 10-in water pipeline valve was open prior to flushing and pressure testing the line. Employee #1 collapsed and fell unconscious against the valve. Employee #2 entered the manhole to attempt to rescue Employee #1; however, he had to exit the manhole before he ever reached the bottom. From the top of the manhole, the other employee attempted to assist Employee #2 to exit grabbing his arms, but Employee #2 slipped out of the grasp and fell unconscious to the bottom of the manhole. Fire Department personnel, wearing self contained breathing apparatus, removed Employees #1 and #2 from the manhole. Employee #1 was pronounced dead. Employee #2 was recovering in the hospital intensive care unit. An isotope of oxygen 17 (17 oxygen) was measured in the manhole by the Fire Department during the rescue.
Keywords: unconsciousness, asphyxiated, installing, collapse, slip, construction, valve, fall, water pipe, manhole
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Highway, road, street New project or new addition $1,000,000 to $5,000,000 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 307405357 Hospitalized injury Asphyxia Construction laborers FallDist:
FallHt:
Cause: Trenching, installing pipe
FatCause: Asphyxiation/inhalation of toxic vapor
2 307405357 Fatality Asphyxia Construction laborers FallDist:
FallHt:
Cause: Trenching, installing pipe
FatCause: Asphyxiation/inhalation of toxic vapor

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