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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 201760592 - Employee Killed When Overcome By Gas

Accident: 201760592 -- Report ID: 0626600 -- Event Date: 07/13/1998
InspectionOpen DateSICEstablishment Name
30131275707/13/19981623William H. Gray Construction Co.,Inc.
A construction crew of four men was tying an old sewer line into the new sewer system. Employee #1 broke a plug within the new sewer line and began to climb up the ladder toward the opening of the manhole. Gas rushed from behind the plug and overcame him, causing him to fall back into the hole. The second employee saw Employee #1 fall back into the manhole. He quickly went down to rescue him. The second employee partially reached the bottom of the hole before he decided to come back up. The two remaining employees eventually went down into the hole. The second employee managed to get out of the manhole and summon help. The Fire Department Rescue Team retrieved the third and fourth employees before they became totally incapacitated. Employee #1 died of asphyxiation. The other three employees were sent to the hospital for medical treatment.
Keywords: sewer, asphyxiated, ladder, gas, fall, manhole
End Use Proj Type Proj Cost Stories NonBldgHt Fatality
Sewer/water treatment plant Other $500,000 to $1,000,000 X
Employee # Inspection Age Sex Degree Nature Occupation Construction
1 301312757 Fatality Poisoning(Systemic) Occupation not reported FallDist:
FallHt:
Cause: Installing underground plumbing conduit
FatCause: Asphyxiation/inhalation of toxic vapor

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