OSHA Accident Investigation · Summary #606756
OXYGEN,CONSTRUCTION,MANHOLE
Event description
Employee overcome by oxygen deficiency in manhole
Investigation abstract
Employee #2 went into a 15 ft deep 4 ft diameter sewer manhole to grout around t gan. About 18 hours after the accident, the oxygen level in the manhole was .7 p ercent. he joints. The manhole was new and had not been connected to an active sewer lin e. Employee #2 worked near the top of the manhole, then came out because it was too hot. Employee #1 went to the bottom of the manhole to clean it out and was a lmost immediately in distress. Employees #3 and #2 went into the manhole to resc ue him. They tied a rope around Employee #1, pulled him out, and somehow were ab le to climb out themselves. Employee #1 spent the night in the hospital. Employe es #2 and #3 were treated and released from the hospital. The manhole had been i nstalled about 3 months earlier and was just opened a few minutes before work be
Victims (3)
-
#1 Hospitalized Age 29 M
- Nature of injury
- 2
- Part of body
- 4
- Event type
- 12
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 7
- Task assigned
- 1
-
#2 Non-hospitalized injury Age 27 M
- Nature of injury
- 2
- Part of body
- 4
- Event type
- 12
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 7
- Task assigned
- 1
-
#3 Non-hospitalized injury Age 35 M
- Nature of injury
- 2
- Part of body
- 4
- Event type
- 12
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 7
- Task assigned
- 1
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.