OSHA Accident Investigation · Summary #14530075
OXYGEN DEFICIENCY,SEWER,VENTILATION,CONFINED SPACE,WORK RULES,CONSTRUCTION,MANHOLE
Event description
CONSTRUCTION WORKER KILLED IN OXYGEN DEFICIENT MANHOLE
Investigation abstract
EMPLOYEE #1 WAS A SUBCONTRACTOR ON A SEWER CONSTRUCTION JOB IN LONDONDERRY, NEW LATION OF THE SEWER MANHOLE PRIOR TO EMPLOYEE #1 ENTERING IT. THIS CONSTRUCTION WAS NEW. NO SEWAGE WAS IN THE MANHOLE. HAMPSHIRE. HIS JOB WAS TO INSTALL BRICK BOTTOMS (INVERTS) IN SEWER MANHOLES. HE HAD COMPLETED WORK IN 16 MANHOLES. SEWER LINES INTO AND OUT OF THE SEWER WERE PL UGGED. EMPLOYEE #1 CLIMBED INTO THE 17TH MANHOLE AND WAS FOUND WITHIN 15 MINUTES BY ANOTHER EMPLOYEE, LYING ON HIS BACK IN THE MUD AT THE SEWER BOTTOM. HE WAS D EAD. NO CONFINED SPACE ENTRY PROCEDURES WERE USED. RESCUE WAS PERFORMED BY THE F IRE DEPARTMENT. THE NEXT DAY THE STATE POLICE MEASURED 4% OXYGEN AND 20% LEL IN THE MANHOLE. THE FOLLOWING DAY OSHA MEASURED 9% OXYGEN AND 14-16% LEL IN THE MAN HOLE. THE MANHOLE WAS 12-13 FEET IN DEPTH. THERE WAS NO AIR TESTING AND NO VENTI
Victim
-
#1 Fatality Age 26 M
- Nature of injury
- 2
- Part of body
- 4
- Event type
- 8
- Source
- 19
- Occupation code
- 999
- Human factor
- 16
- Environmental factor
- 7
- Hazardous substance
- X100
- 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.