OSHA Accident Investigation · Summary #848713
NORTHFIELD BLOCK COMPANY
MUNDELEIN, IL·
Event description
Employee dies of asphyxia in concrete hopper silo
Investigation abstract
Employee #1 entered an aggregate hopper/silo in a concrete block manufacturing f acility to free up accumulations of material clinging to its walls. Employee #1 did not know that the material had bridged over a void. Employee #1 climbed a fi xed ladder into the hopper, stepped out onto the material, and began to poke it with a rod. The material gave way under him. Employee #1 was engulfed in the mat erial, asphyxiated, and killed. Appropriate safety harnessing equipment was not available.
Victim
-
#1 Fatality Age 29 M
- Nature of injury
- 2
- Part of body
- 31
- Event type
- 12
- Source
- 43
- Occupation code
- 999
- Human factor
- 10
- Environmental factor
- 13
- Task assigned
- 2
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.