OSHA Accident Investigation · Summary #14347363
FRACTURE,ROOF,COLLAPSE,WORK RULES,OVERLOADED,CONSTRUCTION,STRUCK BY,BRACING,CONTUSION
Event description
Five employees injured when struck by collapsing roof
Investigation abstract
Employees #1 through #5 were working on a 2-story frame office building. Employe "A." In addition to the inadequate design of the beam, several bundles of 4 by 8 ft plywood sheets weighing 3,000 lb had been lying on the wood roof for four t o seven days. Bracing/blocks were being installed on the trusses. Spreading bund les on the roof was a common construction practice. e #1 was working on a second floor wall; Employee #2 was standing on a sawhorse furring out a wall; Employees #3 and #4 were standing on the trusses over a beam ; and Employee #5 was supervising the framing. A loud crack and then shouted war nings were heard. The beam broke and the partially completed roof collapsed. Emp loyees #1, #2, #4, and #5 were bruised and Employee #3 sustained fractures; all five employees were treated at a local hospital. The roof trusses had not been a dequately braced during construction, causing the 4 by 6 treated timber roof sup port beam that was being used as the center interior bearing to fail under truss
Victims (5)
-
#1 Hospitalized Age 30 M
- Nature of injury
- 3
- Part of body
- 22
- Event type
- 1
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#2 Hospitalized Age 54 M
- Nature of injury
- 3
- Part of body
- 19
- Event type
- 1
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#3 Hospitalized Age 29 M
- Nature of injury
- 12
- Part of body
- 19
- Event type
- 1
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#4 Hospitalized Age 29 M
- Nature of injury
- 3
- Part of body
- 21
- Event type
- 1
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#5 Hospitalized Age 30 M
- Nature of injury
- 3
- Part of body
- 21
- Event type
- 1
- Source
- 8
- Occupation code
- 999
- Human factor
- 1
- Environmental factor
- 6
- 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.