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Safety Incidents OSHA Severe Injury Reports · 2015–2025

OSHA Accident Investigation · Summary #14253066

COLLAPSE,ABRASION,CONTUSION

Event
COLLAPSE,ABRASION,CONTUSION
Linked inspection
No inspection record linked to this accident's victims.
Summary number
14253066
Report ID
453710

Event description

EMPLOYEES INJURED WHEN ROOF TRUSSES COLLAPSE

Investigation abstract

On August 19, 1989, about 16 workers were engaged in building a roof on a shed. pitalized. They had erected 39 parallel wood trusses made of 2-in. by 4-in. lumber, spaced on about 2-ft centers, on top of 18-ft-high block walls. The trusses were 7 ft h igh at the front of the building and sloping to 2 in. at the rear. At about 4 p. m. the trusses toppled over in a domino effect. As they rotated to the side, the y flexed downward between their supported ends, broke apart, and fell to the gro und. At the time of the collapse, final adjustment of truss spacing was being do ne, and sheets of 4-ft by 8-ft by 0.4375-in. sheathing had been placed on the to p chords of the trusses being stacked and spread out. All ten employees were hos

Victims (10)

  1. #1 Hospitalized Age 16 M

    Nature of injury
    12
    Part of body
    19
    Event type
    1
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  2. #10 Hospitalized Age 19 M

    Nature of injury
    3
    Part of body
    21
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  3. #2 Hospitalized Age 16 M

    Nature of injury
    3
    Part of body
    16
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  4. #3 Hospitalized Age 31 M

    Nature of injury
    3
    Part of body
    21
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  5. #4 Hospitalized Age 38 M

    Nature of injury
    3
    Part of body
    19
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  6. #5 Hospitalized Age 27 M

    Nature of injury
    3
    Part of body
    19
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  7. #6 Hospitalized Age 26 M

    Nature of injury
    7
    Part of body
    19
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  8. #7 Hospitalized Age 27 M

    Nature of injury
    3
    Part of body
    19
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  9. #8 Hospitalized Age 28 M

    Nature of injury
    3
    Part of body
    18
    Event type
    5
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

  10. #9 Hospitalized Age 39 M

    Nature of injury
    3
    Part of body
    16
    Event type
    6
    Source
    8
    Occupation code
    567
    Human factor
    17
    Environmental factor
    6
    Task assigned
    2

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