OSHA Accident Investigation · Summary #14198832
LARRY LOVETT
WEST OCEAN CITY, MD·
Event description
TWO EMPLOYEES INJURED WHEN WOOD TRUSSES COLLASPE
Investigation abstract
Employee #1 and Employee #2 were installing wood trusses to a wood framed buildi ed the initial truss to collapse while Employee #1 and Employee #2 were installi ng lateral bracing on the roof trusses. A domino effect with the remaining truss es occurred causing all trusses to fall, as well as portions of the building's s ide wall. Employee #1 was pinned by the trusses and suffered a cracked pelvis, i njuries to his back, and a puncture wound caused by his carpenter square. Employ ee #2 fell and suffered a broken ankle. Both employees were hospitalized for the ir injuries ng having dimensions of 216 ft by 50 ft. Each truss was 55 ft long and formed of 2-in. by 6-in. and 2-in. by 4-in. material. The trusses were installed on 24 in . centers. Over half of the trusses had been set in place with the initial truss on the south side of the building sheathed. The sheathed truss was braced by 2- in. by 4-in. lumber at four places and down to the ground level by stakes driven 8 to 10 inches deep. The soil into which these stakes were driven had been dist urbed, causing the 8 to 10 inch staked depth to be inadequate. The inadequate br acing, coupled with the force of the wind acting against the sheeted truss, caus
Victims (3)
-
#1 Hospitalized Age 19 M
- Nature of injury
- 12
- Part of body
- 3
- Event type
- 1
- Source
- 8
- Occupation code
- 567
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#2 Hospitalized Age 23 M
- Nature of injury
- 12
- Part of body
- 11
- Event type
- 1
- Source
- 8
- Occupation code
- 569
- Human factor
- 1
- Environmental factor
- 6
- Task assigned
- 1
-
#981 Degree 0 Age 0
- Nature of injury
- 0
- Part of body
- 0
- Event type
- 0
- Source
- 0
- Occupation code
- 0
- Human factor
- 0
- Environmental factor
- 0
- Task assigned
- 0
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