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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 601690 - Employees Injured In Roof Slab Collapse

Accident: 601690 -- Report ID: 0420600 -- Event Date: 09/28/1988
InspectionOpen DateSICEstablishment Name
1808352709/28/19881542Dura-Stress, Inc.

Employees #1, #2, and #3 were standing on top of three 71 foot pre-stressed concrete double T roof slabs that had been installed over an auditorium area. As they were preparing to weld the fourth 71 foot to the first three, the L-shaped ledger beam on top of the columns at the south end rolled inward, due to off center loading. The original three double Ts fell 24 feet to ground level. All three employees rode the slab down. Employee #1 suffered lacerations of the knee and cartilage. Employee #2 suffered a puncture wound in the back from rebar. Employee #3 suffered severe lacerations of the arm. The installation of the fourth double T did not cause the first three to fall, as it rested on different ledgers and columns.

Keywords: knee, roof collapse, installing, construction, back, laceration, fall, arm, puncture, unstable load

Employee Details
Employee # Inspection Age Sex Degree Nature Occupation
1 18083527 Hospitalized injury Cut/Laceration Occupation not reported
2 18083527 Hospitalized injury Puncture Occupation not reported
3 18083527 Hospitalized injury Cut/Laceration Occupation not reported

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