Contact: John Blair
john.blair@nist.gov
301-975-4261
National Institute of Standards and Technology (NIST)

Construction Strategies to Avoid Progressive Collapse

Caption: The Skyline Plaza Apartments in Fairfax County, Va after a 1973 progressive collapse that occured during construction of the 24th floor. The collapse involved the full height of the tower, and falling debris also caused the horizontal progressive collapse of an entire parking garage under construction adjacent to the tower. Fourteen workers were killed, 34 workers were injured.

Credit: Hai S. Lew/NIST

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