A 20-foot-long chunk of construction crane plummeted 30 floors at the site of a high-rise condominium as workers tried to extend the equipment's reach.
Five workers died in a fire that occurred last October at a Colorado hydroelectric plant after vapors from a flammable solvent ignited inside a tunnel.
Old photos reveal two steel connecting plates were visibly bent as early as 2003 — four years before the bridge collapsed into the Mississippi River.
Subsidiary company Andalex Resources Inc. cited for repeatedly violating the same safety standard — one designed to prevent mine fires and explosions.
Three years after deadly incident, the U.S. Chemical Safety Board has released a safety video that describes the causes of the accident and key safety lessons.
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