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Baltimore Key Bridge: How a domino effect brought it down in secondsSix people remain unaccounted for in the disaster, which saw the world's third largest continuous truss bridge fall into the Patapsco river. The cause was Singapore-flagged container ship ...
which triggered the steel arch-shape — continuous through the truss bridge — to tumble into the river. Lubman said film researchers uncovered notes indicating authorities were aware of the risk.
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