In 1978 an engineering design error was discovered in the Citicorp Tower in Manhattan. It was so serious that it threatened the tower’s integrity. This is the story of how it was found and the race against time to fix it.

Detailed article can be found at https://docs.wixstatic.com/ugd/52fa7d_7ab9ff96759b46ef800b65a4ad7282f7.pdf



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