Boston's Big Dig was one of the most ambitious engineering projects in history, but in 2006, a fatal collapse in one of its tunnels put the ambitious project in doubt; experts reveal what caused this engineering disaster and how it was fixed. |
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Title: | Boston's Big Dig Disaster | |
Air Date: | November 20, 2019 | |
Runtime: | 60 min | |
grasshopper rex : Supposed to be sometime this fall.