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.
Ronan Summers, Jason Dietz
Stream Engineering Catastrophes Season 03 Episode 08 in stunning HD on 123Movies, completely free. No account, no downloads — just instant access with English subtitles.