Boston's Big Dig

Extreme Engineering: "Boston's Big Dig"

Season 1 · Episode 9

Extreme Engineering Season 1 Episode 9

Extreme Engineering: "Boston's Big Dig" Season 1 · Episode 9

Boston's new transport system, which features a multi-lane underground highway and the world's widest cable-stayed bridge

Quality: HD

Release: 28 May 2003

Views: 23

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