S4·E3 Underground Mega Highway
Core
Aired May 20, 2020 45 min
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Synopsis
An expert team of engineers use hi-tech explosions and state-of-the-art drilling rigs to tear through solid granite and build an 11-mile underground tunnel, one of the longest in the world.
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Frequently Asked Questions
When did Season 4 Episode 3 of Building Giants air?
Season 4, Episode 3 ('Underground Mega Highway') originally aired on May 20, 2020.
How long is Season 4 Episode 3 ('Underground Mega Highway')?
The runtime for this episode is approximately 45 minutes.
What happens in Building Giants Season 4 Episode 3?
An expert team of engineers use hi-tech explosions and state-of-the-art drilling rigs to tear through solid granite and build an 11-mile underground tunnel, one of the longest in the world....
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