HISTORY This Week cover image

How To Dig a Train Tunnel Under the Hudson River

HISTORY This Week

00:00

How They Built Underwater: Compressed Air and Sandhogs

Polly Desjarlais explains compressed-air construction, airlocks, and the harsh conditions sandhogs endured under the Hudson.

Play episode from 26:56
Transcript

The AI-powered Podcast Player

Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!
App store bannerPlay store banner
Get the app