Let’s dive into the engineering and construction of the Channel Tunnel on its 30th anniversary.
Practical Engineering – https://www.youtube.com/watch?v=KclYKAnaJ_k
It is a challenging endeavor to put any tunnel below the sea, and this monumental project faced some monumental hurdles. From complex cretaceous geology, to managing air pressure, water pressure, and even financial pressure, there are so many technical details I think are so interesting about this project.