Impossible Engineering Season 7 Episode 2 World's Toughest Tunnels (London's Super Sewer) ( Air Date 2020-01-08 ) Genre Documentary category. Overview "A team of engineers are overhauling London's underground infrastructure to build a world-class sewer system. Using cutting-edge tech and the latest construction methods, they work to transform a centuries-old network into a modern-day masterpiece.".
Impossible Engineering Season 7 Episode 2 World's Toughest Tunnels (London's Super Sewer)
7.1/10 by 17 users
- Watch: Impossible Engineering Season 7 Episode 2 World's Toughest Tunnels (London's Super Sewer) on CWR-CRB
- Stars: Mike Bratton, Susie Sheehy
- Director:
