Impossible Engineering S7E2 — World's Toughest Tunnels (London's Super Sewer)

7.8

Impossible Engineering•Season 7•Episode 2

World's Toughest Tunnels (London's Super Sewer)

7.8/10 · 14 votesJan 8, 202042 min

Ranked #3 of 9 in Season 7•+0.3 vs season avg

Discussion

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.

Previous episodeE1 · Dubai's Impossible Island (Bluewaters)Next episodeE3 · F-35 Fighter Jet (F35 Lighting II)

Seasons10

All 1 2 3 4 5 6 7 8 9 10

Season 7 Episodes16

E1 7.3

Dubai's Impossible Island (Bluewaters)

E2 7.8Now viewing

World's Toughest Tunnels (London's Super Sewer)

E3 7.2

F-35 Fighter Jet (F35 Lighting II)

E4 7.0

NYC Mega Tower (111 W. 57th Street)

E5 7.4

World's Biggest Airport (Beijing Daxing)

E6 6.5

Spy Plane Declassified (Nato AWACS)

E7 8.1

World's Highest Bridge (Beipanjiang)

E8 7.6

Conquering Avalanche Country (Whistler, Canada)

Infantry Assault

The Independent

Supertanker Europe

Beijing Daxing

111 W. 57th Street

South-North Water Diversion

E15

The Falkirk Wheel

E16

Stratolaunch

Cast2

Mike Bratton

Narrator

Daniel Dickrell

Discussion

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Episode Summary

"World's Toughest Tunnels (London's Super Sewer)" is episode 2 of Impossible Engineering season 7. It scored 7.8/10 from 14 votes, ranking #3 of 9 episodes this season (season average 7.5). It aired on January 8, 2020.

Next: E3 · F-35 Fighter Jet (F35 Lighting II)Best of Season 7