History

WHY LONDON NEEDS
A SUPER SEWER?

Did you know, even a light drizzle of rain causes untreated sewage to spill into the River Thames from London's Victorian sewer network?

This adds up to tens of millions of tonnes every year.

London's Victorian sewers were designed to serve 4 million people.

Now nearly 9 million people send a stinking amount of poo through London's sewers daily.

Did you know, London's population is estimated
to increase to 16 million by 2160?

2m
person person
1860
4m
person
person person person
1920
8.8m
person
person person person
person person person person
2019
16m
person
person person person person
person person person person person
person person person person person person
2160
1860
1920
2019
2160

These sewers overflow into the River Thames when it rains.

Sewage is the last significant source of pollution in the river.

The super sewer is the solution
to tackle these problems

25km long and 7.2 metres in diameter, it will be completed in 2025.

The Thames Tideway Tunnel will protect the river for at least the next 100 years.