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Tideway is upgrading London’s sewer system to cope with its growing population.

Our 25km tunnel will intercept, store and ultimately transfer sewage waste away from the River Thames.

What happen’s London’s sewers when it rains?

Super Sewer updates

More by river
Every Boat Counts

More by river

Find out about Tideway’s extensive use of the river to transport construction materials.

Volunteering
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Our Community

Volunteering with you