Winning key role on £4.2bn London super sewer

London's £4.2bn "super-sewer" has taken a leap forward with our appointment to its commercial support services framework.

We will provide commercial support services to the new £4.2bn Thames Tideway Tunnel over the next four years, including project and programme management resources. We were selected as one of three consultants on the framework.

Peter Depledge, Director of infrastructure said: "We're delighted to be playing a role in ensuring the timely delivery of such a huge and important project which will deliver a positive outcome for Londoners for generations ahead."

Mark Sneesby, chief operating officer at Thames Tideway said: "As we start main construction work on the Thames Tideway Tunnel, we are confident that having the knowledge and expertise of three of the most prominent consultancies will be a huge asset in our work to clean up London's river."


The Thames Tideway Tunnel is a 25km sewer tunnel designed to reduce the millions of tonnes of raw sewage that overflow into the River Thames each year.

It is the second largest infrastructure project in the capital, after Crossrail, and the biggest investment in London’s sewers since Sir Joseph Bazalgette built the network in 1858.

For further information, contact:

Charlotte Storer
Regional Marketing Manager

t: +44 (0)207 544 4000