Tideway Tunnel online and capturing 95% of storm spills into the tidal Thames

On Friday, Tideway announced the milestone that London’s super sewer is now fully connected, and preventing 95% of sewer spills into the tidal Thames.

The latest data showed 5,500,000m³ of discharges has been captured to date – the equivalent of 2,200 Olympic-sized swimming pools. Data updates will be published regularly via a new tracker at www.tideway.london.

The 25km-long super sewer connects to the 6.9km-long existing Lee Tunnel, a Thames Water asset – forming the London Tideway Tunnel system. Work on the project began in 2016, with activity taking place at two dozen construction sites from Acton in west London to Abbey Mills Pumping Station in Stratford, east London.

The project is on track to be fully complete (once testing is complete, including in storm conditions) later this year. Thames Water will then operate the system, as part of its London wastewater network.