We’ve listened to what you want – less river pollution, less blockages and bursts, and more ways to enjoy the river Thames in all its glorious diversity. The Thames Tideway Tunnel project is building a 25km Super Sewer under the Thames to intercept nasty spills and clean up our river for the good of London, its wildlife and you. It will be operational in 2025 and will reduce sewage river pollution in the tidal Thames by 95%. https://www.thameswater.co.uk/about-us/investing-in-our-region/thames-t