Has London’s £5bn ‘super sewer’ improved water quality in the Thames? | FT #shorts

Summary

London’s £5bn, 25km Tideway Tunnel or ‘super sewer’ was built on time and on budget. But since becoming fully operational in February 2025 and despite a reduction in spills, there’s no clear evidence of significant overall improvement in the river’s water quality. ► Enjoying FT content? Get a daily slice of the very best FT journalism with FT Edit. Free for 30 days then just £4.99 a month See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132. ► Check out our Community tab…

Description from Financial Times.