London's new "super sewer" - or the Thames Tideway Tunnel, as it is officially known - will begin testing in the summer, the company behind it has said.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://www.bbc.com/news/articles/ck79z17pvvyo
London 'super sewer': New Thames Tideway Tunnel to begin tests in summer
www.bbc.comThe new "super sewer" aims to stop sewage flowing into the River Thames but adds £25 a year to bills.