Flood warning over 'super-sewer'


Residents of a US city with a similar "super-sewer" to the one planned for London have said several basements were flooded during downpours in 2010, despite the presence of the tunnel.

Several basements in homes in Milwaukee were damaged by sewage, they said, but officials stressed it was impossible for the sewer to back up into homes.

Thames Water said the US tunnel had achieved everything it set out to do and that it was not designed to deal with basement flooding.

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