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London 'super sewer' would be as big as Channel Tunnel

Thames Water is planning a massive "super sewer" to replace London's Victorian system, which is struggling to cope as the city grows.

The £3.6bn 20-mile tunnel could be as large as the Channel Tunnel, and would reduce the amount of sewage polluting the Thames.

BBC Breakfast's Richard Westcott reports.

  • 11 Feb 2011