Thames Water is investigating how the concrete ended up in the sewer. Photo: Thames Water

This ‘concreteberg’ weighing as much as a blue whale is clogging London’s sewers

  • Removal of solidified concrete mass estimated to cost hundreds of thousands of dollars, utility service Thames Water says
  • Traffic disruptions expected in area as workers chip away at blockage with jackhammer drills and high-pressure jets
Topic |   Britain

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Thames Water is investigating how the concrete ended up in the sewer. Photo: Thames Water
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