London super-sewer is waste of £4bn, says assessor

Seven-year project to stop wastewater flowing into Thames is unnecessary and ministers should have considered alternatives, says Chris Binney

The original assessor who backed plans for a multibillion-pound super-sewer beneath the river Thames has said his decision was based on incorrect information, as crews begin work on the project.
Chris Binney, the chairman of the 2005 steering group that recommended the Thames Tideway tunnel as the solution to London's wastewater problems, has questioned whether it was worth the 4.2bn estimated cost.