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Super sewer report to be published in the autumn

Thames Tideway Tunnel

The government’s spending watchdog is finalising a report into the development of the Thames Tideway Tunnel.

The National Audit Office (NAO) investigation is examining how project’s public sector steering group took the final decision to go for this tunnel design over alternative options, including looking at the assurances it received over the project. It is also looking at any risks to both taxpayers and Thames Water customers in the final stages of the project and how these potential risks will be mitigated. A spokeswoman for the NAO said the investigation is not looking at the funding for the project.

The investigation is currently ongoing and will be published in the next few weeks.

A spokesperson for Tideway said: ”The Thames Tideway Tunnel is essential for London, cleaning up the river and upgrading London’s sewerage system to cope with the demands of the city well into the 22nd century. We are delivering this vital project in the most timely and cost-efficient way.

“We are confident in our progress to date and will continue to get on with providing London with this much-needed piece of infrastructure.”

Back in 2014 the NAO carried out an initial investigation into the project with a report which undertook an early review of the risks to its value for money.

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