Ofwat is consulting on its proposal to set a separate price control for the upcoming AMP8 investment period 2025 – 2030 for the work Thames Water carries out on the Thames Tideway Tunnel project.

Secondary lining on the final, easternmost section of London’s super sewer has now passed the 50% mark.

Bazalgette Tunnel Ltd (BTL), the Infrastructure Provider set up to finance, build, maintain and operate the Thames Tideway Tunnel, has formally notified Ofwat that it is in breach of its Project Licence - largely due to reasons outside its control.

A new report from the Institution of Civil Engineers shows how infrastructure projects, programmes, and supply chain businesses are using systems thinking to deliver better outcomes - with Tideway and Anglian Water Strategic Pipeline Alliance cited as exemplar projects.

Ofwat has agreed to adjust the licence of Thames Tideway Tunnel, to ensure that the project can be completed after it was severely impacted by the Covid-19 pandemic and historically low interest rates.

Tideway, the company building London’s new super sewer, has announced funding of the project to completion in 2025, with the agreement of another £300 million in Green Bonds. 

The 1000th ring has been installed on the Greenwich Connection Tunnel – part of the new super sewer for London - by Tideway’s Tunnel Boring Machine (TBM) Annie.

This week a giant tunnel has been dug under the final bridge in London before completion of the 25km super sewer for the capital.

Covid19 restrictions have added a further £233 million to previous cost estimates for the Thames Tideway supersewer project, putting the overall cost of the project at £4.133 billion, while completion has been delayed by 9 months.

The final cost of London’s supersewer could be as much as £900 million above the original regulatory baseline of £3.4 billion, rising to £4.3 billion by completion in 2024 in the worst case scenario, according to the 2019-20 Annual Report published by Tideway, the company building the supersewer for Thames Water.