Our Acton Storm Tanks site is where the super sewer begins on the western section of the Tideway project.
TBM Rachel has finished tunnelling the western 7km section of the super sewer after breaking into the shaft at Tideway’s site in Acton in September 2020. Rachel first arrived in London in November 2017 and began tunnelling in May 2019.
The team are now carrying out the secondary lining of the tunnel - this is where we add an additional layer of concrete to the inside of the tunnel. It ensures a smooth and consistent finish. Our Tunnel Vision series on YouTube provides an insight into what's happening across the project and includes an episode that provides more information on the process secondary lining. You can watch the video here.