Charlotte makes breakthrough for London's super sewer

News

Engineers building a 25km super sewer in London have reached a significant milestone after one of the project’s giant tunnelling machines broke through the ground to complete a section of tunnel.

 

Named after suffragist Charlotte Despard, the tunnel boring machine (TBM) is excavating the Frogmore Connection Tunnel from Wandsworth to Fulham as part of the Thames Tideway Tunnel project to protect the River Thames from sewage pollution.

The 1.1km tunnel will take sewage overflows from King George’s Park into the main 25km super sewer at Fulham, where it will be transferred to east London for treatment.

The 500m southern section of the Frogmore Connection Tunnel, from Dormay Street to King George’s Park, is now complete. Charlotte will now be lifted from the shaft, taken back to Dormay Street and placed back into the ground to tunnel 600m north to Fulham.

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The west section of the project is being delivered by a consortium of BAM Nuttall, Morgan Sindall and Balfour Beatty. In a statement, Sally Cox, project director for the west section, said: “This breakthrough, the first on the Tideway project, marks another key step toward a cleaner, healthier River Thames.

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