Tideway hits Greenwich milestone

Official Project Partner : Tideway

Work at the Greenwich Pumping Station, a crucial segment of the Thames Tideway project, has reached a key milestone.

Greenwich Pumping Station is one of a number of site across London that will be used for the construction of the Thames Tideway Tunnel, the 25km super sewer being constructed to tackle the problem of sewage pollution in the River Thames.

Work is being carried out at the existing operational Pumping Station site, where a connection tunnel is being constructed through to Tideway’s Chambers Wharf site. Contractors have recently begun the diaphragm walling for the tunnel, in preparation for digging the tunnel shaft.

Jim Avant, Tideway’s Delivery Manager, announced: “This has taken more than a year of planning and really hard work by the team. It’s a huge milestone for the site and we’re excited to get started on the next stage of construction.”

This point in the contract is a pivotal transition point between site set up and diaphragm walling. A diaphragm wall is a concrete structure inserted in the ground and used to maintain an excavation open, an essential part of digging a tunnel shaft.

This will not be the only milestone achieved at the Greenwich site this year, expected works include the erection of an acoustic enclosure adjacent to the DLR, where work can be completed inside to prevent noise disruption to residents and businesses. It will allow for 24-hour construction, meaning excavation for the shaft can be completed quicker.

Once completed London’s super sewer will stop the millions of tonnes of untreated sewage that flow into the Thames each year. Tunnelling is set to start later this year.

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