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New portal at Victoria Dock

Construction work is forging ahead on the new Crossrail tunnel portal at Victoria Dock.

This will create a 1,000 metre tunnelled section for the new Crossrail route in east London. The Victoria Dock Portal will allow the new Crossrail trains on the existing surface railway from the east to move underground and into Crossrail’s tunnelled section beneath central London.

Major engineering works were carried out over the Christmas period with 200 workers moving and renewing 420 metres of Docklands Light Railway (DLR) tracks to create space for the construction of the Victoria Dock Portal.

With the DLR tracks moved, work is now underway to build the foundations for the portal structure which is close to Custom House DLR station. More than 700 piles – the columns that will support the portal structures – will be driven into the ground to form the foundations for the 20 metre wide, 371 metre long and 13 metre deep portal.

Once the first section of the Victoria Dock Portal has been completed in early 2014, a single tunnel boring machine (TBM) will be launched in summer 2014 from the Limmo Peninsula site near Canning Town, tunnelling its way towards Victoria Dock Portal where it will break-through later in 2014. The TBM will then be taken back to the Limmo site so that it can create a second adjacent tunnel to Victoria Dock Portal, completing a crucial 1km section of the Crossrail route. Once the TBM has departed Victoria Dock, the construction of the remaining sections of the portal structure will continue and will be completed in 2015.

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