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Canning Town Station

The station provides a seamless connection between the Docklands Light Railway, Silverlink Metro (formerly the North London Line) and extensive bus services connecting local residential areas of east London. Access to City Airport is opened via the DLR. Shoe-horning three sets of railway lines between the River Lea, the A13 and the busy Silvertown Way, all beneath high voltage electricity cables, called for consultant Kenchington Ford - later taken over by WSP - and contractor John Mowlem to look for radical solutions.

Pushing the station into the ground and constructing a double decked incrementally launched glued segmental track and platform cantilever decks for the DLR was the cleverly designed answer.

Bachy-Cementation built a 21.5m deep diaphragm wall directly below the high voltage cables as part of the JLE concourse construction, only 2m from the DLR. Reinforcement had to be lowered in three stages and coupled as it slid into trenches.

But the contract also saw the consultant and detailing sub consultant Harris & Sutherland dragged through the courts by London Underground after a row developed over the design and over withheld fees due to WSP.

After much legal wrangling, a judge eventually threw the case out last November and awarded WSP £448,000 in fees - around half of its original claim - plus costs, and cleared H&S of a negligence charge. LUL maintains that it was a case it had to bring 'as there was a lot of public money at stake'.

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