Crossrail work at Connaught Tunnel gathers pace

16:00 28 April 2012

The existing Connaught Tunnel, which is currently being rebuilt for Crossrail

The existing Connaught Tunnel, which is currently being rebuilt for Crossrail

Archant

Work to prepare the Connaught Tunnel for the Crossrail era is now well under way.

Engineers started to dig wells last week in a bid to lower water levels, allowing them to the deepen and widen the 130-year-old Royal Docks structure.

This will allow it to accommodate Crossrail’s larger trains, when the scheme launches in 2018.

By the time they have finished, the structure’s pump house shaft will have been deepened to hold modern equipment that will work to keep the tunnel dry.

Over the next month, Head House, a Victorian building on the site, will be removed brick by brick and donated to Newham Council.

Crossrail said it is too small to hold the modern pumping equipment that will be installed as part of the tunnel’s major refurbishment.

Project manager Linda Miller said: “Works are progressing extremely well and we are on track for turning this Victorian railway tunnel into modern infrastructure that will service London well into the next century.

“Major works will begin early next year after the London Boat Show, which will include placing coffer dams in the passage between Royal Victoria and Royal Albert docks, pumping out the water and performing open heart surgery to widen and deepen the central section of the tunnel.”

The Connaught Tunnel was built in 1878 and was part of the North London Line until 2006.

In 1935, larger ships scraped the bottom of the Royal Victoria Dock - which sits above the tunnel - causing structural problems.

As part of previous work to deepen the dock, the central section of the tunnel was narrowed with brickwork removed and steel segments installed.

Crossrail originally planned to strengthen the section by removing the existing steel linings and filling the section with concrete foam.

But concerns over its structural condition led the Crossrail engineering team to opt to dig down into the tunnel to carry out the enlargement work.

This will be the first time the tunnel has been exposed from above ground since its construction in the 1870s.

Latest Stories from SNAP.PA

Because she is just as cute as a real cat.

Read more

One pilot is dead and another seriously injured after the craft exploded over the Mojave desert.

Read more

Promotions

BT Home Smart Cam

When I was first told by my boss that I would be doing a review on the BT Smart Cam 100 I didn’t quite know what to expect. Before even looking at the product I was picturing it as nothing more than a web cam with a fancy name.

AGA Living Subscription

Every issue of AGA Living magazine is packed full of celebrity AGA owner interviews, interior and design features, ideas to inspire your culinary imagination, mouth-watering recipes and inspirational shopping ideas.

“Space is hard and today was a tough day.”

One pilot is dead and another seriously injured after the craft exploded over the Mojave desert.

One pilot has died and another is seriously injured after a rocket belonging to billionaire Sir Richard Branson’s space tourism venture crashed during a test flight. Virgin Galactic’s SpaceShipTwo rocket came down in the Mojave Desert in California. An eyewitness reported that the craft exploded in flight after ignition. A Virgin Galactic spokesman said the […]

TOP Stories

Yesterday, 17:02
Police attend the scene where a teenager was stabbed to death, outside a convenience store in Pilgrimage Street [Photograph by Alex Diaz/PA Wire

A teenager has been stabbed to death on Pilgrimage Street near Tabard Gardens this afternoon.

Yesterday, 15:27
Police are looking for these two men after a sex worker was attacked with noxious gas in Soho (Picture: Metropolitan Police)

Police have released images of two men they want to speak to after a sex worker and her friend were ‘sprayed with a noxious gas’ and then robbed at an address in Soho.

Yesterday, 12:54
The man was fatally stabbed at Middlesex University in north London (Picture: Google Streetview)

A murder investigation has been launched after a man was fatally stabbed at Middlesex University campus in the early hours of this morning.

London Bloggers

Thu, 10:07
The Appilepsy team: Phil Efstathiou, Alex Telek , Clarence Ji, Miklos Molnar, Joran van Apeldoorn

In Tech City, things move fast. And sometimes erratically. Like phones in the pockets of people having epileptic seizures.

Friday, October 24, 2014
The 91-year-old gave the cyclist a wallop

After Baroness Sharples bragged about walloping a cyclist, London24’s cycling blogger AViewOfLondon has this to say...

Wednesday, September 17, 2014
The cast, including Josie Lawrence and Mike Myers

Simon Collins catches up with the improv impresarios, who despite being the world’s longest-running comedy show with the same cast, have lost none of the razor-sharp wit: