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.

Sign up for our news alerts today!

Our editors' picks for the day's top news delivered to your inbox or phone.

Sign up for email alerts Sign up for mobile alerts
1
2 3 4 5 6
7

Latest London transportation news

Tuesday, June 2, 2015
Commuters can expect severe delays

The Circle Line is experiencing sever delays this morning due to an earlier signal failure.

Monday, June 1, 2015
Two new train strikes are planned for June 4 and June 9  (Photo by Cate Gillon/Getty Images)

Planned rail strikes have been suspended after talks over a pay deal, the arbitration service Acas has said.

Monday, June 1, 2015
Southern trains to Victoria from Brighton are delayed at present [Photo by Dan Kitwood/Getty Images]

Two people have been killed on train lines to London today in two separate incidents.

Monday, June 1, 2015
[Photo: Metropolitan Police]

Campaign group Stop Killing Cyclists will be holding a vigil in Southwark in remembrance of Esther Hartsilver, the sixth cyclist to die on London’s roads this year.

Friday, May 29, 2015
[Photograph by Louise Holly]

All trains via Tulse Hill have been cancelled due to a bridge strike, affecting journeys to London Bridge, West Croydon, Peckham Rye, Herne Hill, Streatham and Crystal Palace.

Friday, May 29, 2015
The cyclist was hit by a lorry in Denmark Hill

A female cyclist has died after being struck by a lorry on Denmark Hill, south London.

What is this?

Near You Now

Don't Miss...

Competitions

Time to expand with the LeefiBRIDGE.

More iOS memory in a flash: Introducing Leef iBRIDGE.

Read more
The sell out 2014 event 32 Londoners, returns to the Coca-Cola London Eye!

The Coca-Cola London Eye is proud to announce that 32 Londoners will be returning this June, following last year’s sell out event. The event will feature 32 talks, in each of the London Eye’s 32 capsules on 32 extraordinary Londoners.

Read more
You could take in stunning views of London over brunch at the Sky Garden

Celebrate lighter, brighter days with the chance of winning an indulgent brunch for two with a bottle of bubbles at Darwin, the cool and casual brasserie 36 floors up at Sky Garden.

Read more

London Bloggers

Monday, April 13, 2015
Vintage fashion shopping is a joy in London (Photo by Graham French/BIPs/Getty Images)

In with the old, out with the new. This is the mantra of the best London vintage shoppers today, whose aesthetic of effortless chic is becoming more sought after.

Wednesday, April 8, 2015
Eating the right foods can significantly improve your mood

Think sweet treats make you feel better? ‘Comfort foods’ could be adding to your misery.