Multi-million-pound investment to prevent landslips on Chiltern main line: Harbury embankment aerial view 16x9

Friday 29 May 2020

Multi-million-pound investment to prevent landslips on Chiltern main line

Region & Route:
North West & Central
| North West & Central: West Coast Mainline South

Major work to secure a railway embankment in Warwickshire will mean more reliable journeys for passengers on the Chiltern main line.

Since December 2019, a £9m investment by Network Rail has seen engineers working to stabilise the slope on the south side of Harbury tunnel between Leamington Spa and Banbury.

Historically the area has been beset by earth movement, most recently in early 2015 when a 300,000-tonne landslip on the other side of the tunnel closed the Chiltern main line for six weeks.

Joel Farrell, scheme project manager at Network Rail, said: “This significant investment to secure this part of the Chiltern main line will ensure reliable journeys for passengers between Birmingham and London for many decades to come.

“The ground here, made up of layers of limestone and shale, can be unstable and could potentially cause issues for the railway running through it. This preventative work will stop any future slips and make it much more secure.

“We know Harbury very well after the huge landslip in 2015 and I want to thank the local community for their patience while we complete this vital work.”

The geological makeup of the earth at Harbury means landslips and subsidence have caused issues for the railway since its completion in 1852. 

The first attempt to make the slopes of the cutting at Harbury shallower to prevent landslips was undertaken by Victorian engineers of Great Western Railway in 1884.

Now, 136 years later, this work continues as the Victorian’s modern-day counterparts continue to stabilise the embankment making it less steep and pinning it with large nails and piles to make it more stable. A new retaining wall will also be built at the bottom of the slope to prevent soil movement.

The embankment strengthening began in December 2019 and is expected to finish in 2021.

The project has been carried out during the daytime while passenger and freight trains continued to run below, meaning no disruption to services and no noisy overnight work.

Passengers should continue following government guidelines and avoid train travel unless absolutely essential.

People making essential journeys should visit www.nationalrail.co.uk for the latest information.

Contact information

Passengers / community members
Network Rail national helpline
03457 11 41 41

Latest travel advice
Please visit National Rail Enquiries

Journalists
Network Rail press office - North West & Central Region
07740 782954
NWCmediarelations@networkrail.co.uk

About Network Rail

We own, operate and develop Britain's railway infrastructure; that's 20,000 miles of track, 30,000 bridges, tunnels and viaducts and the thousands of signals, level crossings and stations. We run 20 of the UK's largest stations while all the others, over 2,500, are run by the country's train operating companies.

Usually, there are almost five million journeys made in the UK and over 600 freight trains run on the network. People depend on Britain's railway for their daily commute, to visit friends and loved ones and to get them home safe every day. Our role is to deliver a safe and reliable railway, so we carefully manage and deliver thousands of projects every year that form part of the multi-billion pound Railway Upgrade Plan, to grow and expand the nation's railway network to respond to the tremendous growth and demand the railway has experienced - a doubling of passenger journeys over the past 20 years.

Follow us on Twitter: @networkrail
Visit our online newsroom: www.networkrailmediacentre.co.uk