Network Rail is undertaking the mammoth task of installing 27,000 square metres of a new rock-mesh-system along a three-mile section of the Newport to Gloucester railway line, including at the location of a recent landslip.
The Severn Estuary Railway Line is particularly vulnerable to landslips due to its exposed location. In 2021, Network Rail announced the £25 million project to enhance resilience of this vital passenger and freight route with its Severn Estuary Resilience Programme.
The project began in Summer 2022 and will continue from Summer 2023. The investment will ensure this vital railway link is protected from the effects of climate change for generations to come.
Network Rail was alerted to the movement of earth by its state-of-the-art slope monitoring system, on Wednesday 4 January, following a bout of prolonged and heavy rain.
Over the next four days, rope access teams worked around the clock to descale the 100ft cliff face, near Purton, by hand and remove the large amount of soil and rock from the tracks.
The extreme rain caused a culvert to collapse and washed away four-tonnes of ballast – the stones beneath the tracks – with engineers carrying out repairs to both in the coming days. Concrete ‘legado blocks’ were also installed at the bottom of the slopes to prevent further debris from reaching the track.
Christopher Howchin, senior network delivery manager for Network Rail Wales & Borders, said: “I’d like to thank the team for their efforts to recover the line as quickly and safely as possible, especially during the latest period of industrial action, when our resources were limited.
“Landslips at this location are only going to become more frequent due to the increasing bad weather brought on by climate change, which is why we are investing millions of pounds to protect our railway from the impact. Our work on this line will reduce delays and disruption for passengers and our freight customers, ensuring this vital transport route can continue to serve communities for many years to come.”
Image credit: Network Rail