A major £33m land reinforcement project at Browney Curve on the East Coast Main Line has been successfully completed, securing this vital transport link for generations to come while achieving significant carbon savings through innovative engineering approaches.
The project, which began in September 2023, has successfully stabilised a section of railway line that runs alongside the River Browney in County Durham.
When the curve was first constructed nearly two centuries ago, engineers identified significant ground stability challenges – a persistent problem that this project has now finally resolved through modern engineering solutions, fittingly coming as the railway celebrates its 200th anniversary year.
Engineers installed more than 500 piles across 400 metres of land to prevent potential landslips, completing the work without any disruption to passenger services.
Several innovative approaches were implemented to reduce the environmental impact of the engineering work, including by saving:
- Nearly 9,000 tonnes of CO2 by using non-prime second-hand steel stock
- Over 600 tonnes of CO2 by sourcing materials from local suppliers, which also invested in the County Durham economy
- A further 600 tonnes of CO2 through technical innovations in the pile design
The land at Browney Curve has been actively monitored for years after being identified as an area prone to landslips. Rather than waiting for the land to disrupt services, engineers took decisive proactive action to secure the infrastructure.
Tom Grainger, lead portfolio manager for Network Rail, said: "This has been one of the largest geotechnical projects in the country, combining modern sustainable engineering solutions with our rich railway heritage. The East Coast Main Line has been serving communities for almost 200 years, and this work ensures it will continue to do so reliably and safely."
"What makes this project particularly special is how we've used cutting-edge technology to solve a centuries-old challenge of managing land stability around railway infrastructure, while significantly reducing our carbon footprint."
Later this year, additional environmental work will be undertaken with tree planting along the river to provide natural protection against future erosion.
Image credit: Network Rail
