Severn Tunnel Upgrade: Enhancing Rail in South Wales & Bristol
Network Rail’s £100 million **Severn Tunnel upgrade** is complete, ensuring more reliable service for 100 daily trains between South Wales and Bristol.

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Introduction
Network Rail has announced the completion of the Severn Tunnel upgrade, a project that involved a £100 million investment to improve the railway line connecting South Wales and Bristol, with the work carried out over the past four years.
Project Scope and Investment
The Severn Tunnel upgrade project, costing £100 million, focused on enhancing the railway line between South Wales and Bristol. The investment aimed to ensure the long-term reliability of the line, which is used by over 100 passenger and freight trains daily. The project involved a comprehensive range of improvements, including the replacement of 11 miles of track, upgrades to the drainage systems, and enhancements to the tunnel’s safety features.
Detailed Improvements
The upgrade included the replacement of 11 miles of track. Drainage systems within the tunnel were also upgraded to manage water ingress, and the tunnel’s safety features were enhanced. These improvements were designed to reduce delays and improve the overall passenger experience.
Timeline and Operational Impact
The work on the Severn Tunnel upgrade commenced four years ago, with the final stages completed recently. The project was carried out to minimise disruption to train services, with much of the work completed during overnight and weekend possessions. The upgrades are expected to provide more reliable services for the 100 passenger and freight trains that use the line daily.
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Conclusion
The Severn Tunnel upgrade has been completed after a four-year period. The £100 million investment has been used to improve the railway line that connects South Wales and Bristol. This work involved track replacement, drainage improvements, and safety enhancements to support the 100 passenger and freight trains that use the line every day.
Company Summary
Network Rail: Network Rail is the owner and infrastructure manager of most of the railway network in Great Britain.
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