The West Coast Main Line has been the lifeblood of the British economy since around 1860. The M6 motorway has been a strategic artery of trade and prosperity since it opened a century later. They come together at a place called Clifton in Cumbria, in North West England. Replacing the bridge between them is about to be a major national heartstopper.
Network Rail and their road counterparts National Highways have jumpstarted a year of preparation for a bridge replacement project in the northwest of England. The long lead time is down to the potential for huge disruption to national trade routes by both rail and road. The bridge at Clifton, a hamlet in Cumbria, needs replacement and work is scheduled for January 2026. Strat making alternative route plans now, say the agencies.
Major investment, major upheaval
It shares its name with the celebrated suspension bridge. It is however a relatively utilitarian structure, typical of hundreds like it. However, by this time next year, the bridge that carries the railway over the motorway at Clifton in Cumbria will be every bit as famous as its illustrious counterpart in Bristol. Ironically, more people have seen the Clifton Bridge than have seen the Suspension Bridge.
Truck drivers use it as a waypoint. Train drivers know it as a lonely point on Europe’s busiest mixed-traffic route. Now, a £60m (€70.2m) investment is planned for the West Coast Main Line motorway bridge replacement project at the village of Clifton in Cumbria. The population of 720 will be seeing more heavy metal in their village than a rock festival. National Highways is already working on behalf of Network Rail to build an access road to the work site.
Single train working reduces line capacity
The 60-year-old, 135-metre-long structure, takes trains over the M6 between the North of England and Scotland. It is with military precision that Network Rail and the Highways Agency are planning for the replacement of Clifton Bridge, just south of Penrith. The actual operation will take place in January 2026, but engineers are starting preparations on site one year in advance.
Currently, only one train at a time is allowed on the bridge, which causes delays for passengers and freight services. Renewal will eliminate that restriction and increase capacity on the northern part of the West Coast Main Line that runs between London and Scotland. The crossing, at an acute skew, is familiar to many of the one hundred million annual users of the M6 motorway.
Two weekends of closures
Rail and road agencies have warned that there will be closures to both transport arteries in January 2026. Regular users of the motorway, particularly freight drivers, will have to factor in lane closures and speed restrictions beginning this month. The project has echoes of the Castleton Bridge replacement in Manchester, which required the closure of the M62 cross-Pennine motorway.
Steve Mason, National Highways’ programme delivery manager, recognised the importance of replacing the bridge. “This is an essential Network Rail project to secure the future of one of the most important railway lines in the country,” he said. “We’ll be working closely with Network Rail throughout to keep motorway users and local people up to date with developments – especially as we approach the two weekend closures of the motorway at the beginning of next year.”