France’s Cherbourg-Mouguerre Rail Motorway Advances Towards 2027 Opening With Major Railway Upgrades

Written By: Samadrita Mukherjee

Samadrita Mukherjee

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September 13, 2026 09:04 GMT+5:30

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Cherbourg-Mouguerre rail motorway is nearing an important date in 2027 as France is improving the crucial railway infrastructure in order to improve the freight connectivity of northern France and the southwest of the country. It involves the upgrading of the electrified track through Angoulême as there will be substantial engineering works to be done in four tunnels between Poitiers and Bordeaux.

The freight rail line referred to as the Autoroute Ferroviaire Cherbourg-Mouguerre (AFCM) will increase the use of railway networks instead of road transport through connecting the Port of Cherbourg to the freight centre of Europe in Mouguerre near Bayonne. It will enhance the multimodal connections of the United Kingdom, Ireland, France, and Spain via ferry and rail transport.

Even though the electrified network is slated for 2027, freight trains have already started using the AFCM network since May 2025 through alternative routes.

What Is Changing With the Cherbourg-Mouguerre Rail Motorway?

The Cherbourg-Mouguerre Rail Motorway is being developed as one of France’s major freight rail projects aimed at improving the movement of unaccompanied trailers and reducing reliance on long-distance road transport.

The project is supported by Brittany Ferries, SNCF Réseau and French public authorities as part of efforts to modernise freight transport and encourage a shift from road to rail.

Key Facts About the AFCM Rail Freight Project

The project is expected to create a more efficient freight connection across France’s Atlantic corridor while supporting cleaner transport solutions.

Why This Matters for Travellers and Transport Networks

Although the AFCM is mainly designed for freight rather than passenger travel, large railway infrastructure improvements can influence the wider transport system.

By moving more freight onto rail, France aims to reduce pressure on road networks, improve logistics efficiency and support more sustainable mobility.

Benefits Expected From the New Rail Freight Corridor

• Reduced dependence on long-distance road freight.
• Lower congestion pressure on major highways.
• Improved freight connections between ports and inland logistics centres.
• Greater use of electrified railway infrastructure.
• Support for lower-emission transport solutions.

For travellers, more efficient freight movement can contribute to better overall transport network management by separating some freight activity from road corridors.

How Will the 2027 Main Route Improve Connectivity?

The main AFCM route will operate through the electrified railway corridor via Angoulême once infrastructure adaptations are completed.

The route requires modifications to existing railway structures because freight trains need sufficient clearance to safely transport trailers using specialised rail equipment.

Route Development Timeline

The phased approach allows freight operations to begin while major construction continues.

Which Railway Tunnels Are Being Upgraded?

The main engineering challenge involves adapting four tunnels located between Poitiers and Bordeaux.

These tunnels require reinforcement and modifications to allow the future freight route to operate efficiently.

Major Tunnel Upgrade Programme

The works form a key part of preparing the electrified AFCM route.

What Is Happening at the Angoulême Tunnel?

The Angoulême tunnel has been one of the central engineering locations for the AFCM project.

Major tunnel works were completed at the end of July, while additional upstream and downstream activities continue as part of the wider route preparation.

Angoulême Tunnel Upgrade Progress

• Main structural works completed.
• Additional works continuing around tunnel approaches.
• Improvements supporting future freight operations.
• Part of the wider Poitiers-Bordeaux infrastructure programme.

The tunnel improvements are essential for allowing the final route configuration to operate successfully.

How Is the Rail Motorway Operating Before 2027?

The AFCM has already entered service, allowing freight trains to operate before the completion of the main route.

Temporary alternative routes are being used while tunnel and infrastructure upgrades continue.

Current AFCM Operations

This gradual introduction allows operators to establish the service while infrastructure improvements are completed.

What Travellers Should Know

The Cherbourg-Mouguerre Rail Motorway is not a passenger railway service. However, travellers should understand its wider importance because freight infrastructure affects how efficiently national transport networks operate.

Before Planning Travel Around the Region

• Check official railway updates: Infrastructure works may affect regional rail operations.
• Understand the project purpose: The AFCM focuses on freight transport.
• Monitor future developments: The 2027 opening will be a major railway milestone.
• Follow SNCF Réseau announcements: Construction schedules may evolve.

The project is designed to improve freight movement rather than create a new passenger connection.

Why This Matters

The Cherbourg-Mouguerre rail motorway represents a major investment in France’s transition towards more sustainable freight transport.

The project supports a wider European trend of developing multimodal transport systems that combine shipping, rail and logistics networks.

Wider Transport Industry Impact

• Strengthens France’s Atlantic freight corridor.
• Connects ports with European logistics networks.
• Supports the movement of goods between Ireland, the UK, France and Spain.
• Encourages a shift from road transport to rail.
• Improves long-term freight efficiency.

The project also demonstrates how existing railway infrastructure can be upgraded to create additional transport capacity.

Frequently Asked Questions

What is the Cherbourg-Mouguerre Rail Motorway?

It is a French freight rail corridor connecting Cherbourg with Mouguerre near Bayonne to transport trailers by rail.

When will the main AFCM route open?

The main electrified route via Angoulême is planned to open in 2027.

Are trains already running on the route?

Yes. Freight trains have operated on the AFCM since May 2025 using alternative routes.

Which tunnels are being upgraded?

The main upgrades involve Le Livernan, Angoulême, Les Plans and Les Bâchées tunnels between Poitiers and Bordeaux.

Will passengers be able to use this rail motorway?

No. The AFCM is designed for freight transport, not passenger services.

Closing Update

Cherbourg-Mouguerre rail motorway project is at a critical point where France is planning to electrify the last rail line for completion by 2027. The project is progressively connecting French railways since it is at an advanced stage where freight trains are running and construction of tunnels is in progress.

AFCM project will be significant in improving freight network, multimodal connections, and sustainable transportation of freight between northern Europe and Iberian Peninsula.