UK Road Closed: National Highways

A section of the M4 motorway, near Slough, will be closed overnight due to essential maintenance work. The closure is scheduled to take place on 07 August 2026, from 22:00 to 05:00 on 08 August 2026, and will affect traffic traveling between London and the West Country.

The affected stretch of the M4 motorway is located at junction 7, which is part of the National Highways Strategic Road Network. National Highways, the organisation responsible for maintaining and improving England's motorways and major A roads, has implemented the closure to facilitate the necessary work. The closure will cause significant disruption to drivers, particularly during rush hour and early morning hours.

Drivers are advised to plan their journeys in advance and consider using alternative routes to avoid the affected section of road. Those who must travel through the area are encouraged to check traffic apps and websites for up-to-date information on the closure and any resulting congestion. Motorists should also be aware that traffic management measures, such as lane closures and contraflows, may be in place to facilitate the work.

The M4 is a critical artery of the UK's road network, connecting London with the West Country and other key destinations. The closure is expected to cause significant delays, particularly for those traveling during peak hours. Motorists are advised to allow plenty of time for their journeys and to consider alternative modes of transport, such as public transport or cycling.

National Highways has implemented the closure to ensure the safe and efficient delivery of the maintenance work. The organisation is working closely with local authorities and emergency services to minimise the disruption caused by the closure. Motorists are urged to follow the recommended diversion routes and to be patient when traveling through the affected area.

The closure is scheduled to take place during the overnight hours to minimise the impact on traffic flow. However, drivers should still expect delays and disruptions, particularly during the early morning hours when traffic volumes are typically higher. Motorists are advised to check the National Highways website and traffic apps for updates on the closure and any resulting congestion.

For the latest information on road closures and traffic updates, please visit Road Closures UK. National Highways provides regular updates on its website and social media channels, and motorists are encouraged to check these for the latest information on the M4 closure and other roadworks affecting the UK's road network.