M4 Crash: Rush Hour Chaos and Road Closure in Berkshire (2026)

M4 Traffic Updates: A Chaotic Commute as the Motorway Closes in Berkshire After a Crash

Rush-hour commuters are facing long delays this morning as part of the M4 motorway is closed in Berkshire due to a crash.

The M4, a major motorway connecting London with south Wales, is typically used by commuters. However, a serious crash near junction 11 for Reading has led to the closure of the westbound carriageway between junction 10 - the Winnersh Interchange with the A329(M) - and junction 11 for Reading and the A33 at Three Mile Cross. This will undoubtedly be a blow for those working in Reading and Basingstoke.

The closure will cause traffic to build up, especially during peak morning hours. Commuters heading for the likes of Reading, Basingstoke, and Swindon will need to leave home with extra time today. The National Highways has asked drivers for their patience while the accident is cleared.

Here's where it gets controversial...

Some drivers may be tempted to use the A404(M) as an alternative route, but it's important to note that this is not advised. The A404(M) is not designed to handle the volume of traffic that the M4 typically carries, and using it could potentially worsen the congestion. Instead, drivers are advised to follow the diversion route onto the A329(M) and local roads in Reading, such as the B3270.

And this is the part most people miss...

While the road is closed, it's crucial to plan ahead and allow extra journey time. The National Highways website advises that further information is available from their website (www.trafficengland.com) and travel apps, or via their regional 'X' (Twitter) feed. Their 24/7 contact center team is also available to provide up-to-the-minute information on 0300 123 5000.

But here's where it gets thought-provoking...

What if the closure had occurred during peak evening hours? How would this impact the daily lives of commuters? It's important to consider the potential ripple effects of such incidents and plan accordingly. What do you think? Do you have any suggestions for improving traffic management during such incidents? Share your thoughts in the comments below!

M4 Crash: Rush Hour Chaos and Road Closure in Berkshire (2026)

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