M4 Eastbound Closed

Motorists are advised to expect delays on the M4 eastbound at junction 33 Capel Llanilltern due to congestion on the offslip, with traffic building up from 07:44 on 12 August 2026. According to the Welsh Government, the disruption is expected to last until 09:44 on the same day, causing moderate delays for drivers.

The M4 is a major motorway in the UK, connecting London to Wales, and is a key route for commuters and hauliers. The congestion on the offslip at junction 33 has resulted in traffic building up, with drivers likely to experience delays. Motorists are advised to use alternative routes and check traffic apps for updates before embarking on their journey.

The Welsh Government is responsible for maintaining the M4, and is working to clear the congestion as quickly as possible. However, drivers are urged to be patient and plan their route accordingly. The offslip at junction 33 is a critical section of the motorway, and any disruption here can have a significant impact on traffic flow.

Drivers are advised to check traffic apps, such as Waze or Google Maps, for updates on the traffic situation before setting off. These apps can provide real-time information on traffic congestion and suggest alternative routes to help drivers avoid delays. Motorists may also want to consider using the A470 or A48 as alternative routes, depending on their destination.

While the congestion is not expected to be severe, delays of up to 30 minutes are possible, and drivers are advised to factor this into their journey time. The Welsh Government is working closely with traffic management teams to clear the congestion as quickly as possible, but in the meantime, motorists are urged to exercise caution and patience.

For the latest information on traffic conditions and road closures, including the M4, motorists can visit Road Closures UK, a comprehensive online resource providing up-to-date information on road closures and traffic disruptions across the UK. By checking Road Closures UK and using traffic apps, drivers can stay informed and plan their route accordingly, reducing the risk of delays and frustration on the road.