M4 road closure near Tredegar โ€” M4 Tredegar: Eastbound closed due congestion
M4TredegarPublished 16 August 2026Road Closures UK

M4 Tredegar: Eastbound closed due congestion

Motorists on the M4 Eastbound are facing moderate congestion between junctions 28 and 26, near the town of Tredegar in south Wales.

Motorists on the M4 Eastbound are facing moderate congestion between junctions 28 and 26, near the town of Tredegar in south Wales. The disruption is set to last from 12:35 on 16 August 2026 to 13:35 on the same day. Drivers can expect delays and should consider using alternative routes to reach their destinations on time.

The congestion has been reported on the eastbound carriageway, which is managed by the Welsh Government. The cause of the congestion is currently unclear. However, the Welsh Government has issued an alert to inform drivers of the expected delays. This information will be regularly updated to ensure motorists stay informed.

Motorists are advised to check traffic apps and websites for the latest updates on traffic conditions before embarking on their journeys. The Welsh Government recommends using alternative routes to avoid the congested area. Drivers should also consider checking for real-time traffic information, which can be found on the Welsh Government's website or through mobile apps.

The Welsh Government is responsible for managing the M4 motorway in Wales. While the cause of the congestion is currently unknown, the authority is working to clear the road as quickly as possible. Motorists are urged to exercise caution and patience while driving through the affected area.

For those unfamiliar with the area, Tredegar is a town located in the county borough of Caerphilly in south Wales. The town is situated near the M4 motorway, which connects England and Wales. Junction 28 of the M4 marks the entry point to Tredegar, while junction 26 marks the exit point to the nearby town of Pontypool.

Motorists who are planning to travel on the M4 Eastbound between junctions 28 and 26 are advised to check the latest traffic information before embarking on their journey. With the expected end time of the congestion being 13:35 on 16 August 2026, drivers should plan their journeys accordingly to avoid any potential delays. For the latest information on traffic conditions and road closures, please visit Road Closures UK for regular updates.

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Published by Road Closures UK. Contains public sector information licensed under the Open Government Licence v3.0.

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