M4 Eastbound Closed

Motorists are facing moderate congestion on the eastbound M4 between Junction 24 Coldra and Junction 23A Magor, according to the latest reports. The Welsh Government has confirmed the disruption, which began at 1:11pm on 15 August 2026, and is expected to clear by 2:11pm on the same day. Drivers using this stretch of the M4 should expect delays and are advised to check traffic updates and utilise alternative routes to avoid the congested area.

This stretch of the M4 is a busy commuter route for thousands of people travelling between cities in South Wales, with Junction 24 Coldra serving the nearby town of Newport and Junction 23A Magor connecting to the surrounding countryside. Motorists are urged to exercise caution while driving and consider checking traffic apps such as Waze or Google Maps for real-time updates, which can help identify the most efficient routes.

The Welsh Government is responsible for maintaining and managing the M4, including responding to incidents such as this congestion. While the cause of the congestion has not been specified, it is understood that traffic volumes and roadworks may be contributing factors. Motorists are advised to monitor traffic conditions and adjust their journey plans accordingly, potentially avoiding the affected area or planning for additional travel time.

Those planning to use the M4 eastbound between Junction 24 Coldra and Junction 23A Magor should be aware of the potential for delays and consider leaving extra time for their journeys. This disruption is expected to have a moderate impact on traffic, with drivers likely to experience slow-moving traffic and potential tailbacks.

For the latest information on this incident and other road closures in the UK, visit the Road Closures UK website. This online resource provides up-to-date information on traffic disruptions, roadworks, and other incidents that may affect drivers. Visitors can search for specific locations, view live traffic updates, and sign up for email alerts to stay informed about road conditions in the UK.