A470 Northbound Closed: Delays

A470 Northbound Congestion Causes Delays Near Coryton and Nantgarw

Motorists are advised to expect delays on the A470 northbound between Coryton and Nantgarw due to congestion. This is currently affecting traffic on 6 August 2026, and is expected to continue until 6 August 2026, with a predicted end time of 19:13. The Welsh Government has confirmed that the A470 northbound is experiencing moderate congestion, resulting in delays for drivers.

The affected stretch of road passes through the Coryton to Nantgarw area. Drivers are being advised to plan their journeys accordingly and consider alternative routes to avoid the congested area. Motorists can stay up-to-date with the latest traffic information by checking traffic apps, such as Waze or Google Maps, which provide real-time updates on traffic conditions. Those planning to use the A470 northbound should also check for updates from the Welsh Government before embarking on their journey.

The moderate congestion has led to delays for drivers, and while efforts are being made to clear the backlog of traffic, drivers are advised to leave extra time for their journeys. The Welsh Government has confirmed that they are working to resolve the issue as quickly as possible. In the meantime, drivers can use alternative routes to reach their destinations, such as the M4 motorway or local roads.

While the congestion is currently affecting traffic on the A470 northbound, drivers can still access the area by using the M4 motorway and then joining the A470 southbound. However, this may add some extra time to journeys, and drivers should factor this into their planning. Motorists are also advised to be mindful of the road conditions and to drive safely, taking regular breaks to avoid fatigue.

The Welsh Government is responsible for maintaining the A470 and working to resolve the congestion issue. Drivers can find more information about the road conditions and traffic updates on the Welsh Government's website. For the latest information on road closures and traffic updates across the UK, visit Road Closures UK.

Drivers are advised to check for updates before embarking on their journey and to plan their route in advance to avoid the congested area. The Welsh Government will continue to monitor the situation and provide updates as more information becomes available. In the meantime, motorists are urged to exercise caution and to drive safely.