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Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.
Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.

A465 Westbound Lane 1 Closure between Glanbaiden & Brynmawr Junctions

Start date: 03/07/2026 | End date: 14/08/2026 

Works to carry out essential concrete repairs to A465 Clydach Gorge Viaduct. During this time a westbound lane one closure from the Drum and Monkey bus stop for approx. 800m will be in place. 

The lane closure is in place for safety reasons. Works will commence on 03/07/2026 for 6 weeks.

Urgent concrete repairs are required on A465 Clydach Gorge Viaduct on defects discovered during a recent inspection. The repairs are planned for completion by 14/08/2026. A lane one closure is required over the structure until the repair works are completed. 

For further information, please contact Traffic Wales on 0300 123 1213 or via Twitter @TrafficWalesS