A465 Glanbaiden to Brynmawr
Start Date: 16/11/2026 | End Date: 28/11/2026
Works to carry out essential concrete testing to inform future repairs to A465 Clydach Gorge Viaduct. During this time a series of night time closures (20:00 – 06:00) of the A465 Westbound from Glanbaiden roundabout to Brynmawr roundabout will be in place. Works will commence on 16/11/2026 for 2 weeks.
Concrete testing is required on A465 Clydach Gorge Viaduct to inform the design of future concrete repairs.
The works will take place over a series of night time closures (20:00 – 06:00) of the A465 Westbound from Glanbaiden roundabout to Brynmawr roundabout.