Tonight
Is the A470 closed tonight?
Yes. 1 full closure is planned on the A470 tonight, starting with Cefn coed to Merthyr Tydfil, Roadworks, Road closed, Diversions in place 27/10/26-28/10/26 2000-0600 : (27/10/2026 20:00).
1 full closure on the A470 in the next 18 hours. For live incidents see A470 traffic.
Updated at 08:29
Yes. 1 full closure is planned on the A470 tonight, starting with Cefn coed to Merthyr Tydfil, Roadworks, Road closed, Diversions in place 27/10/26-28/10/26 2000-0600 : (27/10/2026 20:00).
No. Nothing is planned to close on the A470 this weekend.
Cefn coed to Merthyr Tydfil · Traffic Wales
No closures planned on the A470 this weekend.
Nantgarw · Traffic Wales
Traffic information from Traffic Wales, plus National Highways’ Transport Data Feeds where they cover the road.
The A470 runs the length of Wales from Cardiff Bay to Llandudno, and its busy end is the dual carriageway between Cardiff and Merthyr Tydfil, where most of its congestion and roadworks sit. Data comes from Traffic Wales and refreshes every 5 minutes.