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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.

A40/A470 Tarell Roundabout, Brecon

Start Date: 28/09/2026 | End date: 23/10/2026

 

A470

Essential carriageway repairs will be undertaken between Monday 28th September and Friday 23rd October 2026 at this location.

Essential carriageway repairs will be undertaken between Monday 28th September and Friday 23rd October 2026 at this location.

Proposed restrictionsStart Date and TimeEnd date and TimeNotes

A40/A470 Lane closures

A40 Brecon Bypass Closed 

27/09/2026 19:00

01/10/2026 06:00

Take off existing carriageway surface 100mm roundabout and approaches

A40/A470 Lane closures

A40 Brecon Bypass Closed 

01/10/2026 19:00

09/10/2026 06:00

Take out and replace 150mm base roundabout and approaches
Full Closure A40 & A470 

11/10/2026 19:00

12/10/2026 06:00

Surface course roundabout and Road Markings
A40/A470 Lane closures 

12/10/2026 19:00

14/10/2026 06:00

Surface course roundabout approaches
A40/A470 Lane closures 

09/10/2026 19:00

16/10/2026 06:00

Take out and replace 60mm Binder approaches
A40/A470 Lane closures

16/10/2026 19:00

20/10/2026 06:00

Surface course approaches
A40/A470 Lane closures

20/10/2026 19:00

23/10/2026 06:00

Road markings, studs and high friction surface

For further information, please contact Traffic Wales on 0300 123 1213 or via X and Facebook.