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

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The Welsh Government’s traffic information service for motorways and trunk roads in Wales

M4 J24-J25A Hereford Rail Concrete Repairs

Start Date:17/09/2022| End Date:11/12/2022

Works to carry out essential concrete repairs to Hereford Rail Bridge located on the M4 just east of Brynglas Tunnels.

The work will be carried out over 13 weeks on Saturday night through to Sunday morning only making use of section of the railway that have been agreed by Network Rail beforehand.

Lanes 1 and 2 on the M4 westbound carriageway will be closed between 20:00 – 09:00.

17/09/22 - 22.00 - 09.00
24/09/22 - 22.00 - 09.00
08/10/22 - 22.00 - 09.00
15/10/22 - 22.00 - 09.00
22/10/22 - 22.00 - 09.00
29/10/22 - 22.00 - 08.00 Half Term
05/11/22 - 22.00 - 08.00 Half Term
12/11/22 - 22.00 - 09.00
19/11/22 - 22.00 - 09.00
26/11/22 - 22.00 - 09.00
03/12/22 - 22.00 - 09.00
10/12/22 - 22.00 - 09.00

J25A Westbound exit will be closed and Traffic will be diverted off at J25 to join the A4042 towards Cwmbran.

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


Call the Traffic Wales information line
0300 123 1213

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

Contact us