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Traffic Wales information line 0300 123 1213

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 -28 Usk Bridge: Waterproofing Maintenance

Start date: 08/09/23 | End date: 16/10/23

Essential maintenance work to M4 River Usk Bridge (near J25A and J25) to waterproof areas of the bridge deck.  

There will be overnight closures in advance and weekend closures during the main works as detailed below.

Provisional: 6 October, (22:00) - 9 October, (06:00):

  • Provisional weekend closure of the eastbound carriageway, the event of delay to planned closures due to unforeseen circumstances.

Provisional: 13 October - 16 October:

  • Provisional weekend closure eastbound carriageway, in the event of delay to planned closures due to unforeseen circumstances.

Westbound Closure:During westbound closures traffic to be diverted between J24 and J28. Traffic will be able to leave the M4 for Caerleon at J25 and Cwmbran J25A. Traffic will be able to join the M4 at J26 and J27.

Eastbound Closure:During eastbound closures traffic to be diverted between J28 and J24. Traffic will be able to leave the M4 at J27 Highcross and to Cwmbran and Caerleon at J26. Traffic will be able to join the M4 at J25A.

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


Call the Traffic Wales information line
0300 123 1213

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

Contact us