Skip to main content
Traffic Wales information line 0300 123 1213

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

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

M4 J28 Ebbw River Bridge Improvements

Start Date: 24th May 2021 | End Date: Autumn 2022

Ebbw River Bridge Construction work

This project will include bridge strengthening, resurfacing and lining works. This will improve safety on this part of the M4 and reduce the risk of unplanned closures.

For more information regarding traffic management see details below.

The following restrictions will be in place until Autumn 2022*:

  • 24hour lane closure on M4 J28 eastbound slip road to give access and allow works to be undertaken safely. Pedestrian access in the vicinity of the bridge and over the reservoir bund next to the M4 will be restricted during this time.
  • Overnight closures will be needed to complete bridge strengthening works.
  • 44t abnormal load weight restriction between J26 and J28. Abnormal Loads will be diverted on the southern distributor road.
  • Narrow lanes westbound from M4 J26-28

M4 Westbound between J24 Coldra and J28 Tredegar Park

  • Overnight closure from 20:00-06:00 including J27 High Cross westbound onslip for 2 nights on June 23rd, 24th and August 1st.*

M4 Westbound between J26 Malpas and J28 Tredegar Park

  • Lane 1 and 2 closures from 20:00-06:00 on July 4th, 5, 11th and 12th.

M4 Eastbound between J28 Tredegar Park and J27 High Cross

  • Overnight closure from 20:00-06:00 for 1 night on August 1st.*

*Additional closure booked on August 2nd to be confirmed.


There will be a restriction of abnormal loads and realignment of the westbound carriageway in the form of narrow lanes

Safety inspections and strengthening works may also need to be carried out under lane closures. We are asking the travelling public to be aware of these works and to follow the road signs.

The majority of works are being carried out during off-peak hours to minimise disruption. Some activities may take place overnight between 20:00 - 06:00.

Nosier activities will be done during the day or early evening to lessen disruption wherever possible.

Please see below for the diversion during overnight closures.

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