M4 junction closures and new Menai bridge in plans to tackle congestion on Welsh roads
Welsh government will also re-examine the case for a new motorway in proposals announced today.
By BBC News
The Welsh Government is considering closing or partly closing three M4 junctions around Newport as part of an 18-month review of road-based ways to tackle congestion.
The proposals include a full closure of junction 27 at High Cross, along with the closure of east-facing slip roads at junction 26 at Malpas and junction 25 at Caerleon.
No final decision has been made. The Welsh Government is expected to assess the effect on local roads and consult Newport City Council before deciding whether the measures should go ahead. Any junction changes are being considered for 2028.
The review will also examine other options, including widening the Brynglas Tunnels. Ministers have said the work could include a fresh assessment of a new motorway, although the previously proposed M4 relief road will not be revived.
The study follows a review which found that no single measure would resolve congestion around Newport. A preferred road-based option is expected to be selected after the 18-month process.
The Welsh Government has also announced that development work on a third crossing over the Menai Strait will restart. The work will cover the design, environmental assessment, business case and statutory approvals.
The proposed crossing was shelved in 2023. Construction has not been authorised, and the project is not expected to be completed for at least eight to 10 years. Earlier estimates put the total cost, including development work, at about £670m.
Shorter-term measures are planned for the existing Menai crossings, including wind deflectors and variable speed limits on Britannia Bridge. The measures are intended to reduce disruption when weather or other problems affect the crossings.
Funding for the proposals has not yet been confirmed.