M4 junction closures and new Menai bridge in plans to tackle congestion on Welsh roads
Summary
The Welsh government plans to reduce traffic jams by possibly closing some junctions on the M4 motorway in Newport and building a new bridge over the Menai Strait. They will study different road options, including a new motorway or expanding tunnels, with some changes potentially happening by 2028 but no final decisions made yet.Key Facts
- Three junctions on the M4 near Newport may close or partially close by 2028 to improve traffic flow.
- A new bridge across the Menai Strait is proposed, costing up to £700 million and could take 10 years to build.
- An 18-month study will explore road-based solutions like a new motorway south of Newport or widening Brynglas Tunnels.
- Widening Brynglas Tunnels could cost around £1.7 billion and involve major construction challenges.
- Closing junctions might lead to more congestion and noise on other roads according to a review.
- The government plans smaller, quicker improvements to manage motorway traffic better over five years.
- Transport for Wales is helping speed up new train stations at Cardiff Parkway, Magor, and Undy to support transport links.
- The "black route" relief road option south of Newport has been ruled out but other motorway options are being considered.
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