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Concerns raised Severn Bridge closure could add hours to journey times

01 May 2025 3 minute read
The M48 Severn Bridge. Photo credit: National Highways

Twm Owen, local democracy reporter

Fears have been raised that the closure of the first Severn Bridge to lorries later this month could add hours to local journeys.

The M48 Severn Bridge, from Chepstow to Aust, is to have a weight limit imposed from Tuesday, May 27 meaning heavy goods vehicles over 7.5-tonnes, that currently make up around 10 per cent of the 32,000 vehicles that cross it every day, will need to use the second Severn crossing, the M4 Prince of Wales bridge to travel between Wales and England.

But Wales’ transport minister Ken Skates has been told local people fear further gridlock on in and around the M4 and trunk roads in Monmouthshire.

The bridges are operated by the UK Government’s National Highways agency but Monmouth Senedd Member Peter Fox asked in the Welsh Parliament what steps the Welsh Government is taking to reduce the impact on alternative routes.

Appalling congestion

Conservative Mr Fox, who said it is recognised the bridge closure is “essential” for strengthening works, said a “reconfiguration” of M4 junction 23, at Magor, would have to be kept under review but described the Highbeech roundabout as his “main area of concern”.

He said the area is “plagued by appalling congestion” and urged the Labour minister to find a date for an already promised visit to Chepstow to address traffic concerns.

Mr Fox said “immediate attention” is needed to Chepstow’s Highbeech roundabout: “HGVs could, quite conceivably,indeed, it’s likely, use this to access the A48 to head into England, if there are any closures on the Prince of Wales bridge, for instance. They will use it to access the A48 or even the A466 to Monmouth, to head to the M50, as a shortcut, if you like, through.”

Pinch point

Newport East Labour MS John Griffiths said he was concerned about the impact on junctions 23 and 23A of the M4 where lorries will have to “loop around” to head for the M4 bridge.

He said: “Recently, during closures of the M48 bridge, Magor and Undy residents found that journeys from their villages and towns to the M4, which normally take a few minutes, were taking, incredibly, almost two hours, because of the incredible congestion and the pinch point at that junction.

“So, unsurprisingly, they’re very concerned about the upcoming restrictions that we’re discussing in terms of HGVs and just what the consequences would be for them.”

Mr Skates said National Highways is organising workshops to discuss concerns which will include Monmouthshire County Council and said he and his officials will raise concerns over the Highbeech roundabout and they are investigating measures that could be put in place at junction 23A “to aid the local community”.


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Les Cargot
Les Cargot
11 days ago

I had the misfortune to travel east on the M4 on the Wednesday before Easter when the old bridge had closed due to high winds. The traffic was backed up almost to the Brynglas tunnels. Why? Because the three lanes on the new bridge merged into two because of roadworks on the bridge. This was only signposted just before the lanes merged! Given the number of Matrix signs along the route surely motorists could have been warned much earlier to get into the appropriate lanes? I know there are always chancers who will try to push in at the last… Read more »

Last edited 11 days ago by Les Cargot
Hal
Hal
11 days ago
Reply to  Les Cargot

That’s English Nationalist Highways for you.

Jeff
Jeff
11 days ago
Reply to  Les Cargot

Maintenance needs to be done. Merge in turn needs to be more accepted. Not forgetting that its two lanes after the bridge anyway (after the peel off for the SW traffic) till the steep hill then its clunkers and wagons and caravans struggling….

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