Newport leaders attack Plaid over M4 tunnel traffic plan

Concerns are rising over the future of the M4 corridor and how to manage congestion around the Brynglas tunnels. Politicians have warned that any changes could force even more traffic onto city streets. At a Senedd session on 9 June, newly appointed Deputy Minister for Transport Mark Hooper confirmed the "black route"--a long-discussed road option--has been taken off the table.

However, Mr Hooper did not rule out other road measures, including the possibility of closing motorway junctions, sparking concerns among Newport leaders and residents. Newport MS Jayne Bryant voiced her concerns in the Senedd, highlighting the daily impact of M4 congestion. Ms Bryant said: "As a local resident, I know all too well that every time there's an accident or congestion at the Brynglas tunnels, motorway traffic from the M4 is pushed onto our local roads.

"This creates gridlock, choking the city of Newport and moves air pollution closer to homes and schools." She pressed the deputy minister for clarity on whether proposals to improve network resilience are part of existing studies commissioned by former transport minister Ken Skates, and whether options like the "blue route" or junction closures would be ruled out. Mr Hooper confirmed the government intends to "dig into the work that's been done" and expects to make a fuller announcement in September.

He acknowledged that the current network "is not designed for the amount of traffic that it's taking at the moment." Road options, other than the black route, remain under consideration. The possibility of major changes to the motorway or nearby junctions has raised alarm among residents and city leaders.

Ms Bryant said: "Plaid Cymru today confirmed that they are considering options which will take more traffic closer to homes in Newport. "They also haven't ruled out junction closures on the motorway or sending more traffic onto roads like the SDR. "Anyone living in Newport knows this is not the answer to congestion on the M4."

The Southern Distributor Road (SDR) runs alongside homes, businesses, and schools across Newport. Many believe turning it into a primary diversion route would simply move motorway-level traffic onto urban streets not built for that volume. Newport City Council leader Dimitri Batrouni echoed Ms Bryant's concerns.

Mr Batrouni said: "By refusing to rule out the 'Blue route' and junction closures, Plaid Cymru will penalise local people." He warned that pushing more traffic through the city would bring increased congestion, pollution, and disruption--undermining efforts to regenerate the city centre and attract new investment. The Welsh Government's stance is that the black route is no longer a viable option.

However, they are considering a mix of road and public transport improvements, including possible changes to motorway access and other routes. Newport leaders argue these changes could make the city a permanent pressure valve for problems on the M4. The question remains whether any final proposals will improve resilience on the motorway without pushing the burden onto Newport's roads.

If not, the city could continue to bear the brunt every time there is an issue at the Brynglas tunnels. Ms Bryant and Mr Batrouni's comments also reveal a deepening divide between the Welsh Government's national priorities and Newport's local needs. While the search continues for a long-term fix for the M4, Newport remains concerned that it may once again pay the price for problems that originate far beyond its borders.

Any future transport solution for the M4 corridor will be closely watched by Newport residents, who are eager to see changes that address congestion without bringing more disruption to the city they call home.