Road traffic alerts | Traffic Wales

11 results

This list shows the highest priority alerts for the motorway and trunk road network in Wales. To view local authority information, please go to our Road Traffic Map or to view information for England visit Traffic England.

M48 : Both directions : Severn Bridge : 7.5t weight restriction for heavy goods vehicles from 27/05/25-until further notice

Start: 27/05/2025

End: 23/05/2026

A470 : Southbound : Nantgarw to Coryton : Congestion : Delays possible :

Start: 31/07/2025

End: 31/07/2025

A465 : Westbound : Neath to Llandarcy : Congestion : Delays possible :

Start: 31/07/2025

End: 31/07/2025

M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : Resurfacing work : Road closed : Diversions in place : 23/07/25-21/08/25 2000-0600 :

Start: 23/07/2025

End: 21/08/2025

A470 : Southbound : Abercynon to Pontypridd : Resurfacing work : Closed : Diversions in place : 28/07/25-30/08/25 2000-0600 :

Start: 28/07/2025

End: 30/08/2025

M4 : Eastbound : J28 Tredegar Park : Carriageway maintenance : Road closed : Diversions in place : 31/07/25-01/08/25 2000-0500 :

Start: 31/07/2025

End: 01/08/2025

M4 : Westbound : J28 Tredegar Park : Carriageway maintenance : Road closed : Diversions in place : 31/07/25-01/08/25 2000-0500 :

Start: 31/07/2025

End: 01/08/2025

M4 : Eastbound : J48 Hendy : Carriageway maintenance : Road closed : Diversions in place : 31/07/25-01/08/25 2000-0600 :

Start: 31/07/2025

End: 01/08/2025

A40 : Both directions : Gibraltar Tunnels to Mitchel Troy : Carriageway maintenance : Road closed : Diversions in place : 01/08/25-02/08/25 2000-0600 :

Start: 01/08/2025

End: 02/08/2025

M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : Lane closed : Due to Maintenance works : Delays possible :

Start: 24/07/2025

End: 20/08/2025