Live traffic alerts A470 : Both directions : Llanrwst : Resurfacing work : 10mph convoy : Temporary traffic lights : Width limit 3.25m : 07/09/26-24/10/26 0700-0200 : Start 07/09/2026 End 24/10/2026 M4 : Eastbound : J35 Pencoed : 15/09/26-09/10/26 1900-0600 : Clearance work : Exit slip road closed : Diversions in place : Start 15/09/2026 End 09/10/2026 A470 : Both directions : Abercynon to Nantgarw : Surveys : Entry slip roads closed : 1 lane closed : Diversion : 24/09/26-08/10/26 2000-0600 : Start 24/09/2026 End 08/10/2026 A40 : Both directions : Tarell Roundabout : 27/09/26-23/10/26 1900-0600 : A470 Resurfacing work : 1 lane closed : Start 27/09/2026 End 23/10/2026 A40 : Both directions : Tarell Roundabout : 27/09/26-12/10/26 1900-0600 : A470 Resurfacing work : Closed : Diversions in place : Start 27/09/2026 End 12/10/2026 A4076 : Both directions : Steynton to A477 Interchange : Maintenance work : Road closed : 29/09/26-14/11/26 2000-0500 : Start 29/09/2026 End 14/11/2026 M4 : Westbound : J37 Pyle to J38 Margam : Resurfacing work : Bridge closed : Diversion : 02/10/26-04/10/26 2000-0600 : Start 02/10/2026 End 04/10/2026 A470 : Both directions : Llanrwst to A55 J19 Glan Conwy : Maenan : Resurfacing work : STOP/GO in use : Width limit 3.25m : 07/09/26-24/10/26 0700-0200 : Start 07/09/2026 End 24/10/2026 A494 : Both directions : Ruthin : Improvement work : STOP/GO in use : Delays possible : 28/09/26-23/10/26 0900-1200 : Start 28/09/2026 End 23/10/2026 OF View more live traffic alerts