Live traffic alerts M4 : Eastbound : J42 Earlswood to J41 Pentyla/Baglan : Roadworks : Road closed : 16/03/26-22/03/26 2000-0600 : Diversions in place : Start 16/03/2026 End 22/03/2026 M4 : Westbound : J46 Llangyfelach to J47 Penllergaer : Road closed : Maintenance work : 18/03/26-19/03/26 2000-0600 : Start 18/03/2026 End 19/03/2026 A465 : Eastbound : Rhymney : Road closed : Maintenance work : 18/03/26-20/03/26 2000-0600 : Start 18/03/2026 End 20/03/2026 A48 : Westbound : Foelgastell to Llanddarog : Resurfacing work : Road closed : Diversions in place : 18/03/26-21/03/26 2000-0600 : Start 18/03/2026 End 21/03/2026 M4 : Westbound : J33 Capel Llanilltern to J34 Miskin : 18/03/26-25/03/26 2000-0600 : Resurfacing work : Closed : Diversions in place : Start 18/03/2026 End 25/03/2026 A55 : Westbound : J35 Dobs Hill to J34 Ewloe Loop : 17/03/26-20/03/26 2000-0600 : Resurfacing work : Onslip closed : Road closed : Diversions in place : Start 17/03/2026 End 20/03/2026 A483 : Southbound : Coedpoeth : Roadworks : Lane closed : Offslip closed : 17/03/26-24/03/26 2000-0600 : Start 17/03/2026 End 24/03/2026 A487 : Both directions : Talybont : Resurfacing work : Road closed : Diversions in place : 17/03/26-20/03/26 1900-0600 : Start 17/03/2026 End 20/03/2026 M4 : Eastbound : J23 Rogiet to J22 Pilning/Prince of Wales Bridge : Road closed : 16/03/26-20/03/26 2100-0600 : Start 16/03/2026 End 20/03/2026 M4 : Eastbound : J43 Llandarcy : Onslip closed : Roadworks : 16/03/26-22/03/26 2000-0600 : Start 16/03/2026 End 22/03/2026 M4 : Eastbound : J38 Margam to J37 Pyle : Road closed : Maintenance work : 16/03/26-21/03/26 2000-0600 : Diversions in place : Start 16/03/2026 End 21/03/2026 M4 : Westbound : J37 Pyle to J39 Groes : Road closed : 16/03/26-21/03/26 2000-0600 : Diversions in place : Maintenance work : Start 16/03/2026 End 21/03/2026 M4 : Westbound : J26 Malpas : Offslip closed : Maintenance work : 16/03/26-21/03/26 2000-0600 : Start 16/03/2026 End 21/03/2026 A4232 : Southbound : M4 J33 Capel Llanilltern to St Fagans : Road closed : Maintenance work : Diversions in place : 16/03/26-20/03/26 2000-0600 : Start 16/03/2026 End 20/03/2026 A483 : Both directions : Cilmeri : Resurfacing work : Road closed : Diversions in place : 16/03/26-03/04/26 1900-0600 : Start 16/03/2026 End 03/04/2026 A483 : Both directions : Llandovery : Resurfacing work : Road closed : Diversions in place : 07/03/26-22/03/26 0800-1700 : Start 07/03/2026 End 22/03/2026 M4 : Eastbound : J36 Sarn : Roadworks : Entry slip road closed : Diversions in place : 02/03/26-21/03/26 2000-0600 : Start 02/03/2026 End 21/03/2026 M4 : Eastbound : J36 Sarn : Cyclic maintenance : Onslip closed : Diversions in place : 02/03/26-21/03/26 2000-0600 : Start 02/03/2026 End 21/03/2026 M4 : Eastbound : J40 Taibach : Roadworks : Exit slip road closed : Diversions in place : 02/03/26-21/03/26 0600 : Start 02/03/2026 End 21/03/2026 A487 : Both directions : Talybont to Aberystwyth : 17/03/26-20/03/26 1900-0600 : Start 17/03/2026 End 20/03/2026 M4 : Westbound : J33 Capel Llanilltern : 18/03/26-25/03/26 2000-0600 : onslip : Closed : Resurfacing work : Start 18/03/2026 End 25/03/2026 M4 : Westbound : J34 Miskin : 18/03/26-25/03/26 2000-0600 : offslip : Resurfacing work : Closed : Start 18/03/2026 End 25/03/2026 M4 : Both directions : J37 Pyle to J42 Earlswood : Cyclic maintenance : 1 lane closed on M4 : Entry/Exit slip roads closed : Diversions in place : 25/01/26-01/04/26 2000-0600 : Start 25/01/2026 End 01/04/2026 A470 : Both directions : Dolgellau to Llanelltyd : 10/03/26-31/03/26 0730-1800 : Resurfacing work : 10mph convoy : Temporary traffic lights : Slow moving vehicles : Start 10/03/2026 End 31/03/2026 A487 : Both directions : Aberystwyth Commins Coch : Improvement work : Temporary traffic lights : 02/02/26-23/06/26 0900-1600 : Start 02/02/2026 End 23/06/2026 OF View more live traffic alerts Latest videos What to do if you think your vehicle is on fire in or near a tunnel? | Tunnel Safety Tips Beth i'w wneud os ydych chi'n meddwl bod eich cerbyd ar dân y tu allan neu tu mewn i dwnnel Bod yn brentis gyda'r Asiant Cefnffyrdd De Cymru Meet the South Wales Trunk Road Agent's Apprentices – Building the Future of Wales’ Roads View all videos on YouTube Featured News Keeping Wales Moving in 2024: A Year in Review 27 January 2025 News View all news What’s happening on the roads Search for cameras Search Use current location CCTV cameras
