Live traffic alerts M4 : Eastbound : J48 Hendy to J47 Penllergaer : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 A4232 : Northbound : A48 Interchange to M4 J33 Capel Llanilltern : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 A48M : Westbound : J29 Castleton to J29A St Mellons : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 A465 : Westbound : Neath to Llandarcy : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 M4 : Eastbound : J34 Miskin to J33 Capel Llanilltern : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 M4 : Eastbound : J28 Tredegar Park to J24 Coldra : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 M4 : Eastbound : J33 Capel Llanilltern : Congestion : offslip : Delays possible : Start 29/04/2026 End 29/04/2026 A470 : Southbound : Nantgarw to Coryton : Congestion : Delays possible : Start 29/04/2026 End 29/04/2026 A55 : Both directions : Britannia Bridge : Speed limit 30 mph : Due to high winds : Until further notice Start 29/04/2026 End 30/04/2026 M4 : Eastbound : J45 Ynysforgan : Exit slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0600 : Start 29/04/2026 End 30/04/2026 M4 : Both directions : J25A Grove Park to J26 Malpas : Roadworks : Road closed : Diversions in place : 29/04/26-01/05/26 2000-0600 : Start 29/04/2026 End 01/05/2026 A470 : Northbound : Coryton : Entry slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0100 : Start 29/04/2026 End 30/04/2026 A465 : Westbound : Llandarcy to Neath : Cyclic maintenance : Road closed : Diversions in place : 29/04/26-30/04/26 2000-0600 : Start 29/04/2026 End 30/04/2026 A40 : Both directions : Monmouth Dixton R/bout to Monmouth : Roadworks : Road closed : Diversions in place : 29/04/26-01/05/26 2000-0500 : Start 29/04/2026 End 01/05/2026 A55 : Westbound : Conwy Tunnel West Portal : 29/04/26-30/04/26 0700-1900 : Contraflow : 1 lane closed : Start 29/04/2026 End 30/04/2026 M4 : Westbound : J22 Pilning/Prince of Wales Bridge : Bridge closed : Diversions in place : 28/04/26-30/04/26 2100-0600 : Start 28/04/2026 End 30/04/2026 M4 : Westbound : J35 Pencoed : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 : Start 27/04/2026 End 01/05/2026 M4 : Eastbound : J32 Coryton : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 : Start 27/04/2026 End 01/05/2026 A4232 : Eastbound : M4 J33 Capel Llanilltern : Roadworks : Exit slip road closed : 27/04/26-01/05/26 2000-0600 : Start 27/04/2026 End 01/05/2026 A40 : Both directions : Crickhowell : 27/04/26-01/05/26 1900-0700 : Start 27/04/2026 End 01/05/2026 A487 : Eastbound : Tremadog to Porthmadog : 13/04/26-01/05/26 0600 : 1 lane closed : Start 13/04/2026 End 01/05/2026 A40 : Eastbound : Monmouth Dixton R/bout to Servicebridge : 14/04/26-30/06/26 0600 : Contraflow : Start 14/04/2026 End 30/06/2026 M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 : Start 27/04/2026 End 30/11/2026 A40 : Eastbound : Westbound : Abergavenny Hardwick R/bout to Abergavenny : 04/03/26-25/06/26 0930-1530 : Roadworks : STOP/GO in use : Start 04/03/2026 End 25/06/2026 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
