December 18, 2019
A470 : Both directions : Builth Wells : 08/06/26-09/06/26 2000-0600 :
June 05, 2026
Description: A470 : Both directions : Builth Wells : 08/06/26-09/06/26 2000-0600 :, Start time: 08/06/2026 20:00 , End Date: 09/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 17:47
A40 : Both directions : Crickhowell to A449 Interchange : 09/06/26-13/06/26 1900-0700 :
June 05, 2026
Description: A40 : Both directions : Crickhowell to A449 Interchange : 09/06/26-13/06/26 1900-0700 :, Start time: 09/06/2026 19:00 , End Date: 13/06/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 17:45
M4 : Eastbound : J47 Penllergaer : 10/06/26-11/06/26 2000-0600 : onslip : Closed :
June 05, 2026
Description: M4 : Eastbound : J47 Penllergaer : 10/06/26-11/06/26 2000-0600 : onslip : Closed :, Start time: 10/06/2026 20:00 , End Date: 11/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:59
M4 : Westbound : J47 Penllergaer : 09/06/26-10/06/26 2000-0600 : onslip : Closed :
June 05, 2026
Description: M4 : Westbound : J47 Penllergaer : 09/06/26-10/06/26 2000-0600 : onslip : Closed :, Start time: 09/06/2026 20:00 , End Date: 10/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:58
M4 : Westbound : J44 Lon Las : 11/06/26 1930-0000 : onslip : offslip : Closed :
June 05, 2026
Description: M4 : Westbound : J44 Lon Las : 11/06/26 1930-0000 : onslip : offslip : Closed :, Start time: 11/06/2026 19:30 , End Date: 11/06/2026 0:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:46
M4 : Eastbound : J44 Lon Las : 10/06/26 1930-0000 : onslip : offslip : Closed :
June 05, 2026
Description: M4 : Eastbound : J44 Lon Las : 10/06/26 1930-0000 : onslip : offslip : Closed :, Start time: 10/06/2026 19:30 , End Date: 10/06/2026 0:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:44
M4 : Westbound : J43 Llandarcy : 10/06/26 1930-0000 : onslip : offslip : Closed :
June 05, 2026
Description: M4 : Westbound : J43 Llandarcy : 10/06/26 1930-0000 : onslip : offslip : Closed :, Start time: 10/06/2026 19:30 , End Date: 10/06/2026 0:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:43
M4 : Eastbound : J41 Pentyla/Baglan : offslip : 09/06/26 1930-0000 : Roadworks : Closed :
June 05, 2026
Description: M4 : Eastbound : J41 Pentyla/Baglan : offslip : 09/06/26 1930-0000 : Roadworks : Closed :, Start time: 09/06/2026 19:30 , End Date: 09/06/2026 0:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:39
M4 : Eastbound : J38 Margam : onslip : 11/06/26-12/06/26 2000-0600 : Roadworks : Closed :
June 05, 2026
Description: M4 : Eastbound : J38 Margam : onslip : 11/06/26-12/06/26 2000-0600 : Roadworks : Closed :, Start time: 11/06/2026 20:00 , End Date: 12/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:37
M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : 08/06/26-09/06/26 2000-0500 : Roadworks : Closed :
June 05, 2026
Description: M4 : Eastbound : J32 Coryton to J30 Cardiff Gate : 08/06/26-09/06/26 2000-0500 : Roadworks : Closed :, Start time: 08/06/2026 20:00 , End Date: 09/06/2026 5:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 16:33
A470 : Northbound : Taff's Well : 11/06/26-13/06/26 2000-0600 : Roadworks : Closed :
June 05, 2026
Description: A470 : Northbound : Taff's Well : 11/06/26-13/06/26 2000-0600 : Roadworks : Closed :, Start time: 11/06/2026 20:00 , End Date: 13/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 13:13
A470 : Southbound : Nantgarw to Taff's Well : 08/06/26-13/06/26 2000-0600 : Roadworks : Closed :
June 05, 2026
Description: A470 : Southbound : Nantgarw to Taff's Well : 08/06/26-13/06/26 2000-0600 : Roadworks : Closed :, Start time: 08/06/2026 20:00 , End Date: 13/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 12:55
A470 : Northbound : Abercynon to Pentrebach : 09/06/26-10/06/26 2000-0600 : Roadworks : Closed :
June 05, 2026
Description: A470 : Northbound : Abercynon to Pentrebach : 09/06/26-10/06/26 2000-0600 : Roadworks : Closed :, Start time: 09/06/2026 20:00 , End Date: 10/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 12:54
A40 : Both directions : Nantgaredig to Abergwili : 08/06/26-11/06/26 2000-0600 : 11/06/26-17/06/26 2000-0600 : Closed :
May 29, 2026
Description: A40 : Both directions : Nantgaredig to Abergwili : 08/06/26-11/06/26 2000-0600 : 11/06/26-17/06/26 2000-0600 : Closed :, Start time: 11/06/2026 20:00 , End Date: 17/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 29/05/2026 10:50
A487 : Both directions : Maentwrog : Resurfacing work : Temporary traffic lights : 10/06/26-19/06/26 0700-1600 :
June 04, 2026
Description: A487 : Both directions : Maentwrog : Resurfacing work : Temporary traffic lights : 10/06/26-19/06/26 0700-1600 :, Start time: 10/06/2026 7:00 , End Date: 19/06/2026 16:00, Severity: Moderate, Source: Welsh Government, Last updated: 04/06/2026 14:43
A40 : Both directions : Sennybridge : Structural inspections : Road closed : 09/06/26-10/06/26 2000-0600 :
June 02, 2026
Description: A40 : Both directions : Sennybridge : Structural inspections : Road closed : 09/06/26-10/06/26 2000-0600 :, Start time: 09/06/2026 20:00 , End Date: 10/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 02/06/2026 7:07
A483 : Southbound : Rhostyllen J4 Ruthin Road : Carriageway maintenance : Road closed : Diversions in place : 07/06/26-08/06/26 2000-0600 :
June 02, 2026
Description: A483 : Southbound : Rhostyllen J4 Ruthin Road : Carriageway maintenance : Road closed : Diversions in place : 07/06/26-08/06/26 2000-0600 :, Start time: 07/06/2026 20:00 , End Date: 08/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 02/06/2026 12:17
A470 : Both directions : Builth Wells Wye Bridge : Structural inspections : Road closed : Diversions in place : 08/06/26-09/06/26 0800-0600 :
June 01, 2026
Description: A470 : Both directions : Builth Wells Wye Bridge : Structural inspections : Road closed : Diversions in place : 08/06/26-09/06/26 0800-0600 :, Start time: 08/06/2026 8:00 , End Date: 09/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/06/2026 9:09
A40 : Both directions : Nantgaredig to White Mill : Resurfacing work : Road closed : Diversions in place : 08/06/26-17/06/26 2000-0600 :
June 01, 2026
Description: A40 : Both directions : Nantgaredig to White Mill : Resurfacing work : Road closed : Diversions in place : 08/06/26-17/06/26 2000-0600 :, Start time: 08/06/2026 20:00 , End Date: 17/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/06/2026 7:53
M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : 05/06/26-13/06/26 2000-0600 : Resurfacing work : Closed :
June 05, 2026
Description: M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : 05/06/26-13/06/26 2000-0600 : Resurfacing work : Closed :, Start time: 05/06/2026 20:00 , End Date: 13/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 05/06/2026 20:00
A487 : Southbound : Y Felinheli : Maintenance work : Closed : 01/06/26-07/06/26 2000-0400 :
June 01, 2026
Description: A487 : Southbound : Y Felinheli : Maintenance work : Closed : 01/06/26-07/06/26 2000-0400 :, Start time: 01/06/2026 20:00 , End Date: 07/06/2026 4:00, Severity: Road closure, Source: Welsh Government, Last updated: 01/06/2026 20:00
M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 :
April 27, 2026
Description: M4 : Eastbound : M4 St Julians Viaduct : 27/04/26-30/11/26 0600 :, Start time: 27/04/2026 6:00 , End Date: 30/11/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 27/04/2026 6:00
A40 : Eastbound : Monmouth Dixton R/bout to Servicebridge : 14/04/26-30/06/26 0600 : Contraflow :
April 14, 2026
Description: A40 : Eastbound : Monmouth Dixton R/bout to Servicebridge : 14/04/26-30/06/26 0600 : Contraflow :, Start time: 14/04/2026 6:00 , End Date: 30/06/2026 6:00, Severity: Severe, Source: Welsh Government, Last updated: 14/04/2026 6:00
A40 : Eastbound : Westbound : Abergavenny Hardwick R/bout to Abergavenny : 04/03/26-25/06/26 0930-1530 : Roadworks : STOP/GO in use :
April 03, 2026
Description: A40 : Eastbound : Westbound : Abergavenny Hardwick R/bout to Abergavenny : 04/03/26-25/06/26 0930-1530 : Roadworks : STOP/GO in use :, Start time: 04/03/2026 9:30 , End Date: 25/06/2026 15:30, Severity: Moderate, Source: Welsh Government, Last updated: 03/04/2026 11:10
A487 : Both directions : Aberystwyth Commins Coch : Improvement work : Temporary traffic lights : 02/02/26-23/06/26 0900-1600 :
February 02, 2026
Description: A487 : Both directions : Aberystwyth Commins Coch : Improvement work : Temporary traffic lights : 02/02/26-23/06/26 0900-1600 :, Start time: 02/02/2026 9:00 , End Date: 23/06/2026 16:00, Severity: Moderate, Source: Welsh Government, Last updated: 02/02/2026 9:00
