December 18, 2019
A470 : Northbound : Nantgarw : Carriageway maintenance : Onslip closed : Diversions in place : 20/05/26-21/05/26 1900-0100 :
May 16, 2026
Description: A470 : Northbound : Nantgarw : Carriageway maintenance : Onslip closed : Diversions in place : 20/05/26-21/05/26 1900-0100 :, Start time: 20/05/2026 19:00 , End Date: 21/05/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 9:37
A470 : Southbound : Nantgarw to Taff's Well : Carriageway maintenance : Road closed : Diversions in place : 18/05/26-06/06/26 2000-0600 :
May 16, 2026
Description: A470 : Southbound : Nantgarw to Taff's Well : Carriageway maintenance : Road closed : Diversions in place : 18/05/26-06/06/26 2000-0600 :, Start time: 18/05/2026 20:00 , End Date: 06/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 9:36
A470 : Northbound : Upper Boat : Carriageway maintenance : Onslip closed : Diversions in place : 21/05/26-22/05/26 1930-0200 :
May 16, 2026
Description: A470 : Northbound : Upper Boat : Carriageway maintenance : Onslip closed : Diversions in place : 21/05/26-22/05/26 1930-0200 :, Start time: 21/05/2026 19:30 , End Date: 22/05/2026 2:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 9:35
M4 : Eastbound : J46 Llangyfelach : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 1930-0100 :
May 16, 2026
Description: M4 : Eastbound : J46 Llangyfelach : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 1930-0100 :, Start time: 21/05/2026 19:30 , End Date: 22/05/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 8:28
M4 : Westbound : J46 Llangyfelach : Carriageway maintenance : Road closed : Diversions in place : 20/05/26-21/05/26 1930-0100 :
May 16, 2026
Description: M4 : Westbound : J46 Llangyfelach : Carriageway maintenance : Road closed : Diversions in place : 20/05/26-21/05/26 1930-0100 :, Start time: 20/05/2026 19:30 , End Date: 21/05/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 8:28
M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : Carriageway maintenance : Road closed : Diversions in place : 18/05/26-20/05/26 2000-0600 :
May 16, 2026
Description: M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : Carriageway maintenance : Road closed : Diversions in place : 18/05/26-20/05/26 2000-0600 :, Start time: 18/05/2026 20:00 , End Date: 20/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 8:27
M4 : Eastbound : J27 High Cross : Carriageway maintenance : Road closed : Diversions in place : 19/05/26-20/05/26 2000-0600 :
May 16, 2026
Description: M4 : Eastbound : J27 High Cross : Carriageway maintenance : Road closed : Diversions in place : 19/05/26-20/05/26 2000-0600 :, Start time: 19/05/2026 20:00 , End Date: 20/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 8:26
M4 : Eastbound : J26 Malpas to J25A Grove Park : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :
May 16, 2026
Description: M4 : Eastbound : J26 Malpas to J25A Grove Park : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :, Start time: 21/05/2026 20:00 , End Date: 22/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 8:24
M4 : Westbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :
May 16, 2026
Description: M4 : Westbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :, Start time: 21/05/2026 20:00 , End Date: 22/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 7:52
M4 : Eastbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :
May 16, 2026
Description: M4 : Eastbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 21/05/26-22/05/26 2000-0600 :, Start time: 21/05/2026 20:00 , End Date: 22/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 7:51
M4 : Eastbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 20/05/26-21/05/26 2000-0600 :
May 16, 2026
Description: M4 : Eastbound : J23 Rogiet : Carriageway maintenance : Road closed : Diversions in place : 20/05/26-21/05/26 2000-0600 :, Start time: 20/05/2026 20:00 , End Date: 21/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 6:53
A55 : Eastbound : J15A Penmaenmawr : Offslip closed : 19/05/26-20/05/26 1930-0600 :
May 15, 2026
Description: A55 : Eastbound : J15A Penmaenmawr : Offslip closed : 19/05/26-20/05/26 1930-0600 :, Start time: 19/05/2026 19:30 , End Date: 20/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 15/05/2026 14:38
A55 : Eastbound : J33 Northop (Flint/Mold) : Onslip closed : 20/05/26-21/05/26 1930-0630 :
May 15, 2026
Description: A55 : Eastbound : J33 Northop (Flint/Mold) : Onslip closed : 20/05/26-21/05/26 1930-0630 :, Start time: 20/05/2026 19:30 , End Date: 21/05/2026 6:30, Severity: Road closure, Source: Welsh Government, Last updated: 15/05/2026 14:23
A55 : Westbound : J33 Northop (Flint/Mold) : Offslip closed : 20/05/26-21/05/26 1930-0630 :
May 15, 2026
Description: A55 : Westbound : J33 Northop (Flint/Mold) : Offslip closed : 20/05/26-21/05/26 1930-0630 :, Start time: 20/05/2026 19:30 , End Date: 21/05/2026 6:30, Severity: Road closure, Source: Welsh Government, Last updated: 15/05/2026 14:23
A55 : Westbound : J33A Northop : Offslip closed : 20/05/26-21/05/26 2030-0730 : Diversions in place :
May 15, 2026
Description: A55 : Westbound : J33A Northop : Offslip closed : 20/05/26-21/05/26 2030-0730 : Diversions in place :, Start time: 20/05/2026 20:30 , End Date: 21/05/2026 7:30, Severity: Road closure, Source: Welsh Government, Last updated: 15/05/2026 13:59
A40 : Both directions : Llandovery to Sennybridge : 19/05/26-21/05/26 2000-0600 : Closed : Diversions in place :
May 14, 2026
Description: A40 : Both directions : Llandovery to Sennybridge : 19/05/26-21/05/26 2000-0600 : Closed : Diversions in place :, Start time: 19/05/2026 20:00 , End Date: 21/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 14/05/2026 8:05
A40 : Both directions : Crickhowell : 16/05/26-18/05/26 0700 : FULL WEEKEND CLOSURE : Diversions in place :
May 16, 2026
Description: A40 : Both directions : Crickhowell : 16/05/26-18/05/26 0700 : FULL WEEKEND CLOSURE : Diversions in place :, Start time: 16/05/2026 7:00 , End Date: 18/05/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 16/05/2026 7:00
A470 : Northbound : Taff's Well to Nantgarw : Road closed : 11/05/26-23/05/26 2000-0600 : Diversions in place :
May 11, 2026
Description: A470 : Northbound : Taff's Well to Nantgarw : Road closed : 11/05/26-23/05/26 2000-0600 : Diversions in place :, Start time: 11/05/2026 20:00 , End Date: 23/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 11/05/2026 20:00
A40 : Both directions : Crickhowell : 11/05/26-18/05/26 1900-0700 :
May 11, 2026
Description: A40 : Both directions : Crickhowell : 11/05/26-18/05/26 1900-0700 :, Start time: 11/05/2026 19:00 , End Date: 18/05/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 11/05/2026 19:00
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
