December 18, 2019
M4 : Westbound : J37 Pyle to J38 Margam : Resurfacing work : Bridge closed : Diversion : 02/10/26-04/10/26 2000-0600 :
September 26, 2026
Description: M4 : Westbound : J37 Pyle to J38 Margam : Resurfacing work : Bridge closed : Diversion : 02/10/26-04/10/26 2000-0600 :, Start time: 02/10/2026 20:00 , End Date: 04/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2026 11:48
M4 : Eastbound : J38 Margam to J37 Pyle : Resurfacing work : Bridge closed : Diversion : 29/09/26-02/10/26 2000-0600 :
September 29, 2026
Description: M4 : Eastbound : J38 Margam to J37 Pyle : Resurfacing work : Bridge closed : Diversion : 29/09/26-02/10/26 2000-0600 :, Start time: 29/09/2026 20:00 , End Date: 02/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 29/09/2026 20:00
M4 : Eastbound : J34 Miskin : Electrical work : Entry slip road closed : Diversion : 28/09/26-02/10/26 2000-0600 :
September 28, 2026
Description: M4 : Eastbound : J34 Miskin : Electrical work : Entry slip road closed : Diversion : 28/09/26-02/10/26 2000-0600 :, Start time: 28/09/2026 20:00 , End Date: 02/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 28/09/2026 20:00
A470 : Both directions : Abercynon to Nantgarw : Surveys : Entry slip roads closed : 1 lane closed : Diversion : 24/09/26-08/10/26 2000-0600 :
September 26, 2026
Description: A470 : Both directions : Abercynon to Nantgarw : Surveys : Entry slip roads closed : 1 lane closed : Diversion : 24/09/26-08/10/26 2000-0600 :, Start time: 24/09/2026 20:00 , End Date: 08/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2026 11:41
A40 : Both directions : Monmouth Dixton R/bout : 21/09/26-02/10/26 2000-0600 : Resurfacing work : 1 lane closed :
September 25, 2026
Description: A40 : Both directions : Monmouth Dixton R/bout : 21/09/26-02/10/26 2000-0600 : Resurfacing work : 1 lane closed :, Start time: 21/09/2026 20:00 , End Date: 02/10/2026 6:00, Severity: Slight, Source: Welsh Government, Last updated: 25/09/2026 12:27
A4076 : Both directions : Steynton to A477 Interchange : Maintenance work : Road closed : 29/09/26-14/11/26 2000-0500 :
September 29, 2026
Description: A4076 : Both directions : Steynton to A477 Interchange : Maintenance work : Road closed : 29/09/26-14/11/26 2000-0500 :, Start time: 29/09/2026 20:00 , End Date: 14/11/2026 5:00, Severity: Road closure, Source: Welsh Government, Last updated: 29/09/2026 20:00
A40 : Southbound : A40 Welsh Border to Monmouth : Resurfacing work : roundabout Closed : Diversions in place : 30/09/26-02/10/26 2000-0600 :
September 30, 2026
Description: A40 : Southbound : A40 Welsh Border to Monmouth : Resurfacing work : roundabout Closed : Diversions in place : 30/09/26-02/10/26 2000-0600 :, Start time: 30/09/2026 20:00 , End Date: 02/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 30/09/2026 20:00
A494 : Both directions : Ruthin : Improvement work : STOP/GO in use : Delays possible : 28/09/26-23/10/26 0900-1200 :
September 28, 2026
Description: A494 : Both directions : Ruthin : Improvement work : STOP/GO in use : Delays possible : 28/09/26-23/10/26 0900-1200 :, Start time: 28/09/2026 9:00 , End Date: 23/10/2026 12:00, Severity: Moderate, Source: Welsh Government, Last updated: 28/09/2026 9:00
A55 : Both directions : J15 Llanfairfechan to J15A Penmaenmawr : 28/09/26-02/10/26 1900-0700 : Maintenance work : Contraflow : Width limit 3.2m :
September 28, 2026
Description: A55 : Both directions : J15 Llanfairfechan to J15A Penmaenmawr : 28/09/26-02/10/26 1900-0700 : Maintenance work : Contraflow : Width limit 3.2m :, Start time: 28/09/2026 19:00 , End Date: 02/10/2026 7:00, Severity: Severe, Source: Welsh Government, Last updated: 28/09/2026 19:00
A483 : Both directions : Newtown Bypass to Llaithddu Junction : 28/09/26-02/10/26 0900-1515 : Cyclic maintenance : Closed : Diversions in place :
September 28, 2026
Description: A483 : Both directions : Newtown Bypass to Llaithddu Junction : 28/09/26-02/10/26 0900-1515 : Cyclic maintenance : Closed : Diversions in place :, Start time: 28/09/2026 9:00 , End Date: 02/10/2026 15:15, Severity: Road closure, Source: Welsh Government, Last updated: 28/09/2026 9:00
A483 : Both directions : Newtown to Llanbadarn Fynydd : Cyclic maintenance : Road closed : Diversion 28/09/26-02/10/26 0900-1515 :
September 28, 2026
Description: A483 : Both directions : Newtown to Llanbadarn Fynydd : Cyclic maintenance : Road closed : Diversion 28/09/26-02/10/26 0900-1515 :, Start time: 28/09/2026 9:00 , End Date: 02/10/2026 15:15, Severity: Road closure, Source: Welsh Government, Last updated: 28/09/2026 9:00
A40 : Both directions : Tarell Roundabout : 27/09/26-12/10/26 1900-0600 : A470 Resurfacing work : Closed : Diversions in place :
September 27, 2026
Description: A40 : Both directions : Tarell Roundabout : 27/09/26-12/10/26 1900-0600 : A470 Resurfacing work : Closed : Diversions in place :, Start time: 27/09/2026 19:00 , End Date: 12/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/09/2026 19:00
A40 : Both directions : Tarell Roundabout : 27/09/26-23/10/26 1900-0600 : A470 Resurfacing work : 1 lane closed :
September 27, 2026
Description: A40 : Both directions : Tarell Roundabout : 27/09/26-23/10/26 1900-0600 : A470 Resurfacing work : 1 lane closed :, Start time: 27/09/2026 19:00 , End Date: 23/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/09/2026 19:00
M4 : Westbound : J22 Pilning/Prince of Wales Bridge to J23 Rogiet : 26/09/26-02/10/26 2100-0600 : Closed : Diversions in place :
September 26, 2026
Description: M4 : Westbound : J22 Pilning/Prince of Wales Bridge to J23 Rogiet : 26/09/26-02/10/26 2100-0600 : Closed : Diversions in place :, Start time: 26/09/2026 21:00 , End Date: 02/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 26/09/2026 21:00
A470 : Northbound : Nantgarw : 21/09/26-03/10/26 2000-0600 : offslip : Closed : Diversions in place :
September 21, 2026
Description: A470 : Northbound : Nantgarw : 21/09/26-03/10/26 2000-0600 : offslip : Closed : Diversions in place :, Start time: 21/09/2026 20:00 , End Date: 03/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 21/09/2026 20:00
M4 : Eastbound : J35 Pencoed : 15/09/26-09/10/26 1900-0600 : Clearance work : Exit slip road closed : Diversions in place :
September 15, 2026
Description: M4 : Eastbound : J35 Pencoed : 15/09/26-09/10/26 1900-0600 : Clearance work : Exit slip road closed : Diversions in place :, Start time: 15/09/2026 19:00 , End Date: 09/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 15/09/2026 19:00
A470 : Both directions : Llanrwst : Resurfacing work : 10mph convoy : Temporary traffic lights : Width limit 3.25m : 07/09/26-24/10/26 0700-0200 :
September 07, 2026
Description: A470 : Both directions : Llanrwst : Resurfacing work : 10mph convoy : Temporary traffic lights : Width limit 3.25m : 07/09/26-24/10/26 0700-0200 :, Start time: 07/09/2026 7:00 , End Date: 24/10/2026 2:00, Severity: Road closure, Source: Welsh Government, Last updated: 07/09/2026 7:00
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 :
September 07, 2026
Description: 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 time: 07/09/2026 7:00 , End Date: 24/10/2026 2:00, Severity: Moderate, Source: Welsh Government, Last updated: 07/09/2026 7:00
