Wales Traffic Alerts

Information for motorways and trunk roads

A465 Brynmawr to Gilwern Road Widening Scheme - Planned Road Closures - ongoing to late 2018 (Updated 10/05/18)

A465 Brynmawr to Gilwern Road Widening Scheme - Planned Road Closures - ongoing to late 2018 (Updated 10/05/18)


A483 Wind street - Tir y Dail lane junction, Ammanford, Carmarthenshire Improvement scheme is commencing on 12 February 2018 (External Link)

A483 Wind street - Tir y Dail lane junction, Ammanford, Carmarthenshire Improvement scheme is commencing on 12 February 2018 (External Link)


Average speed cameras to improve safety on A55 Rhuallt Hill westbound (Posted 03/05/18)

Average speed cameras to improve safety on A55 Rhuallt Hill westbound (Posted 03/05/18)


M4 Brynglas Tunnels Planned Closures - June 2016 to June 2018 (updated 30/04/18)

M4 Brynglas Tunnels Planned Closures - Tunnel Refurbishment & Routine Maintenance - June 2016 to June 2018 (updated 30/04/18)


M4 South East Wales Variable Speed Limit Scheme - Frequently Asked Questions (updated 07/11/17)

M4 South East Wales Variable Speed Limit Scheme - Frequently Asked Questions (updated 07/11/17)


Traffic Wales covers the motorway and trunk road network only - click to view our road coverage

Traffic Wales covers the motorway and trunk road network only - click to view our road coverage




A487 : Both directions : Bangor Road Caernarfon : BT work : Temporary traffic lights : Delays possible : 15/05/18-29/05/18 0900-1700 : - (Severity: Moderate)

Description : A487 : Both directions : Bangor Road Caernarfon : BT work : Temporary traffic lights : Delays possible : 15/05/18-29/05/18 0900-1700 : , Planned Start : 15/05/2018 09:00 , Planned End : 29/05/2018 17:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059867:2018059867


A487 : Both directions : Garndolbenmaen to Penmorfa : BT work : Temporary traffic lights : Delays possible : 17/05/18-21/05/18 0900-1700 : - (Severity: Moderate)

Description : A487 : Both directions : Garndolbenmaen to Penmorfa : BT work : Temporary traffic lights : Delays possible : 17/05/18-21/05/18 0900-1700 : , Planned Start : 17/05/2018 09:00 , Planned End : 21/05/2018 17:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059868:2018059868


A5 : Both directions : Chirk By-pass : Closed : Local Diversions : Maintenance works : 24/05/18-25/05/18 2000-0600 : - (Severity: Severe)

Description : A5 : Both directions : Chirk By-pass : Closed : Local Diversions : Maintenance works : 24/05/18-25/05/18 2000-0600 : , Planned Start : 24/05/2018 20:00 , Planned End : 25/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059871:2018059871


A470 : Both directions : Builth Wells : Urdd Eisteddfod : Temporary traffic lights : Delays possible : 23/05/18-02/06/18 24hrs - (Severity: Severe)

Description : A470 : Both directions : Builth Wells : Urdd Eisteddfod : Temporary traffic lights : Delays possible : 23/05/18-02/06/18 24hrs , Planned Start : 23/05/2018 00:00 , Planned End : 02/06/2018 00:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059882:2018059882


A44 : Both directions : Ponterwyd to Llangurig : Emergency works : Temporary traffic lights : 24/05/17-24/05/18 0700-1800 : - (Severity: Slight)

Description : A44 : Both directions : Ponterwyd to Llangurig : Emergency works : Temporary traffic lights : 24/05/17-24/05/18 0700-1800 : , Traffic Control : - , Start : Planned for 24/05/2017 07:00 , End : Planned for 24/05/2018 18:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018045424:2018045424


A487 : Both directions : Corris to Machynlleth : Maintenance works : Delays : Temporary traffic lights : 27/11/17-31/05/18 0600-2000 : - (Severity: Moderate)

Description : A487 : Both directions : Corris to Machynlleth : Maintenance works : Delays : Temporary traffic lights : 27/11/17-31/05/18 0600-2000 : , Traffic Control : - , Start : Planned for 27/11/2017 06:00 , End : Planned for 31/05/2018 20:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018054471:2018054471


A5 : Both directions : Capel Curig : Maintenance work : Temporary traffic lights : Delays possible : 25/01/18-07/06/18 0900-1700 : - (Severity: Moderate)

Description : A5 : Both directions : Capel Curig : Maintenance work : Temporary traffic lights : Delays possible : 25/01/18-07/06/18 0900-1700 : , Traffic Control : - , Start : Planned for 25/01/2018 09:00 , End : Planned for 07/06/2018 17:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018055434:2018055434


A458 : Both directions : Mallwyd to Cwm-Cewydd : Temporary traffic lights : Width limit 3.25m eastbound: 08/02/18-14/07/18 24hrs - (Severity: Moderate)

Description : A458 : Both directions : Mallwyd to Cwm-Cewydd : Temporary traffic lights : Width limit 3.25m eastbound: 08/02/18-14/07/18 24hrs , Traffic Control : - , Start : Planned for 08/02/2018 00:00 , End : Planned for 14/07/2018 00:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018055715:2018055715


A483 : Both directions : Newtown : Temporary traffic lights : Construction work : 08/05/18-20/07/18 24hrs : - (Severity: Moderate)

Description : A483 : Both directions : Newtown : Temporary traffic lights : Construction work : 08/05/18-20/07/18 24hrs : , Traffic Control : - , Start : Planned for 08/05/2018 00:00 , End : Planned for 20/07/2018 00:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059238:2018059238


M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : Maintenance work : Road closed : 19/05/18-24/05/18 2000-0600 : - (Severity: Severe)

Description : M4 : Eastbound : J45 Ynysforgan to J44 Lon Las : Maintenance work : Road closed : 19/05/18-24/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 16/05/2018 20:00 , End : Planned for 24/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059533:2018059835


A483 : Both directions : Llanwrtyd Wells : Temporary traffic lights : Delays possible : 10/05/18-25/05/18 : - (Severity: Slight)

Description : A483 : Both directions : Llanwrtyd Wells : Temporary traffic lights : Delays possible : 10/05/18-25/05/18 : , Traffic Control : - , Start : Planned for 10/05/2018 00:00 , End : Planned for 25/05/2018 00:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059554:2018059554


A487 : Both directions : Llanarth : Temporary traffic lights : Delays possible : 09/05/18-09/06/18 : - (Severity: Slight)

Description : A487 : Both directions : Llanarth : Temporary traffic lights : Delays possible : 09/05/18-09/06/18 : , Traffic Control : - , Start : Planned for 09/05/2018 00:00 , End : Planned for 09/06/2018 00:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059558:2018059558


A487 : Both directions : Y Felinheli to A55 J9 Treborth : Temporary traffic lights : Delays possible : 15/05/18-29/05/18 0900-1700 : - (Severity: Moderate)

Description : A487 : Both directions : Y Felinheli to A55 J9 Treborth : Temporary traffic lights : Delays possible : 15/05/18-29/05/18 0900-1700 : , Traffic Control : - , Start : Planned for 15/05/2018 09:00 , End : Planned for 29/05/2018 17:00 , Severity : Moderate , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059560:2018059560


A5 : Both directions : Pentrefoelas : Temporary traffic lights : Delays possible : 24/04/18-08/06/18 : - (Severity: Slight)

Description : A5 : Both directions : Pentrefoelas : Temporary traffic lights : Delays possible : 24/04/18-08/06/18 : , Traffic Control : - , Start : Planned for 24/04/2018 00:00 , End : Planned for 08/06/2018 00:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059566:2018059566


A5 : Both directions : Glyndyfrdwy : Roadworks : Temporary traffic lights : Delays possible : 08/05/18-21/05/18 : - (Severity: Slight)

Description : A5 : Both directions : Glyndyfrdwy : Roadworks : Temporary traffic lights : Delays possible : 08/05/18-21/05/18 : , Traffic Control : - , Start : Planned for 08/05/2018 00:00 , End : Planned for 21/05/2018 00:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059567:2018059567


A5 : Both directions : Corwen : Roadworks : Temporary traffic lights : Delays possible : 08/05/18-22/05/18 : - (Severity: Slight)

Description : A5 : Both directions : Corwen : Roadworks : Temporary traffic lights : Delays possible : 08/05/18-22/05/18 : , Traffic Control : - , Start : Planned for 08/05/2018 00:00 , End : Planned for 22/05/2018 00:00 , Severity : Slight , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059568:2018059568


A55 : Westbound : J27 St Asaph to J24 Faenol : Diversions in place : Resurfacing work : 14/05/18-22/05/18 1900-0700 : - (Severity: Severe)

Description : A55 : Westbound : J27 St Asaph to J24 Faenol : Diversions in place : Resurfacing work : 14/05/18-22/05/18 1900-0700 : , Traffic Control : - , Start : Planned for 14/05/2018 19:00 , End : Planned for 22/05/2018 07:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059574:2018059574


A477 : Both directions : Milton to Upper Nash (A4075) : 21/05/18-25/05/18 0930-1530 : - (Severity: Severe)

Description : A477 : Both directions : Milton to Upper Nash (A4075) : 21/05/18-25/05/18 0930-1530 : , Traffic Control : - , Start : Planned for 21/05/2018 09:30 , End : Planned for 25/05/2018 15:30 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059698:2018059749


A483 : Both directions : Llandybie to Ammanford : Maintenance work : Road closed : 20/05/18-21/05/18 2200-0600 : - (Severity: Severe)

Description : A483 : Both directions : Llandybie to Ammanford : Maintenance work : Road closed : 20/05/18-21/05/18 2200-0600 : , Traffic Control : - , Start : Planned for 20/05/2018 22:00 , End : Planned for 21/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059700:2018059700


M4 : Westbound : J23A Magor : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0600 : - (Severity: Severe)

Description : M4 : Westbound : J23A Magor : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 24/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059821:2018059821


M4 : Westbound : J23A Magor to J24 Coldra : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0800 : - (Severity: Severe)

Description : M4 : Westbound : J23A Magor to J24 Coldra : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0800 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 24/05/2018 08:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059822:2018059822


M4 : Westbound : J24 Coldra : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0600 : - (Severity: Severe)

Description : M4 : Westbound : J24 Coldra : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 24/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059823:2018059823


M4 : Eastbound : J25A Grove Park/A4042 Improvement work : Entry slip road closed : 21/05/18-22/05/18 2000-0030 : - (Severity: Severe)

Description : M4 : Eastbound : J25A Grove Park/A4042 Improvement work : Entry slip road closed : 21/05/18-22/05/18 2000-0030 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 22/05/2018 00:30 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059824:2018059827


M4 : Westbound : J25A Grove Park/A4042 to J26 Malpas : Maintenance work : Tunnel closed : 21/05/18-23/05/18 2000-0600 : - (Severity: Severe)

Description : M4 : Westbound : J25A Grove Park/A4042 to J26 Malpas : Maintenance work : Tunnel closed : 21/05/18-23/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 23/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059828:2018059828


M4 : Westbound : J34 Miskin to J35 Pencoed : Resurfacing work : Road closed : 21/05/18-24/05/18 1930-0630 : - (Severity: Severe)

Description : M4 : Westbound : J34 Miskin to J35 Pencoed : Resurfacing work : Road closed : 21/05/18-24/05/18 1930-0630 : , Traffic Control : - , Start : Planned for 21/05/2018 19:30 , End : Planned for 24/05/2018 06:30 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059830:2018059830


M4 : Eastbound : J37 Pyle to J35 Pencoed : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0630 : - (Severity: Severe)

Description : M4 : Eastbound : J37 Pyle to J35 Pencoed : Resurfacing work : Road closed : 21/05/18-24/05/18 2000-0630 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 24/05/2018 06:30 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059831:2018059831


M4 : Eastbound : J46 Llangyfelach to J45 Ynysforgan : Maintenance work : Road closed : 21/05/18-24/05/18 2000-0630 : - (Severity: Severe)

Description : M4 : Eastbound : J46 Llangyfelach to J45 Ynysforgan : Maintenance work : Road closed : 21/05/18-24/05/18 2000-0630 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 24/05/2018 06:30 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059836:2018059836


A470 : Northbound : Nantgarw to Upper Boat : Cyclic maintenance : Road closed : 20/05/18-21/05/18 2000-0600 : - (Severity: Severe)

Description : A470 : Northbound : Nantgarw to Upper Boat : Cyclic maintenance : Road closed : 20/05/18-21/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 20/05/2018 20:00 , End : Planned for 21/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059838:2018059838


A470 : Southbound : Bridge St Interchange to Upper Boat Interchange : Maintenance work : Road closed : 21/05/18-23/05/18 2000-0600 : - (Severity: Severe)

Description : A470 : Southbound : Bridge St Interchange to Upper Boat Interchange : Maintenance work : Road closed : 21/05/18-23/05/18 2000-0600 : , Traffic Control : - , Start : Planned for 21/05/2018 20:00 , End : Planned for 23/05/2018 06:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059842:2018059844


A55 : Eastbound : J9 Treborth : Onslip closed : Cyclic maintenance : 20/05/18-21/05/18 1930-2200 : - (Severity: Severe)

Description : A55 : Eastbound : J9 Treborth : Onslip closed : Cyclic maintenance : 20/05/18-21/05/18 1930-2200 : , Traffic Control : - , Start : Planned for 20/05/2018 19:30 , End : Planned for 21/05/2018 22:00 , Severity : Severe , Authority : Welsh Government , Contact : Please direct any queries to Traffic Wales, quoting event reference RNMDA_2018059900:2018059900


Traffic updates provided by Traffic Wales