Driving conditions across large parts of Wales are expected to be poor throughout most of Saturday, especially later in the afternoon and into the evening, so it’s essential that motorists are aware of road closures across the country.
As of Saturday morning, there were no major issues affecting the M4 in south Wales, or the A470 or A48. However, there is one lane closed on each side of the Prince of Wales Bridge, an A-road in Rhondda Cynon Taf continues to be shut due to long-term roadworks, and Andrew Road in Penarth was closed early on Saturday after two vehicle fires but has since re-opened.
Meanwhile, Traffic Wales has asked people to “please take extra care if you’re travelling this weekend, as there are weather warnings for snow and ice”. You can read much more about those warnings here. For the latest Welsh news delivered to your inbox sign up to our newsletter.
Below is a list of road closures and part closures/disruptions affecting roads in Wales on Saturday (according to traffic monitoring service Inrix):
- M4 PRINCE OF WALES BRIDGE – MONMOUTHSHIRE – BOTH DIRECTIONS – BRISTOL – One lane closed due to resurfacing work and contraflow on M4 Prince of Wales Bridge in both directions between J22 M49 and J23 M48. One lane shut on each side with Wales-bound traffic running through a contraflow. There will be some overnight closures. Until 30th May.
- A4054 UPPER HIGH STREET – CEFN COED – BOTH DIRECTIONS – RHONDDA, CYNON, TAFF – A4054 Upper High Street in both directions closed due to long-term roadworks from A465 Heads Of The Valleys Road to Vaynor Road. Until 31st December 2025.
- A465 HEADS OF THE VALLEYS ROAD – RHIGOS – BOTH DIRECTIONS – RHONDDA, CYNON, TAFF – Narrow lanes and speed restriction of 40 mph due to long-term roadworks on A465 Heads Of The Valleys Road in both directions from A4061 Rhigos Road (Rhigos Roundabout) to High Street (Dowlais Top Roundabout). As part of the Section 5 and 6 Project. Until January 2026.
- A465 HEADS OF THE VALLEYS ROAD – MERTHYR TYDFIL – Lane closed due to long-term roadworks on A465 Heads Of The Valleys Road at High Street (Dowlais Top Roundabout). Expect delays. Until 24th July.
- A5 HOLYHEAD ROAD – MENAI BRIDGE – WESTBOUND – ISLE OF ANGLESEY – Narrow lanes due to roadworks on A5 Holyhead Road Westbound from The Telephone Exchange to Menai Bridge Viewpoint. The layby opposite the Telephone Exchange is also closed. Until 16th April 2025.
- A4067 MUMBLES ROAD – BRYNMILL – EASTBOUND – SWANSEA – One lane closed due to gas main work on A4067 Mumbles Road Eastbound between A4216 Sketty Lane and Brynmill Lane. Expect delays. Until January 2025.
- B5429 – BODFARI – BOTH DIRECTIONS – DENBIGHSHIRE – B5429 in both directions closed due to roadworks from Ffynnon Y Chwarel (Bodfari) to Heol-Y-Brenin (Tremeirchion). Until October 2025.
- B4368 – ABERMULE – POWYS – B4368 closed due to roadworks from B4386 (Abermule) to A489 (Glanmule). Until August 2025.
- B5605 PARK ROAD – PENTRE – WREXHAM – Park Road closed due to roadworks from A5 to The Newbridge Arms. Until July 2025.
- B4501 – FRONGOCH – NORTHBOUND – GWYNEDD – B4501 Northbound closed due to roadworks from A4212 (Frongoch) to A5 (Cerrigydrudion). Until 20th May 2025.
- B4501 – DENBIGH – DENBIGHSHIRE – B4501 closed due to roadworks from Prion Road (Denbigh) to Nantglyn turn off (Lawnt). Until March 2025.
- THE A487 – CROSS FOXES INN – BOTH DIRECTIONS – GWYNEDD – Temporary traffic lights due to roadworks on The A487 in both directions from the A470 (Cross Foxes, Cross Foxes Inn) to Pantperthog (Machynlleth). Unstable ground has been found on the A487. The road was previously closed but is now open under temporary traffic lights. Until 1st February.
- THE A4093 – BRYN GOLAU – BOTH DIRECTIONS – RHONDDA, CYNON, TAFF – Temporary traffic lights due to water main work on The A4093 in both directions at The B4278 / Mountain View. Until November 2025.
- THE A40 – LLANDOVERY – BOTH DIRECTIONS – CARMARTHENSHIRE – Temporary traffic lights due to long-term roadworks on The A40 in both directions between Halfway and Llandovery. Expect delays. There will be some weekend and evening closures and a single lane closure using temporary traffic lights. Until 6th May 2025.