The following traffic incidents and congestion for Llangennech have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:
J39 GROES TO J41 PENTYLA/BAGLANDescription: M4WestboundJ39 Groes to J41 (Port Talbot) Pentyla/BaglanCongestion
Delay: s possible :, Start time: 10/03/2026 17:41 , Expected end time: 10/03/2026 20:41, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 17:41
Nearest town: 15.8 miles from Llangennech.
CLEARED @ 17:54 J42 EARLSWOOD TO J43 LLANDARCYDescription: M4WestboundJ42 (Swansea) Earlswood to J43 (Neath) LlandarcyCongestion
Delay: s possible :, Start time: 10/03/2026 17:28 , Expected end time: 10/03/2026 20:28, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 17:28
Nearest town: 11.43 miles from Llangennech.
CLEARED @ 17:42 J37 PYLE TO J42 EARLSWOODDescription: M4Both directionsJ37 (Porthcawl) Pyle to J42 (Swansea) EarlswoodCyclic maintenance1 lane closed on M4Entry/Exit slip roads closedDiversions in place25/01/26-01/04/26 2000-0600 :, Start time: 25/01/2026 20:00 , End Date: 01/04/2026 6:00, Severity: Moderate, Source: Welsh Government, Last updated: 25/01/2026 20:00
Nearest town: 16.62 miles from Llangennech.
CLEARED @ 14:54 TYCROESDescription: A483Both directionsTycroes09/03/26-17/03/26 0900-1500Resurfacing work10mph convoySlow moving vehicles
Delay: s, Start time: 09/03/2026 9:00 , End Date: 17/03/2026 15:00, Severity: Moderate, Source: Welsh Government, Last updated: 09/03/2026 9:00
Nearest town: 7.01 miles from Llangennech.
CLEARED @ 14:54 TYCROESDescription: A483Both directionsTycroes09/03/26-17/03/26 1900-2300Resurfacing work10mph convoySlow moving vehicles
Delay: s, Start time: 09/03/2026 19:00 , End Date: 17/03/2026 23:00, Severity: Moderate, Source: Welsh Government, Last updated: 09/03/2026 19:00
Nearest town: 7.01 miles from Llangennech.
CLEARED @ 14:54 TUA'R GORLLEWINDisgrifiad: M4Wedi clirioTuar GorllewinC42 Earlswood i G43 Llandarsi, Amser y digwyddiad: 10/03/2026 17:52 , Amser gorffen a ragwelir: 10/03/2026 17:57, Difrifoldeb: Cymedrol, Ffynhonnell: Llywodraeth Cymru, Diweddarwyd ddiwethaf: 10/03/2026 17:52
Nearest town: 11.43 miles from Llangennech.
CLEARED @ 19:06 J41 PENTYLA/BAGLAN TO J42 EARLSWOODDescription: M4EastboundJ41 (Port Talbot) Pentyla/Baglan to J42 (Swansea) Earlswood16/03/26-24/03/26 2000-0600 :, Start time: 16/03/2026 20:00 , Expected end time: 24/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 17:04
Nearest town: 13.07 miles from Llangennech.
CLEARED @ 18:30 J41 PENTYLA/BAGLAN TO J42 EARLSWOODDescription: M4EastboundJ41 (Port Talbot) Pentyla/Baglan to J42 (Swansea) Earlswood16/03/26-24/03/26 2000-0600 :, Start time: 16/03/2026 20:00 , Expected end time: 24/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 17:04
Nearest town: 13.07 miles from Llangennech.
CLEARED @ 16:42 ABERDULAIS TO NEATHDescription: A465WestboundAberdulais to NeathRoadworksRoad closedDiversions in place11/03/26-13/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 13/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:00
Nearest town: 12.87 miles from Llangennech.
CLEARED @ 14:54 J37 PYLE TO J38 MARGAMDescription: M4WestboundJ37 (Porthcawl) Pyle to J38 (Port Talbot) MargamResurfacing workRoad closedDiversions in place08/03/26-14/03/26 2000-0600 :, Start time: 08/03/2026 20:00 , End Date: 14/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 08/03/2026 20:00
Nearest town: 19.32 miles from Llangennech.
CLEARED @ 14:54 J38 MARGAM TO J37 PYLEDescription: M4EastboundJ38 (Port Talbot) Margam to J37 (Porthcawl) PyleRoadworksRoad closedDiversions in place08/03/26-14/03/26 2000-0600 :, Start time: 08/03/2026 20:00 , End Date: 14/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 08/03/2026 20:00
Nearest town: 19.32 miles from Llangennech.
CLEARED @ 14:54 J40 TAIBACHDescription: M4EastboundJ40 (Port Talbot) TaibachRoadworksExit slip road closedDiversions in place02/03/26-21/03/26 0600 :, Start time: 02/03/2026 6:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:26
Nearest town: 15.56 miles from Llangennech.
CLEARED @ 14:54 J42 EARLSWOODDescription: M4EastboundJ42 (Swansea) EarlswoodRoadworksEntry slip road closedDiversions in place12/03/26-14/03/26 2000-0600 :, Start time: 12/03/2026 20:00 , End Date: 14/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:27
Nearest town: 11.74 miles from Llangennech.
CLEARED @ 14:54