The following traffic incidents and congestion for Llanharan have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:
CORYTON TO NANTGARWDescription: A470NorthboundCoryton to NantgarwCongestion
Delay: s possible :, Start time: 10/03/2026 16:12 , Expected end time: 10/03/2026 19:12, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:12
Nearest town: 7.72 miles from Llanharan.
CLEARED @ 18:30 J32 CORYTONDescription: M4EastboundJ32 (Cardiff) CorytonoffslipCongestion
Delay: s possible :, Start time: 10/03/2026 16:46 , Expected end time: 10/03/2026 19:46, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:46
Nearest town: 8.5 miles from Llanharan.
CLEARED @ 18:30 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: 14.4 miles from Llanharan.
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: 18.61 miles from Llanharan.
CLEARED @ 17:42 J32 CORYTONDescription: M4EastboundJ32 (Cardiff) CorytonoffslipCongestion
Delay: s possible :, Start time: 10/03/2026 16:46 , Expected end time: 10/03/2026 19:46, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:46
Nearest town: 8.5 miles from Llanharan.
CLEARED @ 16:54 A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERNDescription: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestion
Delay: s possible :, Start time: 10/03/2026 15:28 , Expected end time: 10/03/2026 19:28, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 15:28
Nearest town: 7.48 miles from Llanharan.
CLEARED @ 16:42 CORYTON TO NANTGARWDescription: A470NorthboundCoryton to NantgarwCongestion
Delay: s possible :, Start time: 10/03/2026 16:12 , Expected end time: 10/03/2026 19:12, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:12
Nearest town: 7.72 miles from Llanharan.
CLEARED @ 16:42 TAFF'S WELL TO CORYTON INTERCHANGEDescription: A470SouthboundTaffs Well to Coryton InterchangeCongestion
Delay: s possible :, Start time: 10/03/2026 16:18 , Expected end time: 10/03/2026 19:18, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:18
Nearest town: 8.13 miles from Llanharan.
CLEARED @ 16:42 CORYTON TO NANTGARWDescription: A470NorthboundCoryton to NantgarwCongestion
Delay: s possible :, Start time: 10/03/2026 16:12 , Expected end time: 10/03/2026 19:12, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 16:12
Nearest town: 7.72 miles from Llanharan.
CLEARED @ 16:18 A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERNDescription: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestion
Delay: s possible :, Start time: 10/03/2026 15:28 , Expected end time: 10/03/2026 19:28, Severity: Moderate, Source: Welsh Government, Last updated: 10/03/2026 15:28
Nearest town: 7.48 miles from Llanharan.
CLEARED @ 15:42 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: 13.73 miles from Llanharan.
CLEARED @ 14:54 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: 16.95 miles from Llanharan.
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: 16.95 miles from Llanharan.
CLEARED @ 16:42 CEFN COED TO DOWLAIS TOPDescription: A465EastboundCefn Coed to Dowlais TopIncidentIncidentClosed
Delay: s possible :, Start time: 10/03/2026 16:06 , Expected end time: 10/03/2026 17:06, Severity: Road closure, Source: Welsh Government, Last updated: 10/03/2026 16:06
Nearest town: 15.95 miles from Llanharan.
CLEARED @ 16:18 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: 17.77 miles from Llanharan.
CLEARED @ 14:54 J36 SARNDescription: M4EastboundJ36 (Bridgend) SarnCyclic maintenanceOnslip closedDiversions in place02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 02/03/2026 20:00
Nearest town: 5.93 miles from Llanharan.
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: 12.21 miles from Llanharan.
CLEARED @ 14:54 J26 MALPAS TO J28 TREDEGAR PARKDescription: M4EastboundJ26 (Newport) Malpas to J28 (Newport) Tredegar ParkResurfacing workRoad closedDiversions in place09/03/26-13/03/26 2000-0600 :, Start time: 09/03/2026 20:00 , End Date: 13/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 20:00
Nearest town: 17.79 miles from Llanharan.
CLEARED @ 14:54 RHYMNEYDescription: A465EastboundRhymneyResurfacing workRoad closedDiversions in place09/03/26-13/03/26 2000-0600 :, Start time: 09/03/2026 20:00 , End Date: 13/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 20:00
Nearest town: 17.42 miles from Llanharan.
CLEARED @ 14:54 TAFF'S WELLDescription: A470NorthboundTaffs WellResurfacing workEntry slip road 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: 7.84 miles from Llanharan.
CLEARED @ 14:54 TAFF'S WELL TO NANTGARWDescription: A470NorthboundTaffs Well to NantgarwResurfacing workRoad closedDiversions in place10/03/26-11/03/26 2000-0600 :, Start time: 10/03/2026 20:00 , End Date: 11/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:04
Nearest town: 7.49 miles from Llanharan.
CLEARED @ 14:54 NANTGARW TO TAFF'S WELLDescription: A470SouthboundNantgarw to Taffs WellRoadworksRoad closedDiversions in place11/03/26-12/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:05
Nearest town: 7.49 miles from Llanharan.
CLEARED @ 14:54 ABERCYNON TO PENTREBACHDescription: A470NorthboundAbercynon to PentrebachResurfacing workRoad 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 12:06
Nearest town: 10.71 miles from Llanharan.
CLEARED @ 14:54 CEFN COED TO MERTHYR TYDFILDescription: A470NorthboundCefn coed to Merthyr TydfilRoadworksRoad closedDiversions in place10/03/26-11/03/26 2000-0600 :, Start time: 10/03/2026 20:00 , End Date: 11/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:07
Nearest town: 14.98 miles from Llanharan.
CLEARED @ 14:54 M4 J29A ST MELLONS TO M4 J29 CASTLETONDescription: A48MEastboundM4 J29A St Mellons to M4 J29 CastletonRoadworksRoad closedDiversions in place09/03/26-12/03/26 2000-0600 :, Start time: 09/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 20:00
Nearest town: 15.16 miles from Llanharan.
CLEARED @ 14:54 J28 TREDEGAR PARK TO J26 MALPASDescription: M4EastboundJ28 (Newport) Tredegar Park to J26 (Newport) MalpasResurfacing workRoad closedDiversions in place09/03/26-14/03/26 2000-0600 :, Start time: 09/03/2026 20:00 , End Date: 14/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 09/03/2026 20:00
Nearest town: 17.79 miles from Llanharan.
CLEARED @ 14:54 J35 PENCOED TO J37 PYLEDescription: M4WestboundJ35 (Pen-coed) Pencoed to J37 (Porthcawl) PyleRoadworksRoad closedDiversions in place11/03/26-12/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:18
Nearest town: 6.55 miles from Llanharan.
CLEARED @ 14:54 J35 PENCOEDDescription: M4WestboundJ35 (Pen-coed) PencoedRoadworksEntry slip road closedDiversions in place11/03/26-12/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:19
Nearest town: 3.18 miles from Llanharan.
CLEARED @ 14:54 J36 SARNDescription: M4EastboundJ36 (Bridgend) SarnRoadworksEntry slip road closedDiversions in place02/03/26-21/03/26 2000-0600 :, Start time: 02/03/2026 20:00 , End Date: 21/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:20
Nearest town: 5.93 miles from Llanharan.
CLEARED @ 14:54 J36 SARNDescription: M4WestboundJ36 (Bridgend) SarnResurfacing workEntry slip road closedDiversions in place11/03/26-12/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:21
Nearest town: 5.93 miles from Llanharan.
CLEARED @ 14:54 J37 PYLE TO J36 SARNDescription: M4EastboundJ37 (Porthcawl) Pyle to J36 (Bridgend) SarnResurfacing workRoad closedDiversions in place11/03/26-12/03/26 2000-0600 :, Start time: 11/03/2026 20:00 , End Date: 12/03/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 06/03/2026 12:22
Nearest town: 8.33 miles from Llanharan.
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: 12.21 miles from Llanharan.
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: 14.61 miles from Llanharan.
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: 18.27 miles from Llanharan.
CLEARED @ 14:54