Current traffic around Marcross
The following traffic incidents and congestion for Marcross have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:
ST FAGANS TO M4 J33 CAPEL LLANILLTERNDescription: A4232NorthboundSt Fagans to M4 J33 Capel LlanillternCongestion
Delay: s possible :, Start time: 25/04/2026 14:21 , Expected end time: 25/04/2026 16:21, Severity: Moderate, Source: Welsh Government, Last updated: 25/04/2026 14:21
Nearest town: 12.24 miles from Marcross.
CLEARED @ 14:30 J38 MARGAM TO J41 PENTYLA/BAGLANDescription: M4WestboundJ38 (Port Talbot) Margam to J41 (Port Talbot) Pentyla/BaglanRoadworksRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:40
Nearest town: 15.13 miles from Marcross.
CLEARED @ 12:06 J39 GROESDescription: M4WestboundJ39 GroesEntry slip road closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:41
Nearest town: 13.91 miles from Marcross.
CLEARED @ 12:06 J40 TAIBACHDescription: M4WestboundJ40 (Port Talbot) TaibachEntry slip road closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:43
Nearest town: 15.74 miles from Marcross.
CLEARED @ 12:06 J40 TAIBACH TO J41 PENTYLA/BAGLANDescription: M4EastboundJ40 (Port Talbot) Taibach to J41 (Port Talbot) Pentyla/BaglanResurfacing workRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:44
Nearest town: 16.32 miles from Marcross.
CLEARED @ 12:06
There are no current incidents in this location.