Live incidentLane closureNational Highways
M4 westbound lane closure between J19 and J20, live incident, started Wed 7 Oct, 11:39
- Road
- M4
- Direction
- Westbound
- Junctions
- J19 to J20
- Started
- Wed 7 Oct, 11:39
- Category
- Incident
M4 eastbound congestion from J27 High Cross to J24 Coldra, 7 Oct 2026
Cleared
This incident on the M4 has cleared. It started at 07:28 on Wed 7 Oct and cleared at 09:40 on Wed 7 Oct.
Last updated by Traffic Wales at 07:28 on Wednesday 7 October 2026.
Closure details and map
- Status
- Cleared
- Closure type
- Congestion
- Road
- M4
- Direction
- Eastbound
- Junctions
- J27 to J24
- Location
- J27 High Cross to J24 Coldra
- Started
- 07:28 on Wednesday 7 October 2026
- Cleared
- 09:40 on Wednesday 7 October 2026
- Details
- Congestion, delays possible
- Source
- Traffic Wales
- Last updated by the source
- 07:28 on Wednesday 7 October 2026
Map of the M4 eastbound congestion from J27 High Cross to J24 Coldra
Use the arrow keys to move the map and the plus and minus keys to zoom.
- Cleared
Other M4 closures and crash records
12 other closures are in force on the M4 right now, and 40 more are planned in the next 7 days.
The M4 accident statistics from 1979 to 2025 record 29,200 collisions on the road, 724 of them fatal.
- Active roadworksExit slip road closureNational Highways
M4 eastbound exit slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Eastbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksEntry slip road closureNational Highways
M4 westbound entry slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Westbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksExit slip road closureNational Highways
M4 westbound exit slip road closure at J17, active roadworks, started Wed 7 Oct, 09:30
- Road
- M4
- Direction
- Westbound
- Junctions
- J17
- Started
- Wed 7 Oct, 09:30
- Expected to clear
- Wed 7 Oct, 15:30
- Category
- Authority Operation
- Active roadworksRoad closureTraffic Wales
M4 road closure in both directions between J25A and J27, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Both directions
- Junctions
- J25A to J27
- Area
- J25A Grove Park to J27 High Cross
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Sat 10 Oct, 06:00
- Category
- Carriageway Maintenance
- Active roadworksEntry slip road closureTraffic Wales
M4 eastbound entry slip road closure between J24 and J22, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Eastbound
- Junctions
- J24 to J22
- Area
- J24 Coldra to J22 Pilning/Prince of Wales Bridge
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Fri 9 Oct, 06:00
- Category
- Surveys