Live incidentLane closureNational Highways
M4 westbound lane closure between J7 and J8, live incident, started Wed 7 Oct, 05:48
- Road
- M4
- Direction
- Westbound
- Junctions
- J7 to J8
- Started
- Wed 7 Oct, 05:48
- Category
- Incident
M4 eastbound lane closure between J15 and J14, 6 Oct 2026
Cleared
This roadworks closure on the M4 has cleared. It started at 21:35 on Tue 6 Oct and cleared at 03:35 on Wed 7 Oct.
Last updated by National Highways at 03:28 on Wednesday 7 October 2026.
Closure details and map
- Status
- Cleared
- Closure type
- Lane closure
- Category
- Road Maintenance
- Road
- M4
- Direction
- Eastbound
- Junctions
- J15 to J14
- Location
- M4 eastbound between J15 and J14
- Lanes
- 2 of 4 lanes closed
- Started
- 21:35 on Tuesday 6 October 2026
- Cleared
- 03:35 on Wednesday 7 October 2026
- Details
- M4 eastbound lane 1 and 2 closure (106/5 to 105/6)
- Source
- National Highways
- Last updated by the source
- 03:28 on Wednesday 7 October 2026
Map of the M4 eastbound lane closure between J15 and J14
Use the arrow keys to move the map and the plus and minus keys to zoom.
- Cleared
Other M4 closures and crash records
9 other closures are in force on the M4 right now, and 41 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 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
- Active roadworksEntry slip road closureTraffic Wales
M4 westbound entry slip road closure from J23A Magor to J24 Coldra, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Westbound
- Junctions
- J23A to J24
- Area
- J23A Magor to J24 Coldra
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Fri 9 Oct, 06:00
- Category
- Surveys
- Active roadworksExit slip road closureTraffic Wales
M4 westbound exit slip road closure at J24 Coldra, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Westbound
- Junctions
- J24
- Area
- J24 Coldra
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Fri 9 Oct, 06:00
- Category
- Surveys
- Active roadworksSlip road closureTraffic Wales
M4 westbound slip road closure from J38 Margam to J39 Groes, active roadworks, started Mon 5 Oct, 20:00
- Road
- M4
- Direction
- Westbound
- Junctions
- J38 to J39
- Area
- J38 Margam to J39 Groes
- Started
- Mon 5 Oct, 20:00
- Expected to clear
- Sat 10 Oct, 06:00
- Category
- Clearance Work