Live incidentLane closureNational Highways
M4 eastbound lane closure between J20 and J19, live incident, started Wed 7 Oct, 20:55
- Road
- M4
- Direction
- Eastbound
- Junctions
- J20 to J19
- Started
- Wed 7 Oct, 20:55
- Category
- Incident
M4 westbound slip road closure at J12, 7 Oct 2026
Live incident
This incident on the M4 is in force now. It started at 19:54 on Wed 7 Oct.
Last updated by National Highways at 20:09 on Wednesday 7 October 2026.
Closure details and map
- Status
- Live incident
- Closure type
- Slip road closure
- Category
- Incident
- Road
- M4
- Direction
- Westbound
- Junctions
- J12
- Location
- M4 J12 westbound exit
- Started
- 19:54 on Wednesday 7 October 2026
- Source
- National Highways
- Last updated by the source
- 20:09 on Wednesday 7 October 2026
Map of the M4 westbound slip road closure at J12
Use the arrow keys to move the map and the plus and minus keys to zoom.
- Live incident
Other M4 closures and crash records
21 other closures are in force on the M4 right now, and 43 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.
- Live incidentLane closureNational Highways
M4 westbound lane closure at J22, live incident, started Wed 7 Oct, 20:53
- Road
- M4
- Direction
- Westbound
- Junctions
- J22
- Started
- Wed 7 Oct, 20:53
- Category
- Incident
- Active roadworksLane closureNational Highways
M32 lane closure in both directions between J2 and J1, active roadworks, started Wed 7 Oct, 21:18
- Road
- M32 and M4
- Direction
- Both directions
- Junctions
- J2 to J1
- Started
- Wed 7 Oct, 21:18
- Expected to clear
- Thu 8 Oct, 05:00
- Category
- Road Maintenance
- Active roadworksLane closureNational Highways
M32 lane closure in both directions between J2 and J1, active roadworks, started Wed 7 Oct, 21:00
- Road
- M32 and M4
- Direction
- Both directions
- Junctions
- J2 to J1
- Started
- Wed 7 Oct, 21:00
- Expected to clear
- Thu 8 Oct, 05:00
- Category
- Road Maintenance
- Active roadworksLane closureNational Highways
M4 eastbound lane closure between J17 and J16, active roadworks, started Wed 7 Oct, 21:00
- Road
- M4
- Direction
- Eastbound
- Junctions
- J17 to J16
- Started
- Wed 7 Oct, 21:00
- Expected to clear
- Thu 8 Oct, 06:00
- Category
- Road Maintenance
- Active roadworksEntry slip road closureNational Highways
M4 eastbound entry slip road closure between J19 and J18, active roadworks, started Wed 7 Oct, 21:00
- Road
- M4
- Direction
- Eastbound
- Junctions
- J19 to J18
- Started
- Wed 7 Oct, 21:00
- Expected to clear
- Thu 8 Oct, 06:00
- Category
- Road Maintenance