No accidents or other live incidents are reported on the M4 right now. 5 roadworks closures are in force.
53 closures are planned in the next 7 days, the first starting at 09:30 on Mon 28 Sep.
Closure data as of 05:40 on Monday 28 September 2026, checked every 5 minutes.
The map shows 5 closures in force now, 53 planned in the next 7 days and 12 cleared most recently. Lines cover the stretch of road each closure affects, and dots mark closures reported at a single point.
Map of closures on the M4
Use the arrow keys to move the map and the plus and minus keys to zoom.
No accidents or other live incidents are reported on the M4 right now.
5 roadworks closures are in force on the M4, most recently started first.
53 closures are planned in the next 7 days, grouped by the day they start. 17 more are booked for the week after.
These are the 12 most recent of the 56 closures on the M4 that cleared in the last 3 days.
Closures stay on this page for 3 days after they clear, then move to the road closure archive, which lists every cleared closure on motorways and major A roads, newest first.
The M4 accident statistics from 1979 to 2025 record 29,200 collisions on the road, 724 of them fatal.