M4 delays Westbound

Cleared Cleared at 20:45 on 9 Oct 2026, after 6 h 59 min.

Long delays on the M4 at Westbound on Friday 9 October 2026, from 13:46. Cleared at 20:45 after 6 h 59 min. Timeline of reports from TomTom and Traffic Wales.

1. ?

   M4 · Westbound

   Incident

   13:46–20:45 (cleared after 6 h 59 min) · delay ~22 min · queue 8.6 mi

   TomTom · Traffic Wales

See the M4 on the live map M4 traffic now

Timeline

1. 13:46 TomTom: queueing traffic, “Stationary traffic”, delay ~38 min
2. 13:51 TomTom no longer reports it
3. 13:51 All clear: no source reports it any more
4. 13:52 TomTom: queueing traffic, “Stationary traffic”, delay ~36 min (reported again)
5. 14:01 TomTom no longer reports it
6. 14:04 TomTom: queueing traffic, “Stationary traffic”, delay ~41 min (reported again)
7. 14:18 TomTom: delay now ~73 min (was ~54)
8. 15:29 Traffic Wales: queueing traffic
9. 15:42 TomTom no longer reports it
10. 15:43 TomTom: queueing traffic, “Stationary traffic”, delay ~64 min (reported again)
11. 15:51 TomTom: delay now ~30 min (was ~65)
12. 15:55 TomTom: delay now ~68 min (was ~30)
13. 16:14 TomTom: delay now ~32 min (was ~81)
14. 16:28 TomTom: delay now ~88 min (was ~38)
15. 17:37 TomTom: delay now ~22 min (was ~58), “Queuing traffic”
16. 17:47 TomTom no longer reports it
17. 17:47 TomTom: queueing traffic, “Queuing traffic”, delay ~22 min (reported again)
18. 18:00 TomTom: “Stationary traffic”
19. 19:05 TomTom no longer reports it
20. 19:09 TomTom: queueing traffic, “Stationary traffic”, delay ~29 min (reported again)
21. 19:14 TomTom no longer reports it
22. 19:18 TomTom: queueing traffic, “Queuing traffic”, delay ~22 min (reported again)
23. 19:23 TomTom no longer reports it
24. 19:35 Traffic Wales no longer reports it
25. 19:35 All clear: no source reports it any more
26. 20:15 Traffic Wales: incident (reported again)
27. 20:25 Traffic Wales no longer reports it
28. 20:25 All clear: no source reports it any more
29. 20:35 Traffic Wales: incident (reported again)
30. 20:45 Traffic Wales no longer reports it
31. 20:45 All clear: no source reports it any more

What the sources said

• Queuing traffic
• M4 : Now clear : Westbound : J22 Pilning/Prince of Wales Bridge to J23A Magor

Other recent incidents on the M4

• M4 crash J8–J7 eastbound · 20:12, cleared after 1 h 50 min
• M4 reported crash J15–J14 eastbound · 19:27, cleared after 43 min
• M4 stopped traffic J20–J19 · 15:47, cleared after 1 h 10 min
• M4 crash J11–J12 westbound · 15:06, still reported
• M4 crash J8–J10 westbound · 12:30, cleared after 2 h 45 min
• M4 reported crash J12–J11 eastbound · 06:27, cleared after 40 min
• M4 stopped traffic J3–J2 · yesterday 06:44, cleared after 3 h 26 min
• M4 reported crash J14–J15 westbound · Wed 14:02, cleared after 46 min
• M4 closed J13–J14 westbound · Tue 20:53, cleared after 7 h 12 min
• M4 closed J12–J13 westbound · Tue 20:53, cleared after 7 h 12 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.