M23 crash J9–J8 northbound

Cleared Cleared at 07:19 on 9 Oct 2026, after 390 h 56 min.

Crash on the M23 northbound at J9–J8 on Wednesday 23 September 2026, from 00:22. Cleared at 07:19 after 390 h 56 min. Timeline of reports from the motorway signs, TomTom and National Highways.

1. !

   M23 northbound · J9–J8

   Collision

   2 of 4 lanes closed · Wed 00:22–07:19 (cleared after 390 h 56 min) · delay ~26 min · queue 3.3 mi

   Motorway signs ×2 · TomTom ×3 · National Highways ×6

See the M23 on the live map M23 traffic now

Timeline

1. Wed 00:16 Motorway signs: “REPORT OF OBSTRUCTION”
2. Wed 00:53 Motorway signs no longer show “REPORT OF OBSTRUCTION”
3. Wed 00:53 All clear: no source reports it any more
4. Thu 06:03 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
5. Thu 13:35 Motorway signs no longer show “REPORT OF OBSTRUCTION”
6. Thu 13:35 All clear: no source reports it any more
7. Sat 10:46 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
8. Sat 11:16 Motorway signs no longer show “REPORT OF OBSTRUCTION”
9. Sat 11:16 All clear: no source reports it any more
10. Mon 10:05 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
11. Mon 10:36 Motorway signs no longer show “REPORT OF OBSTRUCTION”
12. Mon 10:36 All clear: no source reports it any more
13. Mon 19:38 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
14. Tue 01:09 Motorway signs no longer show “REPORT OF OBSTRUCTION”
15. Tue 01:09 All clear: no source reports it any more
16. Wed 05:15 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
17. Wed 13:17 Motorway signs no longer show “REPORT OF OBSTRUCTION”
18. Wed 13:17 All clear: no source reports it any more
19. Wed 13:47 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
20. Wed 20:19 Motorway signs no longer show “REPORT OF OBSTRUCTION”
21. Wed 20:19 All clear: no source reports it any more
22. Tue 16:30 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
23. Tue 17:00 Motorway signs no longer show “REPORT OF OBSTRUCTION”
24. Tue 17:00 All clear: no source reports it any more
25. yesterday 16:56 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
26. 06:11 Motorway signs: “COLLISION”
27. 06:12 National Highways: 2 of 4 lanes closed
28. 06:18 TomTom: collision, “Accident, Lane closed”
29. 06:28 TomTom no longer reports it
30. 06:33 National Highways: 1 of 4 lanes closed
31. 06:33 National Highways: 1 of 4 lanes closed
32. 06:33 National Highways: 2 of 4 lanes closed
33. 06:36 Motorway signs no longer show “REPORT OF OBSTRUCTION”
34. 06:37 TomTom: collision, “Slow traffic, Accident”, delay ~3 min
35. 06:41 TomTom: delay now ~19 min (was ~3), “Stationary traffic, Accident”
36. 06:46 TomTom: delay now ~28 min (was ~19)
37. 06:55 TomTom: queueing traffic, “Stationary traffic”, delay ~11 min
38. 07:00 TomTom: delay now ~4 min (was ~11), “Slow traffic”
39. 07:04 TomTom no longer reports it
40. 07:06 Motorway signs no longer show “COLLISION”
41. 07:19 National Highways: lane closure lifted
42. 07:19 All clear: no source reports it any more

What the sources said

• Overhead signs read “REPORT OF OBSTRUCTION” (1 sign; furthest along: M23 northbound between J9 and J8).
• Accident, Lane closed
• Overhead signs read “COLLISION” (3 signs; furthest along: M23 northbound between J9 and J8).
• Stationary traffic, Accident
• M23 northbound between J9 and J8
• Slow traffic

Other recent incidents on the M23

• M23 crash J8–J9 southbound · 1 Oct 2026 14:31, cleared after 1 h 23 min
• M23 crash J9–J8 southbound · 27 Sept 2026 13:05, cleared after 55 min
• M23 reported crash J8 northbound · 24 Sept 2026 11:44, cleared after 1 h 51 min
• M23 crash J10–J9 northbound · 23 Sept 2026 13:45, cleared after 41 min
• M23 closed J7 · 22 Sept 2026 22:53, cleared after 2 h 36 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.