M25 crash J15 anticlockwise

Crash on the M25 anticlockwise at J15 on Saturday 31 October 2026, from 10:52. Cleared at 17:12 after 6 h 19 min. Timeline of reports from TomTom and the motorway signs.

Status

Cleared 17:12 on 31 Oct 2026, after 6 h 19 min

Location

M25 anticlockwise · J15

Reported as

Collision

At its worst

Stationary traffic · delay ~35 min

Sources

TomTom ×10 · Motorway signs ×4

Timeline

1. Sat 10:52 TomTom: queueing traffic, “Slow traffic”, delay ~7 min
2. Sat 11:43 TomTom: queueing traffic, “Queuing traffic”, delay ~8 min
3. Sat 11:53 TomTom: queueing traffic, “Slow traffic”, delay ~8 min (reported again)
4. Sat 11:53 TomTom: queueing traffic, “Stationary traffic”, delay ~8 min
5. Sat 11:57 Motorway signs: “COLLISION SLOW DOWN”
6. Sat 11:58 TomTom: “Queuing traffic”
7. Sat 11:58 TomTom: now says collision, “Stationary traffic, Accident”
8. Sat 12:02 TomTom: delay now ~21 min (was ~12)
9. Sat 12:07 TomTom: “Slow traffic”
10. Sat 12:17 TomTom: now says queueing traffic, “Stationary traffic”
11. Sat 12:19 Motorway signs no longer show “COLLISION SLOW DOWN”
12. Sat 12:22 TomTom: “Queuing traffic”
13. Sat 12:42 TomTom: delay now ~14 min (was ~20), “Queuing traffic”
14. Sat 12:47 TomTom: “Slow traffic”
15. Sat 13:02 TomTom: queueing traffic, “Queuing traffic”, delay ~10 min
16. Sat 13:12 TomTom: “Slow traffic”
17. Sat 13:23 TomTom: queueing traffic, “Slow traffic”, delay ~7 min
18. Sat 13:28 TomTom: “Stationary traffic”
19. Sat 13:31 Motorway signs: “REPORT OF DEBRIS”
20. Sat 13:33 TomTom: “Queuing traffic”
21. Sat 13:38 TomTom: “Stationary traffic”
22. Sat 13:48 TomTom: “Queuing traffic”
23. Sat 14:03 TomTom: “Stationary traffic”
24. Sat 14:07 TomTom: “Queuing traffic”
25. Sat 14:08 Motorway signs no longer show “REPORT OF DEBRIS”
26. Sat 14:12 TomTom: queueing traffic, “Slow traffic”, delay ~3 min (reported again)
27. Sat 14:17 TomTom: queueing traffic, “Queuing traffic”, delay ~19 min
28. Sat 14:37 TomTom: queueing traffic, “Queuing traffic”, delay ~21 min
29. Sat 14:43 TomTom: queueing traffic, “Stationary traffic”, delay ~17 min
30. Sat 15:02 TomTom: “Queuing traffic”
31. Sat 15:22 TomTom: “Slow traffic”
32. Sat 15:47 TomTom: “Queuing traffic”
33. Sat 15:52 TomTom: “Slow traffic”
34. Sat 15:57 TomTom: “Queuing traffic”
35. Sat 16:02 TomTom: “Slow traffic”
36. Sat 16:27 TomTom: “Queuing traffic”
37. Sat 16:29 Motorway signs: “REPORT OF PEDESTRIANS”
38. Sat 16:31 TomTom: “Slow traffic”
39. Sat 16:37 TomTom: queueing traffic, “Queuing traffic”, delay ~5 min
40. Sat 16:47 TomTom: “Slow traffic”
41. Sat 16:52 TomTom no longer reports it
42. Sat 16:56 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
43. Sat 16:57 TomTom: queueing traffic, “Slow traffic”, delay ~5 min (reported again)
44. Sat 16:58 Motorway signs no longer show “REPORT OF PEDESTRIANS”
45. Sat 17:12 TomTom no longer reports it
46. Sat 17:12 All clear: no source reports it any more

Source reports

• Queuing traffic
• Slow traffic
• Overhead signs read “COLLISION SLOW DOWN” (2 signs; furthest along: M25 anti-clockwise within J15).
• Overhead signs read “REPORT OF DEBRIS” (4 signs; furthest along: M25 clockwise within J14).
• Overhead signs read “REPORT OF PEDESTRIANS” (4 signs; furthest along: M25 clockwise between J14 and J15).
• Overhead signs read “REPORT OF PEDESTRIANS” (2 signs; furthest along: link road from M4 J4B to M25 J15 anti-clockwise).

Other recent incidents on the M25

• M25 crash J27–J26 anticlockwiseyesterday 19:13 · cleared after 1 h 9 min
• M25 crash J25–J26 clockwiseyesterday 19:12 · cleared after 1 h 9 min
• M25 reported crash J5 clockwiseyesterday 18:40 · cleared after 42 min
• M25 crash J5–J6 clockwiseyesterday 17:35 · cleared after 1 h 16 min
• M25 crash J5–J6 clockwiseyesterday 17:25 · cleared after 1 h 26 min
• M25 stopped traffic J30yesterday 17:06 · cleared after 1 h 4 min
• M25 crash J21A–J22 clockwiseyesterday 16:40 · cleared after 52 min
• M25 crash J30–J29 anticlockwiseyesterday 09:43 · cleared after 1 h 36 min
• M25 reported crash J27 anticlockwiseyesterday 08:38 · cleared after 41 min
• M25 stopped traffic J3–J2yesterday 07:02 · cleared after 5 h 16 min

Live traffic and past incidents at M25 J15.

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.