M25 crash J16–J15 anticlockwise

Crash on the M25 anticlockwise at J16–J15 on Monday 19 October 2026, from 16:21. Cleared at 20:12 after 3 h 51 min. Timeline of reports from TomTom and the motorway signs.

Status

Cleared 20:12 on 19 Oct 2026, after 3 h 51 min

Location

M25 anticlockwise · J16–J15

Reported as

Collision

At its worst

Stationary traffic

Sources

TomTom ×11 · Motorway signs ×3

Timeline

1. 16:21 TomTom: queueing traffic, “Slow traffic”, delay ~3 min
2. 16:26 TomTom: queueing traffic, “Slow traffic”, delay ~7 min
3. 16:44 TomTom: queueing traffic, “Slow traffic”, delay ~7 min
4. 16:49 TomTom: delay now ~34 min (was ~7), “Queuing traffic”
5. 16:53 TomTom: queueing traffic, “Queuing traffic”, delay ~34 min
6. 17:03 TomTom: queueing traffic, “Stationary traffic”, delay ~27 min
7. 17:11 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
8. 17:16 TomTom: “Stationary traffic”
9. 17:21 TomTom: “Queuing traffic”
10. 17:25 TomTom: “Stationary traffic”
11. 17:34 TomTom: “Queuing traffic”
12. 17:43 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
13. 17:53 TomTom: queueing traffic, “Queuing traffic”, delay ~22 min
14. 17:57 TomTom: “Slow traffic”
15. 18:06 TomTom: queueing traffic, “Slow traffic”, delay ~9 min
16. 18:11 TomTom: delay now ~4 min (was ~18)
17. 18:11 TomTom: queueing traffic, “Queuing traffic”, delay ~12 min
18. 18:16 TomTom: queueing traffic, “Slow traffic”, delay ~10 min (reported again)
19. 18:38 TomTom: “Slow traffic”
20. 19:02 TomTom no longer reports it
21. 19:02 All clear: no source reports it any more
22. 19:06 Motorway signs: “REPORT OF PEDESTRIANS”
23. 19:14 Motorway signs: “COLLISION SLOW DOWN”
24. 19:15 TomTom: queueing traffic, “Slow traffic”, delay ~3 min
25. 19:21 TomTom no longer reports it
26. 19:42 Motorway signs no longer show “REPORT OF PEDESTRIANS”
27. 20:12 Motorway signs no longer show “COLLISION SLOW DOWN”
28. 20:12 All clear: no source reports it any more

Source reports

• Slow traffic
• Queuing traffic
• Stationary traffic
• Overhead signs read “REPORT OF PEDESTRIANS” (9 signs; furthest along: M25 anti-clockwise within J16 after M40 J1A northbound exit).
• Overhead signs read “REPORT OF PEDESTRIANS” (8 signs; furthest along: M25 clockwise between J15 and J16).
• Overhead signs read “COLLISION SLOW DOWN” (1 sign; furthest along: M25 anti-clockwise between J16 and J15).

Other recent incidents on the M25

• M25 crash J16–J17 clockwise18:41 · cleared after 2 h 16 min
• M25 crash J24–J25 clockwise15:14 · cleared after 3 h 56 min
• M25 stopped traffic J16–J17 clockwise14:21 · cleared after 2 h 50 min
• M25 stopped traffic J214:09 · cleared after 4 h 7 min
• M25 stopped traffic J13–J12 anticlockwise13:55 · cleared after 4 h 58 min
• M25 crash J26–J27 clockwise13:22 · cleared after 1 h 30 min
• M25 crash J13–J12 anticlockwise11:01 · cleared after 3 h 44 min
• M25 crash J24 clockwise08:09 · cleared after 12 h 33 min
• M25 stopped traffic J6–J5 anticlockwise08:01 · cleared after 3 h 19 min
• M25 delays J10–J1107:58 · cleared after 5 h 39 min

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