M25 stopped traffic J16–J15 anticlockwise

Stopped traffic on the M25 anticlockwise at J16–J15 on Saturday 31 October 2026, from 20:40. Cleared at 23:56 after 3 h 16 min. Timeline of reports from TomTom and the motorway signs.

Status

Cleared 23:56 on 31 Oct 2026, after 3 h 16 min

Location

M25 anticlockwise · J16–J15

Reported as

Incident

At its worst

Stationary traffic · delay ~25 min

Sources

TomTom · Motorway signs ×2

Timeline

1. Sat 20:40 TomTom: queueing traffic, “Slow traffic”, delay ~3 min
2. Sat 20:43 Motorway signs: “INCIDENT SLOW DOWN”
3. Sat 20:49 TomTom: “Queuing traffic”
4. Sat 21:10 TomTom no longer reports it
5. Sat 21:10 Motorway signs no longer show “INCIDENT SLOW DOWN”
6. Sat 21:14 TomTom: queueing traffic, “Stationary traffic”, delay ~9 min (reported again)
7. Sat 21:18 TomTom: delay now ~25 min (was ~9)
8. Sat 21:23 TomTom: delay now ~15 min (was ~25)
9. Sat 21:40 Motorway signs no longer show “INCIDENT SLOW DOWN”
10. Sat 22:23 TomTom: delay now ~10 min (was ~17), “Queuing traffic”
11. Sat 22:28 TomTom: “Stationary traffic”
12. Sat 22:52 TomTom: “Queuing traffic”
13. Sat 23:02 TomTom: “Slow traffic”
14. Sat 23:08 TomTom no longer reports it
15. Sat 23:08 All clear: no source reports it any more
16. Sat 23:31 TomTom: queueing traffic, “Slow traffic”, delay ~3 min (reported again)
17. Sat 23:36 TomTom: “Queuing traffic”
18. Sat 23:41 TomTom: “Slow traffic”
19. Sat 23:56 TomTom no longer reports it
20. Sat 23:56 All clear: no source reports it any more

Source reports

• Slow traffic
• Overhead signs read “INCIDENT SLOW DOWN” (1 sign; furthest along: M25 anti-clockwise between J16 and J15).
• Overhead signs read “INCIDENT SLOW DOWN” (3 signs; furthest along: M25 anti-clockwise within J16 after M40 J1A northbound exit).

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 J16 and 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.