M25 stopped traffic J16–J15 anticlockwise

Stopped traffic on the M25 anticlockwise at J16–J15 on Saturday 17 October 2026, from 20:34. Still reported at 22:53 UK time. Timeline of reports from TomTom and the motorway signs.

Status

Live since 20:34 (2 h 20 min)

Location

M25 anticlockwise · J16–J15

Reported as

Incident

Delay

~8 min

At its worst

Stationary traffic · delay ~32 min

Sources

TomTom · Motorway signs

Timeline

1. 20:34 Motorway signs: “INCIDENT SLOW DOWN”
2. 20:40 TomTom: queueing traffic, “Slow traffic”, delay ~3 min
3. 20:45 TomTom: delay now ~8 min (was ~3), “Queuing traffic”
4. 20:59 TomTom: “Stationary traffic”
5. 21:04 TomTom: delay now ~32 min (was ~13)
6. 21:13 TomTom: delay now ~16 min (was ~26)
7. 21:31 Motorway signs no longer show “INCIDENT SLOW DOWN”
8. 21:41 TomTom: delay now ~19 min (was ~14)
9. 21:45 TomTom: delay now ~9 min (was ~19), “Queuing traffic”
10. 21:54 TomTom: delay now ~12 min (was ~7), “Stationary traffic”
11. 21:59 TomTom: “Queuing traffic”
12. 22:22 TomTom: “Stationary traffic”
13. 22:31 TomTom: “Queuing traffic”

Source reports

• Queuing traffic
• Overhead signs read “INCIDENT SLOW DOWN” (1 sign; furthest along: M25 anti-clockwise between J16 and J15).

Other recent incidents on the M25

• M25 crash J27 anticlockwise21:59 · Live
• M25 crash J27 anticlockwise21:16 · cleared after 45 min
• M25 crash J24–J25 clockwise18:01 · cleared after 1 h
• M25 stopped traffic J14–J1315:53 · cleared after 2 h 36 min
• M25 crash J27 anticlockwise15:09 · cleared after 50 min
• M25 crash J12–J11 anticlockwise14:43 · cleared after 46 min
• M25 reported crash J8–J9 clockwise09:47 · cleared after 40 min
• M25 crash J6–J7 clockwiseyesterday 20:45 · cleared after 3 h 40 min
• M25 crash J7 clockwiseyesterday 18:41 · cleared after 5 h 14 min
• M25 crash J21–J20 anticlockwiseyesterday 16:12 · cleared after 3 h 12 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.