M1 crash J25 southbound

Cleared Cleared at 17:26 on 23 Sept 2026, after 8 h 53 min.

Crash on the M1 southbound at J25 on Wednesday 23 September 2026, from 08:34. Cleared at 17:26 after 8 h 53 min. Timeline of reports from TomTom, the motorway signs and National Highways.

1. !

   M1 southbound · J25

   Collision

   4 of 4 lanes closed · Wed 08:34–Wed 17:26 (cleared after 8 h 53 min) · delay ~4 min · queue 3.5 mi

   TomTom ×2 · Motorway signs ×5 · National Highways ×18

See the M1 on the live map M1 traffic now

Timeline

1. Wed 08:34 TomTom: collision, “Stationary traffic, Accident”, delay ~27 min
2. Wed 08:37 Motorway signs: “COLLISION”
3. Wed 08:38 National Highways: 4 of 4 lanes closed
4. Wed 08:46 TomTom: collision, “Accident, Lane closed”
5. Wed 08:55 National Highways: 2 of 4 lanes closed
6. Wed 08:55 National Highways: 2 of 4 lanes closed
7. Wed 08:55 National Highways: 2 of 4 lanes closed
8. Wed 08:55 National Highways: 2 of 4 lanes closed
9. Wed 08:55 National Highways: 2 of 4 lanes closed
10. Wed 08:55 National Highways: 2 of 4 lanes closed
11. Wed 08:55 National Highways: 2 of 4 lanes closed
12. Wed 08:55 National Highways: 2 of 4 lanes closed
13. Wed 08:55 National Highways: 2 of 4 lanes closed
14. Wed 09:02 Motorway signs: “COLLISION SLOW DOWN”
15. Wed 09:04 TomTom: now says queueing traffic, delay now ~44 min (was ~27), “Stationary traffic”
16. Wed 09:07 Motorway signs: “M1 J25-J24A LANES CLOSED DUE TO SPILLAGE”
17. Wed 09:18 National Highways: 1 of 4 lanes closed
18. Wed 09:18 National Highways: 1 of 5 lanes closed
19. Wed 09:18 National Highways: 1 of 4 lanes closed
20. Wed 09:18 National Highways: 1 of 4 lanes closed
21. Wed 09:18 National Highways: 1 of 4 lanes closed
22. Wed 09:19 Motorway signs: “LANE CLOSED FOR INCIDENT ACCESS”
23. Wed 09:55 Motorway signs no longer show “COLLISION”
24. Wed 10:01 National Highways: lane closure lifted
25. Wed 11:10 National Highways: 1 of 5 lanes closed
26. Wed 11:29 National Highways: 1 of 4 lanes closed
27. Wed 11:29 National Highways: 1 of 4 lanes closed
28. Wed 12:04 TomTom: delay now ~22 min (was ~16)
29. Wed 12:19 National Highways: lane closure lifted
30. Wed 12:46 Motorway signs: “REPORT OF OBSTRUCTION”
31. Wed 13:13 TomTom: delay now ~20 min (was ~29)
32. Wed 13:17 National Highways: lane closure lifted
33. Wed 13:17 All clear: no source reports it any more
34. Wed 13:25 Motorway signs: “COLLISION” (reported again)
35. Wed 13:25 Motorway signs no longer show “COLLISION SLOW DOWN”
36. Wed 13:25 Motorway signs no longer show “LANE CLOSED FOR INCIDENT ACCESS”
37. Wed 13:25 Motorway signs no longer show “REPORT OF OBSTRUCTION”
38. Wed 13:41 TomTom: delay now ~4 min (was ~15), “Slow traffic”
39. Wed 13:49 National Highways: lane closure lifted
40. Wed 13:55 TomTom no longer reports it
41. Wed 13:56 Motorway signs no longer show “COLLISION”
42. Wed 13:56 Motorway signs no longer show “M1 J25-J24A LANES CLOSED DUE TO SPILLAGE”
43. Wed 13:56 All clear: no source reports it any more
44. Wed 16:56 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
45. Wed 17:26 Motorway signs no longer show “REPORT OF OBSTRUCTION”
46. Wed 17:26 All clear: no source reports it any more

What the sources said

• Accident, Lane closed
• Slow traffic
• Overhead signs read “COLLISION” (2 signs; furthest along: M1 southbound between J25 and J24A).
• M1 southbound between J25 and J24A
• Overhead signs read “COLLISION SLOW DOWN” (1 sign; furthest along: M1 southbound between J26 and J25).
• Overhead signs read “M1 J25-J24A LANES CLOSED DUE TO SPILLAGE” (1 sign; e.g. M1 southbound between J28 and J27). Marker placed near M1 J25–J24A using the signs there, so it is approximate.
• M1 southbound within J25
• Overhead signs read “LANE CLOSED FOR INCIDENT ACCESS” (1 sign; furthest along: M1 southbound between J25 and J24A).
• Overhead signs read “REPORT OF OBSTRUCTION” (1 sign; furthest along: M1 northbound between J24A and J25).

Other recent incidents on the M1

• M1 crash J22–J21A southbound · 15:12, cleared after 1 h 6 min
• M1 reported crash J43–J42 southbound · 11:05, cleared after 41 min
• M1 crash J47 northbound · 03:39, cleared after 35 min
• M1 reported crash J8 northbound · 02:20, cleared after 54 min
• M1 closed J12–J13 · yesterday 22:23, cleared after 39 min
• M1 crash J22–J23 northbound · yesterday 14:19, cleared after 13 h 29 min
• M1 crash J29–J28 southbound · yesterday 08:33, cleared after 1 h 37 min
• M1 crash J8–J9 northbound · Thu 15:38, cleared after 5 h
• M1 crash J39 northbound · Wed 18:41, cleared after 1 h 46 min
• M1 reported crash J21A–J21 southbound · Wed 16:09, cleared after 47 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.