M1 crash J31–J30 southbound

Cleared Cleared at 18:57 on 23 Sept 2026, after 3 h 25 min.

Crash on the M1 southbound at J31–J30 on Wednesday 23 September 2026, from 15:32. Cleared at 18:57 after 3 h 25 min. Timeline of reports from TomTom, the motorway signs and National Highways.

1. !

   M1 southbound · J31–J30

   Collision

   2 of 4 lanes closed · Wed 15:32–Wed 18:57 (cleared after 3 h 25 min) · delay ~11 min · queue 4.3 mi

   TomTom ×4 · Motorway signs ×3 · National Highways ×4

See the M1 on the live map M1 traffic now

Timeline

1. Wed 15:32 TomTom: queueing traffic, “Stationary traffic”, delay ~12 min
2. Wed 15:32 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
3. Wed 15:37 Motorway signs: “COLLISION”
4. Wed 15:43 National Highways: 2 of 4 lanes closed
5. Wed 15:43 National Highways: 2 of 4 lanes closed
6. Wed 15:43 Motorway signs: “LANE CLOSED FOR INCIDENT ACCESS”
7. Wed 15:52 TomTom: collision, “Accident, Lane closed”
8. Wed 15:59 TomTom: now says collision, delay now ~42 min (was ~12), “Stationary traffic, Accident”
9. Wed 16:09 National Highways: 2 of 4 lanes closed
10. Wed 16:19 National Highways: lane closure lifted
11. Wed 16:19 All clear: no source reports it any more
12. Wed 16:26 Motorway signs no longer show “COLLISION”
13. Wed 16:26 Motorway signs no longer show “LANE CLOSED FOR INCIDENT ACCESS”
14. Wed 16:27 TomTom: now says queueing traffic, delay now ~21 min (was ~48), “Stationary traffic”
15. Wed 16:41 TomTom: delay now ~11 min (was ~21), “Queuing traffic”
16. Wed 16:45 National Highways: lane closure lifted
17. Wed 16:55 TomTom: queueing traffic, “Stationary traffic”, delay ~10 min
18. Wed 17:09 TomTom no longer reports it
19. Wed 17:09 All clear: no source reports it any more
20. Wed 17:50 TomTom: delay now ~7 min (was ~12), “Queuing traffic”
21. Wed 18:04 TomTom no longer reports it
22. Wed 18:04 All clear: no source reports it any more
23. Wed 18:12 Motorway signs: “REPORT OF OBSTRUCTION”
24. Wed 18:57 Motorway signs no longer show “REPORT OF OBSTRUCTION”
25. Wed 18:57 All clear: no source reports it any more

What the sources said

• Queuing traffic
• Overhead signs read “COLLISION” (2 signs; furthest along: M1 southbound between J31 and J30).
• Overhead signs read “LANE CLOSED FOR INCIDENT ACCESS” (1 sign; furthest along: M1 J31 southbound exit).
• Accident, Lane closed
• M1 southbound between J31 and J30
• Slow traffic
• Overhead signs read “REPORT OF OBSTRUCTION” (2 signs; furthest along: M1 southbound between J33 and J32).

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.