M1 crash J31–J30 southbound

Crash on the M1 southbound at J31–J30 on Wednesday 23 September 2026, from 15:32. Cleared at 18:18 after 170 h 47 min. Timeline of reports from TomTom, the motorway signs and National Highways.

Status

Cleared 18:18 on 30 Sept 2026, after 170 h 47 min

Location

M1 southbound · J31–J30

Reported as

Collision

Lanes

2 of 4 lanes closed

At its worst

Stationary traffic · delay ~48 min

Sources

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

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
26. Wed 17:48 Motorway signs: “REPORT OF OBSTRUCTION” (reported again)
27. Wed 18:18 Motorway signs no longer show “REPORT OF OBSTRUCTION”
28. Wed 18:18 All clear: no source reports it any more

Source reports

• 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” (1 sign; furthest along: M1 southbound between J33 and J32).

Other recent incidents on the M1

• M1 closed J25–J24A southboundyesterday 23:06 · cleared after 5 h 24 min
• M1 closed J25–J24A southboundyesterday 21:34 · cleared after 1 h
• M1 crash J45 northboundyesterday 19:23 · cleared after 57 min
• M1 stopped traffic J10–J11 northboundyesterday 16:25 · cleared after 2 h 3 min
• M1 crash J34–J33 southboundyesterday 16:20 · cleared after 2 h 51 min
• M1 crash J34–J33 southboundyesterday 13:49 · cleared after 11 min
• M1 crash J32 northboundyesterday 13:48 · cleared after 12 min
• M1 crash J22 northboundyesterday 11:42 · cleared after 57 min
• M1 crash J12–J11A southboundyesterday 10:04 · cleared after 2 h 40 min
• M1 crash J23A–J24 northboundyesterday 06:42 · cleared after 1 h 25 min

Live traffic and past incidents at M1 J31 and M1 J30.

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