M1 crash J20–J21 northbound

Crash on the M1 northbound at J20–J21 on Wednesday 14 October 2026, from 14:49. Cleared at 16:02 after 1 h 13 min. Timeline of reports from TomTom and the motorway signs.

Status

Cleared 16:02 on 14 Oct 2026, after 1 h 13 min

Location

M1 northbound · J20–J21

Reported as

Collision

Lanes

Road closed

At its worst

Stationary traffic · delay ~96 min

Sources

TomTom ×2 · Motorway signs

Timeline

1. Wed 14:49 Motorway signs: “COLLISION SLOW DOWN”
2. Wed 14:57 TomTom: queueing traffic, “Stationary traffic”, delay ~27 min
3. Wed 15:02 TomTom: now says collision, “Stationary traffic, Accident”
4. Wed 15:20 TomTom: delay now ~31 min (was ~45)
5. Wed 15:34 TomTom: road closed
6. Wed 15:34 TomTom: now says queueing traffic, delay now ~29 min (was ~42), “Stationary traffic”
7. Wed 15:37 Motorway signs no longer show “COLLISION SLOW DOWN”
8. Wed 15:38 TomTom: delay now ~44 min (was ~29)
9. Wed 15:43 TomTom: delay now ~96 min (was ~44)
10. Wed 15:48 TomTom: delay now ~29 min (was ~96)
11. Wed 16:02 TomTom no longer reports it
12. Wed 16:02 All clear: no source reports it any more

Source reports

• Stationary traffic
• Overhead signs read “COLLISION SLOW DOWN” (1 sign; furthest along: M1 northbound between J20 and J21).
• Closed

Other recent incidents on the M1

• M1 crash J33–J34 northbound01:34 · Live
• M1 crash J9–J10 southboundyesterday 21:10 · cleared after 1 h 47 min
• M1 crash J39 northboundyesterday 18:46 · cleared after 2 h 31 min
• M1 crash J40–J39 southboundyesterday 18:46 · cleared after 2 h 31 min
• M1 crash J12–J13 southboundyesterday 17:09 · cleared after 2 h 7 min
• M1 crash J43–J42 southboundyesterday 15:55 · cleared after 2 h 2 min
• M1 crash J35–J35A northboundyesterday 15:45 · cleared after 2 h 8 min
• M1 crash J20–J21 northboundyesterday 15:00 · cleared after 1 h 49 min
• M1 crash J11yesterday 13:08 · cleared after 1 h 38 min
• M1 crash J17–J18 northboundyesterday 11:57 · cleared after 1 h 53 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.