M1 crash J21A–J21 southbound

Cleared Cleared at 12:00 on 2 Oct 2026, after 44 min.

Crash on the M1 southbound at J21A–J21 on Friday 2 October 2026, from 11:16. Cleared at 12:00 after 44 min. Timeline of reports from TomTom and the motorway signs.

1. !

   M1 southbound · J21A–J21

   Collision

   11:16–12:00 (cleared after 44 min) · delay ~4 min · queue 4.1 mi

   TomTom · Motorway signs

See the M1 on the live map M1 traffic now

Timeline

1. 11:16 Motorway signs: “COLLISION SLOW DOWN”
2. 11:28 TomTom: queueing traffic, “Slow traffic”, delay ~5 min
3. 11:33 TomTom: “Queuing traffic”
4. 11:47 TomTom: “Slow traffic”
5. 11:56 TomTom no longer reports it
6. 12:00 Motorway signs no longer show “COLLISION SLOW DOWN”
7. 12:00 All clear: no source reports it any more

What the sources said

• Slow traffic
• Overhead signs read “COLLISION SLOW DOWN” (1 sign; furthest along: M1 southbound between J21A and J21).

Other recent incidents on the M1

• M1 crash J22–J23 northbound · 12:50, still reported
• M1 reported crash J26–J27 northbound · 08:46, cleared after 44 min
• M1 crash J31–J30 northbound · yesterday 19:47, cleared after 47 min
• M1 crash J11–J11A northbound · yesterday 13:34, cleared after 5 h 2 min
• M1 crash J8–J9 northbound · Wed 15:45, cleared after 3 h 38 min
• M1 crash J20–J21 northbound · Wed 12:22, cleared after 1 h 55 min
• M1 crash J27–J26 southbound · Wed 04:15, cleared after 1 h
• M1 crash J14–J13 southbound · Wed 00:39, cleared after 2 h 6 min
• M1 crash J30–J31 northbound · Tue 23:49, cleared after 1 h 42 min
• M1 reported crash J12–J13 northbound · Tue 17:06, cleared after 37 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.