M1 stopped traffic J20–J21

Cleared Cleared at 23:32 on 25 Sept 2026, after 2 h 15 min.

Stopped traffic on the M1 at J20–J21 on Friday 25 September 2026, from 21:17. Cleared at 23:32 after 2 h 15 min. Timeline of reports from TomTom.

1. ≡

   M1 · J20–J21

   Queueing traffic

   Fri 21:17–Fri 23:32 (cleared after 2 h 15 min) · delay ~5 min · queue 3.3 mi

   TomTom ×2

At its worst: stationary traffic · delay ~20 min

See the M1 on the live map M1 traffic now

Timeline

1. Fri 21:17 TomTom: queueing traffic, “Queuing traffic”, delay ~4 min
2. Fri 21:30 TomTom: “Stationary traffic”
3. Fri 21:43 TomTom: queueing traffic, “Queuing traffic”, delay ~4 min
4. Fri 22:00 TomTom: “Stationary traffic”
5. Fri 22:18 TomTom: delay now ~20 min (was ~14)
6. Fri 23:10 TomTom: “Queuing traffic”
7. Fri 23:14 TomTom: “Stationary traffic”
8. Fri 23:14 TomTom: “Queuing traffic”
9. Fri 23:23 TomTom: “Slow traffic”
10. Fri 23:32 TomTom no longer reports it
11. Fri 23:32 All clear: no source reports it any more

What the sources said

• Slow traffic

Other recent incidents on the M1

• M1 crash J20 northbound · 14:49, still reported
• M1 crash J24 southbound · 12:56, cleared after 39 min
• M1 crash J21A–J21 · 10:48, cleared after 2 h 1 min
• M1 delays J9–J10 · 06:13, cleared after 3 h 3 min
• M1 crash J9–J10 · yesterday 21:47, cleared after 1 h 33 min
• M1 crash J33–J34 northbound · yesterday 17:38, cleared after 1 h 52 min
• M1 crash J21A–J22 · yesterday 16:34, cleared after 2 h 4 min
• M1 closed J33–J32 southbound · yesterday 16:27, cleared after 2 h 12 min
• M1 crash J8–J9 northbound · yesterday 16:25, cleared after 6 h 35 min
• M1 closed J31 northbound · yesterday 15:57, cleared after 2 h 13 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.