M621 crash J4 westbound

Cleared Cleared at 09:27 on 24 Sept 2026, after 2 h 15 min.

Crash on the M621 westbound at J4 on Thursday 24 September 2026, from 07:12. Cleared at 09:27 after 2 h 15 min. Timeline of reports from the motorway signs and TomTom.

1. !

   M621 westbound · J4

   Collision

   Thu 07:12–Thu 09:27 (cleared after 2 h 15 min) · delay ~6 min · queue 2.6 mi

   Motorway signs · TomTom ×2

See the M621 on the live map M621 traffic now

Timeline

1. Thu 07:12 Motorway signs: “REPORT OF COLLISION”
2. Thu 08:04 Motorway signs no longer show “REPORT OF COLLISION”
3. Thu 08:04 All clear: no source reports it any more
4. Thu 08:08 TomTom: queueing traffic, “Slow traffic”, delay ~4 min
5. Thu 08:13 TomTom no longer reports it
6. Thu 08:21 TomTom: queueing traffic, “Slow traffic”, delay ~5 min
7. Thu 08:30 TomTom: “Queuing traffic”
8. Thu 09:00 TomTom: “Stationary traffic”
9. Thu 09:09 TomTom: “Queuing traffic”
10. Thu 09:18 TomTom no longer reports it
11. Thu 09:18 All clear: no source reports it any more
12. Thu 09:22 TomTom: queueing traffic, “Queuing traffic”, delay ~6 min (reported again)
13. Thu 09:27 TomTom no longer reports it

What the sources said

• Overhead signs read “REPORT OF COLLISION” (2 signs; furthest along: M621 westbound within J4).
• Slow traffic
• Queuing traffic

Other recent incidents on the M621

• M621 reported crash J7 eastbound · 11:05, cleared after 41 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.