M4 crash J7–J8 westbound

Cleared Cleared at 09:58 on 6 Oct 2026, after 2 h 11 min.

Crash on the M4 westbound at J7–J8 on Tuesday 6 October 2026, from 07:47. Cleared at 09:58 after 2 h 11 min. Timeline of reports from TomTom and the motorway signs.

1. !

   M4 westbound · J7–J8

   Collision

   07:47–09:58 (cleared after 2 h 11 min) · delay ~4 min · queue 2.8 mi

   TomTom ×2 · Motorway signs

See the M4 on the live map M4 traffic now

Timeline

1. 07:47 TomTom: queueing traffic, “Slow traffic”, delay ~3 min
2. 08:28 TomTom no longer reports it
3. 08:28 All clear: no source reports it any more
4. 08:33 TomTom: queueing traffic, “Slow traffic”, delay ~3 min (reported again)
5. 08:38 TomTom no longer reports it
6. 08:42 TomTom: queueing traffic, “Slow traffic”, delay ~5 min
7. 08:47 TomTom: “Queuing traffic”
8. 08:51 TomTom: “Slow traffic”
9. 08:56 TomTom: “Queuing traffic”
10. 09:00 TomTom: “Slow traffic”
11. 09:14 TomTom no longer reports it
12. 09:14 All clear: no source reports it any more
13. 09:19 Motorway signs: “COLLISION [HCA0]”
14. 09:58 Motorway signs no longer show “COLLISION [HCA0]”
15. 09:58 All clear: no source reports it any more

What the sources said

• Slow traffic
• Overhead signs read “COLLISION [HCA0]” (1 sign; furthest along: M4 westbound between J7 and J8).

Other recent incidents on the M4

• M4 stopped traffic J3–J2 · 06:43, cleared after 2 h 59 min
• M4 closed J19–J20 westbound · yesterday 20:25, cleared after 7 h 41 min
• M4 closed J19 westbound · yesterday 20:22, cleared after 7 h 44 min
• M4 closed J20–J21 westbound · yesterday 20:22, cleared after 7 h 44 min
• M4 closed J15–J16 westbound · yesterday 20:18, cleared after 7 h 48 min
• M4 closed J13–J14 westbound · yesterday 20:18, cleared after 7 h 48 min
• M4 closed J12–J13 westbound · yesterday 20:18, cleared after 7 h 48 min
• M4 closed J16–J17 westbound · yesterday 20:18, cleared after 7 h 48 min
• M4 reported crash J5–J6 westbound · yesterday 18:35, cleared after 50 min
• M4 crash J18 eastbound · yesterday 15:23, cleared after 3 h 33 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.