M4 crash J10–J8 eastbound

Crash on the M4 eastbound at J10–J8 on Friday 16 October 2026, from 15:33. Cleared at 17:36 after 2 h 3 min. Timeline of reports from the motorway signs, TomTom and National Highways.

Status

Cleared 17:36 on 16 Oct 2026, after 2 h 3 min

Location

M4 eastbound · J10–J8

Reported as

Collision

Lanes

1 of 4 lanes closed

At its worst

Delay ~14 min

Sources

Motorway signs ×3 · TomTom · National Highways

Timeline

1. 15:33 Motorway signs: “REPORT OF OBSTRUCTION”
2. 15:53 Motorway signs: “COLLISION”
3. 15:55 Motorway signs: “COLLISION SLOW DOWN”
4. 15:55 National Highways: 1 of 4 lanes closed
5. 16:13 TomTom: queueing traffic, “Queuing traffic”, delay ~6 min
6. 16:17 TomTom: “Stationary traffic”
7. 16:23 Motorway signs no longer show “REPORT OF OBSTRUCTION”
8. 17:21 TomTom: “Queuing traffic”
9. 17:23 Motorway signs no longer show “COLLISION SLOW DOWN”
10. 17:23 Motorway signs no longer show “COLLISION”
11. 17:26 TomTom: “Slow traffic”
12. 17:31 TomTom no longer reports it
13. 17:36 National Highways: lane closure lifted
14. 17:36 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF OBSTRUCTION” (7 signs; furthest along: M4 J8 eastbound access).
• Slow traffic
• Overhead signs read “COLLISION SLOW DOWN” (2 signs; furthest along: M4 eastbound between J10 and J8).
• Overhead signs read “COLLISION” (1 sign; furthest along: M4 eastbound between J10 and J8).
• M4 eastbound between J10 and J8

Other recent incidents on the M4

• M4 crash Westbound16:05 · cleared after 35 min
• M4 stopped traffic J16–J17 westbound14:10 · cleared after 1 h 26 min
• M4 reported crash J4–J4B westbound05:29 · cleared after 1 h 21 min
• M4 crash J10–J8 eastboundyesterday 22:50 · cleared after 57 min
• M4 reported crash J17–J16 eastboundyesterday 12:41 · cleared after 1 h 4 min
• M4 crash J4 eastboundyesterday 07:16 · cleared after 57 min
• M4 reported crash J3 westboundyesterday 06:02 · cleared after 1 h 40 min
• M4 reported crash J6–J5 eastboundyesterday 05:34 · cleared after 38 min
• M4 reported crash J5–J6 westboundyesterday 05:34 · cleared after 38 min
• M4 stopped traffic J4–J4B westboundWed 06:51 · cleared after 2 h 54 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.