M4 crash J10–J8 eastbound

Crash on the M4 eastbound at J10–J8 on Saturday 26 September 2026, from 12:42. Cleared at 15:22 after 2 h 40 min. Timeline of reports from the motorway signs, TomTom and National Highways.

Status

Cleared 15:22 on 26 Sept 2026, after 2 h 40 min

Location

M4 eastbound · J10–J8

Reported as

Collision

Lanes

1 of 4 lanes closed

At its worst

Delay ~9 min

Sources

Motorway signs ×2 · TomTom · National Highways

Timeline

1. Sat 12:42 Motorway signs: “REPORT OF DEBRIS”
2. Sat 12:56 Motorway signs: “COLLISION”
3. Sat 13:02 TomTom: collision, “Stationary traffic, Accident”, delay ~9 min
4. Sat 13:15 TomTom: now says queueing traffic, “Stationary traffic”
5. Sat 13:47 Motorway signs no longer show “REPORT OF DEBRIS”
6. Sat 14:13 National Highways: 1 of 4 lanes closed
7. Sat 14:13 TomTom: “Queuing traffic”
8. Sat 14:31 TomTom no longer reports it
9. Sat 15:17 Motorway signs no longer show “COLLISION”
10. Sat 15:22 National Highways: lane closure lifted
11. Sat 15:22 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF DEBRIS” (2 signs; furthest along: M4 J8 eastbound access).
• Queuing traffic
• 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 J18yesterday 19:23 · cleared after 46 min
• M4 crash J5–J4B eastboundyesterday 18:15 · cleared after 57 min
• M4 closed J15–J16yesterday 17:50 · cleared after 15 min
• M4 crash J19–J20 westboundyesterday 16:33 · cleared after 1 h 19 min
• M4 reported crash J13–J12 eastboundyesterday 08:00 · cleared after 38 min
• M4 crash Westboundyesterday 07:57 · cleared after 2 h 30 min
• M4 crash Eastboundyesterday 07:57 · cleared after 45 min
• M4 crash J35 eastboundyesterday 07:27 · cleared after 2 h 55 min
• M4 reported crash J15–J14 eastboundMon 22:41 · cleared after 54 min
• M4 crash J8–J10 westboundMon 18:25 · cleared after 46 min

Live traffic and past incidents at M4 J10 and M4 J8.

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.