M4 crash J8–J10 westbound

Crash on the M4 westbound at J8–J10 on Saturday 17 October 2026, from 12:37. Cleared at 13:28 after 51 min. Timeline of reports from the motorway signs and National Highways.

Status

Cleared 13:28 on 17 Oct 2026, after 51 min

Location

M4 westbound · J8–J10

Reported as

Collision

Lanes

1 of 4 lanes closed

Sources

Motorway signs · National Highways

Timeline

1. 12:37 Motorway signs: “COLLISION”
2. 12:41 National Highways: 1 of 4 lanes closed
3. 13:12 National Highways: lane closure lifted
4. 13:28 Motorway signs no longer show “COLLISION”
5. 13:28 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION” (3 signs; furthest along: M4 westbound between J8 and J10).
• M4 westbound between J8 and J10

Other recent incidents on the M4

• M4 closed J14–J15 westboundyesterday 21:09 · cleared after 2 h 5 min
• M4 crash Westboundyesterday 16:05 · cleared after 35 min
• M4 crash J10–J8 eastboundyesterday 15:33 · cleared after 2 h 3 min
• M4 stopped traffic J16–J17 westboundyesterday 14:10 · cleared after 1 h 26 min
• M4 reported crash J4–J4B westboundyesterday 05:29 · cleared after 1 h 21 min
• M4 crash J10–J8 eastboundThu 22:50 · cleared after 57 min
• M4 reported crash J17–J16 eastboundThu 12:41 · cleared after 1 h 4 min
• M4 crash J4 eastboundThu 07:16 · cleared after 57 min
• M4 reported crash J3 westboundThu 06:02 · cleared after 1 h 40 min
• M4 reported crash J6–J5 eastboundThu 05:34 · cleared after 38 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.