M4 crash J6–J5 eastbound

Crash on the M4 eastbound at J6–J5 on Tuesday 20 October 2026, from 14:41. Cleared at 16:23 after 1 h 42 min. Timeline of reports from the motorway signs, TomTom and National Highways.

Status

Cleared 16:23 on 20 Oct 2026, after 1 h 42 min

Location

M4 eastbound · J6–J5

Reported as

Collision

Lanes

2 of 4 lanes closed

At its worst

Delay ~15 min

Sources

Motorway signs ×3 · TomTom · National Highways ×4

Timeline

1. 14:41 Motorway signs: “COLLISION [HCA0]”
2. 14:45 Motorway signs: “COLLISION”
3. 14:45 National Highways: 1 of 3 lanes closed
4. 14:45 National Highways: 1 of 3 lanes closed
5. 14:49 TomTom: queueing traffic, “Stationary traffic”, delay ~11 min
6. 15:35 TomTom: “Queuing traffic”
7. 15:36 Motorway signs: “STRANDED VEHICLE”
8. 15:36 National Highways: 2 of 4 lanes closed
9. 15:40 TomTom: “Stationary traffic”
10. 15:49 TomTom: “Queuing traffic”
11. 15:50 National Highways: lane closure lifted
12. 15:53 Motorway signs no longer show “COLLISION [HCA0]”
13. 15:53 Motorway signs no longer show “COLLISION”
14. 15:58 TomTom no longer reports it
15. 16:17 Motorway signs no longer show “STRANDED VEHICLE”
16. 16:23 National Highways: lane closure lifted
17. 16:23 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION [HCA0]” (1 sign; furthest along: M4 eastbound between J6 and J5).
• Queuing traffic
• M4 eastbound within J5
• Overhead signs read “COLLISION” (1 sign; furthest along: M4 eastbound within J5).
• Overhead signs read “STRANDED VEHICLE” (2 signs; furthest along: M4 eastbound between J6 and J5).
• M4 eastbound between J6 and J5

Other recent incidents on the M4

• M4 stopped traffic J13–J12 eastbound12:38 · cleared after 1 h 49 min
• M4 stopped traffic J13–J1212:04 · cleared after 28 min
• M4 crash J10 westbound11:57 · cleared after 2 h 5 min
• M4 reported crash J13–J12 eastbound11:48 · cleared after 58 min
• M4 reported crash J13–J12 eastbound07:24 · cleared after 51 min
• M4 stopped traffic J20–J2107:14 · cleared after 2 h 19 min
• M4 crash Eastboundyesterday 18:36 · cleared after 6 h 25 min
• M4 stopped traffic J14–J15yesterday 13:41 · cleared after 32 min
• M4 crash J18 eastboundyesterday 06:45 · cleared after 6 h 56 min
• M4 crash J15–J14 eastboundSun 18:24 · cleared after 1 h 36 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.