M4 crash J4 eastbound

Crash on the M4 eastbound at J4 on Thursday 15 October 2026, from 07:16. Cleared at 08:13 after 57 min. Timeline of reports from the motorway signs, National Highways and TomTom.

Status

Cleared 08:13 on 15 Oct 2026, after 57 min

Location

M4 eastbound · J4

Reported as

Collision

Lanes

1 of 4 lanes closed

Sources

Motorway signs · National Highways · TomTom

Timeline

1. 07:16 Motorway signs: “COLLISION”
2. 07:25 National Highways: 1 of 4 lanes closed
3. 08:00 National Highways: lane closure lifted
4. 08:01 TomTom: queueing traffic, “Slow traffic”, delay ~5 min
5. 08:05 TomTom no longer reports it
6. 08:13 Motorway signs no longer show “COLLISION”
7. 08:13 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION” (1 sign; furthest along: M4 eastbound within J4).
• M4 eastbound within J4
• Slow traffic

Other recent incidents on the M4

• M4 reported crash J3 westbound06:02 · cleared after 1 h 40 min
• M4 reported crash J6–J5 eastbound05:34 · cleared after 38 min
• M4 reported crash J5–J6 westbound05:34 · cleared after 38 min
• M4 stopped traffic J4–J4B westboundyesterday 06:51 · cleared after 2 h 54 min
• M4 closed Westboundyesterday 01:44 · cleared after 2 h 15 min
• M4 crash J17–J18Tue 10:09 · cleared after 2 h 50 min
• M4 crash J6–J5 eastboundTue 07:10 · cleared after 1 h 9 min
• M4 stopped traffic J3–J2Tue 06:43 · cleared after 1 h 9 min
• M4 crash J3 eastboundMon 18:51 · cleared after 1 h 2 min
• M4 closed J19 westboundMon 07:57 · cleared after 4 h 56 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.