M4 crash J4B–J5 westbound

Crash on the M4 westbound at J4B–J5 on Thursday 22 October 2026, from 09:55. Cleared at 14:28 after 4 h 33 min. Timeline of reports from the motorway signs.

Status

Cleared 14:28 on 22 Oct 2026, after 4 h 33 min

Location

M4 westbound · J4B–J5

Reported as

Collision

Sources

Motorway signs

Timeline

1. yesterday 09:51 Motorway signs: “COLLISION ON SLIP ROAD[HCA0]”
2. yesterday 14:28 Motorway signs no longer show “COLLISION ON SLIP ROAD[HCA0]”
3. yesterday 14:28 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION ON SLIP ROAD[HCA0]” (1 sign; furthest along: M4 westbound between J4B and J5).

Other recent incidents on the M4

• M4 crash J8–J10 westboundyesterday 15:23 · cleared after 2 h 46 min
• M4 stopped traffic J20–J21yesterday 07:02 · cleared after 51 min
• M4 crash J35 westboundWed 22:53 · cleared after 1 h 25 min
• M4 closed J20–J21 westboundWed 20:45 · cleared after 6 h 52 min
• M4 crash J10–J8 eastboundWed 13:16 · cleared after 36 min
• M4 crash J18Wed 07:27 · cleared after 23 min
• M4 crash J19–J20 westboundWed 06:54 · cleared after 2 h 33 min
• M4 closed J20–J21 westboundTue 21:17 · cleared after 7 h 26 min
• M4 crash J6–J5 eastboundTue 14:41 · cleared after 1 h 42 min
• M4 stopped traffic J13–J12 eastboundTue 12:38 · cleared after 1 h 49 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.