M4 crash J4 eastbound

Cleared Cleared at 08:16 on 30 Sept 2026, after 1 h 2 min.

Crash on the M4 eastbound at J4 on Wednesday 30 September 2026, from 07:14. Cleared at 08:16 after 1 h 2 min. Timeline of reports from the motorway signs.

1. !

   M4 eastbound · J4

   Collision

   07:14–08:16 (cleared after 1 h 2 min)

   Motorway signs

See the M4 on the live map M4 traffic now

Timeline

1. 07:14 Motorway signs: “COLLISION [HCA0]”
2. 08:16 Motorway signs no longer show “COLLISION [HCA0]”
3. 08:16 All clear: no source reports it any more

What the sources said

• Overhead signs read “COLLISION [HCA0]” (1 sign; furthest along: M4 eastbound within J4).

Other recent incidents on the M4

• M4 crash J35 eastbound · 08:38, still reported
• M4 crash J24 eastbound · 08:34, still reported
• M4 closed J10 westbound · yesterday 22:00, cleared after 36 min
• M4 reported crash J19–J20 westbound · yesterday 06:58, cleared after 43 min
• M4 closed J19–J20 westbound · Mon 22:41, cleared after 5 h 36 min
• M4 closed J19 westbound · Mon 22:41, cleared after 54 min
• M4 closed J16–J17 westbound · Mon 22:41, cleared after 5 h 36 min
• M4 closed J12–J13 westbound · Mon 22:40, cleared after 5 h 36 min
• M4 closed J13–J14 westbound · Mon 22:40, cleared after 5 h 36 min
• M4 closed J15–J16 westbound · Mon 22:40, cleared after 5 h 37 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.