M4 reported crash J15–J16 westbound

Reported crash on the M4 westbound at J15–J16 on Sunday 18 October 2026, from 01:38. Cleared at 02:32 after 55 min. Timeline of reports from the motorway signs.

Status

Cleared 02:32 on 18 Oct 2026, after 55 min

Location

M4 westbound · J15–J16

Reported as

Collision

Sources

Motorway signs

Timeline

1. 01:38 Motorway signs: “REPORT OF COLLISION”
2. 02:32 Motorway signs no longer show “REPORT OF COLLISION”
3. 02:32 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF COLLISION” (8 signs; furthest along: M4 westbound between J15 and J16).

Other recent incidents on the M4

• M4 crash J4 eastboundyesterday 23:21 · cleared after 2 h 11 min
• M4 crash J8–J10 westboundyesterday 12:37 · cleared after 51 min
• M4 closed J14–J15 westboundFri 21:09 · cleared after 2 h 5 min
• M4 crash WestboundFri 16:05 · cleared after 35 min
• M4 crash J10–J8 eastboundFri 15:33 · cleared after 2 h 3 min
• M4 stopped traffic J16–J17 westboundFri 14:10 · cleared after 1 h 26 min
• M4 reported crash J4–J4B westboundFri 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

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.