M4 crash Westbound

Crash on the M4 at Westbound on Wednesday 4 November 2026, from 07:50. Cleared at 09:05 after 1 h 15 min. Timeline of reports from Traffic Wales.

Status

Cleared 09:05 on 4 Nov 2026, after 1 h 15 min

Location

M4 Westbound

Reported as

Incident

Sources

Traffic Wales

Timeline

1. 07:42 Traffic Wales: collision
2. 07:55 Traffic Wales: “closed : Due to Accident : Delays possible”
3. 09:00 Traffic Wales: now says incident, “Now clear : Westbound : J45 Ynysforgan”
4. 09:05 Traffic Wales no longer reports it
5. 09:05 All clear: no source reports it any more

Source reports

• M4 : Now clear : Westbound : J45 Ynysforgan

Other recent incidents on the M4

• M4 crash J13–J12 eastbound08:39 · cleared after 52 min
• M4 stopped traffic J3–J206:48 · cleared after 2 h 36 min
• M4 crash J3 westboundyesterday 18:44 · cleared after 51 min
• M4 crash J20–J19 eastboundyesterday 11:21 · cleared after 34 min
• M4 stopped traffic J3–J2yesterday 06:50 · cleared after 2 h 13 min
• M4 crash J4B–J5 westboundyesterday 01:23 · cleared after 17 h 34 min
• M4 crash J10–J8 eastboundMon 16:33 · cleared after 1 h 18 min
• M4 crash EastboundMon 09:44 · cleared after 25 min
• M4 crash WestboundMon 08:29 · cleared after 40 min
• M4 crash Prince of Wales Bridge eastboundMon 08:13 · cleared after 22 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.