M4 crash Westbound

Crash on the M4 at Westbound on Thursday 5 November 2026, from 18:51. Cleared at 19:36 after 45 min. Timeline of reports from Traffic Wales.

Status

Cleared 19:36 on 5 Nov 2026, after 45 min

Location

M4 Westbound

Reported as

Incident

Sources

Traffic Wales

Timeline

1. 18:43 Traffic Wales: collision
2. 19:06 Traffic Wales: now says incident, “Now clear : Westbound : J45 Ynysforgan to J46 Llangyfelach”
3. 19:16 Traffic Wales no longer reports it
4. 19:16 All clear: no source reports it any more
5. 19:31 Traffic Wales: incident (reported again)
6. 19:36 Traffic Wales no longer reports it
7. 19:36 All clear: no source reports it any more

Source reports

• M4 : Now clear : Westbound : J45 Ynysforgan to J46 Llangyfelach

Other recent incidents on the M4

• M4 crash Westbound18:46 · cleared after 1 h 15 min
• M4 crash J4 eastbound17:39 · cleared after 1 h 30 min
• M4 crash J13–J1416:40 · cleared after 1 h 55 min
• M4 crash Westbound16:01 · cleared after 3 h 20 min
• M4 crash Westbound13:51 · cleared after 4 h 20 min
• M4 crash J8–J10 westbound11:52 · cleared after 1 h 58 min
• M4 crash J19–J20 westbound06:54 · cleared after 1 h 41 min
• M4 stopped traffic J3–J2 westbound04:54 · cleared after 4 h 27 min
• M4 stopped traffic J19yesterday 21:04 · cleared after 55 min
• M4 crash J13–J12 eastboundyesterday 08:39 · cleared after 52 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.