M4 crash Westbound

Crash on the M4 at Westbound on Friday 16 October 2026, from 16:05. Cleared at 16:40 after 35 min. Timeline of reports from Traffic Wales.

Status

Cleared 16:40 on 16 Oct 2026, after 35 min

Location

M4 · Westbound

Reported as

Incident

Sources

Traffic Wales

Timeline

1. 15:55 Traffic Wales: collision
2. 16:35 Traffic Wales: now says incident, “Now clear : Westbound : J45 Ynysforgan”
3. 16:40 Traffic Wales no longer reports it
4. 16:40 All clear: no source reports it any more

Source reports

• M4 : Now clear : Westbound : J45 Ynysforgan

Other recent incidents on the M4

• M4 crash J10–J8 eastbound15:33 · Live
• M4 stopped traffic J16–J17 westbound14:10 · cleared after 1 h 26 min
• M4 reported crash J4–J4B westbound05:29 · cleared after 1 h 21 min
• M4 crash J10–J8 eastboundyesterday 22:50 · cleared after 57 min
• M4 reported crash J17–J16 eastboundyesterday 12:41 · cleared after 1 h 4 min
• M4 crash J4 eastboundyesterday 07:16 · cleared after 57 min
• M4 reported crash J3 westboundyesterday 06:02 · cleared after 1 h 40 min
• M4 reported crash J6–J5 eastboundyesterday 05:34 · cleared after 38 min
• M4 reported crash J5–J6 westboundyesterday 05:34 · cleared after 38 min
• M4 stopped traffic J4–J4B westboundWed 06:51 · cleared after 2 h 54 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.