M4 crash J39 westbound

Crash on the M4 westbound at J39 on Thursday 5 November 2026, from 13:51. Still reported at 15:54 UK time. Timeline of reports from Traffic Wales and TomTom.

Status

Live since 13:51 (2 h 4 min)

Location

M4 westbound · J39

Reported as

Collision

At its worst

Stationary traffic · delay ~20 min

Sources

Traffic Wales ×2 · TomTom

Timeline

1. 13:42 Traffic Wales: obstruction or hazard
2. 13:54 TomTom: collision, “Stationary traffic, Incident”, delay ~20 min
3. 14:08 TomTom: delay now ~20 min (was ~15)
4. 14:22 TomTom: delay now ~10 min (was ~17), “Queuing traffic, Incident”
5. 14:26 TomTom: “Stationary traffic, Incident”
6. 14:56 Traffic Wales: queueing traffic
7. 14:59 TomTom no longer reports it
8. 15:01 Traffic Wales: now says incident, “Now open : Westbound : J41 Pentyla/Baglan to J42 Earlswood”

Source reports

• M4 : Now open : Westbound : J41 Pentyla/Baglan to J42 Earlswood
• Stationary traffic, Incident
• M4 : Westbound : J39 Groes to J42 Earlswood : Congestion : Delays possible

Other recent incidents on the M4

• 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
• M4 crash Westboundyesterday 07:50 · cleared after 1 h 15 min
• M4 stopped traffic J3–J2yesterday 06:48 · cleared after 2 h 36 min
• M4 crash J3 westboundTue 18:44 · cleared after 51 min
• M4 crash J20–J19 eastboundTue 11:21 · cleared after 34 min
• M4 stopped traffic J3–J2Tue 06:50 · cleared after 2 h 13 min

Live traffic and past incidents at M4 J39.

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