M4 crash J18–J19

Crash on the M4 at J18–J19 on Thursday 12 November 2026, from 17:45. Still reported at 18:53 UK time. Timeline of reports from TomTom.

Status

Live since 17:45 (1 h 8 min)

Location

M4 J18–J19

Reported as

Collision

Delay

~78 min

At its worst

Stationary traffic · delay ~89 min

Sources

TomTom

Timeline

1. 17:45 TomTom: queueing traffic, “Stationary traffic”, delay ~34 min
2. 17:50 TomTom: now says collision, delay now ~45 min (was ~34), “Stationary traffic, Accident”
3. 17:59 TomTom: delay now ~73 min (was ~55)

Source reports

• Stationary traffic, Accident

Other recent incidents on the M4

• M4 reported crash J19–J20 westbound17:27 · Live
• M4 crash Both directions08:08 · cleared after 1 h 5 min
• M4 stopped traffic J3 westbound06:48 · cleared after 3 h 3 min
• M4 crash J6 westboundyesterday 15:41 · cleared after 1 h 35 min
• M4 crash J10–J8 eastboundyesterday 07:50 · cleared after 2 h 6 min
• M4 stopped traffic J20–J21yesterday 07:29 · cleared after 1 h 23 min
• M4 stopped traffic J4–J3 eastboundyesterday 06:44 · cleared after 3 h 3 min
• M4 crash J18Tue 19:23 · cleared after 46 min
• M4 crash J5–J4B eastboundTue 18:15 · cleared after 57 min
• M4 closed J15–J16Tue 17:50 · cleared after 15 min

Live traffic and past incidents at M4 J18 and M4 J19.

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