M4 reported crash J19–J20 westbound

Reported crash on the M4 westbound at J19–J20 on Saturday 24 October 2026, from 20:09. Cleared at 21:30 after 1 h 21 min. Timeline of reports from the motorway signs.

Status

Cleared 21:30 on 24 Oct 2026, after 1 h 21 min

Location

M4 westbound · J19–J20

Reported as

Collision

Sources

Motorway signs

Timeline

1. Sat 20:09 Motorway signs: “REPORT OF COLLISION”
2. Sat 21:30 Motorway signs no longer show “REPORT OF COLLISION”
3. Sat 21:30 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF COLLISION” (3 signs; furthest along: M4 westbound between J19 and J20).

Other recent incidents on the M4

• M4 crash J10–J8 eastboundyesterday 16:33 · cleared after 1 h 18 min
• M4 crash Eastboundyesterday 09:44 · cleared after 25 min
• M4 crash Westboundyesterday 08:29 · cleared after 40 min
• M4 crash Prince of Wales Bridge eastboundyesterday 08:13 · cleared after 22 min
• M4 stopped traffic J3–J2yesterday 06:48 · cleared after 2 h 13 min
• M4 crash J10–J11 westboundSun 05:12 · cleared after 1 h
• M4 crash J12–J11 eastboundSun 04:41 · cleared after 1 h 31 min
• M4 reported crash J17–J16 eastboundSat 17:47 · cleared after 37 min
• M4 reported crash J17 westboundSat 17:47 · cleared after 37 min
• M4 stopped traffic J3–J2Sat 09:48 · cleared after 25 min

Live traffic and past incidents at M4 J19 and M4 J20.

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