M4 reported crash J17–J16 eastbound

Reported crash on the M4 eastbound at J17–J16 on Saturday 31 October 2026, from 17:47. Cleared at 18:24 after 37 min. Timeline of reports from the motorway signs.

Status

Cleared 18:24 on 31 Oct 2026, after 37 min

Location

M4 eastbound · J17–J16

Reported as

Collision

Sources

Motorway signs

Timeline

1. Sat 17:47 Motorway signs: “REPORT OF COLLISION”
2. Sat 18:24 Motorway signs no longer show “REPORT OF COLLISION”
3. Sat 18:24 All clear: no source reports it any more

Source reports

• Overhead signs read “REPORT OF COLLISION” (1 sign; furthest along: M4 eastbound between J17 and J16).

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 westboundSat 17:47 · cleared after 37 min
• M4 stopped traffic J3–J2Sat 09:48 · cleared after 25 min
• M4 crash J20–J21 westboundSat 08:53 · cleared after 44 min

Live traffic and past incidents at M4 J17 and M4 J16.

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