M4 reported crash J17–J16 eastbound

Reported crash on the M4 eastbound at J17–J16 on Saturday 26 September 2026, from 03:44. Cleared at 06:53 after 291 h 9 min. Timeline of reports from the motorway signs.

Status

Cleared 06:53 on 8 Oct 2026, after 291 h 9 min

Location

M4 eastbound · J17–J16

Reported as

Collision

Sources

Motorway signs

Timeline

1. Sat 03:38 Motorway signs: “REPORT OF COLLISION”
2. Sat 04:44 Motorway signs no longer show “REPORT OF COLLISION”
3. Sat 04:44 All clear: no source reports it any more
4. Sat 23:42 Motorway signs: “REPORT OF COLLISION” (reported again)
5. Sun 00:13 Motorway signs no longer show “REPORT OF COLLISION”
6. Sun 00:13 All clear: no source reports it any more
7. Thu 06:23 Motorway signs: “REPORT OF COLLISION” (reported again)
8. Thu 06:53 Motorway signs no longer show “REPORT OF COLLISION”
9. Thu 06:53 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 J18yesterday 19:23 · cleared after 46 min
• M4 crash J5–J4B eastboundyesterday 18:15 · cleared after 57 min
• M4 closed J15–J16yesterday 17:50 · cleared after 15 min
• M4 crash J19–J20 westboundyesterday 16:33 · cleared after 1 h 19 min
• M4 reported crash J13–J12 eastboundyesterday 08:00 · cleared after 38 min
• M4 crash Westboundyesterday 07:57 · cleared after 2 h 30 min
• M4 crash Eastboundyesterday 07:57 · cleared after 45 min
• M4 crash J35 eastboundyesterday 07:27 · cleared after 2 h 55 min
• M4 reported crash J15–J14 eastboundMon 22:41 · cleared after 54 min
• M4 crash J8–J10 westboundMon 18:25 · cleared after 46 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.