M40 crash J3–J4 northbound

Cleared Cleared at 18:15 on 9 Oct 2026, after 177 h 46 min.

Crash on the M40 northbound at J3–J4 on Friday 2 October 2026, from 08:29. Cleared at 18:15 after 177 h 46 min. Timeline of reports from the motorway signs and TomTom.

1. !

   M40 northbound · J3–J4

   Collision

   Fri 08:29–18:15 (cleared after 177 h 46 min) · delay ~13 min

   Motorway signs · TomTom

See the M40 on the live map M40 traffic now

Timeline

1. Fri 08:00 Motorway signs: “OBSTRUCTION ON SLIP ROAD”
2. Fri 08:59 Motorway signs no longer show “OBSTRUCTION ON SLIP ROAD”
3. Fri 08:59 All clear: no source reports it any more
4. 17:09 Motorway signs: “OBSTRUCTION ON SLIP ROAD” (reported again)
5. 17:23 TomTom: queueing traffic, “Stationary traffic”, delay ~11 min
6. 17:46 TomTom: now says collision, “Stationary traffic, Accident”
7. 18:09 Motorway signs no longer show “OBSTRUCTION ON SLIP ROAD”
8. 18:15 TomTom no longer reports it
9. 18:15 All clear: no source reports it any more

What the sources said

• Overhead signs read “OBSTRUCTION ON SLIP ROAD” (2 signs; furthest along: M40 northbound between J3 and J4).
• Stationary traffic, Accident

Other recent incidents on the M40

• M40 crash J5–J4 southbound · yesterday 05:49, cleared after 1 h 35 min
• M40 crash J3–J4 northbound · yesterday 05:49, cleared after 1 h 35 min
• M40 crash J5–J4 southbound · Mon 15:44, cleared after 40 min
• M40 crash J1A–J2 northbound · Mon 13:17, cleared after 36 min
• M40 stopped traffic J5–J4 southbound · Sun 14:48, cleared after 4 h 22 min
• M40 reported crash J11 northbound · 1 Oct 2026 21:51, cleared after 35 min
• M40 crash J10 southbound · 1 Oct 2026 12:05, cleared after 1 h 29 min
• M40 crash J16–J15 southbound · 1 Oct 2026 07:26, cleared after 1 h 26 min
• M40 closed J3–J4 · 30 Sept 2026 00:47, cleared after 3 h 45 min
• M40 crash J2–J3 northbound · 29 Sept 2026 19:04, cleared after 1 h 9 min

About this page

This page shows what the data sources reported about this event and when, merged from every source that reported it at the same place. It doesn't say what caused it or whether anyone was hurt: no source reports that. Times are UK time. For live alerts, follow @motorways.me on Bluesky.