M3 crash J3–J4 westbound
Cleared Cleared at 18:29 on 7 Oct 2026, after 1 h 24 min.
Crash on the M3 westbound at J3–J4 on Wednesday 7 October 2026, from 17:05. Cleared at 18:29 after 1 h 24 min. Timeline of reports from TomTom, the motorway signs and National Highways.
M3 westbound · J3–J4
Collision
1 of 4 lanes closed · yesterday 17:05–yesterday 18:29 (cleared after 1 h 24 min) · delay ~7 min · queue 5.3 mi
TomTom · Motorway signs ×2 · National Highways
See the M3 on the live map M3 traffic now
Timeline
- Motorway signs: “COLLISION”
- National Highways: 1 of 4 lanes closed
- TomTom: queueing traffic, “Slow traffic”, delay ~4 min
- TomTom: “Queuing traffic”
- Motorway signs: “COLLISION [HCA0]”
- TomTom: “Stationary traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: delay now ~16 min (was ~7), “Stationary traffic”
- National Highways: lane closure lifted
- TomTom: “Queuing traffic”
- Motorway signs no longer show “COLLISION”
- Motorway signs no longer show “COLLISION [HCA0]”
- TomTom: delay now ~9 min (was ~14), “Slow traffic”
- TomTom no longer reports it
- All clear: no source reports it any more
What the sources said
- Slow traffic
- Overhead signs read “COLLISION” (1 sign; furthest along: M3 westbound between J3 and J4).
- M3 westbound between J3 and J4
- Overhead signs read “COLLISION [HCA0]” (4 signs; furthest along: M3 westbound between J3 and J4).
Other recent incidents on the M3
- M3 closed J13–J14
- M3 crash J3–J4 westbound
- M3 crash J4A eastbound
- M3 reported crash J11 eastbound
- M3 crash J3–J2 eastbound
- M3 crash J12–J13 westbound
- M3 crash J3–J2 westbound
- M3 crash J2–J3 westbound
- M3 crash J11–J12 westbound
- M3 crash J4–J4A westbound
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.