M25 crash J17–J16 anticlockwise
Cleared Cleared at 17:06 on 7 Oct 2026, after 5 h 20 min.
Crash on the M25 anticlockwise at J17–J16 on Wednesday 7 October 2026, from 11:47. Cleared at 17:06 after 5 h 20 min. Timeline of reports from the motorway signs, TomTom and National Highways.
M25 anticlockwise · J17–J16
Collision
1 of 5 lanes closed · yesterday 11:47–yesterday 17:06 (cleared after 5 h 20 min) · delay ~13 min · queue 9.3 mi
Motorway signs ×4 · TomTom ×6 · National Highways ×3
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Timeline
- Motorway signs: “COLLISION SLOW DOWN”
- National Highways: 1 of 5 lanes closed
- TomTom: queueing traffic, “Stationary traffic”, delay ~84 min
- TomTom: queueing traffic, “Stationary traffic”, delay ~16 min
- TomTom: delay now ~22 min (was ~16), “Queuing traffic”
- Motorway signs: “M25 J17-J16 LANES CLOSED DUE TO COLLISION”
- TomTom: “Slow traffic”
- National Highways: 1 of 5 lanes closed
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- Motorway signs: “STRANDED VEHICLE-SLOW”
- National Highways: 1 of 5 lanes closed
- Motorway signs: “DEBRIS IN ROAD - SLOW”
- TomTom: delay now ~15 min (was ~25), “Queuing traffic”
- TomTom: delay now ~9 min (was ~15), “Slow traffic”
- TomTom: queueing traffic, “Slow traffic”, delay ~3 min
- TomTom: delay now ~12 min (was ~7)
- TomTom: “Queuing traffic”
- TomTom: queueing traffic, “Queuing traffic”, delay ~13 min
- Motorway signs no longer show “COLLISION SLOW DOWN”
- Motorway signs no longer show “M25 J17-J16 LANES CLOSED DUE TO COLLISION”
- TomTom: “Stationary traffic”
- TomTom: “Queuing traffic”
- TomTom: delay now ~22 min (was ~8)
- TomTom: “Slow traffic”
- National Highways: lane closure lifted
- Motorway signs no longer show “STRANDED VEHICLE-SLOW”
- Motorway signs no longer show “DEBRIS IN ROAD - SLOW”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Queuing traffic”
- TomTom: “Slow traffic”
- TomTom: “Stationary traffic”
- TomTom: “Queuing traffic”
- TomTom: queueing traffic, “Slow traffic”, delay ~9 min
- TomTom: queueing traffic, “Queuing traffic”, delay ~13 min
- TomTom: “Stationary traffic”
- TomTom: “Queuing traffic”
- TomTom no longer reports it
- All clear: no source reports it any more
What the sources said
- Overhead signs read “COLLISION SLOW DOWN” (3 signs; furthest along: M25 anti-clockwise between J17 and J16).
- Slow traffic
- Queuing traffic
- M25 anti-clockwise between J17 and J16
- Overhead signs read “M25 J17-J16 LANES CLOSED DUE TO COLLISION” (1 sign; e.g. M25 anti-clockwise between J24 and J23). Marker placed near M25 J17–J16 using the signs there, so it is approximate.
- Overhead signs read “STRANDED VEHICLE-SLOW” (2 signs; furthest along: M25 anti-clockwise within J14).
- Overhead signs read “DEBRIS IN ROAD - SLOW” (1 sign; furthest along: M25 anti-clockwise between J16 and J15).
- Stationary traffic
Other recent incidents on the M25
- M25 delays J10–J11 clockwise
- M25 reported crash J8–J7 anticlockwise
- M25 crash J8 anticlockwise
- M25 crash J8–J7 anticlockwise
- M25 crash J7 anticlockwise
- M25 crash J7 clockwise
- M25 crash J27–J28 clockwise
- M25 crash J2–J3 clockwise
- M25 crash J13 clockwise
- M25 crash J19–J18 anticlockwise
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.