M25 crash J23–J24 clockwise
Cleared Cleared at 12:55 on 23 Sept 2026, after 6 h 21 min.
Crash on the M25 clockwise at J23–J24 on Wednesday 23 September 2026, from 06:35. Cleared at 12:55 after 6 h 21 min. Timeline of reports from TomTom, the motorway signs and National Highways.
M25 clockwise · J23–J24
Collision
1 of 4 lanes closed · Wed 06:35–Wed 12:55 (cleared after 6 h 21 min) · delay ~3 min · queue 2.9 mi
TomTom ×5 · Motorway signs ×5 · National Highways
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Timeline
- TomTom: collision, “Stationary traffic, Accident”, delay ~17 min
- Motorway signs: “COLLISION ON SLIP ROAD[HCA0]”
- Motorway signs: “INCIDENT [HCA2]”
- TomTom: now says queueing traffic, delay now ~5 min (was ~17), “Queuing traffic”
- TomTom no longer reports it
- TomTom: queueing traffic, “Slow traffic”, delay ~3 min (reported again)
- TomTom no longer reports it
- TomTom: collision, “Accident, Lane closed”
- TomTom: collision, “Accident, Lane closed”
- TomTom: collision, “Accident, Lane closed”
- Motorway signs: “COLLISION [HCA0]”
- Motorway signs no longer show “COLLISION ON SLIP ROAD[HCA0]”
- Motorway signs no longer show “INCIDENT [HCA2]”
- TomTom: queueing traffic, “Queuing traffic”, delay ~3 min
- Motorway signs: “COLLISION”
- National Highways: 1 of 4 lanes closed
- TomTom: now says collision, delay now ~16 min (was ~3), “Stationary traffic, Accident”
- Motorway signs: “INCIDENT”
- TomTom: collision, “Accident, Lane closed” (reported again)
- TomTom: delay now ~4 min (was ~16), “Slow traffic, Accident”
- TomTom: “Heavy traffic, Accident”
- Motorway signs no longer show “COLLISION”
- National Highways: lane closure lifted
- TomTom no longer reports it
- Motorway signs no longer show “COLLISION [HCA0]”
- Motorway signs no longer show “INCIDENT”
- All clear: no source reports it any more
What the sources said
- Slow traffic
- Overhead signs read “COLLISION ON SLIP ROAD[HCA0]” (1 sign; furthest along: M25 clockwise between J23 and J24).
- Overhead signs read “INCIDENT [HCA2]” (1 sign; furthest along: M25 clockwise within J24).
- Accident, Lane closed
- Overhead signs read “COLLISION [HCA0]” (1 sign; furthest along: M25 clockwise within J24).
- Heavy traffic, Accident
- Overhead signs read “COLLISION” (1 sign; furthest along: M25 clockwise between J23 and J24).
- Overhead signs read “INCIDENT” (1 sign; furthest along: M25 clockwise between J23 and J24).
- M25 clockwise between J23 and J24
Other recent incidents on the M25
- M25 reported crash J13–J12 anticlockwise
- M25 stopped traffic J17
- M25 crash J27–J28 clockwise
- M25 crash J3–J2 anticlockwise
- M25 crash J13–J12 anticlockwise
- M25 stopped traffic J17 anticlockwise
- M25 closed J24–J25 clockwise
- M25 reported crash J21A–J22 clockwise
- M25 crash J9–J8 anticlockwise
- M25 reported crash J8–J9 clockwise
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.