M1 crash J23A southbound
Cleared Cleared at 12:30 on 27 Sept 2026, after 1 h 5 min.
Crash on the M1 southbound at J23A on Sunday 27 September 2026, from 11:26. Cleared at 12:30 after 1 h 5 min. Timeline of reports from TomTom and the motorway signs.
M1 southbound · J23A
Collision
11:26–12:30 (cleared after 1 h 5 min) · delay ~4 min · queue 3.9 mi
TomTom · Motorway signs
See the M1 on the live map M1 traffic now
Timeline
- Motorway signs: “COLLISION SLOW DOWN”
- TomTom: queueing traffic, “Stationary traffic”, delay ~9 min
- TomTom: now says collision, delay now ~21 min (was ~12), “Stationary traffic, Incident”
- TomTom: delay now ~9 min (was ~17), “Queuing traffic, Incident”
- TomTom: now says queueing traffic, delay now ~4 min (was ~9), “Slow traffic”
- TomTom no longer reports it
- Motorway signs no longer show “COLLISION SLOW DOWN”
- All clear: no source reports it any more
What the sources said
- Slow traffic
- Overhead signs read “COLLISION SLOW DOWN” (1 sign; furthest along: M1 southbound within J23A).
Other recent incidents on the M1
- M1 stopped traffic J12–J13 northbound
- M1 reported crash J20–J19 southbound
- M1 crash J6–J5
- M1 closed J10–J11 northbound
- M1 stopped traffic J12–J11A
- M1 crash J22–J21A southbound
- M1 reported crash J43–J42 southbound
- M1 crash J47 northbound
- M1 reported crash J8 northbound
- M1 closed J12–J13
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.