M1 crash J21A–J21 southbound

Crash on the M1 southbound at J21A–J21 on Wednesday 11 November 2026, from 18:50. Cleared at 20:09 after 1 h 19 min. Timeline of reports from the motorway signs.

Status

Cleared 20:09 on 11 Nov 2026, after 1 h 19 min

Location

M1 southbound · J21A–J21

Reported as

Collision

Sources

Motorway signs

Timeline

1. yesterday 18:50 Motorway signs: “COLLISION ON SLIP ROAD”
2. yesterday 20:09 Motorway signs no longer show “COLLISION ON SLIP ROAD”
3. yesterday 20:09 All clear: no source reports it any more

Source reports

• Overhead signs read “COLLISION ON SLIP ROAD” (1 sign; furthest along: M1 southbound between J21A and J21).

Other recent incidents on the M1

• M1 stopped traffic J36–J37 northbound13:45 · Live
• M1 crash J11 northbound11:03 · cleared after 1 h 49 min
• M1 crash J24A northbound07:14 · cleared after 27 min
• M1 crash J16–J17 northbound06:39 · cleared after 40 min
• M1 crash J11–J11A northbound06:11 · cleared after 4 h 41 min
• M1 crash J6A–J8 northboundyesterday 22:39 · cleared after 39 min
• M1 reported crash J23A northboundyesterday 19:28 · cleared after 49 min
• M1 stopped traffic J16–J17 northboundyesterday 19:28 · cleared after 5 h 51 min
• M1 crash J23–J22 southboundyesterday 16:59 · cleared after 51 min
• M1 closed J6A–J6 southboundyesterday 10:44 · cleared after 42 min

Live traffic and past incidents at M1 J21A and M1 J21.

The sources don't report causes or injuries, so neither does this page. Times are UK time. For alerts, follow @motorways.me on Bluesky.