M1 Traffic

Facts About the M1 Motorway

0Accidentsnone in National Highways’ incident data — but the overhead signs show M1 CLOSED J9-J11A M25 CLOSED J25-J26 — see the signs15Roadworks activelive on the M1 right now — see details19Plannedscheduled on the M1 — see details

Live M1 traffic data from National Highways · updated 23:42 (11:42pm) Wed 21 Oct 2026

M1 motorway sign Facts About the M1 Motorway

Our M1 "interesting facts" page we feature many of the interesting facts about the M1 motorway.

M1 Motorway Facts & History

The first section of the M1 opened in 1959 and the motorway was completed in 1999.

The M1 is one of the UK's busiest motorways running from London in the South to Leeds in the north of England.

The M1 is just over 194 miles long and has 48 Junctions.

In March 1972, 200 vehicles crashed north of Luton on the M1 in thick fog resulting in 9 deaths.

On 8 January 1989, 47 passengers on a Boeing 737 died when it crashed onto the embankment of the M1 whilst attempting an emergency landing at East Midlands Airport in Leicestershire.

On 6 September 1997, large sections of the northbound M1 carriageway were closed between London and Althorp, Northamptonshire to allow for the funeral procession of Diana, Princess of Wales. Police allowed pedestrians onto the normally busy M1 northbound carriageway almost the entire length of the route to pay their respects.

In 2002, a section of the M1 near Milton Keynes was cleared using mobile police roadblocks to allow for filming of the movie 28 Days Later.

On 11 December 2005, an 18 mile stretch of the M1 motorway was closed entirely during the morning following a major explosion and fire at the Buncefield Oil Depot which is less than half a mile from the M1 (We heard it and remember it well we thought a plane had crashed due to the amount of smoke covering the sky!).

In June 2007, the section of M1 between Junctions 32 and 36 was closed for a number of days after the Ulley Reservoir developed cracks after being deluged by floods.

In August 2008 part of the M1 motorway close to Tinsley Viaduct was closed to allow safe demolition of the Tinsley cooling towers.

On 15 April 2011, a seven mile stretch of the M1 was closed between Junctions 1 and 4 due to a fire at a scrap yard underneath the motorway. The road was fully re-opened early on 21 April 2011 with a 50 mph speed limit in force whilst repair work continued to an elevated section.

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Latest accident or incident on the M1

The most recent accident or incident on the M1 that we are aware of.

No accident is listed in National Highways’ incident data for the M1 right now, but the overhead signs are showing: M1 CLOSED J9-J11A M25 CLOSED J25-J26. See the overhead signs.

Latest active roadworks on the M1

Roadworks live on the M1 right now.

  • M1 northbound Jct 44 to Jct 46 Lane 2 and 3 closure (303/2 311/4)

    Active nowRoadworksNorthbound
    Time now: Wednesday, 21 October 2026, 23:42 (11:42pm)

    23:23 (11:23pm)21 Oct 2026reported 19 min ago

    Location
    M1 northbound between J43 and J44
    Direction
    Northbound
    Lanes closed
    Lane closures
    Reason
    Tree and vegetation cutting work
    Schedule
    20:00 (8pm) Wed 21 Oct 2026 → 06:00 (6am) Thu 22 Oct 2026
    ⏳Expected to clear in ~6h 17m HA planned end: 06:00 (6am) Thu 22 Oct 2026
  • + 14 more active roadworks - search all M1 traffic news →

    Latest planned roadworks on the M1

    The next planned roadworks scheduled on the M1.

  • M1 Jct 25 exit slip road lane closure southbound

    PlannedRoadworksSouthbound Slip road closed
    Time now: Wednesday, 21 October 2026, 23:42 (11:42pm)

    23:23 (11:23pm)21 Oct 2026reported 19 min ago

    Location
    M1 southbound between J26 and J25
    Direction
    Southbound
    Lanes closed
    Slip road closed
    Reason
    Maintenance work
    Schedule
    20:00 (8pm) Wed 21 Oct 2026 → 06:00 (6am) Thu 22 Oct 2026

    Forecast - not confirmed

    🚧HA scheduled: 20:00 (8pm) Wed 21 Oct 2026 → 06:00 (6am) Thu 22 Oct 2026 underway until 06:00 (6am) Thu 22 Oct 2026
  • + 18 more planned roadworks - search all M1 traffic news →

    Road closed — on the overhead signs now

    National Highways’ overhead signs are showing a road closure, as at 23:42 (11:42pm) Wed 21 Oct 2026. 7 other serious messages are on the signs - see them all below.

    • M1 CLOSED J9-J11A M25 CLOSED J25-J26

      On the signs now Road closed
      Time now: Wednesday, 21 October 2026, 23:42 (11:42pm)

      23:37 (11:37pm)21 Oct 2026set 4 min ago✓ Checked by us 23:42 (11:42pm)

      M1 CLOSED J9-J11A
      M25 CLOSED J25-J26

      Overhead Message

      WhereM1 northbound and southbound, J1 to J10 · on 12 signs
      Also onAlso showing on M25 and M40 signs
      SinceOn the signs since at least 22:22 (10:22pm) Wed 21 Oct 2026
      We check these overhead signs at least every five minutes, but we can't guarantee a sign is still current if an incident or issue has been cleared and the sign has not been updated yet. Signs and news can each carry something the other does not - check both before you travel.

    See all the M1 overhead signs

    Search all the latest M1 traffic news

    Updated 23:42 (11:42pm) Wed 21 Oct 2026

    Powered by National Highways’ Transport Data Feeds.

    Where the M1 meets other motorways

    The M1 meets the M25 at its junction 6A (M25 junction 21A), the M45 at junction 17, the M6 and the A14 at junction 19 (Catthorpe), the M69 at junction 21, the A42 for the M42 at junction 23A, the M18 at junction 32, the M62 at junction 42 and the M621 at junction 43. It then ends after junction 48, where it runs into the A1(M) at the A1(M)’s junction 43 near Micklefield — so the M1 and the A1 finally join east of Leeds. For the A-roads that link the two on the way, see our M1 and A1 link roads page.

    M1traffic.co.uk is dedicated to the latest M1 traffic news, checked every five minutes, 24 hours a day. The M1 meets the M25 at Junction 6a — see M25 Traffic, and Traffic News England for traffic news across all of England.