M25 Traffic

M25 - South Mimms Services

0Accidentsnone in National Highways’ incident data — but the overhead signs show RIGHT TUNNEL CLOSED — see the signs1Roadworks activelive on the M25 right now — see details22Plannedscheduled on the M25 — see details

Live M25 traffic data from National Highways · updated 01:52 Mon 28 Sept 2026

South Mimms Services road sign
M25

M25 - South Mimms Services

Q: Where can I find South Mimms Services on the M25 motorway?

A: At junction 23 the A1M junction on the northern section of the M25 (see map below). Address: M25 Junction 23 Potters Bar EN6 3QQ

South Mimms is also the first stop on the A1(M), which starts here as its Junction 1 — see A1M Traffic if you are heading north.

Q: Who supplies the fuel at these motorway services?

A: BP.

Q: What food and drink services are there?

A: Burger King, Coffee Primo, KFC.

Q: Is there any accommodation available at South Mimms Services?

A: Yes, there is a Days Inn motel telephone no: (being updated).

Q: Who operates South Mimms Services?

A: South Mimms Services is operated by Welcome Break.

Q: Do these services have a website?

A: No.

Map of Where to Find South Mimms Services

Our map below highlights where you can find South Mimms services on the M25 motorway.

Map of where South Mimms services is

Search all the latest M25 traffic news →

Latest accident or incident on the M25

The most recent accident or incident on the M25 that we are aware of.

No accident is listed in National Highways’ incident data for the M25 right now, but the overhead signs are showing: RIGHT TUNNEL CLOSED. See the overhead signs.

Latest active roadworks on the M25

Roadworks live on the M25 right now.

  • A282 Northbound Dartford Crossing East Tunnel closure No access over Dartford Crossing for vehicles over 4.8m

    Active nowRoadworksNorthbound Road closed
    Time now: Monday, 28 September 2026, 01:52

    01:3128 Sept 2026reported 20 min ago

    Location
    A282 northbound Dartford Crossing
    Direction
    Northbound
    Lanes closed
    Carriageway closed
    Reason
    Maintenance work
    Schedule
    22:30 Sun 27 Sept 2026 → 05:30 Mon 28 Sept 2026
    ⏳Expected to clear in ~3h 37m HA planned end: 05:30 Mon 28 Sept 2026
  • Latest planned roadworks on the M25

    The next planned roadworks scheduled on the M25.

  • M25 Anti-Clockwise Jct 29 to Jct 28 lane 4,3,2 closure

    PlannedRoadworksAnticlockwise
    Time now: Monday, 28 September 2026, 01:52

    01:3128 Sept 2026reported 20 min ago

    Location
    M25 anti-clockwise between J30 and J29
    Direction
    Anticlockwise
    Lanes closed
    Lane closures
    Reason
    Roadworks
    Schedule
    22:00 Mon 28 Sept 2026 → 05:30 Tue 29 Sept 2026

    Forecast - not confirmed

    🚧HA scheduled: 22:00 Mon 28 Sept 2026 → 05:30 Tue 29 Sept 2026 starts in about 20 hours · lasts ~7h 30m
  • + 21 more planned roadworks - search all M25 traffic news →

    Road closed — on the overhead signs now

    National Highways’ overhead signs are showing a road closure, as at 01:52 Mon 28 Sept 2026.

    • RIGHT TUNNEL CLOSED

      On the signs now Road closed
      Time now: Monday, 28 September 2026, 01:52

      22:2327 Sept 2026set 3 hrs ago⚠ 3 hrs old✓ Checked by us 01:52

      RIGHT TUNNEL
      CLOSED

      Overhead Message

      WhereA282 anti-clockwise · on 1 sign
      Also onA282 signs only
      SinceSet 22:23 Sun 27 Sept 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 M25 overhead signs →

    Search all the latest M25 traffic news →

    Updated 01:52 Mon 28 Sept 2026

    Powered by National Highways’ Transport Data Feeds.

    M25traffic.co.uk is dedicated to the latest M25 news updated every few minutes, 24 hours a day 7 days a week, 365 days of the year. More features coming. See www.trafficnewsengland.co.uk for ALL ENGLAND traffic news and M1Traffic.co.uk for M1 dedicated news.