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M25 Moderate Cleared

M25 J21A anti-clockwise exit | Anti-Clockwise | Congestion

17 Jun 2026, 16:50 Anti-Clockwise 103 views

Incident Details

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

M25
Moderate
Cleared
16:50, 17 Jun 2026

📜 Incident timeline

· First report

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 35 minutes. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 1h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 1h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 2h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 3h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 3h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 4h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 4h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 5h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 5h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 6h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 7h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 8h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 9h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 10h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 10h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 11h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 11h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 12h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 13h 40m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 14h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 15h 30m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 5m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 16h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 17h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 18h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 19h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 20h 25m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 0m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 21h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 22h 10m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 22h 45m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 33h 20m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 33h 55m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 34h 50m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

· Update

⏱ Still active — no changes from National Highways. Incident ongoing for 35h 35m. Delays of 10 minutes still recorded. Monitoring continues.

· Update

Location : The M25 anticlockwise exit slip at junction J21A .
Reason : Congestion.
Status : Currently Active.
Return To Normal : Normal traffic conditions are expected between 16:45 and 17:00 on 17 June 2026.
Delay : There are currently delays of 10 minutes against expected traffic.

Wording as published by National Highways, recorded as it changed.

📢 Share This Incident

M25 — M25 J21A anti-clockwise exit | Anti-Clockwise | Congestion Full details 👉 https://uktrafficupdates.uk/traffic/incidents/26114849-m25-j21a-anti-clockwise-exit-anti-clockwise-congestion/

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