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At a glance

🕐 Last verified 28 Aug, 23:06

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StatusCleared
Severity (NH)Severe
RoadM25
RegionHertfordshire
ReportedFri 28 Aug, 19:15
Cleared23:51
Lasted4h 35m
Road typeMotorway
Speed limit70 mph (variable)
Weather🌦️ Light drizzle
ReferenceREF-26220694
Views354

Times are UK time.

What National Highways say

M25 | Hertfordshire | Carriageway Closure | Expect Delays

The M25 in Hertfordshire is closed in both directions between J21a (St Albans) and J22 (London Colney) for a police led incident

The official National Highways record of this incident, kept here after the road reopens.

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17 updates captured · Cleared

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Recent M25 incidents

330 incidents and roadworks logged on the M25 in the last 30 days, 136 of them serious or severe. Times are UK time.

M25 | Surrey | Carriageway Closure | Expect DelaysThu 3 Sep, 12:46 M25 | Essex | Carriageway Closure | Expect DelaysWed 2 Sep, 16:53 M25 | Surrey | Carriageway Closure | Long Delays 30 minutesTue 1 Sep, 00:24 M25 | Hertfordshire | Carriageway Closure | Expect DelaysMon 24 Aug, 04:36 M25 | Essex | Carriageway Closure | Long Delays 60 minutesWed 12 Aug, 16:50 M25 | Hertfordshire | Carriageway Closure | Long Delays 60 minutesTue 11 Aug, 10:32
Every M25 incident

Common questions

Is the M25 closed?

Not because of this incident. It cleared at 23:51 UK time on Fri 28 Aug. See the M25 right now.

What happened on the M25 on 28 Aug 2026?

Incident on the M25 in Hertfordshire, reported at 19:15 UK time on Fri 28 Aug. Cleared at 23:51.

How long did it last?

4h 35m, from 19:15 UK time on Fri 28 Aug.

Where can I see everything else on the M25?

The M25 live page shows what is happening now, and the M25 archive has every incident on record.

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