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At a glance

🕐 Last verified 25 Feb, 16:40

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StatusCleared
Severity (NH)Severe
RoadM4
DirectionEastbound
RegionEastern
CountyWindsor and Maidenhead
Category (NH)Accident
ReportedWed 25 Feb, 15:33
Cleared16:40
Lasted1h 6m
Road typeMotorway
Speed limit70 mph (variable)
Weather⛅ Partly cloudy
ReferenceREF-12574673

Times are UK time.

What National Highways say

M4 J8 eastbound access | Eastbound | Accident

Location : The M4 eastbound entry slip at junction J8 . Lane Closures : Lane one is closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 18:30 and 18:45 on 25 February 2026. Return To Normal : Normal traffic conditions are expected between 18:30 and 18:45 on 25 February 2026. Lanes Closed : There is one of two lanes closed.

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

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Live Incident Timeline

1 update captured · 2 affected segments · Cleared

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Recent M4 incidents

183 incidents and roadworks logged on the M4 in the last 30 days, 56 of them serious or severe. Times are UK time.

M4 | Berkshire | Carriageway Closure | DelaysWed 9 Sep, 21:42 M4 | Berkshire | Carriageway Closure | Long Delays 30 minutesWed 9 Sep, 21:42 M4 | Greater London | Carriageway ClosureWed 9 Sep, 01:27 M4 | Gloucestershire | Road Closure | Expect DelaysWed 2 Sep, 22:45 M4 | Wiltshire | Carriageway Closure | Expect DelaysSat 15 Aug, 02:59 M4 | Wiltshire | Carriageway Closure | Expect DelaysThu 6 Aug, 09:35
Every M4 incident

Common questions

Is the M4 closed?

Not because of this crash. It cleared at 16:40 UK time on Wed 25 Feb. See the M4 right now.

What happened on the M4 on 25 Feb 2026?

Crash on the M4 eastbound at J8 in Windsor and Maidenhead, reported at 15:33 UK time on Wed 25 Feb. Cleared at 16:40.

How long did it last?

1h 6m, from 15:33 UK time on Wed 25 Feb.

Where can I see everything else on the M4?

The M4 live page shows what is happening now, and the M4 archive has every incident on record.

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