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At a glance

🕐 Last verified 23 Feb, 13:25

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StatusCleared
Severity (NH)Severe
RoadM4
DirectionEastbound
RegionEastern
CountyWindsor and Maidenhead
Category (NH)Accident
ReportedMon 23 Feb, 12:19
Cleared13:25
Lasted1h 5m
Road typeMotorway
Speed limit70 mph (variable)
Weather☁️ Overcast
ReferenceREF-9901387

Times are UK time.

What National Highways say

M4 eastbound between J8 and J7 | Eastbound | Accident

Location : The M4 eastbound between junctions J8 and J7 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Road traffic collision. Status : Currently Active. Time To Clear : The event is expected to clear between 15:45 and 16:00 on 23 February 2026. Return To Normal : Normal traffic conditions are expected between 15:45 and 16:00 on 23 February 2026. Lanes Closed : There is one of four lanes closed.

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

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1 update captured · 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 13:25 UK time on Mon 23 Feb. See the M4 right now.

What happened on the M4 on 23 Feb 2026?

Crash on the M4 eastbound J8 to J7 in Windsor and Maidenhead, reported at 12:19 UK time on Mon 23 Feb. Cleared at 13:25.

How long did it last?

1h 5m, from 12:19 UK time on Mon 23 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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