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At a glance

🕐 Last verified 11 May, 11:09

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StatusLive
Severity (NH)Severe
RoadM4
DirectionEastbound
RegionEastbound
Category (NH)Crash
ReportedMon 11 May, 11:09
DelayLong delays (30 min)
Road typeMotorway
Speed limit70 mph (variable)
Weather⛅ Partly cloudy
ReferenceREF-25866015
Views143

Times are UK time.

What National Highways say

M4 eastbound between J17 and J16 | Eastbound | Congestion

Location : The M4 eastbound between junctions J18 and J16 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 11:00 and 11:15 on 11 May 2026. Cause : Road traffic collision. Delay : There are currently delays of 30 minutes against expected traffic.

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

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Recent M4 incidents

182 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?

This crash had not closed the road at 16:45 UK time on Tue 3 Nov 2026, according to National Highways. See the M4 right now.

What happened on the M4 on 11 May 2026?

Crash on the M4 eastbound J17 to J16 in Eastbound, reported at 11:09 UK time on Mon 11 May. Long delays (30 min). Still live.

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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