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Home › Traffic › M4 traffic › Accident Archive

M4 accidents today, yesterday and the full log

Motorway and A-road collisions from National Highways — free to search. Downloadable evidence reports are coming soon.

M4 accidents: today and yesterday

Checked 21:31 on Monday 19 October 2026.

Is there an accident on the M4 today?

No. No collision has been reported on the M4 since midnight.

What happened on the M4 yesterday?

None. No collision was reported on the M4 yesterday, Sunday 18 October.

Yesterday's M4 log ›

Is the M4 closed right now?

Yes. The M4 is closed now: eastbound J26.

Live M4 traffic ›

From National Highways' live incident feed and our record of every incident they publish. Driver reports are not counted here.

2
Today
14
This Week
93
Severe Total
106
Total Collisions
14 collisions logged in the last 7 days — could one have affected you?
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Downloadable evidence reports — coming soon
Search the full archive free below. Timestamped certificates & court-ready reports for insurance, HR and legal claims are on the way. Get notified & stay ahead with Early Warning →
2 incidents found on M4
M4
Moderate Accident ↺ 1h 34m
M4 - Incident
The M4 eastbound exit slip at junction J14
📅 18 Oct 2026, 16:33 📍 Hungerford, Newbury
📄 View Full Details
M4
Moderate Accident ↺ 24m
M4 - Incident
The M4 eastbound between junctions J16 and J15
📅 18 Oct 2026, 13:55 📍 Swindon, Royal Wootton Bassett
📄 View Full Details

UK Road Accident Data — National Highways

UK Traffic Updates archives every collision, overturned vehicle incident, and vehicle fire recorded by National Highways across England's motorway and strategic road network. Records include timestamps, road closures, duration, severity, and location data.

If you were involved in an accident on a UK motorway or A-road, this archive can help you find the incident record — every record is free to search. Downloadable evidence reports are coming soon.

Powered by National Highways’ Transport Data Feeds. © 2026 UK Traffic Updates.

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UK Traffic Updates is a traffic information and incident monitoring service. We are not a law firm, solicitors, or a claims management company. We do not provide legal advice, assess claims, or manage any part of the legal process.

Our role is limited to connecting individuals who may have been involved in a road traffic incident with independent, regulated solicitors who specialise in personal injury claims. Any solicitor you are connected with operates independently of UK Traffic Updates and is authorised and regulated by the Solicitors Regulation Authority (SRA).

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We detected congestion building on the M4 23 minutes before this incident was officially reported.
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🔍
⚡ Early Warning System
We detected congestion building on the M4 23 minutes before this incident was officially reported.
In the last 30 days, we've detected 250 incidents on the M4 an average of 15 minutes early.
Get Early Warnings for M4 → From £2.99/mo · 7-day free trial