M4 Traffic News
Latest M4 Traffic News and Updates
M4 Roadworks Information
M4 Traffic Delays M4 Accidents
Map of M4 Motorway Junctions
Map of the M4 motorway junctions.
West M4
To the West the M4 joins the M5 at M4 Junction 20 which heads north to Devon Cornwall and the South West of England.
The Western end of the M4 is in South Wales Junctions 23 to 48. Bridgend is on Junctions 25 to 37, M4 Junctions 44 and 45 for Swansea, Junctions 30 to 33 for Cardiff and Junctions 24 to 28 for Newport.
East M4
At the eastern end of the M4 is London, with Junctions for Slough, Reading, Newbury, Swindon and Bristol on the way to Wales in the West.
How Do I Find M4 Traffic News?
Simply type the search words in the search facility towards the top right of this page and click "search".
The most recent accident or incident on the M4 that we are aware of.
Roadworks live on the M4 right now.
-
M4 Eastbound Jct 3 to Jct 1 Carriageway closure
Time now: Wednesday, 29 July 2026, 03:3003:2929 Jul 2026reported just now
- Location
- M4 J2 eastbound access
- Direction
- Eastbound
- Lanes closed
- Carriageway closed
- Reason
- Roadworks
- Schedule
- 22:00 Tue 28 Jul → 05:30 Wed 29 Jul
⏳Expected to clear in ~1h 59m HA planned end: 05:30 Wed 29 Jul
The next planned roadworks scheduled on the M4.
-
M4 Eastbound Jct 4 to Jct 3 lane 2,3 closure
Time now: Wednesday, 29 July 2026, 03:3003:2929 Jul 2026reported just now
- Location
- M4 eastbound between J4 and J3
- Direction
- Eastbound
- Lanes closed
- Lane closures
- Reason
- Roadworks
- Schedule
- 22:00 Wed 29 Jul → 05:30 Thu 30 Jul
Forecast — not confirmed
🚧HA scheduled: 22:00 Wed 29 Jul → 05:30 Thu 30 Jul starts in about 18 hours · lasts ~7h 30m
Updated 03:30, Wed 29 Jul 2026
Powered by National Highways' Transport Data Feeds.
Latest M4 News
Search using keywords such as eastbound,westbound, J3, roadworks, congestion, accident etc.
It is COMPLETELY FREE to use and search M4 Traffic
Home | See All The Latest M4 Traffic News | Map of the M4 Motorway Junctions | About M4 Traffic | Contact Us
Copyright 2026 - M4 Traffic.co.uk - All Rights Reserved | Privacy Policy
Credits: We would like to thank the Highways Agency for traffic information provided on this site