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".

M4 eastbound within J22 | Eastbound | Road Works
Wed, 24 Apr 2024 08:52:17 GMT
M4 Roadworks
Location : The M4 eastbound at junction J22 . Lane Closures : Lane two will be closed. Reason : Barrier repairs are planned. Status : Pending. Schedule : From 22:00 on 29 April 2024 to 06:00 on 30 April 2024. Lanes Closed : There will be one of two lanes closed.

M4 J3 eastbound access | Eastbound | Road Works
Wed, 24 Apr 2024 08:41:05 GMT
M4 Roadworks
Location : The M4 eastbound entry slip at junction J3 . Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 09:30 and 16:00 from 1 May 2024 to 2 May 2024.

M4 J11 westbound exit | Westbound | Congestion
Wed, 24 Apr 2024 07:43:37 GMT
M4 Current Traffic Incidents
Location : The M4 westbound exit slip at junction J11 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 08:45 and 09:00 on 24 April 2024. Delay : There are currently delays of 10 minutes against expected traffic.

M4 westbound within J10 before A329(M) eastbound access | Westbound | Broken down vehicle
Wed, 24 Apr 2024 07:55:53 GMT
M4 Current Traffic Incidents
Location : The M4 westbound at junction J10 . Lane Closures : The hard shoulder and lane 1 are closed. Reason : Broken down vehicle. Status : Currently Active. Time To Clear : The event is expected to clear between 09:30 and 09:45 on 24 April 2024. Return To Normal : Normal traffic conditions are expected between 09:30 and 09:45 on 24 April 2024. Lanes Closed : There is one of three lanes closed.

M4 eastbound between J3 and J2 | Eastbound | Road Works
Wed, 24 Apr 2024 08:41:05 GMT
M4 Roadworks
Location : The M4 eastbound between junctions J3 and J2 . Reason : Emergency barrier repairs are planned. Status : Pending. Schedule : Expect disruption everyday between 09:30 and 16:00 from 1 May 2024 to 2 May 2024.

Map of M4 Motorway Junctions

West M4

East M4

How Do I Find M4 Traffic News?

Latest M4 News