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?

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M4 eastbound at the Heston services between J3 and J2 | Eastbound | Congestion
Fri, 22 Nov 2024 08:33:22 GMT
M4 Current Traffic Incidents
Location : The M4 eastbound between junctions J3 and J2 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 08:30 and 08:45 on 22 November 2024. Delay : There are currently delays of 10 minutes against expected traffic.

M4 eastbound between J3 and J2 | Eastbound | Congestion
Fri, 22 Nov 2024 08:11:24 GMT
M4 Current Traffic Incidents
Location : The M4 eastbound between junctions J3 and J2 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 08:00 and 08:15 on 22 November 2024. Delay : There are currently delays of 10 minutes against expected traffic.

M4 J3 westbound exit | Westbound | Road Works
Thu, 21 Nov 2024 22:11:34 GMT
M4 Roadworks
Location : The M4 westbound exit slip at junction J3 . Lane Closures : Lane two will be closed. Reason : Litter clearance is planned. Status : Pending. Schedule : From 22:00 on 28 November 2024 to 05:00 on 29 November 2024. Lanes Closed : There will be one of two lanes closed.

M4 J11 westbound exit | Westbound | Congestion
Fri, 22 Nov 2024 03:17:21 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 03:15 and 03:30 on 22 November 2024. Delay : There are currently delays of 10 minutes against expected traffic.

M4 eastbound at the Heston services between J3 and J2 | Eastbound | Congestion
Fri, 22 Nov 2024 07:19:26 GMT
M4 Current Traffic Incidents
Location : The M4 eastbound between junctions J3 and J2 . Reason : Congestion. Status : Currently Active. Return To Normal : Normal traffic conditions are expected between 07:15 and 07:30 on 22 November 2024. Delay : There are currently delays of 10 minutes against expected traffic.

Map of M4 Motorway Junctions

West M4

East M4

How Do I Find M4 Traffic News?

Latest M4 News