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 westbound between J13 and J14 | Westbound | Bridge or Barrier Repairs
Tue, 11 Mar 2014 02:07:54 GMT
Latest M4 Traffic News - Highways Agency
On the M4 westbound between junctions J13 and J14, minor delays can be expected at peak times due to barrier repairs closing one lane, from 12:05 am on 11 March 2014 to 6 am on 11 March 2014.

M4 westbound between J1 and J2 | Westbound | Roadworks
Mon, 10 Mar 2014 23:15:12 GMT
Latest M4 Traffic News - Highways Agency
The M4 westbound will be closed between junctions J1 and J3, due to roadworks, between 10 pm and 5 am, from 10 March 2014 to 14 March 2014.

M4 J2 westbound access | Westbound | Roadworks
Mon, 10 Mar 2014 22:49:35 GMT
Latest M4 Traffic News - Highways Agency
The M4 westbound entry slip at junction J2 will be closed , due to roadworks, between 10 pm and 5 am, from 10 March 2014 to 14 March 2014.

link road from M5 J15 southbound to M4 J20 eastbound | Eastbound | Roadworks
Mon, 10 Mar 2014 21:20:16 GMT
Latest M4 Traffic News - Highways Agency
The M4 eastbound entry slip at junction J20 from M5 south will be closed , due to roadworks, between 8 pm and 6 am, from 8 March 2014 to 17 March 2014.

M4 westbound between J17 and J18 | Westbound | Roadworks
Sun, 9 Mar 2014 17:44:22 GMT
Latest M4 Traffic News - Highways Agency
The M4 westbound will be closed between junctions J17 and J18, due to roadworks, from 4 am on 16 March 2014 to 9 am on 16 March 2014.

Map of M4 Motorway Junctions

West M4

East M4

How Do I Find M4 Traffic News?

Latest M4 News