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Map of M4 Motorway Junctions

Map of the M4 motorway junctions.

map of main M4 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".

Latest M4 Traffic News Updates

M4 J13 westbound exit | Westbound | Roadworks
Wed, 1 Oct 2014 04:42:34 BST
M4 Roadworks
The M4 westbound exit slip at junction J13 will be closed , due to roadworks, between 10 pm and 6 am, from 8 October 2014 to 11 October 2014.
M4 J13 eastbound access | Eastbound | Roadworks
Wed, 1 Oct 2014 03:59:06 BST
M4 Roadworks
The M4 eastbound entry slip at junction J13 will be closed , due to roadworks, between 10 pm and 6 am, from 8 October 2014 to 11 October 2014.
M4 J13 westbound access | Westbound | Roadworks
Tue, 30 Sep 2014 07:08:20 BST
M4 Roadworks
The M4 westbound entry slip at junction J13 will be closed , due to roadworks, between 10 pm and 6 am, from 6 October 2014 to 8 October 2014.
M4 J16 eastbound exit | Eastbound | Roadworks
Mon, 29 Sep 2014 19:16:44 BST
M4 Roadworks
On the M4 eastbound exit slip at junction J16 , minor delays are possible due to roadworks closing one lane. Expect disruption until 6:00 am on 2 October 2014.
M4 J13 eastbound exit | Eastbound | Roadworks
Sun, 28 Sep 2014 01:47:40 BST
M4 Roadworks
The M4 eastbound exit slip at junction J13 will be closed , due to roadworks, between 10 pm and 6 am, from 6 October 2014 to 8 October 2014.

Latest M4 Traffic News Updates

Latest M4 News

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