M4

The M4 motor­way is part of both the Eng­lish and Welsh road net­work, con­nect­ing Lon­don to South Wales.

Major des­ti­na­tions directly acces­si­ble from the M4 junc­tions include Heathrow Air­port, Read­ing, Swin­don, Bris­tol, New­port, Cardiff and Swansea.

There are 120.7 miles of the M4 motor­way in Eng­land, includ­ing the sec­ond Sev­ern Cross­ing which opened in 1996. The orig­i­nal Sev­ern cross­ing built in 1966 is now car­ries the M48.

M4 Traffic Information

Status : Pending. Lane Closures : Lanes 1 and 2 will be closed. Schedule : From 22:00 on 23 January 2017 to 06:00 on 24 January 2017. Location : The M4 westbound between junctions J5 and J6 . Lanes Closed : There will be two of three lanes closed. Reason : Roadworks are planned.

[View Traffic England page...]

Location : The M4 eastbound between junctions J13 and J12 . Status : Pending. Schedule : Expect disruption everyday between 09:00 and 17:00 from 23 January 2017 to 27 January 2017. Reason : Roadworks are planned.

[View Traffic England page...]

Status : Pending. Lane Closures : Lane two will be closed. Schedule : Expect disruption everyday between 22:00 and 06:00 from 23 January 2017 to 28 January 2017. Location : The M4 eastbound exit slip at junction J5 . Lanes Closed : There will be one of two lanes closed. Reason : Roadworks are planned.

[View Traffic England page...]

Location : The M4 eastbound between junctions J8 and J7 . Status : Pending. Schedule : From 09:00 on 23 January 2017 to 17:00 on 23 January 2017. Reason : Roadworks are planned.

[View Traffic England page...]

Status : Pending. Lane Closures : Lanes 2 and 3 will be closed. Schedule : From 22:00 on 20 January 2017 to 06:00 on 21 January 2017. Location : The M4 eastbound between junctions J10 and J7 . Lanes Closed : There will be two of three lanes closed. Reason : Roadside drains works are planned.

[View Traffic England page...]

M4 Road Projects

M4 junction 10 bridge refurbishment

Essen­tial bridge recon­struc­tion work to the bridges which carry the link roads between the A329(M) and the M4 motorway

[View road project page...]
M4 J19 - 20 Winterbourne Lane Underbridge

Repairs to stop water leak­age caus­ing cor­ro­sion to the under­side of the bridge

[View road project page...]
M4 Chieveley Bridge Refurbishment Schemes

Refur­bish­ment of three bridges at M4 Chieveley

[View road project page...]
M4 Junction 10 Congestion Relief Improvement

A scheme will improve the links between the M4 and A329(M), to pro­vide increased capac­ity at the junc­tion and improve traf­fic flows.

[View road project page...]
M4 Junctions 3-12

We pro­pose to improve the M4 by mak­ing it a “smart motor­way” between junc­tions 3 and 12. Smart motor­ways help relieve con­ges­tion by using technology

[View road project page...]