M4 eastbound Jct 22 to Jct 23 Prince of Wales bridge - lane closure 201/8-198/1

Planned

Start time: Thu, Aug 6, 2026 7:00 PM
Expected end: Fri, Aug 7, 2026 5:00 AM
Duration: 10 hours
Road: M4 – M4 Eastbound Between J23 And J22
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

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First published: Mon, Aug 3, 2026 3:45 PM
Last updated: Thu, Aug 6, 2026 9:13 AM
Cleared: Fri, Aug 7, 2026 5:00 AM

Latest update: M4 eastbound Jct 22 to Jct 23 Prince of Wales bridge - lane closure 201/8-198/1

Coordinates: 51.579852, -2.723794
Latitude span: 51.573397 – 51.582446
Longitude span: -2.743110 – -2.696502
Bounding box centre: 51.577922, -2.719806
Location descriptions: M4 eastbound between J23 and J22

Feed validity status: Planned
Overall feed start: Thu, Aug 6, 2026 7:00 PM
Overall feed end: Fri, Aug 7, 2026 5:00 AM
Feed window length: 10 hours
Probability code (raw): probable
Compliance option (raw): mandatory
Source identification (raw): roadworks

Management type value: other
Contra-flow flag (raw): false
Width restriction flag (raw): false
Height restriction flag (raw): false
Weight restriction flag (raw): false

Segment 1

29 coordinate pairs

Description: M4 eastbound between J23 and J22
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {26F7B1EB-E1EC-C102-A496-53FA1CA628CC}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 2,626 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.582383 -2.74311
51.582439 -2.741728
51.582445 -2.739507
51.582446 -2.739085
51.582431 -2.738662
51.582376 -2.73716
51.582361 -2.736739
51.582231 -2.734821
51.582217 -2.734655
51.58207 -2.733146
51.581945 -2.732131
51.581876 -2.731576
51.581667 -2.730079
51.58154 -2.72917
51.581375 -2.728267
51.581358 -2.728178
51.581348 -2.728119
51.581227 -2.727462
51.58112 -2.726949
51.580912 -2.72596
51.580839 -2.725607
51.580752 -2.725251
51.580468 -2.724075
51.580318 -2.723457
51.578445 -2.716168
51.577552 -2.712695
51.57717 -2.71121
51.576125 -2.707145
51.576094 -2.707009

Segment 2

6 coordinate pairs

Description: M4 eastbound between J23 and J22
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 2 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {BA3489E5-7B97-4254-B2FF-E01622524675}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 787 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.576094 -2.707009
51.576069 -2.70691
51.575788 -2.705823
51.574242 -2.699796
51.573685 -2.697623
51.573397 -2.696502

Geometry type: MultiLineString
Geometry points: 35
First coordinate pair: -2.743110, 51.582383
Road section segments: 1
Road section points: 35

View geometry JSON

{
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                51.582445
            ],
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        ]
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}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other

Feed provider: National Highways
Data source: Roadworks
Feed version: 1
Record created: Mon, Aug 3, 2026 3:45 PM
Record versioned: Thu, Aug 6, 2026 9:13 AM
Coordinate source: Geometry

Driving on the M4? See every live closure, roadwork and planned restriction on this road.

M4 live closures

Related incidents

: Both directions : Abergavenny Hardwick R/bout to Raglan : Bridge closed Local lanes closed : 06/07/26-14/09/26 0600 :

Active Roadworks Traffic Wales

Monmouthshire

Started Start time TBC

Description: : Both directions : Abergavenny Hardwick R/bout to Raglan : Bridge closed Local lanes closed : 06/07/26-14/09/26 0600 :, Start time: 06/07/2026 6:00 , End Date: 14/09/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 07/07/2026 13:20

View update