M4 Eastbound Jct 4 to Jct 3 lane 2,3 closure

Planned

Start time: Tue, Aug 4, 2026 9:00 PM
Expected end: Wed, Aug 5, 2026 4:30 AM
Duration: 7 hours 30 minutes
Road: M4 – M4 Eastbound Between J4 And J3
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 2 of 2 lanes affected
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

Hover or tap markers for full details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment

Planning history

EPC ratings & more

Get a property report

First published: Tue, Aug 4, 2026 2:27 AM
Last updated: Tue, Aug 4, 2026 10:57 AM
Cleared: Wed, Aug 5, 2026 4:30 AM

Latest update: M4 Eastbound Jct 4 to Jct 3 lane 2,3 closure

Coordinates: 51.493795, -0.429996
Latitude span: 51.493002 – 51.494309
Longitude span: -0.436854 – -0.418714
Bounding box centre: 51.493656, -0.427784
Location descriptions: M4 eastbound between J4 and J3

Feed validity status: Planned
Overall feed start: Tue, Aug 4, 2026 9:00 PM
Overall feed end: Wed, Aug 5, 2026 4:30 AM
Feed window length: 7 hours 30 minutes
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

8 coordinate pairs

Description: M4 eastbound between J4 and J3
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: {033C1081-1437-46E3-AA87-D2149446F0ED}
Linear Element Type: B Carriageway
From Distance: 622 m
To Distance: 1,196 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.494309 -0.436854
51.494224 -0.43588
51.494184 -0.43542
51.494116 -0.434573
51.494065 -0.433941
51.493942 -0.432144
51.493876 -0.431268
51.493688 -0.428652

Segment 2

4 coordinate pairs

Description: M4 eastbound between J4 and J3
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: {E54946B4-B306-4292-9E00-7F994BD0C490}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 694 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.493688 -0.428652
51.493366 -0.424082
51.493074 -0.419771
51.493002 -0.418714

Geometry type: MultiLineString
Geometry points: 12
First coordinate pair: -0.436854, 51.494309
Road section segments: 1
Road section points: 12

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.436854,
                51.494309
            ],
            [
                -0.43588,
                51.494224
            ],
            [
                -0.43542,
                51.494184
            ],
            [
                -0.434573,
                51.494116
            ],
            [
                -0.433941,
                51.494065
            ],
            [
                -0.432144,
                51.493942
            ],
            [
                -0.431268,
                51.493876
            ],
            [
                -0.428652,
                51.493688
            ],
            [
                -0.428652,
                51.493688
            ],
            [
                -0.424082,
                51.493366
            ],
            [
                -0.419771,
                51.493074
            ],
            [
                -0.418714,
                51.493002
            ]
        ]
    ]
}

View road section coordinates

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