M4 eastbound lane 1, 2 and 3 closure (39/2 to 37/2)

Planned

Start time: Mon, Mar 16, 2026 9:00 PM
Expected end: Tue, Mar 17, 2026 6:00 AM
Duration: 9 hours
Road: M4 – M4 Eastbound Between J7 And J6
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: 3 of 1 lanes affected
Reason: Roadworks

Active

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: Mon, Feb 9, 2026 1:50 PM
Last updated: Mon, Mar 16, 2026 11:53 PM
Cleared: Tue, Mar 17, 2026 6:00 AM

Latest update: M4 eastbound lane 1, 2 and 3 closure (39/2 to 37/2)

Coordinates: 51.506595, -0.632099
Latitude span: 51.503516 – 51.509515
Longitude span: -0.645427 – -0.618058
Bounding box centre: 51.506516, -0.631743
Location descriptions: M4 eastbound between J7 and J6

M4 eastbound within J6

Feed validity status: Planned
Overall feed start: Mon, Mar 16, 2026 9:00 PM
Overall feed end: Tue, Mar 17, 2026 6:00 AM
Feed window length: 9 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

8 coordinate pairs

Description: M4 eastbound between J7 and J6
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 1 operational lane
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: {2BA1F17B-638F-459F-9E18-1ADC1FB7CBCD}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 384 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.506655 -0.632432
51.506446 -0.631473
51.506113 -0.629927
51.50579 -0.628409
51.505693 -0.627972
51.505596 -0.627535
51.505596 -0.627534
51.505527 -0.627192

Segment 2

5 coordinate pairs

Description: M4 eastbound within J6
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 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: {5DFF4959-E516-85D5-F31F-4457630C46A4}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 293 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.505527 -0.627192
51.505408 -0.62665
51.504802 -0.6239
51.504746 -0.623641
51.504652 -0.623208

Segment 3

4 coordinate pairs

Description: M4 eastbound within J6
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 1 operational lane
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: {B79FCDE8-F5C1-4F7D-A972-B191F2BAD1C9}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 379 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.504652 -0.623208
51.503861 -0.619563
51.503557 -0.618247
51.503516 -0.618058

Segment 4

15 coordinate pairs

Description: M4 eastbound between J7 and J6
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 1 operational lane
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: {BAA93F72-4FD8-413B-A997-138A931A25EC}
Linear Element Type: B Carriageway
From Distance: 533 m
To Distance: 1,489 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.509515 -0.645427
51.509406 -0.64491
51.509389 -0.644829
51.509287 -0.644387
51.509193 -0.643975
51.509143 -0.643756
51.508292 -0.639849
51.507918 -0.638129
51.507827 -0.637721
51.507737 -0.637314
51.507435 -0.63591
51.5073 -0.63528
51.507082 -0.634322
51.506732 -0.632771
51.506655 -0.632432

Geometry type: MultiLineString
Geometry points: 32
First coordinate pair: -0.632432, 51.506655
Road section segments: 1
Road section points: 32

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.632432,
                51.506655
            ],
            [
                -0.631473,
                51.506446
            ],
            [
                -0.629927,
                51.506113
            ],
            [
                -0.628409,
                51.50579
            ],
            [
                -0.627972,
                51.505693
            ],
            [
                -0.627535,
                51.505596
            ],
            [
                -0.627534,
                51.505596
            ],
            [
                -0.627192,
                51.505527
            ],
            [
                -0.627192,
                51.505527
            ],
            [
                -0.62665,
                51.505408
            ],
            [
                -0.6239,
                51.504802
            ],
            [
                -0.623641,
                51.504746
            ],
            [
                -0.623208,
                51.504652
            ],
            [
                -0.623208,
                51.504652
            ],
            [
                -0.619563,
                51.503861
            ],
            [
                -0.618247,
                51.503557
            ],
            [
                -0.618058,
                51.503516
            ],
            [
                -0.645427,
                51.509515
            ],
            [
                -0.64491,
                51.509406
            ],
            [
                -0.644829,
                51.509389
            ],
            [
                -0.644387,
                51.509287
            ],
            [
                -0.643975,
                51.509193
            ],
            [
                -0.643756,
                51.509143
            ],
            [
                -0.639849,
                51.508292
            ],
            [
                -0.638129,
                51.507918
            ],
            [
                -0.637721,
                51.507827
            ],
            [
                -0.637314,
                51.507737
            ],
            [
                -0.63591,
                51.507435
            ],
            [
                -0.63528,
                51.5073
            ],
            [
                -0.634322,
                51.507082
            ],
            [
                -0.632771,
                51.506732
            ],
            [
                -0.632432,
                51.506655
            ]
        ]
    ]
}

View road section coordinates

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