M4 eastbound lane 1 closure (99/4 to 98/7)

Planned

Start time: Tue, Aug 4, 2026 7:00 PM
Expected end: Wed, Aug 5, 2026 5:00 AM
Duration: 10 hours
Road: M4 – M4 Eastbound Between J14 And J13
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 3 lanes affected
Reason: Maintenance Work

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: Wed, Jul 1, 2026 11:42 AM
Last updated: Tue, Aug 4, 2026 9:31 AM
Cleared: Wed, Aug 5, 2026 5:00 AM

Latest update: M4 eastbound lane 1 closure (99/4 to 98/7)

Coordinates: 51.449691, -1.413850
Latitude span: 51.449025 – 51.450415
Longitude span: -1.418031 – -1.408371
Bounding box centre: 51.449720, -1.413201
Location descriptions: M4 eastbound between J14 and J13

Feed validity status: Planned
Overall feed start: Tue, Aug 4, 2026 7:00 PM
Overall feed end: Wed, Aug 5, 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

6 coordinate pairs

Description: M4 eastbound between J14 and J13
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {7F348D43-44C5-4DC3-92F2-997C2990794C}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 484 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.449523 -1.415193
51.449554 -1.415002
51.449776 -1.413521
51.450081 -1.411352
51.450256 -1.409833
51.450415 -1.408371

Segment 2

4 coordinate pairs

Description: M4 eastbound between J14 and J13
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 3 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: M4
Linear Element Model: The Network Model
Linear Element Id: {69751464-982A-44F2-A9A3-BB89DC4557B9}
Linear Element Type: B Carriageway
From Distance: 485 m
To Distance: 689 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.449025 -1.418031
51.449238 -1.416807
51.449523 -1.415193
51.449523 -1.415193

Geometry type: MultiLineString
Geometry points: 10
First coordinate pair: -1.415193, 51.449523
Road section segments: 1
Road section points: 10

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -1.415193,
                51.449523
            ],
            [
                -1.415002,
                51.449554
            ],
            [
                -1.413521,
                51.449776
            ],
            [
                -1.411352,
                51.450081
            ],
            [
                -1.409833,
                51.450256
            ],
            [
                -1.408371,
                51.450415
            ],
            [
                -1.418031,
                51.449025
            ],
            [
                -1.416807,
                51.449238
            ],
            [
                -1.415193,
                51.449523
            ],
            [
                -1.415193,
                51.449523
            ]
        ]
    ]
}

View road section coordinates

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