M4 Eastbound Jct 4B exit slip road closure

Cleared

M4 Eastbound Jct 4B exit slip road closure

Start time
Fri, Feb 27, 2026 11:00 PM
Expected end
Sat, Feb 28, 2026 6:00 AM
Duration
7 hours
Road
M25 – Link Road From M4 J4B To M25 J15 Clockwise
Category
Road Maintenance
Direction
Clockwise
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
First published
Fri, Feb 27, 2026 11:00 PM
Last updated
Sat, Feb 28, 2026 4:29 AM
Cleared
Sat, Feb 28, 2026 6:00 AM
  • Latest update: M4 Eastbound Jct 4B exit slip road closure
Coordinates
51.495907, -0.499853
Latitude span
51.494215 – 51.497983
Longitude span
-0.505777 – -0.496373
Bounding box centre
51.496099, -0.501075
Location descriptions
  • link road from M4 J4B to M25 J15 clockwise
  • link road from M4 J4B eastbound to M25 J15
  • link road from M4 J4B eastbound to M25 J15 clockwise
Feed validity status
Active
Overall feed start
Fri, Feb 27, 2026 11:00 PM
Overall feed end
Sat, Feb 28, 2026 6:00 AM
Feed window length
7 hours
Probability code (raw)
certain
Compliance option (raw)
mandatory
Source identification (raw)
roadworks
Management type value
carriagewayClosures (Carriageway Closures)
Contra-flow flag (raw)
false
Width restriction flag (raw)
false
Height restriction flag (raw)
false
Weight restriction flag (raw)
false

Segment 1

2 coordinate pairs
Description
link road from M4 J4B to M25 J15 clockwise
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{EAB90281-C8F1-4B6D-B9A2-418B8AEC6B50}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
0 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.497978 -0.496377
51.497983 -0.496373

Segment 2

10 coordinate pairs
Description
link road from M4 J4B eastbound to M25 J15
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
{F8ED4782-79F0-478D-801B-C850EBB05D33}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
373 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.494215 -0.505777
51.494656 -0.50327
51.494672 -0.503173
51.494787 -0.502477
51.494917 -0.501713
51.49494 -0.50159
51.494993 -0.50131
51.495054 -0.501031
51.495164 -0.500675
51.49518 -0.500639

Segment 3

3 coordinate pairs
Description
link road from M4 J4B eastbound to M25 J15
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
{21298787-4F37-429A-9C6E-F407918FDCAF}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
115 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.49518 -0.500639
51.495322 -0.500313
51.495797 -0.499309

Segment 4

8 coordinate pairs
Description
link road from M4 J4B eastbound to M25 J15 clockwise
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{B7136B54-64DB-48D4-8DB6-5A4630DF59FD}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
317 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.495797 -0.499309
51.496003 -0.498993
51.496344 -0.498391
51.496663 -0.497906
51.497018 -0.497428
51.497397 -0.496996
51.497816 -0.496554
51.497978 -0.496377
Geometry type
MultiLineString
Geometry points
23
First coordinate pair
-0.496377, 51.497978
Road section segments
1
Road section points
23
View geometry JSON
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.496377,
                51.497978
            ],
            [
                -0.496373,
                51.497983
            ],
            [
                -0.505777,
                51.494215
            ],
            [
                -0.50327,
                51.494656
            ],
            [
                -0.503173,
                51.494672
            ],
            [
                -0.502477,
                51.494787
            ],
            [
                -0.501713,
                51.494917
            ],
            [
                -0.50159,
                51.49494
            ],
            [
                -0.50131,
                51.494993
            ],
            [
                -0.501031,
                51.495054
            ],
            [
                -0.500675,
                51.495164
            ],
            [
                -0.500639,
                51.49518
            ],
            [
                -0.500639,
                51.49518
            ],
            [
                -0.500313,
                51.495322
            ],
            [
                -0.499309,
                51.495797
            ],
            [
                -0.499309,
                51.495797
            ],
            [
                -0.498993,
                51.496003
            ],
            [
                -0.498391,
                51.496344
            ],
            [
                -0.497906,
                51.496663
            ],
            [
                -0.497428,
                51.497018
            ],
            [
                -0.496996,
                51.497397
            ],
            [
                -0.496554,
                51.497816
            ],
            [
                -0.496377,
                51.497978
            ]
        ]
    ]
}
View road section coordinates
[
    [
        [
            -0.496377,
            51.497978
        ],
        [
            -0.496373,
            51.497983
        ],
        [
            -0.505777,
            51.494215
        ],
        [
            -0.50327,
            51.494656
        ],
        [
            -0.503173,
            51.494672
        ],
        [
            -0.502477,
            51.494787
        ],
        [
            -0.501713,
            51.494917
        ],
        [
            -0.50159,
            51.49494
        ],
        [
            -0.50131,
            51.494993
        ],
        [
            -0.501031,
            51.495054
        ],
        [
            -0.500675,
            51.495164
        ],
        [
            -0.500639,
            51.49518
        ],
        [
            -0.500639,
            51.49518
        ],
        [
            -0.500313,
            51.495322
        ],
        [
            -0.499309,
            51.495797
        ],
        [
            -0.499309,
            51.495797
        ],
        [
            -0.498993,
            51.496003
        ],
        [
            -0.498391,
            51.496344
        ],
        [
            -0.497906,
            51.496663
        ],
        [
            -0.497428,
            51.497018
        ],
        [
            -0.496996,
            51.497397
        ],
        [
            -0.496554,
            51.497816
        ],
        [
            -0.496377,
            51.497978
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Roadworks
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Fri, Feb 27, 2026 11:00 PM
Record versioned
Sat, Feb 28, 2026 4:29 AM
Coordinate source
Geometry

Related incidents

M25 clockwise Jct 23 to Jct 25 carriageway and slip road closure

Planned National Highways
Enfield M25 · M25 Clockwise Within J24
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 clockwise Jct 23 to Jct 25 carriageway and slip road closure

Category: Road Maintenance
View update

M25 Anti-Clockwise Jct 15 to Jct 14 Lane 4,3,2 closure

Planned National Highways
Slough M25 · M25 Anti-Clockwise Between J16 And J15
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 Anti-Clockwise Jct 15 to Jct 14 Lane 4,3,2 closure

Category: Construction Work
View update

M25 Anti-clockwise Jct 9 to Jct 8 lane 4,3 closure

Planned National Highways
Redhill M25 · M25 Anti-Clockwise Between J9 And J8
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 Anti-clockwise Jct 9 to Jct 8 lane 4,3 closure

Category: Road Maintenance
View update

M25 Anti-clockwise Jct 17 to Jct 16 lane 1,2 closure

Planned National Highways
South Bucks M25 · M25 Anti-Clockwise Within J16 Before M40 J1A Northbound Exit
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 Anti-clockwise Jct 17 to Jct 16 lane 1,2 closure

Category: Road Maintenance
View update

M25 Clockwise Jct 16 to Jct 17 Lane 1,2 closure

Planned National Highways
South Bucks M25 · M25 Clockwise Between J16 And J17
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 Clockwise Jct 16 to Jct 17 Lane 1,2 closure

Category: Road Maintenance
View update

M25 clockwise Jct 22 to Jct 23 lane 4,3,2 closure

Planned National Highways
Borehamwood M25 · M25 Clockwise Between J22 And J23
Starts 8 Jun 2026, 21:00 Expected 9 Jun 2026, 04:30

M25 clockwise Jct 22 to Jct 23 lane 4,3,2 closure

Category: Road Maintenance
View update