Crash View

M4 Eastbound Jct 5 to Jct 4B carriageway closure

Planned

M4 Eastbound Jct 5 to Jct 4B carriageway closure

Start time
Fri, Oct 23, 2026 10:00 PM
Expected end
Sat, Oct 24, 2026 4:30 AM
Duration
6 hours 30 minutes
Road
M4 – M4 Eastbound Between J5 And J4B
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Reason
Other
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Jul 28, 2026 10:25 AM
Last updated
Fri, Oct 23, 2026 12:20 AM
Cleared
Sat, Oct 24, 2026 4:30 AM
  • Latest update: M4 Eastbound Jct 5 to Jct 4B carriageway closure
Coordinates
51.493711, -0.518370
Latitude span
51.492385 – 51.495699
Longitude span
-0.542003 – -0.499517
Bounding box centre
51.494042, -0.520760
Location descriptions
  • M4 eastbound between J5 and J4B
  • M4 J5 eastbound access
  • link road from M4 J4B eastbound to M25 J15
Feed validity status
Planned
Overall feed start
Fri, Oct 23, 2026 10:00 PM
Overall feed end
Sat, Oct 24, 2026 4:30 AM
Feed window length
6 hours 30 minutes
Probability code (raw)
probable
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

3 coordinate pairs
Description
M4 eastbound between J5 and J4B
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
{2D7FBEAA-7E69-47DC-8335-F678E9006D5D}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
2 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.493176 -0.533279
51.493179 -0.53324
51.493179 -0.533237

Segment 2

16 coordinate pairs
Description
M4 J5 eastbound access
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
{00D2BB02-5F43-4EB3-9D03-C3E7144BB4AC}
Linear Element Type
B Carriageway Entry Slip
From Distance
15 m
To Distance
629 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.492385 -0.542003
51.492433 -0.541704
51.492491 -0.541241
51.492499 -0.541169
51.492644 -0.539868
51.49271 -0.539347
51.492733 -0.539044
51.492928 -0.537395
51.493032 -0.536355
51.493066 -0.535735
51.493072 -0.535659
51.493106 -0.535179
51.493148 -0.534454
51.49321 -0.533415
51.493176 -0.53328
51.493176 -0.533279

Segment 3

14 coordinate pairs
Description
M4 eastbound between J5 and J4B
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{E240EF51-44E3-47A6-AAA7-217FB89D1F13}
Linear Element Type
B Carriageway
From Distance
1,227 m
To Distance
1,870 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.493133 -0.515085
51.493171 -0.514123
51.493174 -0.514036
51.493233 -0.513026
51.493328 -0.511957
51.493343 -0.511783
51.493456 -0.510757
51.493557 -0.510037
51.493572 -0.509932
51.493679 -0.509208
51.493713 -0.509008
51.493972 -0.507441
51.494091 -0.506602
51.494178 -0.505994

Segment 4

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
96 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.49518 -0.500639
51.495322 -0.500313
51.495699 -0.499517

Segment 5

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 6

2 coordinate pairs
Description
M4 eastbound between J5 and J4B
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{8266070A-9116-4A3E-B544-1AAE10E774C0}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
15 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.494178 -0.505994
51.494215 -0.505777
Geometry type
MultiLineString
Geometry points
48
First coordinate pair
-0.533279, 51.493176
Road section segments
1
Road section points
48
View geometry JSON 
{
    "type": "MultiLineString",
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            ],
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                -0.542003,
                51.492385
            ],
            [
                -0.541704,
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            ],
            [
                -0.541241,
                51.492491
            ],
            [
                -0.541169,
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            ],
            [
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            ],
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            ],
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            ],
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            ],
            [
                -0.507441,
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            ],
            [
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            ],
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            ],
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            ],
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            ],
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            ],
            [
                -0.505994,
                51.494178
            ],
            [
                -0.505777,
                51.494215
            ]
        ]
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}
View road section coordinates 
[
    [
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            -0.533279,
            51.493176
        ],
        [
            -0.53324,
            51.493179
        ],
        [
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        ],
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        ],
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        ],
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            -0.535735,
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        ],
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        ],
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            -0.535179,
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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            -0.501031,
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        ],
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        ],
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        ],
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        ],
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            -0.505777,
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        ]
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]
Cause type
Road Maintenance
Detailed cause
Other
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Tue, Jul 28, 2026 10:25 AM
Record versioned
Fri, Oct 23, 2026 12:20 AM
Coordinate source
Geometry

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

M4 live closures

Related incidents

M4 eastbound Jct 13 between the slips carriageway closure

Active Roadworks National Highways
West Berkshire M4 · M4 Eastbound Within J13

Expected to clear in 3 hours 27 minutes

Started 22 Oct 2026, 21:05 Expected clear 23 Oct 2026, 06:00

M4 eastbound Jct 13 between the slips carriageway closure

Category: Road Maintenance
View update

M4 Northbound Jct 4A to Jct 4 lane 1,2 closure

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Starts in 20 hours 27 minutes

Starts 23 Oct 2026, 23:00 Expected clear 24 Oct 2026, 06:00

M4 Northbound Jct 4A to Jct 4 lane 1,2 closure

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View update

M4 eastbound Jct 18 to 17 lane closure (166/5 to 162/1)

Planned Roadworks National Highways
South Gloucestershire M4 · M4 Eastbound Between J18 And J17

Starts in 4 hours 27 minutes

Starts 23 Oct 2026, 07:00 Expected clear 23 Oct 2026, 18:00

M4 eastbound Jct 18 to 17 lane closure (166/5 to 162/1)

Category: Road Maintenance
View update

M25 Anti-clockwise Jct 15 carriageway closure between exit and entry slip road

Cleared Roadworks National Highways
Slough M25 · M25 Anti-Clockwise Between J16 And J15

Cleared 4 hours 32 minutes ago

Started 22 Oct 2026, 22:00 Ended 22 Oct 2026, 22:00

M25 Anti-clockwise Jct 15 carriageway closure between exit and entry slip road

Category: Construction Work
View update

M25 Anti-clockwise Jct 16 to Jct 15 lane 4,3,2 closure

Cleared Roadworks National Highways
Slough M25 · M25 Anti-Clockwise Between J16 And J15

Cleared 4 hours 32 minutes ago

Started 22 Oct 2026, 22:00 Ended 22 Oct 2026, 22:00

M25 Anti-clockwise Jct 16 to Jct 15 lane 4,3,2 closure

Category: Construction Work
View update

M25 Clockwise Jct 15 between the exit and entry slip roads lane 3,2 closure

Cleared Roadworks National Highways
Slough M25 · M25 Clockwise Within J15

Expected to clear in 2 hours 57 minutes

Started 22 Oct 2026, 22:00 Expected clear 23 Oct 2026, 05:30

M25 Clockwise Jct 15 between the exit and entry slip roads lane 3,2 closure

Category: Construction Work
View update