Crash View

M4 Eastbound Jct 21 to 20 lane 1 closure 190/2b - 187/7b

Cleared

M4 Eastbound Jct 21 to 20 lane 1 closure 190/2b - 187/7b

Start time
Tue, May 26, 2026 7:43 PM
Expected end
Wed, May 27, 2026 5:00 AM
Duration
9 hours 17 minutes
Road
M4 – M4 Eastbound Between J21 And J20
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
1 of 3 lanes affected, 1 of 2 lanes affected
Reason
Tree And Vegetation Cutting Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Tue, May 26, 2026 7:43 PM
Last updated
Tue, May 26, 2026 11:33 PM
Cleared
Wed, May 27, 2026 5:00 AM
  • Latest update: M4 Eastbound Jct 21 to 20 lane 1 closure 190/2b - 187/7b
Coordinates
51.567388, -2.572904
Latitude span
51.559220 – 51.574335
Longitude span
-2.584674 – -2.558757
Bounding box centre
51.566778, -2.571716
Location descriptions
  • M4 eastbound between J21 and J20
  • M48 eastbound between J1 and M4
  • M4 eastbound between J22 and J21
Feed validity status
Active
Overall feed start
Tue, May 26, 2026 7:43 PM
Overall feed end
Wed, May 27, 2026 5:00 AM
Feed window length
9 hours 17 minutes
Probability code (raw)
certain
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

5 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
3 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{9A94B25C-A762-430E-A886-FAFDA3DAA081}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
214 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.571092 -2.579944
51.570905 -2.579581
51.570335 -2.578534
51.569938 -2.577768
51.569842 -2.57759

Segment 2

13 coordinate pairs
Description
M48 eastbound between J1 and M4
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
2 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M48
Linear Element Model
The Network Model
Linear Element Id
{EE29AA2A-BEC3-4641-87EA-A46DF0868729}
Linear Element Type
B Carriageway
From Distance
269 m
To Distance
748 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.574335 -2.584674
51.574199 -2.584514
51.573484 -2.583565
51.573234 -2.583232
51.572806 -2.582635
51.57252 -2.582227
51.572225 -2.581776
51.572047 -2.5815
51.571958 -2.581369
51.571842 -2.58118
51.571431 -2.580496
51.571196 -2.580113
51.571146 -2.580045

Segment 3

14 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
3 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{851BB8E6-6940-4369-BCF5-A96FE8932F11}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,098 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.566526 -2.57125
51.565391 -2.56905
51.563476 -2.565391
51.563039 -2.564578
51.562736 -2.564011
51.562645 -2.56385
51.562522 -2.563576
51.561416 -2.561701
51.561086 -2.561178
51.560881 -2.560872
51.560732 -2.560668
51.56038 -2.560188
51.560139 -2.559868
51.559898 -2.559545

Segment 4

2 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lanes Restricted
1 lane 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
{A339DD45-31D2-4C2B-8809-37586E1E7D1D}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
9 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.571146 -2.580045
51.571092 -2.579944

Segment 5

5 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
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
{95389D73-FE00-466C-8212-0202FD4420EA}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
388 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.568769 -2.575547
51.568705 -2.575426
51.56793 -2.573901
51.566585 -2.571359
51.566526 -2.57125

Segment 6

3 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
3 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M4
Linear Element Model
The Network Model
Linear Element Id
{9A94B25C-A762-430E-A886-FAFDA3DAA081}
Linear Element Type
B Carriageway
From Distance
213 m
To Distance
399 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.569849 -2.577604
51.569159 -2.576326
51.568769 -2.575547

Segment 7

3 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lanes Restricted
1 lane restricted
Operational Lanes
3 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
{BBCF13CD-84AD-4542-B91E-D5E3F80455EE}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
93 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.559898 -2.559545
51.559388 -2.55895
51.55922 -2.558757
Geometry type
MultiLineString
Geometry points
45
First coordinate pair
-2.579944, 51.571092
Road section segments
1
Road section points
45
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -2.579944,
                51.571092
            ],
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                -2.579581,
                51.570905
            ],
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                -2.578534,
                51.570335
            ],
            [
                -2.577768,
                51.569938
            ],
            [
                -2.57759,
                51.569842
            ],
            [
                -2.584674,
                51.574335
            ],
            [
                -2.584514,
                51.574199
            ],
            [
                -2.583565,
                51.573484
            ],
            [
                -2.583232,
                51.573234
            ],
            [
                -2.582635,
                51.572806
            ],
            [
                -2.582227,
                51.57252
            ],
            [
                -2.581776,
                51.572225
            ],
            [
                -2.5815,
                51.572047
            ],
            [
                -2.581369,
                51.571958
            ],
            [
                -2.58118,
                51.571842
            ],
            [
                -2.580496,
                51.571431
            ],
            [
                -2.580113,
                51.571196
            ],
            [
                -2.580045,
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            ],
            [
                -2.57125,
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            ],
            [
                -2.56905,
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            ],
            [
                -2.565391,
                51.563476
            ],
            [
                -2.564578,
                51.563039
            ],
            [
                -2.564011,
                51.562736
            ],
            [
                -2.56385,
                51.562645
            ],
            [
                -2.563576,
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            ],
            [
                -2.561701,
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            ],
            [
                -2.561178,
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            ],
            [
                -2.560872,
                51.560881
            ],
            [
                -2.560668,
                51.560732
            ],
            [
                -2.560188,
                51.56038
            ],
            [
                -2.559868,
                51.560139
            ],
            [
                -2.559545,
                51.559898
            ],
            [
                -2.580045,
                51.571146
            ],
            [
                -2.579944,
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            ],
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                -2.575547,
                51.568769
            ],
            [
                -2.575426,
                51.568705
            ],
            [
                -2.573901,
                51.56793
            ],
            [
                -2.571359,
                51.566585
            ],
            [
                -2.57125,
                51.566526
            ],
            [
                -2.577604,
                51.569849
            ],
            [
                -2.576326,
                51.569159
            ],
            [
                -2.575547,
                51.568769
            ],
            [
                -2.559545,
                51.559898
            ],
            [
                -2.55895,
                51.559388
            ],
            [
                -2.558757,
                51.55922
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -2.579944,
            51.571092
        ],
        [
            -2.579581,
            51.570905
        ],
        [
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            51.570335
        ],
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            -2.577768,
            51.569938
        ],
        [
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            51.569842
        ],
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        ],
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            51.574199
        ],
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            51.573484
        ],
        [
            -2.583232,
            51.573234
        ],
        [
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            51.572806
        ],
        [
            -2.582227,
            51.57252
        ],
        [
            -2.581776,
            51.572225
        ],
        [
            -2.5815,
            51.572047
        ],
        [
            -2.581369,
            51.571958
        ],
        [
            -2.58118,
            51.571842
        ],
        [
            -2.580496,
            51.571431
        ],
        [
            -2.580113,
            51.571196
        ],
        [
            -2.580045,
            51.571146
        ],
        [
            -2.57125,
            51.566526
        ],
        [
            -2.56905,
            51.565391
        ],
        [
            -2.565391,
            51.563476
        ],
        [
            -2.564578,
            51.563039
        ],
        [
            -2.564011,
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        ],
        [
            -2.56385,
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        ],
        [
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        ],
        [
            -2.561701,
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        ],
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            -2.561178,
            51.561086
        ],
        [
            -2.560872,
            51.560881
        ],
        [
            -2.560668,
            51.560732
        ],
        [
            -2.560188,
            51.56038
        ],
        [
            -2.559868,
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        ],
        [
            -2.559545,
            51.559898
        ],
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            51.571146
        ],
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            -2.579944,
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        ],
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            -2.575547,
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        ],
        [
            -2.575426,
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        ],
        [
            -2.573901,
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        ],
        [
            -2.571359,
            51.566585
        ],
        [
            -2.57125,
            51.566526
        ],
        [
            -2.577604,
            51.569849
        ],
        [
            -2.576326,
            51.569159
        ],
        [
            -2.575547,
            51.568769
        ],
        [
            -2.559545,
            51.559898
        ],
        [
            -2.55895,
            51.559388
        ],
        [
            -2.558757,
            51.55922
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Tree And Vegetation Cutting Work
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, May 26, 2026 7:43 PM
Record versioned
Tue, May 26, 2026 11:33 PM
Coordinate source
Geometry

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

M4 live closures

Related incidents

M48 eastbound Jct 2 to 1 hard shoulder closure (199/9B to 194/6B)

Active Roadworks National Highways
South Gloucestershire M48 · M48 Eastbound Between J2 And J1

Expected to clear in 1 week 10 hours

Started 27 May 2026, 02:15 Expected clear 22 Jun 2026, 05:00

M48 eastbound Jct 2 to 1 hard shoulder closure (199/9B to 194/6B)

Category: Road Maintenance
View update

M48 : Westbound : J1 Aust to J2 Newhouse : 15/06/26-17/06/26 2000-0600 : Improvement work : Onslip closed : Offslip closed : Diversions in place :

Active Roadworks Traffic Wales
South Gloucestershire
Started Start time TBC

Description: M48 : Westbound : J1 Aust to J2 Newhouse : 15/06/26-17/06/26 2000-0600 : Improvement work : Onslip closed : Offslip closed : Diversions in place :, Start time: 15/06/2026 20:00 , End Date: 17/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/06/2026 17:56

View update

M48 : Eastbound : J2 Newhouse to J1 Aust : 17/06/26-19/06/26 2000-0600 : Improvement work : Offslip closed : Onslip closed : Diversions in place :

Active Roadworks Traffic Wales
South Gloucestershire
Started Start time TBC

Description: M48 : Eastbound : J2 Newhouse to J1 Aust : 17/06/26-19/06/26 2000-0600 : Improvement work : Offslip closed : Onslip closed : Diversions in place :, Start time: 17/06/2026 20:00 , End Date: 19/06/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/06/2026 17:57

View update

M48 eastbound Jct 2 to 1 lane 1 closure (199/9B to 194/6B)

Planned Roadworks National Highways
South Gloucestershire M48 · M48 Eastbound Between J2 And J1

Starts in 21 minutes 25 seconds

Starts 14 Jun 2026, 19:00 Expected clear 15 Jun 2026, 04:00

M48 eastbound Jct 2 to 1 lane 1 closure (199/9B to 194/6B)

Category: Road Maintenance
View update

M5 northbound Jct 16 exit slip - lane closure

Cleared Roadworks National Highways
South Gloucestershire M5 · M5 Northbound Between J17 And J16

Cleared 13 hours 38 minutes ago

Started 13 Jun 2026, 19:00 Ended 14 Jun 2026, 05:00

M5 northbound Jct 16 exit slip - lane closure

Category: Authority Operation
View update

M4 Eastbound Jct 3 to Jct 1 carriageway closure

Cleared Roadworks National Highways
Hounslow M4 · M4 Eastbound Within J3

Cleared 1 day 20 hours ago

Started 12 Jun 2026, 22:00 Ended 12 Jun 2026, 22:00

M4 Eastbound Jct 3 to Jct 1 carriageway closure

Category: Construction Work
View update