Crash View

M4 eastbound Jct 22 to Jct 21 lane closure 193/3-189/1

Cleared

M4 eastbound Jct 22 to Jct 21 lane closure 193/3-189/1

Start time
Mon, Sep 14, 2026 8:00 PM
Expected end
Tue, Sep 15, 2026 5:00 AM
Duration
3 hours 25 minutes 2 seconds
Road
M4 – M4 Eastbound Between J22 And J21
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Lanes affected
Lane 2 closed, 1 of 2 lanes affected, 1 of 3 lanes affected
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Mon, Aug 24, 2026 2:55 PM
Last updated
Mon, Sep 14, 2026 11:01 PM
Cleared
Mon, Sep 14, 2026 11:25 PM
  • Latest update: M4 eastbound Jct 22 to Jct 21 lane closure 193/3-189/1
Coordinates
51.573756, -2.598087
Latitude span
51.567731 – 51.576194
Longitude span
-2.628837 – -2.573525
Bounding box centre
51.571963, -2.601181
Location descriptions
  • M4 eastbound between J22 and J21
  • M4 eastbound between J21 and J20
Feed validity status
Planned
Overall feed start
Mon, Sep 14, 2026 8:00 PM
Overall feed end
Tue, Sep 15, 2026 5:00 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

24 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{EA4346F2-1E4C-47EA-8434-E1824CC2811C}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,314 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.575681 -2.609514
51.575795 -2.608404
51.575881 -2.607467
51.575962 -2.606458
51.575977 -2.606271
51.576065 -2.604901
51.576116 -2.603862
51.576125 -2.603675
51.576146 -2.603127
51.576167 -2.602579
51.57619 -2.601526
51.576194 -2.600746
51.576181 -2.599721
51.576151 -2.598682
51.576067 -2.597339
51.576 -2.596458
51.575897 -2.595461
51.575828 -2.594868
51.575716 -2.594015
51.575568 -2.593032
51.575393 -2.592034
51.575305 -2.591585
51.575182 -2.591021
51.57513 -2.590789

Segment 2

6 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
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
399 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
51.569159 -2.576326
51.568769 -2.575547

Segment 3

2 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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 4

6 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{56A37AD8-25DA-4070-B59A-F3B6168A77A2}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
271 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.57513 -2.590789
51.57491 -2.58982
51.574751 -2.589183
51.574415 -2.587952
51.574336 -2.58772
51.574178 -2.587183

Segment 5

4 coordinate pairs
Description
M4 eastbound between J21 and J20
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{95389D73-FE00-466C-8212-0202FD4420EA}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
181 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
51.567731 -2.573525

Segment 6

3 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{37C8843B-DDD1-41E1-B8D2-61861A58E4DC}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
91 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.573921 -2.586368
51.573876 -2.586228
51.573503 -2.585227

Segment 7

4 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{F3111949-42F8-4E9B-B3DD-BE7B454C78E1}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
63 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.574178 -2.587183
51.574097 -2.586909
51.574034 -2.586714
51.573921 -2.586368

Segment 8

8 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{D732C72D-3C57-4C7B-919C-175C11131D1F}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
445 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.573503 -2.585227
51.573476 -2.585156
51.57329 -2.584662
51.572979 -2.583864
51.572668 -2.583167
51.572268 -2.582296
51.571644 -2.581047
51.571146 -2.580045

Segment 9

22 coordinate pairs
Description
M4 eastbound between J22 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
Lane Status
Closed
Lane Direction
Aligned
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
{A7C355F5-28C8-4ED5-A98E-806E7C9C10B1}
Linear Element Type
B Carriageway
From Distance
111 m
To Distance
1,542 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.571332 -2.628837
51.571463 -2.628432
51.572085 -2.626507
51.572418 -2.625458
51.57256 -2.625013
51.572743 -2.624409
51.572963 -2.623647
51.573284 -2.622483
51.573449 -2.621865
51.573642 -2.621088
51.573716 -2.620801
51.573881 -2.620125
51.574194 -2.618772
51.574452 -2.617506
51.574619 -2.616657
51.574776 -2.615822
51.574989 -2.614598
51.575268 -2.612813
51.575446 -2.611487
51.57554 -2.610753
51.575681 -2.609557
51.575681 -2.609514
Geometry type
MultiLineString
Geometry points
79
First coordinate pair
-2.609514, 51.575681
Road section segments
1
Road section points
79
View geometry JSON 
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View road section coordinates 
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Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Mon, Aug 24, 2026 2:55 PM
Record versioned
Mon, Sep 14, 2026 11:01 PM
Coordinate source
Geometry

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

M4 live closures

Related incidents

Contra flow westbound with eastbound closed from Horseshoe Drive

Active Roadworks National Highways
South Gloucestershire A40 · A40 Eastbound Between A48 And A417 Near Gloucester (West)

Expected to clear in 2 months 3 weeks

Started 28 Jul 2026, 02:40 Expected clear 4 Jan 2027, 21:00

contra flow westbound with eastbound closed from Horseshoe Drive

Category: Road Maintenance
View update

A466 : Both directions : M48 J2 Newhouse to A48 Interchange : Resurfacing work : Road closed : Diversions in place : 12/10/26-15/10/26 2000-0600 :

Active Roadworks Traffic Wales
South Gloucestershire
Started Start time TBC

Description: A466 : Both directions : M48 J2 Newhouse to A48 Interchange : Resurfacing work : Road closed : Diversions in place : 12/10/26-15/10/26 2000-0600 :, Start time: 12/10/2026 20:00 , End Date: 15/10/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 12/10/2026 20:00

View update

M4 Eastbound Jct 2 exit slip road closure

Planned Roadworks National Highways
Hounslow M4 · M4 J2 Eastbound Exit

Starts in 13 hours 25 minutes

Starts 13 Oct 2026, 21:00 Expected clear 14 Oct 2026, 04:30

M4 Eastbound Jct 2 exit slip road closure

Category: Construction Work
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M4 Eastbound Jct 3 to Jct 2 lane 1 closure

Planned Roadworks National Highways
Hounslow M4 · M4 Eastbound Between J3 And J2

Starts in 13 hours 25 minutes

Starts 13 Oct 2026, 21:00 Expected clear 14 Oct 2026, 04:30

M4 Eastbound Jct 3 to Jct 2 lane 1 closure

Category: Construction Work
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M4 eastbound lane 1 closure (46/8 to 45/0)

Planned Roadworks National Highways
Windsor And Maidenhead M4 · M4 Eastbound Between J10 And J8

Starts in 12 hours 25 minutes

Starts 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 05:00

M4 eastbound lane 1 closure (46/8 to 45/0)

Category: Road Maintenance
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M4 eastbound lane 3 closure (76/8 to 74/2)

Planned Roadworks National Highways
West Berkshire M4 · M4 Eastbound Between J13 And J12

Starts in 11 hours 25 minutes

Starts 13 Oct 2026, 19:00 Expected clear 14 Oct 2026, 05:00

M4 eastbound lane 3 closure (76/8 to 74/2)

Category: Road Maintenance
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