Crash View

M25 Clockwise Jct 20 to Jct 21A carriageway closure

Cleared

M25 Clockwise Jct 20 to Jct 21A carriageway closure

Start time
Wed, Sep 16, 2026 9:00 PM
Expected end
Thu, Sep 17, 2026 4:30 AM
Duration
1 hour 10 minutes 1 second
Road
M25 – M25 Clockwise Between J20 And J21
Category
Road Maintenance
Direction
Clockwise
Carriageway
Dual Carriageway
Reason
Roadworks
Live incident
Active roadworks
Planned
Cleared
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First published
Wed, Sep 16, 2026 8:42 PM
Last updated
Wed, Sep 16, 2026 9:35 PM
Cleared
Wed, Sep 16, 2026 10:10 PM
  • Latest update: M25 Clockwise Jct 20 to Jct 21A carriageway closure
Coordinates
51.711142, -0.413479
Latitude span
51.700495 – 51.716539
Longitude span
-0.443775 – -0.372756
Bounding box centre
51.708517, -0.408266
Location descriptions
  • M25 clockwise between J20 and J21
  • M25 clockwise within J21
  • M25 clockwise within J20
  • M25 J20 clockwise access
Feed validity status
Active
Overall feed start
Wed, Sep 16, 2026 9:00 PM
Overall feed end
Thu, Sep 17, 2026 4:30 AM
Feed window length
7 hours 30 minutes
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

17 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{1733476C-17D3-470A-B027-A6606FC3981D}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
541 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.709544 -0.430958
51.709728 -0.430671
51.710098 -0.430079
51.710572 -0.429252
51.71073 -0.428942
51.710774 -0.428869
51.711022 -0.428354
51.711115 -0.428176
51.71129 -0.427794
51.711535 -0.42725
51.711607 -0.427074
51.711926 -0.426295
51.712057 -0.425972
51.712187 -0.425635
51.71223 -0.425503
51.712317 -0.42524
51.712483 -0.42475

Segment 2

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{DE22094C-805A-4254-ACF7-FE3F6C9E825C}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
4 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.716383 -0.385353
51.716392 -0.385286

Segment 3

10 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{29BB1E70-37D6-4EF4-9C4E-C430220FB45A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
260 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.716425 -0.384719
51.716467 -0.38391
51.716473 -0.383765
51.716476 -0.383703
51.716519 -0.38301
51.716529 -0.382631
51.716536 -0.381765
51.716536 -0.381753
51.716537 -0.381446
51.716539 -0.380963

Segment 4

10 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{046FB3B0-89F0-4EC2-968D-D5F79D834093}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
394 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.714125 -0.39972
51.714128 -0.399601
51.714158 -0.399117
51.714164 -0.399013
51.714241 -0.398034
51.714299 -0.397458
51.714373 -0.396876
51.714416 -0.396574
51.714509 -0.395929
51.714801 -0.394126

Segment 5

8 coordinate pairs
Description
M25 clockwise within J20
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{972F0103-30E2-4089-BA3F-8B731DE08381}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
244 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.700744 -0.443427
51.700886 -0.443292
51.701072 -0.443112
51.70125 -0.442932
51.701826 -0.442319
51.702012 -0.44211
51.702561 -0.441483
51.702572 -0.441471

Segment 6

18 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{FC07E346-0B13-42E0-AFD2-0A3E1E93D665}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
632 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.714801 -0.394126
51.714972 -0.393241
51.715177 -0.39226
51.715218 -0.392084
51.71544 -0.391129
51.715605 -0.390417
51.715638 -0.390278
51.715703 -0.389977
51.715826 -0.38941
51.715985 -0.388543
51.71612 -0.387739
51.716148 -0.387529
51.716215 -0.387017
51.716252 -0.386639
51.716339 -0.385952
51.716344 -0.385908
51.716379 -0.385427
51.716383 -0.385353

Segment 7

16 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{7661581F-83B2-4CA3-976C-6716D3D41D83}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
714 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.704899 -0.43806
51.705241 -0.437426
51.705355 -0.437214
51.705662 -0.436644
51.705706 -0.436567
51.706058 -0.43595
51.706321 -0.435478
51.706682 -0.434901
51.706772 -0.434768
51.70737 -0.433879
51.707715 -0.433418
51.708563 -0.432318
51.708766 -0.43205
51.709331 -0.431278
51.709481 -0.431056
51.709544 -0.430958

Segment 8

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{BFFD42BE-2665-4252-9CB5-AC4691B2D17A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
17 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.716392 -0.385286
51.716413 -0.385032

Segment 9

3 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{4AECA858-E73C-4265-BA9A-A80CDF6F8E40}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
233 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.702572 -0.441471
51.7028 -0.441188
51.704164 -0.439264

Segment 10

2 coordinate pairs
Description
M25 clockwise within J20
Carriageway
Dual Carriageway
Lanes Restricted
4 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{88788690-1F9B-48BB-99E5-99384240240E}
Linear Element Type
A Carriageway
From Distance
53 m
To Distance
85 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.700495 -0.443674
51.700744 -0.443427

Segment 11

4 coordinate pairs
Description
M25 clockwise between J20 and J21
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{13ABEE78-E1AF-4AF0-8F89-549954815698}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
114 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.702661 -0.441536
51.702849 -0.441263
51.703321 -0.440581
51.703424 -0.440421

Segment 12

12 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{5342AF68-4779-4DBC-A30E-BC1467F9CAC3}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
938 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.714215 -0.413303
51.714177 -0.409179
51.714147 -0.408152
51.71414 -0.407919
51.714139 -0.407355
51.714134 -0.406679
51.714123 -0.405145
51.714111 -0.403634
51.71409 -0.402091
51.714083 -0.401328
51.714098 -0.400546
51.714125 -0.39972

Segment 13

11 coordinate pairs
Description
M25 J20 clockwise access
Lanes Restricted
1 lane restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{07A5FAEF-237B-464A-8652-F5CD217A4A54}
Linear Element Type
A Carriageway Entry Slip
From Distance
12 m
To Distance
246 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.701114 -0.443775
51.701117 -0.443733
51.701142 -0.443616
51.701159 -0.443543
51.701238 -0.443396
51.701414 -0.443159
51.701591 -0.442953
51.701901 -0.442562
51.702138 -0.442268
51.70245 -0.441841
51.702661 -0.441536

Segment 14

11 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{E24E137F-B948-40D6-A77C-0EDE0FB9C843}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
581 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.716539 -0.380963
51.716495 -0.38023
51.716395 -0.378558
51.716379 -0.37835
51.716323 -0.377596
51.716225 -0.376854
51.716076 -0.375802
51.715917 -0.374697
51.715858 -0.374375
51.715756 -0.373815
51.715498 -0.372756

Segment 15

20 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 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
{E9F2DFB7-E149-4FD5-A1AB-51CC7C74D97A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
821 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.712483 -0.42475
51.71255 -0.424551
51.712809 -0.423703
51.712954 -0.423148
51.713125 -0.42249
51.71321 -0.42214
51.713295 -0.421775
51.713439 -0.421104
51.713599 -0.420273
51.713687 -0.419744
51.713799 -0.419079
51.713904 -0.418251
51.71397 -0.417756
51.714017 -0.417248
51.714086 -0.41642
51.714126 -0.415985
51.71416 -0.415231
51.7142 -0.414144
51.714208 -0.413448
51.714215 -0.413303

Segment 16

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lanes Restricted
4 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
{5A455410-3E3F-4E9A-83D6-E4A19AC39AE1}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
21 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.716413 -0.385032
51.716425 -0.384719

Segment 17

3 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lanes Restricted
5 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
Clockwise
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
M25
Linear Element Model
The Network Model
Linear Element Id
{ECB1DEDE-1560-4F8A-9DB6-9E67E82F9A6D}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
116 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.704164 -0.439264
51.704661 -0.438459
51.704899 -0.43806
Geometry type
MultiLineString
Geometry points
151
First coordinate pair
-0.430958, 51.709544
Road section segments
1
Road section points
151
View geometry JSON 
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            ],
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            ],
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View road section coordinates 
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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
Wed, Sep 16, 2026 8:42 PM
Record versioned
Wed, Sep 16, 2026 9:35 PM
Coordinate source
Geometry

Driving on the M25? See every live closure, roadwork and planned restriction on this road.

M25 live closures

Related incidents

M25 Clockwise jct 21 to Jct 21A Lane 4,3 closure

Active Roadworks National Highways
St Albans M25 · M25 Clockwise Within J21

Expected to clear in 5 hours 9 minutes

Started 12 Oct 2026, 21:15 Expected clear 13 Oct 2026, 04:30

M25 Clockwise jct 21 to Jct 21A Lane 4,3 closure

Category: Road Maintenance
View update

M25 Clockwise Jct 30 exit slip lane 1 closure

Cleared Roadworks National Highways
Havering M25 · M25 J30 Clockwise Exit

Cleared 2 hours 20 minutes ago

Started 12 Oct 2026, 21:00 Ended 12 Oct 2026, 21:00

M25 Clockwise Jct 30 exit slip lane 1 closure

Category: Road Maintenance
View update

M25 Anti-clockwise Jct 10 to Jct 9 carriageway closure

Cleared Roadworks National Highways
Hersham M25 · M25 Anti-Clockwise At The Cobham Services Between J10 And J9

Cleared 2 hours 20 minutes ago

Started 12 Oct 2026, 21:00 Ended 12 Oct 2026, 21:00

M25 Anti-clockwise Jct 10 to Jct 9 carriageway closure

Category: Road Maintenance
View update

M25 Clockwise Jct 4 to Jct 5 carriageway closure

Cleared Roadworks National Highways
Dunton Green M25 · M25 Clockwise Between J4 And J5

Expected to clear in 5 hours 9 minutes

Started 12 Oct 2026, 21:00 Expected clear 13 Oct 2026, 04:30

M25 Clockwise Jct 4 to Jct 5 carriageway closure

Category: Road Maintenance
View update

M25 Clockwise Jct 4 to Jct 5 lane 1 closure

Cleared Roadworks National Highways
Dunton Green M25 · M25 Clockwise Within J5

Cleared 2 hours 15 minutes ago

Started 12 Oct 2026, 21:00 Ended 12 Oct 2026, 21:05

M25 Clockwise Jct 4 to Jct 5 lane 1 closure

Category: Road Maintenance
View update

M25 Anti-Clockwise Jct 17 Exit Slip Road Lane 1 Closure

Cleared Roadworks National Highways
Buckinghamshire M25 · M25 Anti-Clockwise Between J18 And J17

Cleared 1 hour 40 minutes ago

Started 12 Oct 2026, 21:00 Ended 12 Oct 2026, 21:40

M25 Anti-Clockwise Jct 17 Exit Slip Road Lane 1 Closure

Category: Road Maintenance
View update