Crash View

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

Planned

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

Start time
Mon, Oct 12, 2026 9:00 PM
Expected end
Tue, Oct 13, 2026 4:30 AM
Duration
7 hours 30 minutes
Road
M25 – M25 Clockwise Within J21
Category
Road Maintenance
Direction
Clockwise
Carriageway
Dual Carriageway
Lanes affected
Lane 3 closed, 1 of 3 lanes affected, 1 of 4 lanes affected
Reason
Roadworks
Live incident
Active roadworks
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
Get a property report
First published
Fri, Sep 18, 2026 9:20 AM
Last updated
Mon, Oct 12, 2026 3:50 PM
Cleared
Tue, Oct 13, 2026 4:30 AM
  • Latest update: M25 Clockwise jct 21 to Jct 21A Lane 4,3 closure
Coordinates
51.715469, -0.391120
Latitude span
51.714083 – 51.716536
Longitude span
-0.406387 – -0.381687
Bounding box centre
51.715310, -0.394037
Location descriptions
  • M25 clockwise within J21
  • M25 clockwise between J20 and J21
Feed validity status
Planned
Overall feed start
Mon, Oct 12, 2026 9:00 PM
Overall feed end
Tue, Oct 13, 2026 4:30 AM
Feed window length
7 hours 30 minutes
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

18 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
3 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 2

10 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
4 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 3

9 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
3 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
210 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
51.716536 -0.381687

Segment 4

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
3 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 5

7 coordinate pairs
Description
M25 clockwise between J20 and J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
4 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
478 m
To Distance
938 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.714132 -0.406387
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 6

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
3 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 7

2 coordinate pairs
Description
M25 clockwise within J21
Carriageway
Dual Carriageway
Lane Usage
Cl3
Lane Number
3
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
3 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
Geometry type
MultiLineString
Geometry points
50
First coordinate pair
-0.394126, 51.714801
Road section segments
1
Road section points
50
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.394126,
                51.714801
            ],
            [
                -0.393241,
                51.714972
            ],
            [
                -0.39226,
                51.715177
            ],
            [
                -0.392084,
                51.715218
            ],
            [
                -0.391129,
                51.71544
            ],
            [
                -0.390417,
                51.715605
            ],
            [
                -0.390278,
                51.715638
            ],
            [
                -0.389977,
                51.715703
            ],
            [
                -0.38941,
                51.715826
            ],
            [
                -0.388543,
                51.715985
            ],
            [
                -0.387739,
                51.71612
            ],
            [
                -0.387529,
                51.716148
            ],
            [
                -0.387017,
                51.716215
            ],
            [
                -0.386639,
                51.716252
            ],
            [
                -0.385952,
                51.716339
            ],
            [
                -0.385908,
                51.716344
            ],
            [
                -0.385427,
                51.716379
            ],
            [
                -0.385353,
                51.716383
            ],
            [
                -0.39972,
                51.714125
            ],
            [
                -0.399601,
                51.714128
            ],
            [
                -0.399117,
                51.714158
            ],
            [
                -0.399013,
                51.714164
            ],
            [
                -0.398034,
                51.714241
            ],
            [
                -0.397458,
                51.714299
            ],
            [
                -0.396876,
                51.714373
            ],
            [
                -0.396574,
                51.714416
            ],
            [
                -0.395929,
                51.714509
            ],
            [
                -0.394126,
                51.714801
            ],
            [
                -0.384719,
                51.716425
            ],
            [
                -0.38391,
                51.716467
            ],
            [
                -0.383765,
                51.716473
            ],
            [
                -0.383703,
                51.716476
            ],
            [
                -0.38301,
                51.716519
            ],
            [
                -0.382631,
                51.716529
            ],
            [
                -0.381765,
                51.716536
            ],
            [
                -0.381753,
                51.716536
            ],
            [
                -0.381687,
                51.716536
            ],
            [
                -0.385353,
                51.716383
            ],
            [
                -0.385286,
                51.716392
            ],
            [
                -0.406387,
                51.714132
            ],
            [
                -0.405145,
                51.714123
            ],
            [
                -0.403634,
                51.714111
            ],
            [
                -0.402091,
                51.71409
            ],
            [
                -0.401328,
                51.714083
            ],
            [
                -0.400546,
                51.714098
            ],
            [
                -0.39972,
                51.714125
            ],
            [
                -0.385032,
                51.716413
            ],
            [
                -0.384719,
                51.716425
            ],
            [
                -0.385286,
                51.716392
            ],
            [
                -0.385032,
                51.716413
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            -0.394126,
            51.714801
        ],
        [
            -0.393241,
            51.714972
        ],
        [
            -0.39226,
            51.715177
        ],
        [
            -0.392084,
            51.715218
        ],
        [
            -0.391129,
            51.71544
        ],
        [
            -0.390417,
            51.715605
        ],
        [
            -0.390278,
            51.715638
        ],
        [
            -0.389977,
            51.715703
        ],
        [
            -0.38941,
            51.715826
        ],
        [
            -0.388543,
            51.715985
        ],
        [
            -0.387739,
            51.71612
        ],
        [
            -0.387529,
            51.716148
        ],
        [
            -0.387017,
            51.716215
        ],
        [
            -0.386639,
            51.716252
        ],
        [
            -0.385952,
            51.716339
        ],
        [
            -0.385908,
            51.716344
        ],
        [
            -0.385427,
            51.716379
        ],
        [
            -0.385353,
            51.716383
        ],
        [
            -0.39972,
            51.714125
        ],
        [
            -0.399601,
            51.714128
        ],
        [
            -0.399117,
            51.714158
        ],
        [
            -0.399013,
            51.714164
        ],
        [
            -0.398034,
            51.714241
        ],
        [
            -0.397458,
            51.714299
        ],
        [
            -0.396876,
            51.714373
        ],
        [
            -0.396574,
            51.714416
        ],
        [
            -0.395929,
            51.714509
        ],
        [
            -0.394126,
            51.714801
        ],
        [
            -0.384719,
            51.716425
        ],
        [
            -0.38391,
            51.716467
        ],
        [
            -0.383765,
            51.716473
        ],
        [
            -0.383703,
            51.716476
        ],
        [
            -0.38301,
            51.716519
        ],
        [
            -0.382631,
            51.716529
        ],
        [
            -0.381765,
            51.716536
        ],
        [
            -0.381753,
            51.716536
        ],
        [
            -0.381687,
            51.716536
        ],
        [
            -0.385353,
            51.716383
        ],
        [
            -0.385286,
            51.716392
        ],
        [
            -0.406387,
            51.714132
        ],
        [
            -0.405145,
            51.714123
        ],
        [
            -0.403634,
            51.714111
        ],
        [
            -0.402091,
            51.71409
        ],
        [
            -0.401328,
            51.714083
        ],
        [
            -0.400546,
            51.714098
        ],
        [
            -0.39972,
            51.714125
        ],
        [
            -0.385032,
            51.716413
        ],
        [
            -0.384719,
            51.716425
        ],
        [
            -0.385286,
            51.716392
        ],
        [
            -0.385032,
            51.716413
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Roadworks
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Fri, Sep 18, 2026 9:20 AM
Record versioned
Mon, Oct 12, 2026 3:50 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 30 exit slip lane 1 closure

Planned Roadworks National Highways
Havering M25 · M25 J30 Clockwise Exit

Starts in 4 hours 27 minutes

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

M25 Clockwise Jct 30 exit slip lane 1 closure

Category: Road Maintenance
View update

M25 Anti-clockwise Jct 10 to Jct 9 carriageway closure

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

Starts in 4 hours 27 minutes

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

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 11 hours 57 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

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

Starts in 4 hours 27 minutes

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

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

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

Starts in 4 hours 27 minutes

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

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

Category: Road Maintenance
View update

M1 southbound Jct 9 to Jct 8 carriageway closure

Planned Roadworks National Highways
St Albans M1 · M1 Southbound Within J9

Starts in 3 hours 27 minutes

Starts 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 04:00

M1 southbound Jct 9 to Jct 8 carriageway closure

Category: Construction Work
View update