A21 southbound lane 1 closure

Cleared

A21 southbound lane 1 closure

Start time
Tue, Mar 17, 2026 7:51 PM
Expected end
Wed, Mar 18, 2026 6:00 AM
Duration
10 hours 9 minutes
Road
A21 – A21 Southbound Within The A228 Junction
Category
Construction Work
Direction
Southbound
Carriageway
Dual Carriageway
Lanes affected
Lane 1 closed, 1 of 1 lanes affected
Reason
Construction Work
Active
Planned
Cleared
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First published
Tue, Mar 17, 2026 7:52 PM
Last updated
Tue, Mar 17, 2026 11:37 PM
Cleared
Wed, Mar 18, 2026 6:00 AM
  • Latest update: A21 southbound lane 1 closure
Coordinates
51.148106, 0.305753
Latitude span
51.141514 – 51.157700
Longitude span
0.303019 – 0.313319
Bounding box centre
51.149607, 0.308169
Location descriptions
  • A21 southbound within the A228 junction
  • A21 southbound between A228 and B2160
  • A21 southbound between A26 near Tonbridge (east) and A228
  • A21 southbound at a minor junction between A26 near Tonbridge (east) and A228
Feed validity status
Active
Overall feed start
Tue, Mar 17, 2026 7:51 PM
Overall feed end
Wed, Mar 18, 2026 6:00 AM
Feed window length
10 hours 9 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

2 coordinate pairs
Description
A21 southbound within the A228 junction
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{4F3B539A-69B2-429A-9A10-A32C3A080E3D}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
8 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.143443 0.308334
51.143396 0.308432

Segment 2

2 coordinate pairs
Description
A21 southbound between A228 and B2160
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{8D496642-1E28-4EA9-81C0-2B13AD0CFE6C}
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
51.143396 0.308432
51.143374 0.308479

Segment 3

6 coordinate pairs
Description
A21 southbound within the A228 junction
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{A496DEFA-B5AF-4D14-BB65-B33F8A43FC58}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
160 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.144411 0.306638
51.144319 0.306762
51.143873 0.307498
51.14363 0.307943
51.14348 0.308265
51.143443 0.308334

Segment 4

30 coordinate pairs
Description
A21 southbound between A26 near Tonbridge (east) and A228
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{6FF30500-1457-43C6-89E9-7BE44A35C459}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
1,027 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.15306 0.303281
51.152882 0.303262
51.15275 0.303243
51.152519 0.30321
51.152313 0.303184
51.151972 0.30314
51.151615 0.303095
51.151587 0.303092
51.151036 0.303044
51.150601 0.303026
51.15012 0.303019
51.149669 0.303033
51.149321 0.303074
51.148861 0.303182
51.1484 0.303316
51.147901 0.303522
51.147354 0.303811
51.147008 0.304022
51.146771 0.304168
51.146434 0.304408
51.146105 0.304678
51.146004 0.304773
51.145793 0.304963
51.145527 0.305235
51.145417 0.305359
51.145343 0.305441
51.145049 0.305783
51.144726 0.306211
51.144541 0.306444
51.144411 0.306638

Segment 5

8 coordinate pairs
Description
A21 southbound between A228 and B2160
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{705F9B6A-45D1-49D7-8D7C-39B9516F246C}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
341 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.143374 0.308479
51.143273 0.308712
51.142897 0.309551
51.142605 0.310237
51.142396 0.310755
51.142334 0.310924
51.142131 0.311471
51.141739 0.31261

Segment 6

8 coordinate pairs
Description
A21 southbound at a minor junction between A26 near Tonbridge (east) and A228
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{6800B32E-4473-422B-AD6E-9AF3CF63138B}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
370 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.156388 0.303459
51.155738 0.303327
51.155309 0.303276
51.154619 0.303255
51.154063 0.303253
51.153643 0.303268
51.153105 0.303282
51.15306 0.303281

Segment 7

5 coordinate pairs
Description
A21 southbound at a minor junction between A26 near Tonbridge (east) and A228
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{DBB148CE-0114-47BA-9D2F-47558396871F}
Linear Element Type
A Carriageway
From Distance
307 m
To Distance
457 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.1577 0.303975
51.157564 0.303902
51.157055 0.30367
51.156654 0.303529
51.156388 0.303459

Segment 8

3 coordinate pairs
Description
A21 southbound between A228 and B2160
Carriageway
Dual Carriageway
Lane Usage
Cl1
Lane Number
1
Lane Status
Closed
Lane Direction
Aligned
Lanes Restricted
1 lane restricted
Operational Lanes
1 operational lane
Direction On Section
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A21
Linear Element Model
The Network Model
Linear Element Id
{B1055048-6391-450D-BE49-22535E15E1A0}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
55 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.141739 0.31261
51.141663 0.312835
51.141514 0.313319
Geometry type
MultiLineString
Geometry points
64
First coordinate pair
0.308334, 51.143443
Road section segments
1
Road section points
64
View geometry JSON
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            ],
            [
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}
View road section coordinates
[
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        ],
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        ],
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        ]
    ]
]
Cause type
Construction Work
Detailed cause
Construction Work
Compliance
Mandatory
Probability
Certain
Validity status
Active
Road management
Other
Feed region label
Tonbridge
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Mar 17, 2026 7:52 PM
Record versioned
Tue, Mar 17, 2026 11:37 PM
Coordinate source
Geometry

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