A12 northbound Jct 20B to Jct 21 lane closure (MP 135/2 to 136/0)

Planned

Start time: Sun, Oct 18, 2026 8:00 PM
Expected end: Mon, Oct 19, 2026 4:00 AM
Duration: 8 hours
Road: A12 – A12 Northbound Within The B1137 Junction
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Lanes affected: Lane 2 closed, 1 of 1 lanes affected
Reason: Repair Work

Live incident

Active roadworks

Planned

Cleared

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First published: Thu, Oct 8, 2026 2:08 PM
Last updated: Sun, Oct 18, 2026 8:33 PM
Cleared: Mon, Oct 19, 2026 4:00 AM

Latest update: A12 northbound Jct 20B to Jct 21 lane closure (MP 135/2 to 136/0)

Coordinates: 51.777648, 0.597266
Latitude span: 51.776355 – 51.778719
Longitude span: 0.591942 – 0.602803
Bounding box centre: 51.777537, 0.597373
Location descriptions: A12 northbound within the B1137 junction

Feed validity status: Planned
Overall feed start: Sun, Oct 18, 2026 8:00 PM
Overall feed end: Mon, Oct 19, 2026 4:00 AM
Feed window length: 8 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

6 coordinate pairs

Description: A12 northbound within the B1137 junction
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {DE98F077-C0DF-45E3-9965-ED55E94E67E3}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 416 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.77693 0.593978
51.777229 0.595184
51.777553 0.596482
51.777938 0.598186
51.778175 0.599302
51.778239 0.599624

Segment 2

4 coordinate pairs

Description: A12 northbound within the B1137 junction
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {C0CD02CD-8BEA-4E6C-9391-702A4E5B0F0C}
Linear Element Type: A Carriageway
From Distance: 184 m
To Distance: 338 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.776355 0.591942
51.77641 0.592144
51.776703 0.59315
51.77693 0.593978

Segment 3

5 coordinate pairs

Description: A12 northbound within the B1137 junction
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 1 operational lane
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {1F25CF15-B1E6-4F3D-93D0-5261800CD245}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 225 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.778239 0.599624
51.77828 0.59983
51.778375 0.600401
51.778638 0.602359
51.778719 0.602803

Geometry type: MultiLineString
Geometry points: 15
First coordinate pair: 0.593978, 51.776930
Road section segments: 1
Road section points: 15

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                0.593978,
                51.77693
            ],
            [
                0.595184,
                51.777229
            ],
            [
                0.596482,
                51.777553
            ],
            [
                0.598186,
                51.777938
            ],
            [
                0.599302,
                51.778175
            ],
            [
                0.599624,
                51.778239
            ],
            [
                0.591942,
                51.776355
            ],
            [
                0.592144,
                51.77641
            ],
            [
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            ],
            [
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                51.77693
            ],
            [
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            ],
            [
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            ],
            [
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            ],
            [
                0.602359,
                51.778638
            ],
            [
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            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Repair Work
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other