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

Active

Start time: Sun, Oct 18, 2026 8:29 PM
Expected end: Mon, Oct 19, 2026 4:00 AM
Duration: 7 hours 31 minutes
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

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: Sun, Oct 18, 2026 8:29 PM
Last updated: Sun, Oct 18, 2026 9:18 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: Active
Overall feed start: Sun, Oct 18, 2026 8:29 PM
Overall feed end: Mon, Oct 19, 2026 4:00 AM
Feed window length: 7 hours 31 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

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
            ],
            [
                0.59315,
                51.776703
            ],
            [
                0.593978,
                51.77693
            ],
            [
                0.599624,
                51.778239
            ],
            [
                0.59983,
                51.77828
            ],
            [
                0.600401,
                51.778375
            ],
            [
                0.602359,
                51.778638
            ],
            [
                0.602803,
                51.778719
            ]
        ]
    ]
}

View road section coordinates

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