A12 northbound Jct 21 exit slip carriageway closure

Planned

Start time: Tue, May 12, 2026 8:00 PM
Expected end: Wed, May 13, 2026 4:00 AM
Duration: 8 hours
Road: A12 – A12 Northbound Between B1137 And B1389 Near Witham (South)
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Reason: Roadworks

Active

Planned

Cleared

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First published: Tue, May 12, 2026 4:37 AM
Last updated: Tue, May 12, 2026 7:58 PM
Cleared: Wed, May 13, 2026 4:00 AM

Latest update: A12 northbound Jct 21 exit slip carriageway closure

Coordinates: 51.782745, 0.614026
Latitude span: 51.781693 – 51.783492
Longitude span: 0.612083 – 0.615227
Bounding box centre: 51.782593, 0.613655
Location descriptions: A12 northbound between B1137 and B1389 near Witham (south)

A12 northbound exit for B1389 near Witham (south)

Feed validity status: Planned
Overall feed start: Tue, May 12, 2026 8:00 PM
Overall feed end: Wed, May 13, 2026 4:00 AM
Feed window length: 8 hours
Probability code (raw): probable
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

5 coordinate pairs

Description: A12 northbound between B1137 and B1389 near Witham (south)
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
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: {87228FE9-B9C4-45C0-B1D4-364DB9726EE4}
Linear Element Type: A Carriageway
From Distance: 620 m
To Distance: 794 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.781693 0.612083
51.781789 0.612327
51.782107 0.612998
51.782288 0.613356
51.782677 0.614031

Segment 2

9 coordinate pairs

Description: A12 northbound exit for B1389 near Witham (south)
Lanes Restricted: 1 lane restricted
Operational Lanes: 0 operational lanes
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: {07AEAA19-B2A1-4CDF-BE9C-B296BD11C415}
Linear Element Type: A Carriageway Exit Slip
From Distance: 0 m
To Distance: 122 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.782677 0.614031
51.782704 0.614062
51.782869 0.614303
51.783009 0.614471
51.783114 0.614608
51.783219 0.614759
51.78334 0.614954
51.783453 0.615149
51.783492 0.615227

Geometry type: MultiLineString
Geometry points: 14
First coordinate pair: 0.612083, 51.781693
Road section segments: 1
Road section points: 14

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                0.612083,
                51.781693
            ],
            [
                0.612327,
                51.781789
            ],
            [
                0.612998,
                51.782107
            ],
            [
                0.613356,
                51.782288
            ],
            [
                0.614031,
                51.782677
            ],
            [
                0.614031,
                51.782677
            ],
            [
                0.614062,
                51.782704
            ],
            [
                0.614303,
                51.782869
            ],
            [
                0.614471,
                51.783009
            ],
            [
                0.614608,
                51.783114
            ],
            [
                0.614759,
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            ],
            [
                0.614954,
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            ],
            [
                0.615149,
                51.783453
            ],
            [
                0.615227,
                51.783492
            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Carriageway Closures
Feed region label: Witham