A12 northbound Jct 21 carriageway closure

Cleared

Start time: Mon, Mar 2, 2026 8:33 PM
Expected end: Tue, Mar 3, 2026 5:00 AM
Duration: 8 hours 27 minutes
Road: A12 – A12 Northbound Within The B1389 Near Witham (South) Junction
Category: Construction Work
Direction: Northbound
Carriageway: Dual Carriageway
Reason: Construction Work

Active

Planned

Cleared

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First published: Mon, Mar 2, 2026 8:33 PM
Last updated: Tue, Mar 3, 2026 2:48 AM
Cleared: Tue, Mar 3, 2026 5:00 AM

Latest update: A12 northbound Jct 21 carriageway closure

Coordinates: 51.783874, 0.617355
Latitude span: 51.781693 – 51.785211
Longitude span: 0.612083 – 0.623471
Bounding box centre: 51.783452, 0.617777
Location descriptions: A12 northbound within the B1389 near Witham (south) junction

A12 northbound between B1389 near Witham (south) and B1389 near Witham (north)

A12 northbound between B1137 and B1389 near Witham (south)

Feed validity status: Active
Overall feed start: Mon, Mar 2, 2026 8:33 PM
Overall feed end: Tue, Mar 3, 2026 5:00 AM
Feed window length: 8 hours 27 minutes
Probability code (raw): certain
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

12 coordinate pairs

Description: A12 northbound within the B1389 near Witham (south) junction
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: {4337DA7C-1397-4AD5-9D4B-A084C6C7CD4A}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 302 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.782677 0.614031
51.782772 0.614211
51.783074 0.614808
51.783393 0.615407
51.783557 0.615706
51.78372 0.616078
51.78384 0.616361
51.783951 0.616628
51.784044 0.616894
51.784146 0.617161
51.784194 0.617304
51.78428 0.617556

Segment 2

5 coordinate pairs

Description: A12 northbound between B1389 near Witham (south) and B1389 near Witham (north)
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: {80A2F75D-3591-4406-8706-FADF3B0E21CA}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 200 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.784923 0.620599
51.785057 0.621854
51.785138 0.622685
51.785145 0.622758
51.785211 0.623471

Segment 3

7 coordinate pairs

Description: A12 northbound within the B1389 near Witham (south) junction
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: {AC8E23F4-D6C8-4BCC-9A30-BB0F31AA7618}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 222 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.78428 0.617556
51.784305 0.617678
51.784595 0.618768
51.784773 0.619663
51.784886 0.620264
51.784909 0.620454
51.784923 0.620599

Segment 4

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

Geometry type: MultiLineString
Geometry points: 29
First coordinate pair: 0.614031, 51.782677
Road section segments: 1
Road section points: 29

View geometry JSON

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                0.614031,
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            ],
            [
                0.615407,
                51.783393
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            [
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            [
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        ]
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}

View road section coordinates

Cause type: Construction Work
Detailed cause: Construction Work
Compliance: Mandatory
Probability: Certain
Validity status: Active
Road management: Carriageway Closures
Feed region label: Witham