A12 northbound Jct 29 entry slip carriageway closure

Active

Start time: Mon, Oct 19, 2026 8:16 PM
Expected end: Tue, Oct 20, 2026 4:00 AM
Duration: 7 hours 44 minutes
Road: A12 – A12 Northbound Access From A120 Near Colchester (East)
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Reason: Maintenance Work

Live incident

Active roadworks

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Cleared

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First published: Mon, Oct 19, 2026 8:16 PM
Last updated: Mon, Oct 19, 2026 10:50 PM
Cleared: Tue, Oct 20, 2026 4:00 AM

Latest update: A12 northbound Jct 29 entry slip carriageway closure

Coordinates: 51.925911, 0.938352
Latitude span: 51.922435 – 51.929588
Longitude span: 0.934691 – 0.943344
Bounding box centre: 51.926012, 0.939018
Location descriptions: A12 northbound access from A120 near Colchester (east)

A12 northbound between A120 near Colchester (east) and B1029

A12 northbound within the A120 near Colchester (east) junction

A12 southbound within the A120 near Colchester (east) junction

Feed validity status: Active
Overall feed start: Mon, Oct 19, 2026 8:16 PM
Overall feed end: Tue, Oct 20, 2026 4:00 AM
Feed window length: 7 hours 44 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

10 coordinate pairs

Description: A12 northbound access from A120 near Colchester (east)
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {9DB9E026-CF35-4400-ACD9-8B733C5418C5}
Linear Element Type: A Carriageway Entry Slip
From Distance: 8 m
To Distance: 279 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.922435 0.934691
51.9226 0.934938
51.922671 0.935001
51.922732 0.935063
51.922768 0.93508
51.922901 0.935147
51.923113 0.935233
51.924512 0.935805
51.924601 0.935854
51.924717 0.935934

Segment 2

5 coordinate pairs

Description: A12 northbound between A120 near Colchester (east) and B1029
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {071ACD65-A049-4626-A658-523ADFCD9B8C}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 150 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.927912 0.942028
51.928111 0.942222
51.928525 0.942599
51.928824 0.942836
51.929116 0.94303

Segment 3

20 coordinate pairs

Description: A12 northbound within the A120 near Colchester (east) junction
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {6D7FE6B7-DB59-415E-8A9F-6F434F274D54}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 548 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.924852 0.936019
51.925051 0.936189
51.925139 0.936282
51.925244 0.936391
51.92534 0.936513
51.925522 0.936773
51.925703 0.93709
51.925763 0.937225
51.925822 0.93736
51.92595 0.937659
51.926009 0.937823
51.926058 0.938015
51.926091 0.938119
51.926294 0.939005
51.926384 0.93936
51.926476 0.939657
51.926552 0.939851
51.926679 0.940165
51.926917 0.94069
51.927912 0.942028

Segment 4

2 coordinate pairs

Description: A12 southbound within the A120 near Colchester (east) junction
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {75B1B94A-5BFB-48B9-B278-080110EC2DD6}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 16 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.924717 0.935934
51.924852 0.936019

Segment 5

4 coordinate pairs

Description: A12 northbound between A120 near Colchester (east) and B1029
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: North Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {A8CFE18D-1A79-4A73-9113-B67461F33F78}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 56 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.929116 0.94303
51.929302 0.943159
51.92947 0.943271
51.929588 0.943344

Geometry type: MultiLineString
Geometry points: 41
First coordinate pair: 0.934691, 51.922435
Road section segments: 1
Road section points: 41

View geometry JSON

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}

View road section coordinates

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