A12 northbound Jct 29 entry to exit slip carriageway closure

Cleared

Start time: Fri, Apr 24, 2026 8:00 PM
Expected end: Sat, Apr 25, 2026 4:00 AM
Duration: 8 hours
Road: A12 – A12 Northbound Between A133 And A120 Near Colchester (East)
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Fri, Apr 24, 2026 9:57 AM
Last updated: Fri, Apr 24, 2026 2:05 PM
Cleared: Sat, Apr 25, 2026 4:00 AM

Latest update: A12 northbound Jct 29 entry to exit slip carriageway closure

Coordinates: 51.925050, 0.932221
Latitude span: 51.924435 – 51.926822
Longitude span: 0.921680 – 0.940711
Bounding box centre: 51.925629, 0.931196
Location descriptions: A12 northbound between A133 and A120 near Colchester (east)

A12 northbound within the A120 near Colchester (east) junction

Feed validity status: Planned
Overall feed start: Fri, Apr 24, 2026 8:00 PM
Overall feed end: Sat, Apr 25, 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

4 coordinate pairs

Description: A12 northbound between A133 and 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 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {141914E4-69D1-4F65-AA3D-AB83CFC40C6F}
Linear Element Type: A Carriageway
From Distance: 347 m
To Distance: 417 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.925364 0.92168
51.925355 0.921837
51.925353 0.921852
51.92529 0.922697

Segment 2

9 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: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {88E6D094-E996-4CFF-BF76-231FD9EC44B1}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 526 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.92529 0.922697
51.925183 0.923673
51.925061 0.924946
51.925039 0.925177
51.925001 0.925553
51.924697 0.928435
51.924633 0.928925
51.924548 0.929698
51.924506 0.930243

Segment 3

17 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: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {8345D8F3-4FB7-40E4-867C-49EE75C415C6}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 402 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.924506 0.930243
51.924498 0.930373
51.924488 0.930489
51.924475 0.930756
51.924443 0.931322
51.924435 0.931983
51.92446 0.932499
51.924471 0.932704
51.924497 0.933186
51.924542 0.933887
51.924564 0.934106
51.924639 0.934708
51.924685 0.935002
51.924729 0.935339
51.924745 0.935468
51.92482 0.935893
51.924852 0.936019

Segment 4

12 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: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {E4B79E2B-8D47-49A8-BE65-527F61CCD28A}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 393 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.924852 0.936019
51.924935 0.936397
51.925092 0.936977
51.925221 0.93732
51.92538 0.937796
51.925565 0.938288
51.925726 0.938692
51.925982 0.939246
51.926239 0.939758
51.926515 0.940256
51.926618 0.940423
51.926822 0.940711

Geometry type: MultiLineString
Geometry points: 42
First coordinate pair: 0.921680, 51.925364
Road section segments: 1
Road section points: 42

View geometry JSON

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}

View road section coordinates

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