A12 northbound Jct 18 to19 lane 1 closure (MP 111/8 to 114/1)

Cleared

Start time: Fri, Jul 24, 2026 8:00 PM
Expected end: Sat, Jul 25, 2026 4:00 AM
Duration: 8 hours
Road: A12 – A12 Northbound Between B1002 And A414 Near Chelmsford (West)
Category: Road Maintenance
Direction: Northbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 1 lanes affected, 1 of 2 lanes affected
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Thu, Jun 11, 2026 1:09 PM
Last updated: Sat, Jul 25, 2026 3:51 AM
Cleared: Sat, Jul 25, 2026 4:00 AM

Latest update: A12 northbound Jct 18 to19 lane 1 closure (MP 111/8 to 114/1)

Coordinates: 51.675950, 0.387884
Latitude span: 51.672146 – 51.682189
Longitude span: 0.377346 – 0.399702
Bounding box centre: 51.677168, 0.388524
Location descriptions: A12 northbound between B1002 and A414 near Chelmsford (west)

Feed validity status: Planned
Overall feed start: Fri, Jul 24, 2026 8:00 PM
Overall feed end: Sat, Jul 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: other
Contra-flow flag (raw): false
Width restriction flag (raw): false
Height restriction flag (raw): false
Weight restriction flag (raw): false

Segment 1

24 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
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: {2785111E-63A7-4D64-8765-3A61656D3D00}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 1,142 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.673333 0.378787
51.673527 0.379059
51.67392 0.379636
51.674188 0.380133
51.674456 0.380709
51.674598 0.381066
51.674736 0.381449
51.67493 0.382058
51.675092 0.382646
51.675249 0.383431
51.675365 0.384233
51.675423 0.385038
51.675452 0.385437
51.675452 0.385626
51.675448 0.386901
51.675458 0.388509
51.675491 0.389202
51.675572 0.389913
51.675639 0.390363
51.675767 0.391017
51.675973 0.391858
51.676204 0.392571
51.676452 0.39319
51.676721 0.393782

Segment 2

5 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
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: {77609B5B-2E78-4DB8-A903-8083555E6ACD}
Linear Element Type: A Carriageway
From Distance: 1,082 m
To Distance: 1,248 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.672146 0.377346
51.67234 0.377572
51.672728 0.378027
51.673166 0.378564
51.673333 0.378787

Segment 3

12 coordinate pairs

Description: A12 northbound between B1002 and A414 near Chelmsford (west)
Carriageway: Dual Carriageway
Lane Usage: Cl1
Lane Number: 1
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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: {D28C671A-6E9D-4B8C-82AF-AA534761EBAD}
Linear Element Type: A Carriageway
From Distance: 0 m
To Distance: 738 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.676721 0.393782
51.676854 0.394049
51.677012 0.394328
51.67742 0.395016
51.677753 0.395467
51.678148 0.395922
51.678236 0.396014
51.678607 0.39638
51.679842 0.397531
51.681198 0.398783
51.681802 0.399341
51.682189 0.399702

Geometry type: MultiLineString
Geometry points: 41
First coordinate pair: 0.378787, 51.673333
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: Probable
Validity status: Planned
Road management: Other
Feed region label: Chelmsford