A12 southbound Jct 19 to Jct 18 lane closure (MP 128/3 to 126/6)

Cleared

Start time: Wed, Oct 7, 2026 8:00 PM
Expected end: Thu, Oct 8, 2026 4:00 AM
Duration: 3 hours 35 minutes 2 seconds
Road: A12 – A12 Southbound Between A138/A130 And A414 Near Chelmsford (East)
Category: Road Maintenance
Direction: Southbound
Carriageway: Dual Carriageway
Lanes affected: Lane 1 closed, 1 of 1 lanes affected
Reason: Maintenance Work

Live incident

Active roadworks

Planned

Cleared

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First published: Thu, Oct 1, 2026 2:37 AM
Last updated: Wed, Oct 7, 2026 11:02 PM
Cleared: Wed, Oct 7, 2026 11:35 PM

Latest update: A12 southbound Jct 19 to Jct 18 lane closure (MP 128/3 to 126/6)

Coordinates: 51.736573, 0.521903
Latitude span: 51.728967 – 51.744494
Longitude span: 0.520055 – 0.524709
Bounding box centre: 51.736731, 0.522382
Location descriptions: A12 southbound between A138/A130 and A414 near Chelmsford (east)

Feed validity status: Planned
Overall feed start: Wed, Oct 7, 2026 8:00 PM
Overall feed end: Thu, Oct 8, 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 southbound between A138/A130 and A414 near Chelmsford (east)
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: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {2C84188A-34BB-4862-B16F-947848F10A93}
Linear Element Type: B Carriageway
From Distance: 901 m
To Distance: 2,417 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.744494 0.520063
51.744494 0.520063
51.744296 0.520063
51.743666 0.520061
51.743298 0.520055
51.742839 0.520058
51.74229 0.5201
51.74192 0.520137
51.741307 0.520219
51.740856 0.520295
51.740232 0.52042
51.739898 0.520503
51.739355 0.520646
51.737498 0.521253
51.735822 0.52184
51.735714 0.521863
51.735387 0.522004
51.734626 0.522266
51.733992 0.522487
51.733085 0.522803
51.73236 0.52309
51.732314 0.523108
51.731389 0.523505
51.731097 0.523639

Segment 2

2 coordinate pairs

Description: A12 southbound between A138/A130 and A414 near Chelmsford (east)
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: South Bound
Direction Relative: Aligned
Height Grade: Start2 End2
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {6C74BBDF-DBDB-4FE8-A80F-5AFD290D91E0}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 9 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.730636 0.523851
51.730558 0.523887

Segment 3

3 coordinate pairs

Description: A12 southbound between A138/A130 and A414 near Chelmsford (east)
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: South Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {B76561A9-E9D4-4842-9F21-ADD8B8E80080}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 185 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.730558 0.523887
51.729089 0.524637
51.728967 0.524709

Segment 4

2 coordinate pairs

Description: A12 southbound between A138/A130 and A414 near Chelmsford (east)
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: South Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: A12
Linear Element Model: The Network Model
Linear Element Id: {2AD6E53A-3E8E-48D0-836C-0F4248575125}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 53 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.731097 0.523639
51.730636 0.523851

Geometry type: MultiLineString
Geometry points: 31
First coordinate pair: 0.520063, 51.744494
Road section segments: 1
Road section points: 31

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