Crash View

A12 northbound Jct 29 to Jct 30 lane 2 closure (MP 166/3 to 170/6)

Cleared

A12 northbound Jct 29 to Jct 30 lane 2 closure (MP 166/3 to 170/6)

Start time
Wed, Dec 10, 2025 9:00 PM
Expected end
Thu, Dec 11, 2025 5:00 AM
Duration
8 hours
Road
A12 – A12 Northbound Between A120 Near Colchester (East) And B1029
Category
Road Maintenance
Direction
Northbound
Carriageway
Dual Carriageway
Lanes affected
Lane 2 closed, 1 of 1 lanes affected
Reason
Repair Work
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Nov 25, 2025 12:29 PM
Last updated
Wed, Dec 10, 2025 8:24 AM
Cleared
Thu, Dec 11, 2025 5:00 AM
  • Latest update: A12 northbound Jct 29 to Jct 30 lane 2 closure (MP 166/3 to 170/6)
Coordinates
51.936038, 0.947391
Latitude span
51.924435 – 51.953544
Longitude span
0.928726 – 0.962976
Bounding box centre
51.938990, 0.945851
Location descriptions
  • A12 northbound between A120 near Colchester (east) and B1029
  • A12 northbound within the A120 near Colchester (east) junction
  • A12 northbound at a minor junction between A120 near Colchester (east) and B1029
Feed validity status
Planned
Overall feed start
Wed, Dec 10, 2025 9:00 PM
Overall feed end
Thu, Dec 11, 2025 5:00 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

8 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{40784D21-AB0F-4EA9-BDF7-BB5C62A14EAF}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
550 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.940835 0.953571
51.941827 0.954412
51.942462 0.954921
51.943114 0.955443
51.943547 0.955777
51.944164 0.956254
51.944906 0.956812
51.945277 0.957084

Segment 2

8 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
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
314 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
51.929789 0.943467
51.931446 0.944477
51.931632 0.94459
51.93172 0.94463
51.931759 0.944631

Segment 3

17 coordinate pairs
Description
A12 northbound within the A120 near Colchester (east) junction
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{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

6 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{2F3FEF2C-BA4C-47D3-B28E-FB03D1CD17A2}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
282 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.937123 0.950666
51.937348 0.950854
51.938338 0.951637
51.938689 0.951943
51.939111 0.952266
51.939401 0.952488

Segment 5

4 coordinate pairs
Description
A12 northbound at a minor junction between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{D42C1647-56FB-4DF5-9E66-1B42E4B1EC26}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
176 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.939401 0.952488
51.939903 0.952876
51.940379 0.953245
51.940835 0.953571

Segment 6

4 coordinate pairs
Description
A12 northbound within the A120 near Colchester (east) junction
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{88E6D094-E996-4CFF-BF76-231FD9EC44B1}
Linear Element Type
A Carriageway
From Distance
420 m
To Distance
526 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.924659 0.928726
51.924633 0.928925
51.924548 0.929698
51.924506 0.930243

Segment 7

10 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{9DBD4F5E-99B6-449C-8331-7C665C9742E9}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
404 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.948525 0.959061
51.948652 0.959123
51.948972 0.959277
51.949273 0.959457
51.950187 0.959954
51.950906 0.960336
51.95103 0.960417
51.951277 0.960594
51.951524 0.96077
51.95194 0.961074

Segment 8

5 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{C1193369-174D-40F1-94E7-4C05E8A98C2A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
199 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.95194 0.961074
51.952256 0.961371
51.952746 0.961913
51.95306 0.962298
51.95339 0.962771

Segment 9

13 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{998C460A-902D-4610-8657-5221B5FA112E}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
386 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.945277 0.957084
51.94548 0.957214
51.945728 0.957384
51.945878 0.957487
51.94648 0.957876
51.946701 0.958022
51.946914 0.958123
51.947056 0.958203
51.947615 0.958519
51.948466 0.959026
51.948499 0.959047
51.948519 0.959058
51.948525 0.959061

Segment 10

3 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{CFE28B3C-E98B-44CD-8110-AEED063F803D}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
27 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.931759 0.944631
51.931969 0.944773
51.931983 0.944785

Segment 11

5 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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 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 12

13 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{FB6D5241-2BC6-4B8A-9630-FDD1A964394E}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
704 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.931983 0.944785
51.932249 0.945008
51.932427 0.945153
51.932778 0.945481
51.933096 0.945851
51.933481 0.946344
51.933872 0.946918
51.934735 0.94817
51.93503 0.948597
51.935414 0.949073
51.935724 0.949452
51.936158 0.949864
51.937123 0.950666

Segment 13

15 coordinate pairs
Description
A12 northbound within the A120 near Colchester (east) junction
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
{E4B79E2B-8D47-49A8-BE65-527F61CCD28A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
545 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
51.926935 0.940873
51.927251 0.941312
51.927513 0.94162
51.927912 0.942028

Segment 14

3 coordinate pairs
Description
A12 northbound between A120 near Colchester (east) and B1029
Carriageway
Dual Carriageway
Lane Usage
Cl2
Lane Number
2
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
Start2 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{F373291E-F428-448A-AEE7-92D0BF86AB11}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
22 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.95339 0.962771
51.953434 0.962817
51.953544 0.962976
Geometry type
MultiLineString
Geometry points
114
First coordinate pair
0.953571, 51.940835
Road section segments
1
Road section points
114
View geometry JSON 
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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                0.94817,
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            ],
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            ],
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            ],
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            ],
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            ],
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                0.950666,
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            ],
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                0.936019,
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            ],
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                0.936397,
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            ],
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            ],
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            ],
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}
View road section coordinates 
[
    [
        [
            0.953571,
            51.940835
        ],
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]
Cause type
Road Maintenance
Detailed cause
Repair Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed region label
Colchester
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Tue, Nov 25, 2025 12:29 PM
Record versioned
Wed, Dec 10, 2025 8:24 AM
Coordinate source
Geometry

Driving on the A12? See every live closure, roadwork and planned restriction on this road.

A12 live closures

Related incidents

A120 eastbound Ardleigh to Bromley lane closure (MP 153/6 to 154/6)

Planned Roadworks National Highways
Colchester A120 · A120 Eastbound Between A12 Near Colchester (East) And A133

Starts in 2 hours 10 minutes

Starts 14 Jun 2026, 19:00 Expected clear 15 Jun 2026, 04:00

A120 eastbound Ardleigh to Bromley lane closure (MP 153/6 to 154/6)

Category: Road Maintenance
View update

A12 northbound Jct 11 to Jct 12 lane 2 closure

Cleared Roadworks National Highways
Havering A12 · A12 Northbound Between M25 And A1023

Cleared 12 hours 49 minutes ago

Started 13 Jun 2026, 20:00 Ended 14 Jun 2026, 04:00

A12 northbound Jct 11 to Jct 12 lane 2 closure

Category: Road Maintenance
View update

A12 northbound Jct 15 to Jct 19 carriageway closure

Cleared Roadworks National Highways
Chelmsford A12 · A12 Northbound Between B1007 And A1114/A130

Cleared 12 hours 49 minutes ago

Started 13 Jun 2026, 20:00 Ended 14 Jun 2026, 04:00

A12 northbound Jct 15 to Jct 19 carriageway closure

Category: Road Maintenance
View update

A12 northbound Ipswich Road exit slip carriageway closure

Cleared Roadworks National Highways
Colchester A12 · A12 Northbound Between A120 Near Colchester (East) And B1029

Cleared 1 day 12 hours ago

Started 13 Jun 2026, 01:00 Ended 13 Jun 2026, 04:00

A12 northbound Ipswich Road exit slip carriageway closure

Category: Road Maintenance
View update

A12 northbound Jct 28 exit slip carriageway closure

Cleared Roadworks National Highways
Colchester A12 · A12 Northbound Exit At A Minor Junction Between A133 And A120 Near Colchester (East)

Cleared 1 day 18 hours ago

Started 12 Jun 2026, 22:00 Ended 12 Jun 2026, 22:40

A12 northbound Jct 28 exit slip carriageway closure

Category: Road Maintenance
View update

A12 northbound Jct 28 entry slip carriageway closure

Cleared Roadworks National Highways
Colchester A12 · A12 Northbound Between A133 And A120 Near Colchester (East)

Cleared 1 day 20 hours ago

Started 12 Jun 2026, 20:00 Ended 12 Jun 2026, 20:00

A12 northbound Jct 28 entry slip carriageway closure

Category: Road Maintenance
View update