A12 northbound Jct 29 to Jct 31 carriageway closure
ClearedA12 northbound Jct 29 to Jct 31 carriageway closure
- Start time
- Sun, Apr 19, 2026 8:00 PM
- Expected end
- Mon, Apr 20, 2026 4:00 AM
- Duration
- 8 hours
- Road
- A12 – A12 Northbound Between A120 Near Colchester (East) And B1029
- Category
- Road Maintenance
- Direction
- Northbound
- Carriageway
- Dual Carriageway
- Reason
- Roadworks
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- First published
- Tue, Mar 24, 2026 4:45 PM
- Last updated
- Mon, Apr 20, 2026 2:36 AM
- Cleared
- Mon, Apr 20, 2026 4:00 AM
- Latest update: A12 northbound Jct 29 to Jct 31 carriageway closure
- Coordinates
- 51.951093, 0.962124
- Latitude span
- 51.930958 – 51.972145
- Longitude span
- 0.944180 – 0.983915
- Bounding box centre
- 51.951552, 0.964048
- Location descriptions
-
- A12 northbound between A120 near Colchester (east) and B1029
- A12 northbound exit at a minor junction between A120 near Colchester (east) and B1029
- A12 northbound at a minor junction between A120 near Colchester (east) and B1029
- A12 northbound between B1029 and B1070
- A12 northbound access from B1029
- Feed validity status
- Planned
- Overall feed start
- Sun, Apr 19, 2026 8:00 PM
- Overall feed end
- Mon, Apr 20, 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
6 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 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 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
- Start2 End1
- Linear Element Road
- A12
- Linear Element Model
- The Network Model
- Linear Element Id
- {6F1E6B37-4FEE-4C71-A76E-FEA4184DB6AC}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 236 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.955327 0.96554 51.95582 0.96625 51.956723 0.967561 51.956861 0.967774 51.956905 0.967835
Segment 3
3 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 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 4
8 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 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 5
4 coordinate pairs- Description
- A12 northbound exit at a minor junction between A120 near Colchester (east) and B1029
- Carriageway
- Single Carriageway
- Lanes Restricted
- 1 lane 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
- {91AD82F6-E217-49EB-BF3A-7713C39BD355}
- Linear Element Type
- A Carriageway Exit Slip
- From Distance
- 0 m
- To Distance
- 64 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.952841 0.96162 51.95303 0.961714 51.953359 0.961852 51.953398 0.961867
Segment 6
2 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
- {B9E8D942-2C18-454B-8CD6-5405EA25E6FE}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 40 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.962286 0.972119 51.962644 0.972188
Segment 7
8 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 End1
- Linear Element Road
- A12
- Linear Element Model
- The Network Model
- Linear Element Id
- {30EF73A7-3EF7-41B4-95F5-0CCCAF8D152E}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 227 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.960272 0.97161 51.960299 0.971626 51.960459 0.971695 51.960655 0.971766 51.961012 0.971863 51.961549 0.971973 51.961844 0.972034 51.962286 0.972119
Segment 8
4 coordinate pairs- Description
- A12 northbound at a minor junction 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 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 9
13 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 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 10
2 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 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
- 386 m
- To Distance
- 404 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.951791 0.960965 51.95194 0.961074
Segment 11
2 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {86D69312-BCCB-4C2F-B0AB-1F33724932B8}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 94 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.971559 0.982912 51.972145 0.983915
Segment 12
13 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 End1
- Linear Element Road
- A12
- Linear Element Model
- The Network Model
- Linear Element Id
- {BE224BD1-D66B-4EEA-8A08-86EC0E706403}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 460 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.956905 0.967835 51.957087 0.96808 51.958015 0.969437 51.958563 0.970201 51.958624 0.970273 51.958825 0.97051 51.959044 0.970743 51.959334 0.971009 51.959651 0.971263 51.959713 0.971296 51.960006 0.971476 51.96013 0.971542 51.960272 0.97161
Segment 13
18 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
- {0710D061-799A-481F-B930-D3EFEE8BA2A7}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 1,011 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.962644 0.972188 51.963115 0.972279 51.963652 0.972401 51.963946 0.972494 51.964044 0.972535 51.964231 0.972614 51.96432 0.972649 51.96463 0.97283 51.964957 0.973056 51.965204 0.973247 51.965459 0.973467 51.965766 0.973794 51.965906 0.973963 51.966236 0.974407 51.966375 0.974606 51.96686 0.975366 51.969095 0.978978 51.969907 0.980297
Segment 14
2 coordinate pairs- Description
- A12 northbound at a minor junction between A120 near Colchester (east) and B1029
- Carriageway
- Single Carriageway
- Lanes Restricted
- 1 lane 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
- {025711A5-2D58-488C-A235-96B45B53CCFA}
- Linear Element Type
- Other
- From Distance
- 0 m
- To Distance
- 21 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.939947 0.952766 51.940118 0.9529
Segment 15
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
- {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 16
13 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 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 17
6 coordinate pairs- Description
- A12 northbound exit at a minor junction between A120 near Colchester (east) and B1029
- Lanes Restricted
- 1 lane 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
- {0B2E330C-B788-4CCC-8299-0BB8391C12D3}
- Linear Element Type
- A Carriageway Exit Slip
- From Distance
- 0 m
- To Distance
- 107 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.95194 0.961074 51.952001 0.961122 51.952134 0.961218 51.952293 0.961316 51.952692 0.961546 51.952841 0.96162
Segment 18
10 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 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 19
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 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
- 287 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.95339 0.962771 51.953434 0.962817 51.954293 0.964053 51.955327 0.96554
Segment 20
4 coordinate pairs- Description
- A12 northbound exit at a minor junction between A120 near Colchester (east) and B1029
- Lanes Restricted
- 1 lane 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
- {F56A2B0F-8184-4F28-8C1A-6AE5ECD8E069}
- Linear Element Type
- A Carriageway Exit Slip
- From Distance
- 0 m
- To Distance
- 63 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.939401 0.952488 51.939541 0.952522 51.939864 0.952724 51.939947 0.952766
Segment 21
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
- 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
- 219 m
- To Distance
- 314 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.930958 0.94418 51.931446 0.944477 51.931632 0.94459 51.93172 0.94463 51.931759 0.944631
Segment 22
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 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
- 144 m
- To Distance
- 282 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.938288 0.951597 51.938338 0.951637 51.938689 0.951943 51.939111 0.952266 51.939401 0.952488
Segment 23
9 coordinate pairs- Description
- A12 northbound access from B1029
- Lanes Restricted
- 1 lane 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
- {A8610D6C-3FFD-4544-A72C-AB43BF6A4BF4}
- Linear Element Type
- A Carriageway Entry Slip
- From Distance
- 4 m
- To Distance
- 78 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.971665 0.982015 51.971581 0.982129 51.97153 0.982198 51.971506 0.982231 51.971467 0.982302 51.971449 0.982371 51.971443 0.982421 51.971481 0.982629 51.971559 0.982912
- Geometry type
- MultiLineString
- Geometry points
- 151
- First coordinate pair
- 0.950666, 51.937123
- Road section segments
- 1
- Road section points
- 151
View geometry JSON
{
"type": "MultiLineString",
"coordinates": [
[
[
0.950666,
51.937123
],
[
0.950854,
51.937348
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51.938338
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[
0.951943,
51.938689
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[
0.952266,
51.939111
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0.952488,
51.939401
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51.955327
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51.95582
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51.956723
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0.967774,
51.956861
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51.956905
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51.931759
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0.944773,
51.931969
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[
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51.931983
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51.940835
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51.941827
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51.942462
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51.943114
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0.955777,
51.943547
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51.944164
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0.956812,
51.944906
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0.96162,
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51.95303
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0.961852,
51.953359
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0.961867,
51.953398
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0.972119,
51.962286
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51.960272
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0.971626,
51.960299
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[
0.971695,
51.960459
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51.960655
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[
0.971973,
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- Cause type
- Road Maintenance
- Detailed cause
- Roadworks
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Carriageway Closures
- Feed region label
- Colchester
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 1
- Record created
- Tue, Mar 24, 2026 4:45 PM
- Record versioned
- Mon, Apr 20, 2026 2:36 AM
- Coordinate source
- Geometry
Driving on the A12? See every live closure, roadwork and planned restriction on this road.
A12 live closuresRelated incidents
A120 eastbound Ardleigh to Bromley lane closure (MP 153/6 to 154/6)
Planned Roadworks National HighwaysStarts in 7 hours 50 minutes
A120 eastbound Ardleigh to Bromley lane closure (MP 153/6 to 154/6)
A12 northbound Jct 11 to Jct 12 lane 2 closure
Cleared Roadworks National HighwaysCleared 7 hours 9 minutes ago
A12 northbound Jct 11 to Jct 12 lane 2 closure
A12 northbound Jct 15 to Jct 19 carriageway closure
Cleared Roadworks National HighwaysCleared 7 hours 9 minutes ago
A12 northbound Jct 15 to Jct 19 carriageway closure
A12 northbound Ipswich Road exit slip carriageway closure
Cleared Roadworks National HighwaysCleared 1 day 7 hours ago
A12 northbound Ipswich Road exit slip carriageway closure
A12 northbound Jct 28 exit slip carriageway closure
Cleared Roadworks National HighwaysCleared 1 day 12 hours ago
A12 northbound Jct 28 exit slip carriageway closure
A12 northbound Jct 28 entry slip carriageway closure
Cleared Roadworks National HighwaysCleared 1 day 15 hours ago
A12 northbound Jct 28 entry slip carriageway closure