A12 northbound Dedham lane 1 closure (MP 170/6 to 171/8)
ClearedA12 northbound Dedham lane 1 closure (MP 170/6 to 171/8)
- Start time
- Thu, Jul 2, 2026 8:00 PM
- Expected end
- Fri, Jul 3, 2026 4:00 AM
- Duration
- 4 hours 1 second
- Road
- A12 – A12 Northbound Between A120 Near Colchester (East) And B1029
- Category
- Road Maintenance
- Direction
- Northbound
- Carriageway
- Dual Carriageway
- Lanes affected
- Lane 1 closed, 1 of 1 lanes affected
- Reason
- Maintenance Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details
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- First published
- Thu, Jul 2, 2026 7:45 PM
- Last updated
- Thu, Jul 2, 2026 11:31 PM
- Cleared
- Fri, Jul 3, 2026 12:00 AM
- Latest update: A12 northbound Dedham lane 1 closure (MP 170/6 to 171/8)
- Coordinates
- 51.958858, 0.969754
- Latitude span
- 51.953963 – 51.962555
- Longitude span
- 0.963579 – 0.972171
- Bounding box centre
- 51.958259, 0.967875
- Location descriptions
-
- A12 northbound between A120 near Colchester (east) and B1029
- Feed validity status
- Active
- Overall feed start
- Thu, Jul 2, 2026 8:00 PM
- Overall feed end
- Fri, Jul 3, 2026 4:00 AM
- Feed window length
- 8 hours
- Probability code (raw)
- certain
- 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
5 coordinate pairs- Description
- A12 northbound between A120 near Colchester (east) and B1029
- 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
- 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 2
3 coordinate pairs- Description
- A12 northbound between A120 near Colchester (east) and B1029
- 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
- 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
- 84 m
- To Distance
- 287 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.953963 0.963579 51.954293 0.964053 51.955327 0.96554
Segment 3
2 coordinate pairs- Description
- A12 northbound between A120 near Colchester (east) and B1029
- 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 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
- 30 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.962286 0.972119 51.962555 0.972171
Segment 4
8 coordinate pairs- Description
- A12 northbound between A120 near Colchester (east) and B1029
- 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
- {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 5
13 coordinate pairs- Description
- A12 northbound between A120 near Colchester (east) and B1029
- 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
- {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
- Geometry type
- MultiLineString
- Geometry points
- 31
- First coordinate pair
- 0.965540, 51.955327
- Road section segments
- 1
- Road section points
- 31
View geometry JSON
{
"type": "MultiLineString",
"coordinates": [
[
[
0.96554,
51.955327
],
[
0.96625,
51.95582
],
[
0.967561,
51.956723
],
[
0.967774,
51.956861
],
[
0.967835,
51.956905
],
[
0.963579,
51.953963
],
[
0.964053,
51.954293
],
[
0.96554,
51.955327
],
[
0.972119,
51.962286
],
[
0.972171,
51.962555
],
[
0.97161,
51.960272
],
[
0.971626,
51.960299
],
[
0.971695,
51.960459
],
[
0.971766,
51.960655
],
[
0.971863,
51.961012
],
[
0.971973,
51.961549
],
[
0.972034,
51.961844
],
[
0.972119,
51.962286
],
[
0.967835,
51.956905
],
[
0.96808,
51.957087
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[
0.969437,
51.958015
],
[
0.970201,
51.958563
],
[
0.970273,
51.958624
],
[
0.97051,
51.958825
],
[
0.970743,
51.959044
],
[
0.971009,
51.959334
],
[
0.971263,
51.959651
],
[
0.971296,
51.959713
],
[
0.971476,
51.960006
],
[
0.971542,
51.96013
],
[
0.97161,
51.960272
]
]
]
}
View road section coordinates
[
[
[
0.96554,
51.955327
],
[
0.96625,
51.95582
],
[
0.967561,
51.956723
],
[
0.967774,
51.956861
],
[
0.967835,
51.956905
],
[
0.963579,
51.953963
],
[
0.964053,
51.954293
],
[
0.96554,
51.955327
],
[
0.972119,
51.962286
],
[
0.972171,
51.962555
],
[
0.97161,
51.960272
],
[
0.971626,
51.960299
],
[
0.971695,
51.960459
],
[
0.971766,
51.960655
],
[
0.971863,
51.961012
],
[
0.971973,
51.961549
],
[
0.972034,
51.961844
],
[
0.972119,
51.962286
],
[
0.967835,
51.956905
],
[
0.96808,
51.957087
],
[
0.969437,
51.958015
],
[
0.970201,
51.958563
],
[
0.970273,
51.958624
],
[
0.97051,
51.958825
],
[
0.970743,
51.959044
],
[
0.971009,
51.959334
],
[
0.971263,
51.959651
],
[
0.971296,
51.959713
],
[
0.971476,
51.960006
],
[
0.971542,
51.96013
],
[
0.97161,
51.960272
]
]
]
- Cause type
- Road Maintenance
- Detailed cause
- Maintenance Work
- Compliance
- Mandatory
- Probability
- Certain
- Validity status
- Active
- Road management
- Other
- Feed region label
- Colchester
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 1
- Record created
- Thu, Jul 2, 2026 7:45 PM
- Record versioned
- Thu, Jul 2, 2026 11:31 PM
- Coordinate source
- Geometry
Driving on the A12? See every live closure, roadwork and planned restriction on this road.
A12 live closuresRelated incidents
A12 northbound Jct 22 to Jct 23 lane 2 closure (MP 140/9 to 145/3)
Planned Roadworks National Highways
Maldon
A12 · A12 Northbound Between B1389 Near Witham (North) And B1024 Near Kelvedon (South)
Starts in 6 hours
Starts 7 Jul 2026, 20:00
Expected clear 8 Jul 2026, 04:00
A12 northbound Jct 22 to Jct 23 lane 2 closure (MP 140/9 to 145/3)
Category: Road Maintenance
View update
A12 northbound Jct 23 to Jct 24 lane 2 closure (MP 143/4 to 149/2)
Cleared Roadworks National Highways
Braintree
A12 · A12 Northbound Between B1024 Near Kelvedon (South) And B1024 Near Kelvedon (North)
Cleared 9 hours 59 minutes ago
Started 6 Jul 2026, 20:00
Ended 7 Jul 2026, 04:00
A12 northbound Jct 23 to Jct 24 lane 2 closure (MP 143/4 to 149/2)
Category: Road Maintenance
View update
A12 southbound Jct 19 to Jct 15 carriageway closure
Cleared Roadworks National Highways
Chelmsford
A12 · A12 Southbound Between A138/A130 And A414 Near Chelmsford (East)
Cleared 1 day 9 hours ago
Started 5 Jul 2026, 20:00
Ended 6 Jul 2026, 04:00
A12 southbound Jct 19 to Jct 15 carriageway closure
Category: Road Maintenance
View update
A12 southbound Ipswich Road entry slip road closure
Cleared Roadworks National Highways
Colchester
A12 · A12 Southbound Access At A Minor Junction Between B1029 And A120 Near Colchester (East)
Cleared 3 days 14 hours ago
Started 3 Jul 2026, 21:00
Ended 3 Jul 2026, 23:35
A12 southbound Ipswich Road entry slip road closure
Category: Road Maintenance
View update
A12 northbound Jct 11 to Jct 12 lane 2 closure (MP 102/2 to 103/0)
Cleared Roadworks National Highways
Havering
A12 · A12 Northbound Between M25 And A1023
Cleared 3 days 9 hours ago
Started 3 Jul 2026, 20:00
Ended 4 Jul 2026, 04:00
A12 northbound Jct 11 to Jct 12 lane 2 closure (MP 102/2 to 103/0)
Category: Road Maintenance
View update
A12 northbound Jct 23 to Jct 25 lane 2 closure (MP 147/0 to 153/2)
Cleared Roadworks National Highways
Colchester
A12 · A12 Northbound Between B1024 Near Kelvedon (North) And A120 Near Colchester (West)
Cleared 3 days 10 hours ago
Started 3 Jul 2026, 20:00
Ended 4 Jul 2026, 03:50
A12 northbound Jct 23 to Jct 25 lane 2 closure (MP 147/0 to 153/2)
Category: Road Maintenance
View update