A12 northbound Jct 29 to Jct 31 lane 2 closure (MP 172/5 to 176/5)
ClearedA12 northbound Jct 29 to Jct 31 lane 2 closure (MP 172/5 to 176/5)
- Start time
- Thu, Aug 20, 2026 8:00 PM
- Expected end
- Fri, Aug 21, 2026 4:00 AM
- Duration
- 30 minutes 1 second
- Road
- A12 – A12 Northbound Between B1070 And A14
- Category
- Construction Work
- Direction
- Northbound
- Carriageway
- Dual Carriageway
- Lanes affected
- Lane 2 closed, 1 of 1 lanes affected
- Reason
- Road Improvement Or Upgrading
Live incident
Active roadworks
Planned
Cleared
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- First published
- Thu, Jul 30, 2026 9:41 AM
- Last updated
- Thu, Aug 20, 2026 8:01 PM
- Cleared
- Thu, Aug 20, 2026 8:30 PM
- Latest update: A12 northbound Jct 29 to Jct 31 lane 2 closure (MP 172/5 to 176/5)
- Coordinates
- 51.980957, 0.997544
- Latitude span
- 51.966729 – 51.989587
- Longitude span
- 0.975160 – 1.019407
- Bounding box centre
- 51.978158, 0.997284
- Location descriptions
-
- A12 northbound between B1070 and A14
- A12 northbound within the B1029 junction
- A12 northbound between B1029 and B1070
- A12 northbound within the B1070 junction
- A12 northbound between A120 near Colchester (east) and B1029
- Feed validity status
- Planned
- Overall feed start
- Thu, Aug 20, 2026 8:00 PM
- Overall feed end
- Fri, Aug 21, 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
14 coordinate pairs- Description
- A12 northbound between B1070 and A14
- 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
- {D379070F-796C-4161-8815-31DC248A9CAA}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 466 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.987413 1.009241 51.987436 1.009359 51.987472 1.009653 51.987533 1.010152 51.987609 1.010711 51.987708 1.011388 51.987754 1.011697 51.987825 1.012095 51.98787 1.012302 51.987938 1.012612 51.988144 1.01334 51.988349 1.014111 51.98853 1.014793 51.988748 1.015648
Segment 2
4 coordinate pairs- Description
- A12 northbound within the B1029 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
- {C12D03F2-B694-47E7-BFCC-F52D197C2D59}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 93 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.97097 0.98195 51.971233 0.982368 51.971475 0.982763 51.971559 0.982912
Segment 3
9 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {6B7A63AE-99AD-490F-8D30-503870DE4769}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 329 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.982815 1.000485 51.983058 1.000865 51.983847 1.001836 51.983947 1.001959 51.984166 1.002207 51.984881 1.003085 51.984994 1.003223 51.985005 1.003239 51.98515 1.003438
Segment 4
7 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {753ED095-0D8D-4A47-9FD1-AB56F0201AE8}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 271 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.972363 0.984278 51.972847 0.985053 51.972977 0.985251 51.97336 0.985742 51.973464 0.98588 51.973849 0.986314 51.974254 0.986745
Segment 5
11 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {EF937B71-B40F-448B-A06E-B0856AD4A128}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 338 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.98515 1.003438 51.985342 1.003684 51.98554 1.004032 51.985678 1.00426 51.985798 1.004501 51.985926 1.004757 51.985986 1.004892 51.986155 1.005304 51.986257 1.005551 51.986416 1.005999 51.98692 1.007402
Segment 6
3 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {7F21F1AE-AC75-40AB-AEA1-C260569D3FB1}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 45 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.982521 1.000028 51.982781 1.000439 51.982815 1.000485
Segment 7
4 coordinate pairs- Description
- A12 northbound between B1070 and A14
- 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
- {B88CD35A-A90F-433B-91B2-BDB7826AA481}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 274 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.988748 1.015648 51.988832 1.015979 51.989219 1.017709 51.989587 1.019407
Segment 8
3 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {599EA0BA-1958-46CD-AEF4-8BE59E51F792}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 26 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.975488 0.98801 51.975532 0.988042 51.975701 0.988186
Segment 9
2 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {753ED095-0D8D-4A47-9FD1-AB56F0201AE8}
- Linear Element Type
- A Carriageway
- From Distance
- 271 m
- To Distance
- 287 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.974254 0.986745 51.974375 0.986873
Segment 10
25 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {EC49CB83-AB88-4C2B-ABF9-763D94A92069}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 814 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.978428 0.990743 51.979098 0.991396 51.979668 0.991988 51.979835 0.992159 51.980035 0.992405 51.980131 0.992528 51.980235 0.992681 51.980312 0.992817 51.980415 0.993013 51.980484 0.993149 51.980569 0.993344 51.980695 0.993673 51.980853 0.994178 51.980951 0.994593 51.981162 0.99583 51.981287 0.996567 51.981383 0.997039 51.981432 0.997247 51.981497 0.997528 51.981746 0.998345 51.981838 0.998614 51.981968 0.998924 51.982075 0.999168 51.982418 0.999861 51.982521 1.000028
Segment 11
3 coordinate pairs- Description
- A12 northbound within the B1070 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
- {DBB7F057-5481-4047-9376-C646DD1CEC97}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 44 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.987284 1.008621 51.987349 1.008931 51.987413 1.009241
Segment 12
4 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {23D4607E-425E-41ED-A32C-0E82892EA9CC}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 93 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.98692 1.007402 51.986996 1.007596 51.987219 1.008354 51.987284 1.008621
Segment 13
8 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {599EA0BA-1958-46CD-AEF4-8BE59E51F792}
- Linear Element Type
- A Carriageway
- From Distance
- 26 m
- To Distance
- 377 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.975701 0.988186 51.975919 0.988374 51.976272 0.988674 51.976545 0.988896 51.976931 0.989257 51.977484 0.989803 51.978335 0.990661 51.978428 0.990743
Segment 14
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
- 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
- 511 m
- To Distance
- 1,175 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.966729 0.97516 51.96686 0.975366 51.969095 0.978978 51.969924 0.980324 51.97097 0.98195
Segment 15
3 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {86D69312-BCCB-4C2F-B0AB-1F33724932B8}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 129 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.971559 0.982912 51.972242 0.984081 51.972363 0.984278
Segment 16
3 coordinate pairs- Description
- A12 northbound between B1029 and B1070
- 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
- {630EE45C-C43F-47D2-89B6-AFE59860FCB3}
- Linear Element Type
- A Carriageway
- From Distance
- 0 m
- To Distance
- 146 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.974375 0.986873 51.975031 0.987572 51.975488 0.98801
- Geometry type
- MultiLineString
- Geometry points
- 108
- First coordinate pair
- 1.009241, 51.987413
- Road section segments
- 1
- Road section points
- 108
View geometry JSON
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}
View road section coordinates
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- Cause type
- Construction Work
- Detailed cause
- Road Improvement Or Upgrading
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Other
- Feed region label
- Colchester
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 1
- Record created
- Thu, Jul 30, 2026 9:41 AM
- Record versioned
- Thu, Aug 20, 2026 8:01 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 11 to Jct 12 lane 2 closure (MP 106/0 to 106/6)
Planned Roadworks National Highways
Brentwood
A12 · A12 Northbound Between M25 And A1023
Expected to clear in 6 hours 49 minutes
Started 20 Aug 2026, 20:00
Expected clear 21 Aug 2026, 04:00
A12 northbound Jct 11 to Jct 12 lane 2 closure (MP 106/0 to 106/6)
Category: Road Maintenance
View update
A120 eastbound A120 Exit Slip to Harwich Road lane 1 closure
Active Roadworks National Highways
Colchester
A120 · A120 Eastbound Between A12 Near Colchester (East) And A133
Expected to clear in 7 hours 49 minutes
Started 20 Aug 2026, 19:52
Expected clear 21 Aug 2026, 05:00
A120 eastbound A120 Exit Slip to Harwich Road lane 1 closure
Category: Road Maintenance
View update
A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)
Active Roadworks National Highways
Brentwood
A12 · A12 Northbound Between A1023 And B1002
Expected to clear in 6 hours 49 minutes
Started 20 Aug 2026, 19:50
Expected clear 21 Aug 2026, 04:00
A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)
Category: Road Maintenance
View update
A120 eastbound A120 Exit Slip to Harwich Road lane 1 closure
Cleared Roadworks National Highways
Colchester
A120 · A120 Eastbound Between A12 Near Colchester (East) And A133
Cleared 10 minutes 21 seconds ago
Started 20 Aug 2026, 21:00
Ended 20 Aug 2026, 21:00
A120 eastbound A120 Exit Slip to Harwich Road lane 1 closure
Category: Road Maintenance
View update
A12 northbound Jct 17 to Jct 19 lane 1 closure (MP 124/4 to 125/4)
Cleared Roadworks National Highways
Chelmsford
A12 · A12 Northbound Between A1114/A130 And A414 Near Chelmsford (East)
Cleared 1 hour 10 minutes ago
Started 20 Aug 2026, 20:00
Ended 20 Aug 2026, 20:00
A12 northbound Jct 17 to Jct 19 lane 1 closure (MP 124/4 to 125/4)
Category: Road Maintenance
View update
A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)
Cleared Roadworks National Highways
Brentwood
A12 · A12 Northbound Between A1023 And B1002
Cleared 1 hour 5 minutes ago
Started 20 Aug 2026, 20:00
Ended 20 Aug 2026, 20:05
A12 northbound Jct 12 to Jct 13 lane 1 closure (MP 109/1 to 110/5)
Category: Road Maintenance
View update