Crash View

A12 northbound Dedham lane 1 closure (MP 170/6 to 171/8)

Cleared

A12 northbound Dedham lane 1 closure (MP 170/6 to 171/8)

Start time
Wed, Jul 1, 2026 8:01 PM
Expected end
Thu, Jul 2, 2026 4:00 AM
Duration
3 hours 59 minutes 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
Wed, Jul 1, 2026 8:01 PM
Last updated
Wed, Jul 1, 2026 11:54 PM
Cleared
Thu, Jul 2, 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
Wed, Jul 1, 2026 8:01 PM
Overall feed end
Thu, Jul 2, 2026 4:00 AM
Feed window length
7 hours 59 minutes
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
            ],
            [
                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
Wed, Jul 1, 2026 8:01 PM
Record versioned
Wed, Jul 1, 2026 11:54 PM
Coordinate source
Geometry

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