Crash View

A1 northbound Dedham lane 1 closure (MP 171/1 to 173/5)

Cleared

A1 northbound Dedham lane 1 closure (MP 171/1 to 173/5)

Start time
Tue, Dec 16, 2025 9:00 PM
Expected end
Wed, Dec 17, 2025 5:00 AM
Duration
8 hours
Road
A12 – A12 Northbound Between B1029 And B1070
Category
Road Maintenance
Direction
Northbound
Carriageway
Dual Carriageway
Lanes affected
Lane 1 closed, 1 of 1 lanes affected
Reason
Tree And Vegetation Cutting Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment
Planning history
EPC ratings & more
Get a property report
First published
Tue, Dec 16, 2025 12:32 AM
Last updated
Tue, Dec 16, 2025 3:33 PM
Cleared
Wed, Dec 17, 2025 5:00 AM
  • Latest update: A1 northbound Dedham lane 1 closure (MP 171/1 to 173/5)
Coordinates
51.968045, 0.978208
Latitude span
51.961752 – 51.974643
Longitude span
0.972015 – 0.987158
Bounding box centre
51.968198, 0.979587
Location descriptions
  • A12 northbound between B1029 and B1070
  • A12 northbound between A120 near Colchester (east) and B1029
  • A12 northbound within the B1029 junction
Feed validity status
Planned
Overall feed start
Tue, Dec 16, 2025 9:00 PM
Overall feed end
Wed, Dec 17, 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

7 coordinate pairs
Description
A12 northbound between B1029 and B1070
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
{753ED095-0D8D-4A47-9FD1-AB56F0201AE8}
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 
51.972363 0.984278
51.972847 0.985053
51.972977 0.985251
51.97336 0.985742
51.973464 0.98588
51.973849 0.986314
51.974375 0.986873

Segment 2

19 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
{0710D061-799A-481F-B930-D3EFEE8BA2A7}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
1,175 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
51.969924 0.980324
51.97097 0.98195

Segment 3

2 coordinate pairs
Description
A12 northbound between B1029 and B1070
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
{630EE45C-C43F-47D2-89B6-AFE59860FCB3}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
35 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.974375 0.986873
51.974643 0.987158

Segment 4

3 coordinate pairs
Description
A12 northbound between B1029 and B1070
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
{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 5

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
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
167 m
To Distance
227 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.961752 0.972015
51.961844 0.972034
51.962286 0.972119

Segment 6

4 coordinate pairs
Description
A12 northbound within the B1029 junction
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
{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 7

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
40 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.962286 0.972119
51.962644 0.972188
Geometry type
MultiLineString
Geometry points
40
First coordinate pair
0.984278, 51.972363
Road section segments
1
Road section points
40
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                0.984278,
                51.972363
            ],
            [
                0.985053,
                51.972847
            ],
            [
                0.985251,
                51.972977
            ],
            [
                0.985742,
                51.97336
            ],
            [
                0.98588,
                51.973464
            ],
            [
                0.986314,
                51.973849
            ],
            [
                0.986873,
                51.974375
            ],
            [
                0.972188,
                51.962644
            ],
            [
                0.972279,
                51.963115
            ],
            [
                0.972401,
                51.963652
            ],
            [
                0.972494,
                51.963946
            ],
            [
                0.972535,
                51.964044
            ],
            [
                0.972614,
                51.964231
            ],
            [
                0.972649,
                51.96432
            ],
            [
                0.97283,
                51.96463
            ],
            [
                0.973056,
                51.964957
            ],
            [
                0.973247,
                51.965204
            ],
            [
                0.973467,
                51.965459
            ],
            [
                0.973794,
                51.965766
            ],
            [
                0.973963,
                51.965906
            ],
            [
                0.974407,
                51.966236
            ],
            [
                0.974606,
                51.966375
            ],
            [
                0.975366,
                51.96686
            ],
            [
                0.978978,
                51.969095
            ],
            [
                0.980324,
                51.969924
            ],
            [
                0.98195,
                51.97097
            ],
            [
                0.986873,
                51.974375
            ],
            [
                0.987158,
                51.974643
            ],
            [
                0.982912,
                51.971559
            ],
            [
                0.984081,
                51.972242
            ],
            [
                0.984278,
                51.972363
            ],
            [
                0.972015,
                51.961752
            ],
            [
                0.972034,
                51.961844
            ],
            [
                0.972119,
                51.962286
            ],
            [
                0.98195,
                51.97097
            ],
            [
                0.982368,
                51.971233
            ],
            [
                0.982763,
                51.971475
            ],
            [
                0.982912,
                51.971559
            ],
            [
                0.972119,
                51.962286
            ],
            [
                0.972188,
                51.962644
            ]
        ]
    ]
}
View road section coordinates 
[
    [
        [
            0.984278,
            51.972363
        ],
        [
            0.985053,
            51.972847
        ],
        [
            0.985251,
            51.972977
        ],
        [
            0.985742,
            51.97336
        ],
        [
            0.98588,
            51.973464
        ],
        [
            0.986314,
            51.973849
        ],
        [
            0.986873,
            51.974375
        ],
        [
            0.972188,
            51.962644
        ],
        [
            0.972279,
            51.963115
        ],
        [
            0.972401,
            51.963652
        ],
        [
            0.972494,
            51.963946
        ],
        [
            0.972535,
            51.964044
        ],
        [
            0.972614,
            51.964231
        ],
        [
            0.972649,
            51.96432
        ],
        [
            0.97283,
            51.96463
        ],
        [
            0.973056,
            51.964957
        ],
        [
            0.973247,
            51.965204
        ],
        [
            0.973467,
            51.965459
        ],
        [
            0.973794,
            51.965766
        ],
        [
            0.973963,
            51.965906
        ],
        [
            0.974407,
            51.966236
        ],
        [
            0.974606,
            51.966375
        ],
        [
            0.975366,
            51.96686
        ],
        [
            0.978978,
            51.969095
        ],
        [
            0.980324,
            51.969924
        ],
        [
            0.98195,
            51.97097
        ],
        [
            0.986873,
            51.974375
        ],
        [
            0.987158,
            51.974643
        ],
        [
            0.982912,
            51.971559
        ],
        [
            0.984081,
            51.972242
        ],
        [
            0.984278,
            51.972363
        ],
        [
            0.972015,
            51.961752
        ],
        [
            0.972034,
            51.961844
        ],
        [
            0.972119,
            51.962286
        ],
        [
            0.98195,
            51.97097
        ],
        [
            0.982368,
            51.971233
        ],
        [
            0.982763,
            51.971475
        ],
        [
            0.982912,
            51.971559
        ],
        [
            0.972119,
            51.962286
        ],
        [
            0.972188,
            51.962644
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Tree And Vegetation Cutting 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, Dec 16, 2025 12:32 AM
Record versioned
Tue, Dec 16, 2025 3:33 PM
Coordinate source
Geometry

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

A12 live closures

Related incidents

A12 northbound Jct 15 to Jct 19 carriageway closure

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

Starts in 18 hours 59 minutes

Starts 15 Jun 2026, 20:00 Expected clear 16 Jun 2026, 04:00

A12 northbound Jct 15 to Jct 19 carriageway closure

Category: Road Maintenance
View update

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

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

Cleared 35 minutes 28 seconds ago

Started 14 Jun 2026, 19:00 Ended 15 Jun 2026, 00:25

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 21 hours 30 seconds 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 21 hours 30 seconds 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 21 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 2 days 2 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