Crash View

A12 northbound Jct 21 lane 1 closure (MP 135/3 to 137/5)

Cleared

A12 northbound Jct 21 lane 1 closure (MP 135/3 to 137/5)

Start time
Tue, Jul 28, 2026 8:00 PM
Expected end
Wed, Jul 29, 2026 4:00 AM
Duration
1 hour 50 minutes 2 seconds
Road
A12 – A12 Northbound Between B1389 Near Witham (South) And B1389 Near Witham (North)
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
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First published
Thu, Jun 11, 2026 1:09 PM
Last updated
Tue, Jul 28, 2026 9:09 PM
Cleared
Tue, Jul 28, 2026 9:50 PM
  • Latest update: A12 northbound Jct 21 lane 1 closure (MP 135/3 to 137/5)
Coordinates
51.781442, 0.609974
Latitude span
51.776816 – 51.785087
Longitude span
0.593564 – 0.622165
Bounding box centre
51.780952, 0.607865
Location descriptions
  • A12 northbound between B1389 near Witham (south) and B1389 near Witham (north)
  • A12 northbound within the B1137 junction
  • A12 northbound between B1137 and B1389 near Witham (south)
  • A12 northbound within the B1389 near Witham (south) junction
Feed validity status
Planned
Overall feed start
Tue, Jul 28, 2026 8:00 PM
Overall feed end
Wed, Jul 29, 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

3 coordinate pairs
Description
A12 northbound between B1389 near Witham (south) and B1389 near Witham (north)
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
{80A2F75D-3591-4406-8706-FADF3B0E21CA}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
109 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.784923 0.620599
51.785057 0.621854
51.785087 0.622165

Segment 2

2 coordinate pairs
Description
A12 northbound within the B1137 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
{C0CD02CD-8BEA-4E6C-9391-702A4E5B0F0C}
Linear Element Type
A Carriageway
From Distance
307 m
To Distance
338 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.776816 0.593564
51.77693 0.593978

Segment 3

7 coordinate pairs
Description
A12 northbound within the B1137 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
{1F25CF15-B1E6-4F3D-93D0-5261800CD245}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
326 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.778239 0.599624
51.77828 0.59983
51.778375 0.600401
51.778638 0.602359
51.77875 0.602974
51.778807 0.603238
51.779045 0.604168

Segment 4

14 coordinate pairs
Description
A12 northbound between B1137 and B1389 near Witham (south)
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
{87228FE9-B9C4-45C0-B1D4-364DB9726EE4}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
794 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.779045 0.604168
51.779222 0.604799
51.779626 0.60604
51.780285 0.607977
51.780309 0.60808
51.780352 0.608199
51.78047 0.608554
51.781203 0.610771
51.781271 0.610963
51.781568 0.611763
51.781789 0.612327
51.782107 0.612998
51.782288 0.613356
51.782677 0.614031

Segment 5

6 coordinate pairs
Description
A12 northbound within the B1137 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
{DE98F077-C0DF-45E3-9965-ED55E94E67E3}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
416 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.77693 0.593978
51.777229 0.595184
51.777553 0.596482
51.777938 0.598186
51.778175 0.599302
51.778239 0.599624

Segment 6

7 coordinate pairs
Description
A12 northbound within the B1389 near Witham (south) 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
{AC8E23F4-D6C8-4BCC-9A30-BB0F31AA7618}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
222 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.78428 0.617556
51.784305 0.617678
51.784595 0.618768
51.784773 0.619663
51.784886 0.620264
51.784909 0.620454
51.784923 0.620599

Segment 7

12 coordinate pairs
Description
A12 northbound within the B1389 near Witham (south) 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
{4337DA7C-1397-4AD5-9D4B-A084C6C7CD4A}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
302 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.782677 0.614031
51.782772 0.614211
51.783074 0.614808
51.783393 0.615407
51.783557 0.615706
51.78372 0.616078
51.78384 0.616361
51.783951 0.616628
51.784044 0.616894
51.784146 0.617161
51.784194 0.617304
51.78428 0.617556
Geometry type
MultiLineString
Geometry points
51
First coordinate pair
0.620599, 51.784923
Road section segments
1
Road section points
51
View geometry JSON 
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                0.620599,
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            ],
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                0.621854,
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            ],
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                0.593564,
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            ],
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                0.593978,
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            ],
            [
                0.599624,
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            ],
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                0.59983,
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            ],
            [
                0.600401,
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            ],
            [
                0.602359,
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            ],
            [
                0.602974,
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            ],
            [
                0.603238,
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            ],
            [
                0.604168,
                51.779045
            ],
            [
                0.604168,
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            ],
            [
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            ],
            [
                0.60604,
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            ],
            [
                0.607977,
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            ],
            [
                0.60808,
                51.780309
            ],
            [
                0.608199,
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            ],
            [
                0.608554,
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            ],
            [
                0.610771,
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            ],
            [
                0.610963,
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            ],
            [
                0.611763,
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            ],
            [
                0.612327,
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            ],
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            ],
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            ],
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            ],
            [
                0.599302,
                51.778175
            ],
            [
                0.599624,
                51.778239
            ],
            [
                0.617556,
                51.78428
            ],
            [
                0.617678,
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            ],
            [
                0.618768,
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            ],
            [
                0.619663,
                51.784773
            ],
            [
                0.620264,
                51.784886
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            [
                0.620454,
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            ],
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            ],
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            ],
            [
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            ],
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            ],
            [
                0.617304,
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            ],
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            ]
        ]
    ]
}
View road section coordinates 
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    [
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            0.620599,
            51.784923
        ],
        [
            0.621854,
            51.785057
        ],
        [
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        ],
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        ],
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        ],
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        [
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        ],
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        ],
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        ],
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            51.778807
        ],
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            0.604168,
            51.779045
        ],
        [
            0.604168,
            51.779045
        ],
        [
            0.604799,
            51.779222
        ],
        [
            0.60604,
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        ],
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            0.607977,
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ],
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        ]
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]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed region label
Witham
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Thu, Jun 11, 2026 1:09 PM
Record versioned
Tue, Jul 28, 2026 9:09 PM
Coordinate source
Geometry

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