Crash View

A12 northbound Jct 21 lane 1 closure (MP 137/1 to 141/5)

Planned

A12 northbound Jct 21 lane 1 closure (MP 137/1 to 141/5)

Start time
Thu, Jan 15, 2026 9:00 PM
Expected end
Fri, Jan 16, 2026 5:00 AM
Duration
8 hours
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
Roadworks
Active
Planned
Cleared
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First published
Tue, Jan 6, 2026 1:55 PM
Last updated
Wed, Jan 14, 2026 11:21 PM
Cleared
Fri, Jan 16, 2026 5:00 AM
  • Latest update: A12 northbound Jct 21 lane 1 closure (MP 137/1 to 141/5)
Coordinates
51.796198, 0.646589
Latitude span
51.785647 – 51.811995
Longitude span
0.628054 – 0.656314
Bounding box centre
51.798821, 0.642184
Location descriptions
  • A12 northbound between B1389 near Witham (south) and B1389 near Witham (north)
  • A12 northbound between B1389 near Witham (north) and B1024 near Kelvedon (south)
  • A12 northbound within the B1389 near Witham (north) junction
Feed validity status
Planned
Overall feed start
Thu, Jan 15, 2026 9:00 PM
Overall feed end
Fri, Jan 16, 2026 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

2 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
520 m
To Distance
645 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.785647 0.628054
51.785823 0.629847

Segment 2

11 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
{16A03B90-7C06-40FB-82EF-C5D7BFD711FD}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
839 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.800688 0.652088
51.802263 0.652304
51.802316 0.652311
51.803715 0.652512
51.803949 0.65254
51.806257 0.652848
51.806609 0.652893
51.807431 0.652988
51.807769 0.653035
51.808131 0.653114
51.8082 0.653134

Segment 3

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
{6B4AF0EB-58D4-4261-A046-AE8071B0BCFA}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
9 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.8082 0.653134
51.808279 0.653158
51.808287 0.653159

Segment 4

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
{9BF084C6-FB9B-48E3-844A-247F89D53453}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
171 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.799155 0.651878
51.799227 0.651888
51.800688 0.652088

Segment 5

16 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
Start2 End1
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{5B19D5D6-21F7-4EBF-BE5B-8319F156DAA7}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
765 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.792471 0.649767
51.792611 0.649882
51.792701 0.649959
51.792915 0.650145
51.793418 0.650526
51.793667 0.650669
51.794181 0.650954
51.794467 0.651072
51.794747 0.651174
51.794822 0.651208
51.795041 0.651268
51.795209 0.651311
51.795253 0.651315
51.795456 0.651376
51.795949 0.651443
51.799155 0.651878

Segment 6

5 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
{B71781D6-0F26-451D-8CAC-1422E431B6BA}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
171 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.785823 0.629847
51.785823 0.629849
51.785823 0.629852
51.785899 0.631454
51.785945 0.632321

Segment 7

9 coordinate pairs
Description
A12 northbound between B1389 near Witham (north) and B1024 near Kelvedon (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
{267F05C2-1762-4BA2-9F69-133D34BABB12}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
231 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.810343 0.654306
51.810579 0.654525
51.810774 0.654722
51.810975 0.654922
51.81117 0.655154
51.811274 0.655275
51.811711 0.65588
51.811921 0.656193
51.811995 0.656314

Segment 8

16 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
Start2 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{4F8C5543-B7C8-4439-B15C-366D5EB76DA3}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
660 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.788473 0.642804
51.788679 0.643251
51.788876 0.643683
51.789365 0.644756
51.789527 0.645114
51.790037 0.646161
51.790358 0.646811
51.790534 0.647162
51.790778 0.647588
51.791018 0.648014
51.791331 0.648468
51.79148 0.648665
51.791795 0.649046
51.791961 0.649244
51.79233 0.649643
51.792471 0.649767

Segment 9

9 coordinate pairs
Description
A12 northbound within the B1389 near Witham (north) 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
{608D8003-85FB-4304-A139-B83D407BF847}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
242 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.808287 0.653159
51.808681 0.65332
51.808984 0.653448
51.809277 0.653582
51.809462 0.65368
51.809648 0.653797
51.809825 0.65391
51.81001 0.654049
51.810343 0.654306

Segment 10

22 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 End2
Linear Element Road
A12
Linear Element Model
The Network Model
Linear Element Id
{DFD2A102-8E2B-456D-8E38-B0EAE8EC58E6}
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 
51.785945 0.632321
51.785947 0.632345
51.785989 0.633683
51.785994 0.633843
51.786018 0.634381
51.786104 0.635386
51.786134 0.63562
51.786229 0.636206
51.78626 0.636425
51.786397 0.637158
51.786438 0.637334
51.78651 0.63773
51.786559 0.637936
51.786659 0.638275
51.786668 0.638303
51.786835 0.638866
51.787063 0.639531
51.787139 0.639739
51.787335 0.640214
51.787814 0.641301
51.788199 0.642179
51.788473 0.642804
Geometry type
MultiLineString
Geometry points
96
First coordinate pair
0.628054, 51.785647
Road section segments
1
Road section points
96
View geometry JSON 
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View road section coordinates 
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]
Cause type
Road Maintenance
Detailed cause
Roadworks
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
Tue, Jan 6, 2026 1:55 PM
Record versioned
Wed, Jan 14, 2026 11:21 PM
Coordinate source
Geometry

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