Crash View

A421 eastbound Renhold to Black Cat Roundabout carriageway closure

Cleared

A421 eastbound Renhold to Black Cat Roundabout carriageway closure

Start time
Mon, Jan 19, 2026 8:00 PM
Expected end
Tue, Jan 20, 2026 6:00 AM
Duration
10 hours
Road
A421 – A421 Northbound Within The A4280 Junction
Category
Road Maintenance
Direction
Eastbound
Carriageway
Dual Carriageway
Reason
Road Marking Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

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First published
Tue, Jan 6, 2026 12:52 PM
Last updated
Mon, Jan 19, 2026 1:43 PM
Cleared
Tue, Jan 20, 2026 6:00 AM
  • Latest update: A421 eastbound Renhold to Black Cat Roundabout carriageway closure
Coordinates
52.165741, -0.355649
Latitude span
52.147847 – 52.184942
Longitude span
-0.393757 – -0.306116
Bounding box centre
52.166395, -0.349937
Location descriptions
  • A421 northbound within the A4280 junction
  • A421 northbound between A4280 and A1
  • A421 northbound access from A4280
  • A421 northbound between A603 and A4280
Feed validity status
Planned
Overall feed start
Mon, Jan 19, 2026 8:00 PM
Overall feed end
Tue, Jan 20, 2026 6:00 AM
Feed window length
10 hours
Probability code (raw)
probable
Compliance option (raw)
mandatory
Source identification (raw)
roadworks
Management type value
carriagewayClosures (Carriageway Closures)
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
A421 northbound within the A4280 junction
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{573EF730-AAB7-4BDF-A782-30B49BF5BA97}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
421 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.151643 -0.385493
52.15197 -0.38488
52.152602 -0.38382
52.153278 -0.382732
52.154363 -0.381219

Segment 2

7 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{05A6519F-5185-4F43-A53A-3297F8DA93C8}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
680 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.163677 -0.37073
52.16403 -0.370116
52.164972 -0.368181
52.165521 -0.366943
52.165905 -0.365922
52.166418 -0.364441
52.167003 -0.362447

Segment 3

14 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{A0907D2B-FE9F-42CC-BB0A-F537783E843B}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
1,487 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.168574 -0.349233
52.168599 -0.348219
52.168654 -0.346754
52.16874 -0.345621
52.168897 -0.3441
52.169221 -0.341881
52.169441 -0.340638
52.169977 -0.338227
52.170274 -0.337112
52.170836 -0.335339
52.171406 -0.33375
52.171979 -0.332371
52.172779 -0.330668
52.173428 -0.329495

Segment 4

8 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{169DEDDB-B7BE-433C-9960-B2B47F8F1558}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
748 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.167003 -0.362447
52.167437 -0.360681
52.167749 -0.359084
52.168004 -0.357691
52.168224 -0.356089
52.168422 -0.354041
52.16851 -0.352663
52.168537 -0.351859

Segment 5

10 coordinate pairs
Description
A421 northbound access from A4280
Lanes Restricted
1 lane restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A4280
Linear Element Model
The Network Model
Linear Element Id
{BBC6C434-5FDC-4A15-967D-BE7CE2AEFEF4}
Linear Element Type
A Carriageway Entry Slip
From Distance
12 m
To Distance
420 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.152247 -0.38592
52.152233 -0.385827
52.152222 -0.385648
52.152269 -0.385461
52.152417 -0.384977
52.152642 -0.38437
52.152931 -0.383668
52.153325 -0.38287
52.153561 -0.382489
52.154363 -0.381219

Segment 6

3 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{061170C3-77A1-4319-A28C-CA44FF2019D9}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
88 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.154363 -0.381219
52.154787 -0.380692
52.154999 -0.380437

Segment 7

4 coordinate pairs
Description
A421 northbound within the A4280 junction
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{E9F51E6E-14F8-4563-956D-AED90E1ED275}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
503 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.148962 -0.391596
52.150366 -0.388331
52.150968 -0.386921
52.151592 -0.385608

Segment 8

4 coordinate pairs
Description
A421 northbound between A603 and A4280
Carriageway
Dual Carriageway
Lanes Restricted
2 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{4738B12B-C366-4345-B8FD-D8C043E98379}
Linear Element Type
A Carriageway
From Distance
595 m
To Distance
788 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.147847 -0.393757
52.148383 -0.392787
52.148645 -0.39226
52.148962 -0.391596

Segment 9

3 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{092BBE71-B517-4BBE-949F-D542B5A1A7FB}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
273 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.161904 -0.373494
52.162783 -0.372215
52.163677 -0.37073

Segment 10

10 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{0DF6F4C3-B339-F51E-C116-04F171D5DBE1}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
792 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.173428 -0.329495
52.173714 -0.328978
52.173985 -0.328543
52.174883 -0.327156
52.17629 -0.325353
52.176728 -0.324847
52.176731 -0.324843
52.177738 -0.323678
52.178686 -0.322547
52.178954 -0.322234

Segment 11

13 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{061170C3-77A1-4319-A28C-CA44FF2019D9}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
993 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.154363 -0.381219
52.154787 -0.380692
52.155236 -0.380153
52.155595 -0.379771
52.155718 -0.379646
52.156605 -0.378742
52.157413 -0.378048
52.158319 -0.377324
52.159046 -0.376673
52.159922 -0.37585
52.161077 -0.374551
52.161869 -0.373545
52.161904 -0.373494

Segment 12

2 coordinate pairs
Description
A421 northbound within the A4280 junction
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{00AEC654-FD03-4594-BAF1-BD6A464D8C1E}
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 
52.151592 -0.385608
52.151643 -0.385493

Segment 13

7 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{10BD84F2-0C28-4FE4-8522-71B850B6E7A9}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
418 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.184614 -0.312151
52.184761 -0.311173
52.184896 -0.31004
52.18493 -0.309147
52.184942 -0.308127
52.184876 -0.307238
52.184737 -0.306116

Segment 14

4 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{CFE667C0-B87B-4656-8AA0-8A602629C2FD}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
179 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.168537 -0.351859
52.168556 -0.351286
52.168558 -0.350448
52.168574 -0.349233

Segment 15

10 coordinate pairs
Description
A421 northbound between A4280 and A1
Carriageway
Dual Carriageway
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
East Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A421
Linear Element Model
The Network Model
Linear Element Id
{5D5E96DF-FA06-4427-9F9C-7D7219175255}
Linear Element Type
A Carriageway
From Distance
0 m
To Distance
954 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
52.178954 -0.322234
52.180692 -0.320206
52.181646 -0.319086
52.182718 -0.317413
52.183046 -0.3168
52.183628 -0.315511
52.184047 -0.314303
52.184361 -0.313239
52.184586 -0.312307
52.184614 -0.312151
Geometry type
MultiLineString
Geometry points
104
First coordinate pair
-0.385493, 52.151643
Road section segments
1
Road section points
104
View geometry JSON 
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View road section coordinates 
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]
Cause type
Road Maintenance
Detailed cause
Road Marking Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
5
Record created
Tue, Jan 6, 2026 12:52 PM
Record versioned
Mon, Jan 19, 2026 1:43 PM
Coordinate source
Geometry

Driving on the A421? See every live closure, roadwork and planned restriction on this road.

A421 live closures

Related incidents

A1 northbound Wyboston to Buckden carriageway closure

Cleared Roadworks National Highways
Bedford A1 · A1 Northbound Between B1041 And B661

Cleared 1 day 14 hours ago

Started 12 Jun 2026, 20:00 Ended 13 Jun 2026, 04:00

A1 northbound Wyboston to Buckden carriageway closure

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A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Cleared Roadworks National Highways
Bedford A421 · A421 Northbound Within The A603 Junction

Cleared 1 day 18 hours ago

Started 12 Jun 2026, 19:06 Ended 13 Jun 2026, 00:00

A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Category: Road Maintenance
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A421 westbound Approach to Cardington lane 2 closure

Cleared Roadworks National Highways
Bedford A421 · A421 Southbound Between A4280 And A603

Cleared 1 day 13 hours ago

Started 12 Jun 2026, 19:00 Ended 13 Jun 2026, 05:00

A421 westbound Approach to Cardington lane 2 closure

Category: Road Maintenance
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A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Cleared Roadworks National Highways
Bedford A421 · A421 Northbound Within The A603 Junction

Cleared 1 day 23 hours ago

Started 12 Jun 2026, 19:00 Ended 12 Jun 2026, 19:00

A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Category: Road Maintenance
View update

A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Cleared Roadworks National Highways
Bedford A421 · A421 Northbound Within The A603 Junction

Cleared 2 days 23 hours ago

Started 11 Jun 2026, 19:00 Ended 11 Jun 2026, 19:00

A421 eastbound Elstow to Cardington A603 Interchange lane 2 closure

Category: Road Maintenance
View update

A421 westbound Approach to Cardington lane 2 closure

Cleared Roadworks National Highways
Bedford A421 · A421 Southbound Between A4280 And A603

Cleared 2 days 18 hours ago

Started 11 Jun 2026, 19:00 Ended 12 Jun 2026, 00:10

A421 westbound Approach to Cardington lane 2 closure

Category: Road Maintenance
View update