A421 eastbound Renhold to Black Cat roundabout (MP 27/0 - 27/5)- lane 2 closure

Planned

Start time: Mon, Aug 18, 2025 4:00 AM
Expected end: Wed, Mar 31, 2027 10:59 PM
Duration: 1 year 7 months 1 week
Road: A421 – A421 Northbound Between A4280 And A1
Category: Construction Work
Direction: Eastbound
Carriageway: Dual Carriageway
Lanes affected: Lane 2 closed, 1 of 2 lanes affected
Reason: Road Improvement Or Upgrading

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: Thu, Aug 6, 2026 1:20 PM
Last updated: Fri, Aug 7, 2026 10:29 PM
Cleared: Wed, Mar 31, 2027 10:59 PM

Latest update: A421 eastbound Renhold to Black Cat roundabout (MP 27/0 - 27/5)- lane 2 closure

Coordinates: 52.183127, -0.313616
Latitude span: 52.177965 – 52.184942
Longitude span: -0.323407 – -0.305896
Bounding box centre: 52.181454, -0.314652
Location descriptions: A421 northbound between A4280 and A1

roundabout at A1/A421

Feed validity status: Planned
Overall feed start: Mon, Aug 18, 2025 4:00 AM
Overall feed end: Wed, Mar 31, 2027 10:59 PM
Feed window length: 1 year 7 months 1 week
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

10 coordinate pairs

Description: A421 northbound between A4280 and A1
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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

Segment 2

3 coordinate pairs

Description: A421 northbound between A4280 and A1
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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: 656 m
To Distance: 792 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

52.177965 -0.323407
52.178686 -0.322547
52.178954 -0.322234

Segment 3

2 coordinate pairs

Description: roundabout at A1/A421
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 operational lanes
Direction On Section: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A1
Linear Element Model: The Network Model
Linear Element Id: {82E947A7-0D56-4064-BA0D-43CE06A4064C}
Linear Element Type: Other
From Distance: 0 m
To Distance: 4 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

52.184742 -0.305928
52.184777 -0.305896

Segment 4

8 coordinate pairs

Description: A421 northbound between A4280 and A1
Carriageway: Dual Carriageway
Lane Usage: Cl2
Lane Number: 2
Lane Status: Closed
Lane Direction: Aligned
Lanes Restricted: 1 lane restricted
Operational Lanes: 2 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: 431 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
52.184734 -0.306095
52.184742 -0.305928

Geometry type: MultiLineString
Geometry points: 23
First coordinate pair: -0.322234, 52.178954
Road section segments: 1
Road section points: 23

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.322234,
                52.178954
            ],
            [
                -0.320206,
                52.180692
            ],
            [
                -0.319086,
                52.181646
            ],
            [
                -0.317413,
                52.182718
            ],
            [
                -0.3168,
                52.183046
            ],
            [
                -0.315511,
                52.183628
            ],
            [
                -0.314303,
                52.184047
            ],
            [
                -0.313239,
                52.184361
            ],
            [
                -0.312307,
                52.184586
            ],
            [
                -0.312151,
                52.184614
            ],
            [
                -0.323407,
                52.177965
            ],
            [
                -0.322547,
                52.178686
            ],
            [
                -0.322234,
                52.178954
            ],
            [
                -0.305928,
                52.184742
            ],
            [
                -0.305896,
                52.184777
            ],
            [
                -0.312151,
                52.184614
            ],
            [
                -0.311173,
                52.184761
            ],
            [
                -0.31004,
                52.184896
            ],
            [
                -0.309147,
                52.18493
            ],
            [
                -0.308127,
                52.184942
            ],
            [
                -0.307238,
                52.184876
            ],
            [
                -0.306095,
                52.184734
            ],
            [
                -0.305928,
                52.184742
            ]
        ]
    ]
}

View road section coordinates

Cause type: Construction Work
Detailed cause: Road Improvement Or Upgrading
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other