Home
Live road closures
A404 southbound Jct 9b to M4 carriageway closure

Home
…
A404 southbound Jct 9b to M4 carriageway closure

A404 southbound Jct 9b to M4 carriageway closure

Cleared

Start time: Mon, Feb 9, 2026 9:00 PM
Expected end: Tue, Feb 10, 2026 6:00 AM
Duration: 9 hours
Road: A404(M) – A404(M) Southbound Within J9B
Category: Construction Work
Direction: Southbound
Carriageway: Dual Carriageway
Reason: Construction 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: Sat, Feb 7, 2026 1:31 AM
Last updated: Mon, Feb 9, 2026 7:34 PM
Cleared: Tue, Feb 10, 2026 6:00 AM

Latest update: A404 southbound Jct 9b to M4 carriageway closure

Coordinates: 51.513678, -0.753457
Latitude span: 51.504734 – 51.522454
Longitude span: -0.768105 – -0.730194
Bounding box centre: 51.513594, -0.749150
Location descriptions: A404(M) southbound within J9B

A404(M) J9A southbound access

A404(M) southbound between J9B and J9A

A404 southbound between A4130 and A404(M)/A4

A404(M) J9B southbound access

A404(M) southbound between J9A and J9

Feed validity status: Planned
Overall feed start: Mon, Feb 9, 2026 9:00 PM
Overall feed end: Tue, Feb 10, 2026 6:00 AM
Feed window length: 9 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

9 coordinate pairs

Description: A404(M) southbound within J9B
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {DECFCE15-856A-4B91-A55C-406F1CE316B3}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 271 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.521232 -0.76633
51.52105 -0.766119
51.520932 -0.765992
51.520642 -0.76574
51.520324 -0.765461
51.520133 -0.765293
51.519653 -0.764946
51.519077 -0.764552
51.519064 -0.764544

Segment 2

13 coordinate pairs

Description: A404(M) J9A southbound access
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {DE934E51-9F7F-4AD0-BC01-6F49D5847D52}
Linear Element Type: B Carriageway Entry Slip
From Distance: 2 m
To Distance: 196 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.507016 -0.733422
51.506961 -0.73344
51.506865 -0.733472
51.506802 -0.733494
51.506694 -0.73354
51.506649 -0.733541
51.506532 -0.733516
51.50646 -0.733489
51.506415 -0.733461
51.506387 -0.733433
51.506324 -0.733381
51.506247 -0.733271
51.505667 -0.732125

Segment 3

5 coordinate pairs

Description: A404(M) southbound within J9B
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {AAE6CFBC-861C-4D3F-8240-9818D0B56166}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 261 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.518467 -0.764142
51.518457 -0.764135
51.517335 -0.763394
51.517208 -0.763311
51.51632 -0.762616

Segment 4

4 coordinate pairs

Description: A404(M) southbound between J9B and J9A
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {C1771B23-5BCE-4ACD-8D16-51BD5A85395A}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 88 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.51632 -0.762616
51.515984 -0.762321
51.515666 -0.761998
51.515638 -0.76197

Segment 5

2 coordinate pairs

Description: A404(M) southbound within J9B
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {D4596AD0-E655-41E5-A3F3-D246E662C9BE}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 72 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.519064 -0.764544
51.518467 -0.764142

Segment 6

8 coordinate pairs

Description: A404 southbound between A4130 and A404(M)/A4
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A404
Linear Element Model: The Network Model
Linear Element Id: {695B9677-7FB6-490C-BB5D-9F6CE2AAF42D}
Linear Element Type: B Carriageway
From Distance: 615 m
To Distance: 799 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.522454 -0.768105
51.522419 -0.768042
51.522328 -0.767886
51.522126 -0.76756
51.521916 -0.767248
51.521615 -0.766824
51.521433 -0.766569
51.521232 -0.76633

Segment 7

6 coordinate pairs

Description: A404(M) J9B southbound access
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {BB3C1835-55AC-491B-B290-AA4AE5D6CF0F}
Linear Element Type: B Carriageway Entry Slip
From Distance: 10 m
To Distance: 278 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.518612 -0.763753
51.51858 -0.763764
51.518372 -0.763726
51.517332 -0.763135
51.517269 -0.763108
51.51632 -0.762616

Segment 8

2 coordinate pairs

Description: A404(M) southbound between J9B and J9A
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {9A36C08E-929F-4C16-83C3-50ECB9AD45A0}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 21 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.515638 -0.76197
51.51548 -0.761782

Segment 9

40 coordinate pairs

Description: A404(M) southbound between J9B and J9A
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start2 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {9A36C08E-929F-4C16-83C3-50ECB9AD45A0}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 1,921 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.515638 -0.76197
51.515092 -0.761322
51.514928 -0.761111
51.514526 -0.760559
51.514398 -0.760347
51.514114 -0.75985
51.513812 -0.759296
51.513729 -0.759126
51.513553 -0.758741
51.513526 -0.758684
51.513241 -0.758
51.51312 -0.757701
51.512944 -0.757187
51.512804 -0.75673
51.512618 -0.756072
51.512467 -0.755442
51.512344 -0.754883
51.512316 -0.754726
51.512155 -0.753981
51.512038 -0.753451
51.511815 -0.752434
51.511564 -0.751302
51.510993 -0.748724
51.510946 -0.748509
51.510776 -0.747721
51.510625 -0.747063
51.510407 -0.746074
51.510029 -0.744341
51.509907 -0.743811
51.509642 -0.742579
51.509472 -0.741849
51.509313 -0.741234
51.509125 -0.740562
51.509088 -0.740404
51.509022 -0.740176
51.508957 -0.739933
51.508743 -0.739261
51.508585 -0.73879
51.508418 -0.738305
51.508126 -0.737509

Segment 10

4 coordinate pairs

Description: A404(M) southbound between J9B and J9A
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End2
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {C1771B23-5BCE-4ACD-8D16-51BD5A85395A}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 88 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.51632 -0.762616
51.515984 -0.762321
51.515666 -0.761998
51.515638 -0.76197

Segment 11

3 coordinate pairs

Description: A404(M) southbound between J9A and J9
Carriageway: Dual Carriageway
Lanes Restricted: 3 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: South Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404(M)
Linear Element Model: The Network Model
Linear Element Id: {259A2ACE-3FD6-41C1-9AAC-1860358109D6}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 169 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.505667 -0.732125
51.505009 -0.730734
51.504734 -0.730194

Geometry type: MultiLineString
Geometry points: 96
First coordinate pair: -0.766330, 51.521232
Road section segments: 1
Road section points: 96

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.76633,
                51.521232
            ],
            [
                -0.766119,
                51.52105
            ],
            [
                -0.765992,
                51.520932
            ],
            [
                -0.76574,
                51.520642
            ],
            [
                -0.765461,
                51.520324
            ],
            [
                -0.765293,
                51.520133
            ],
            [
                -0.764946,
                51.519653
            ],
            [
                -0.764552,
                51.519077
            ],
            [
                -0.764544,
                51.519064
            ],
            [
                -0.733422,
                51.507016
            ],
            [
                -0.73344,
                51.506961
            ],
            [
                -0.733472,
                51.506865
            ],
            [
                -0.733494,
                51.506802
            ],
            [
                -0.73354,
                51.506694
            ],
            [
                -0.733541,
                51.506649
            ],
            [
                -0.733516,
                51.506532
            ],
            [
                -0.733489,
                51.50646
            ],
            [
                -0.733461,
                51.506415
            ],
            [
                -0.733433,
                51.506387
            ],
            [
                -0.733381,
                51.506324
            ],
            [
                -0.733271,
                51.506247
            ],
            [
                -0.732125,
                51.505667
            ],
            [
                -0.764142,
                51.518467
            ],
            [
                -0.764135,
                51.518457
            ],
            [
                -0.763394,
                51.517335
            ],
            [
                -0.763311,
                51.517208
            ],
            [
                -0.762616,
                51.51632
            ],
            [
                -0.762616,
                51.51632
            ],
            [
                -0.762321,
                51.515984
            ],
            [
                -0.761998,
                51.515666
            ],
            [
                -0.76197,
                51.515638
            ],
            [
                -0.764544,
                51.519064
            ],
            [
                -0.764142,
                51.518467
            ],
            [
                -0.768105,
                51.522454
            ],
            [
                -0.768042,
                51.522419
            ],
            [
                -0.767886,
                51.522328
            ],
            [
                -0.76756,
                51.522126
            ],
            [
                -0.767248,
                51.521916
            ],
            [
                -0.766824,
                51.521615
            ],
            [
                -0.766569,
                51.521433
            ],
            [
                -0.76633,
                51.521232
            ],
            [
                -0.763753,
                51.518612
            ],
            [
                -0.763764,
                51.51858
            ],
            [
                -0.763726,
                51.518372
            ],
            [
                -0.763135,
                51.517332
            ],
            [
                -0.763108,
                51.517269
            ],
            [
                -0.762616,
                51.51632
            ],
            [
                -0.76197,
                51.515638
            ],
            [
                -0.761782,
                51.51548
            ],
            [
                -0.76197,
                51.515638
            ],
            [
                -0.761322,
                51.515092
            ],
            [
                -0.761111,
                51.514928
            ],
            [
                -0.760559,
                51.514526
            ],
            [
                -0.760347,
                51.514398
            ],
            [
                -0.75985,
                51.514114
            ],
            [
                -0.759296,
                51.513812
            ],
            [
                -0.759126,
                51.513729
            ],
            [
                -0.758741,
                51.513553
            ],
            [
                -0.758684,
                51.513526
            ],
            [
                -0.758,
                51.513241
            ],
            [
                -0.757701,
                51.51312
            ],
            [
                -0.757187,
                51.512944
            ],
            [
                -0.75673,
                51.512804
            ],
            [
                -0.756072,
                51.512618
            ],
            [
                -0.755442,
                51.512467
            ],
            [
                -0.754883,
                51.512344
            ],
            [
                -0.754726,
                51.512316
            ],
            [
                -0.753981,
                51.512155
            ],
            [
                -0.753451,
                51.512038
            ],
            [
                -0.752434,
                51.511815
            ],
            [
                -0.751302,
                51.511564
            ],
            [
                -0.748724,
                51.510993
            ],
            [
                -0.748509,
                51.510946
            ],
            [
                -0.747721,
                51.510776
            ],
            [
                -0.747063,
                51.510625
            ],
            [
                -0.746074,
                51.510407
            ],
            [
                -0.744341,
                51.510029
            ],
            [
                -0.743811,
                51.509907
            ],
            [
                -0.742579,
                51.509642
            ],
            [
                -0.741849,
                51.509472
            ],
            [
                -0.741234,
                51.509313
            ],
            [
                -0.740562,
                51.509125
            ],
            [
                -0.740404,
                51.509088
            ],
            [
                -0.740176,
                51.509022
            ],
            [
                -0.739933,
                51.508957
            ],
            [
                -0.739261,
                51.508743
            ],
            [
                -0.73879,
                51.508585
            ],
            [
                -0.738305,
                51.508418
            ],
            [
                -0.737509,
                51.508126
            ],
            [
                -0.762616,
                51.51632
            ],
            [
                -0.762321,
                51.515984
            ],
            [
                -0.761998,
                51.515666
            ],
            [
                -0.76197,
                51.515638
            ],
            [
                -0.732125,
                51.505667
            ],
            [
                -0.730734,
                51.505009
            ],
            [
                -0.730194,
                51.504734
            ]
        ]
    ]
}

View road section coordinates

Cause type: Construction Work
Detailed cause: Construction Work
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Carriageway Closures