A404M southbound lane 2 closure (48/7 to 45/1)

Planned

A404M southbound lane 2 closure (48/7 to 45/1)

Start time
Mon, Jun 8, 2026 7:00 PM
Expected end
Tue, Jun 9, 2026 5:00 AM
Duration
10 hours
Road
A404(M) – A404(M) Southbound Between J9B And J9A
Category
Road Maintenance
Direction
Southbound
Carriageway
Dual Carriageway
Lanes affected
Lane 2 closed, 1 of 2 lanes affected
Reason
Tree And Vegetation Cutting Work
Active
Planned
Cleared
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First published
Fri, Jun 5, 2026 10:29 PM
Last updated
Mon, Jun 8, 2026 5:03 AM
Cleared
Tue, Jun 9, 2026 5:00 AM
  • Latest update: A404M southbound lane 2 closure (48/7 to 45/1)
Coordinates
51.508735, -0.742835
Latitude span
51.499955 – 51.518139
Longitude span
-0.763925 – -0.724749
Bounding box centre
51.509047, -0.744337
Location descriptions
  • A404(M) southbound between J9B and J9A
  • A404(M) southbound within J9B
  • A404(M) southbound within J9A
  • A404(M) southbound between J9A and J9
Feed validity status
Planned
Overall feed start
Mon, Jun 8, 2026 7:00 PM
Overall feed end
Tue, Jun 9, 2026 5:00 AM
Feed window length
10 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

43 coordinate pairs
Description
A404(M) southbound between J9B and J9A
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
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
2,059 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
51.507973 -0.737092
51.507807 -0.736665
51.507622 -0.736237
51.507447 -0.735839

Segment 2

2 coordinate pairs
Description
A404(M) southbound between J9B and J9A
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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404(M)
Linear Element Model
The Network Model
Linear Element Id
{6BC90F08-040C-40E1-9A38-0B579EB75249}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
27 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.507447 -0.735839
51.507293 -0.735525

Segment 3

4 coordinate pairs
Description
A404(M) southbound between J9B and J9A
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
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 4

4 coordinate pairs
Description
A404(M) southbound within J9B
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
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
39 m
To Distance
261 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.518139 -0.763925
51.517335 -0.763394
51.517208 -0.763311
51.51632 -0.762616

Segment 5

4 coordinate pairs
Description
A404(M) southbound within J9A
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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404(M)
Linear Element Model
The Network Model
Linear Element Id
{F1BF7CA7-BBF4-4D74-8164-D23CF17860E2}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
297 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.507293 -0.735525
51.506684 -0.734275
51.506279 -0.733436
51.505667 -0.732125

Segment 6

26 coordinate pairs
Description
A404(M) southbound between J9A and J9
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
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
838 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
51.504583 -0.729881
51.504412 -0.729526
51.504219 -0.729142
51.503916 -0.728589
51.503797 -0.72839
51.503385 -0.727753
51.503367 -0.727725
51.503197 -0.727496
51.503033 -0.727286
51.502932 -0.727161
51.502646 -0.726855
51.502377 -0.726578
51.502055 -0.726299
51.501688 -0.726024
51.501578 -0.725941
51.50079 -0.725488
51.500341 -0.725259
51.500202 -0.72518
51.500088 -0.725077
51.500067 -0.72505
51.500024 -0.724972
51.499986 -0.72487
51.499955 -0.724749
Geometry type
MultiLineString
Geometry points
83
First coordinate pair
-0.761970, 51.515638
Road section segments
1
Road section points
83
View geometry JSON
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View road section coordinates
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Cause type
Road Maintenance
Detailed cause
Tree And Vegetation Cutting Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Fri, Jun 5, 2026 10:29 PM
Record versioned
Mon, Jun 8, 2026 5:03 AM
Coordinate source
Geometry

Related incidents

A404M southbound lane 2 closure (48/7 to 45/1)

Planned National Highways
Windsor And Maidenhead A404(M) · A404(M) Southbound Between J9B And J9A
Starts 8 Jun 2026, 19:00 Expected 9 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update

A404M southbound lane 2 closure (48/7 to 45/1)

Planned National Highways
Windsor And Maidenhead A404(M) · A404(M) Southbound Between J9B And J9A
Starts 5 Jun 2026, 19:00 Expected 6 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update

A404M southbound lane 2 closure (48/7 to 45/1)

Planned National Highways
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Starts 5 Jun 2026, 19:00 Expected 6 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update

A404M southbound lane 2 closure (48/7 to 45/1)

Cleared National Highways
Windsor And Maidenhead A404(M) · A404(M) Southbound Between J9B And J9A
Starts 5 Jun 2026, 18:43 Expected 6 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update

A404M southbound lane 2 closure (48/7 to 45/1)

Cleared National Highways
Windsor And Maidenhead A404(M) · A404(M) Southbound Between J9B And J9A
Starts 5 Jun 2026, 18:43 Expected 6 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update

A404M southbound lane 2 closure (48/7 to 45/1)

Cleared National Highways
Windsor And Maidenhead A404(M) · A404(M) Southbound Between J9B And J9A
Starts 5 Jun 2026, 18:43 Expected 6 Jun 2026, 05:00

A404M southbound lane 2 closure (48/7 to 45/1)

Category: Road Maintenance
View update