Crash View

A404 southbound lane 1 closure (60/4 - 55/7)

Cleared

A404 southbound lane 1 closure (60/4 - 55/7)

Start time
Mon, Jul 27, 2026 8:00 PM
Expected end
Tue, Jul 28, 2026 5:00 AM
Duration
2 seconds
Road
A404 – A404 Southbound Between M40 And A4155
Category
Road Maintenance
Direction
Southbound
Carriageway
Dual Carriageway
Lanes affected
Lane 1 closed, 1 of 1 lanes affected
Reason
Maintenance Work
Live incident
Active roadworks
Planned
Cleared
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First published
Tue, Feb 17, 2026 8:14 AM
Last updated
Mon, Jul 27, 2026 6:48 PM
Cleared
Mon, Jul 27, 2026 8:00 PM
  • Latest update: A404 southbound lane 1 closure (60/4 - 55/7)
Coordinates
51.588647, -0.759886
Latitude span
51.568512 – 51.611391
Longitude span
-0.767525 – -0.756136
Bounding box centre
51.589952, -0.761831
Location descriptions
  • A404 southbound between M40 and A4155
  • A404 southbound within the A4155 junction
  • A404 southbound between A4155 and A308
  • A404 southbound within M40 junction
Feed validity status
Planned
Overall feed start
Mon, Jul 27, 2026 8:00 PM
Overall feed end
Tue, Jul 28, 2026 5:00 AM
Feed window length
9 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

3 coordinate pairs
Description
A404 southbound between M40 and A4155
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
South Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{CBF966F0-5143-40C3-9ECC-491CAABF4E00}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
6 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.607003 -0.765611
51.606999 -0.76561
51.606945 -0.765582

Segment 2

2 coordinate pairs
Description
A404 southbound between M40 and A4155
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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{13BE8CA9-CB89-46D4-8457-F0913B8ABA3E}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
480 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.611174 -0.767431
51.607003 -0.765611

Segment 3

13 coordinate pairs
Description
A404 southbound between M40 and A4155
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
South Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{B77D5C44-D00A-4F33-87F9-ED926ADA5E51}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
855 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.591466 -0.758969
51.591219 -0.75888
51.591198 -0.758872
51.590663 -0.758693
51.590141 -0.758539
51.589374 -0.758346
51.587869 -0.758052
51.587063 -0.757895
51.586532 -0.757795
51.585891 -0.757673
51.58491 -0.757477
51.584642 -0.757423
51.583855 -0.757216

Segment 4

2 coordinate pairs
Description
A404 southbound within the A4155 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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{18949402-74F0-4BE5-AE50-D8FE5AB003AE}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
83 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.581637 -0.756847
51.580893 -0.756727

Segment 5

5 coordinate pairs
Description
A404 southbound between A4155 and A308
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
South Bound
Direction Relative
Aligned
Height Grade
Start2 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{9C0F1683-0E3D-4FF3-AB38-22DB507C8B54}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
227 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.570415 -0.759127
51.570361 -0.759157
51.569745 -0.759564
51.568825 -0.760137
51.568512 -0.760344

Segment 6

2 coordinate pairs
Description
A404 southbound between A4155 and A308
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
South Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{FBFC5F8F-B90D-48B6-A223-5C17848ADB02}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
12 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.570513 -0.759052
51.570415 -0.759127

Segment 7

3 coordinate pairs
Description
A404 southbound within M40 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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{A56FAE55-9618-404F-981B-E02BA110CFD8}
Linear Element Type
B Carriageway
From Distance
47 m
To Distance
72 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.611391 -0.767525
51.611362 -0.767513
51.611174 -0.767431

Segment 8

15 coordinate pairs
Description
A404 southbound between A4155 and A308
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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End2
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{49789A0B-CC68-40B8-A95D-50F3F4305383}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
869 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.578041 -0.756159
51.577415 -0.756136
51.576317 -0.756208
51.575922 -0.756284
51.575278 -0.756435
51.57482 -0.756584
51.574446 -0.756722
51.57395 -0.756937
51.573613 -0.757103
51.573169 -0.757359
51.572671 -0.757677
51.572248 -0.757944
51.571771 -0.758254
51.571156 -0.758645
51.570513 -0.759052

Segment 9

5 coordinate pairs
Description
A404 southbound within the A4155 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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{1A209EC7-846D-401C-BAFF-27DC22B9DA2A}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
248 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.583855 -0.757216
51.582947 -0.757112
51.582423 -0.757006
51.581867 -0.756881
51.581637 -0.756847

Segment 10

4 coordinate pairs
Description
A404 southbound within the A4155 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
South Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{AEFC2EA6-CE0B-4652-946B-A7C59C20AFBA}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
319 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.580893 -0.756727
51.579838 -0.756533
51.578587 -0.7563
51.578041 -0.756159

Segment 11

33 coordinate pairs
Description
A404 southbound between M40 and A4155
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
South Bound
Direction Relative
Aligned
Height Grade
Start2 End2
Linear Element Road
A404
Linear Element Model
The Network Model
Linear Element Id
{789FA5CC-21D4-43A6-B2AD-6D9F9BE295CE}
Linear Element Type
B Carriageway
From Distance
0 m
To Distance
1,781 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list 
51.606945 -0.765582
51.605861 -0.765121
51.602317 -0.763595
51.602152 -0.763536
51.601706 -0.76335
51.60111 -0.763094
51.600702 -0.762913
51.600342 -0.76275
51.599912 -0.762557
51.599456 -0.762359
51.599015 -0.762173
51.598619 -0.762005
51.598149 -0.761799
51.597661 -0.761596
51.597232 -0.761401
51.596825 -0.761235
51.596371 -0.761035
51.595983 -0.760864
51.595512 -0.760662
51.595348 -0.760587
51.595085 -0.760466
51.594647 -0.760273
51.594202 -0.760085
51.593674 -0.759873
51.593323 -0.75973
51.59314 -0.759666
51.59306 -0.759638
51.592974 -0.759597
51.592706 -0.759469
51.592416 -0.759347
51.59202 -0.759184
51.591735 -0.75907
51.591466 -0.758969
Geometry type
MultiLineString
Geometry points
87
First coordinate pair
-0.765611, 51.607003
Road section segments
1
Road section points
87
View geometry JSON 
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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            ],
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}
View road section coordinates 
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    ]
]
Cause type
Road Maintenance
Detailed cause
Maintenance Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Other
Feed provider
National Highways
Data source
Roadworks
Feed version
1
Record created
Tue, Feb 17, 2026 8:14 AM
Record versioned
Mon, Jul 27, 2026 6:48 PM
Coordinate source
Geometry

Driving on the A404? See every live closure, roadwork and planned restriction on this road.

A404 live closures

Related incidents

M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Cleared Roadworks National Highways
Wycombe M40 · M40 Southbound Within J4

Expected to clear in 1 day 1 hour

Started 2 Aug 2026, 20:00 Expected clear 3 Aug 2026, 05:00

M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Category: Road Maintenance
View update

M40 Southbound Jct 2 to Jct 1a hard shoulder, lane 1 and 2 closure

Cleared Roadworks National Highways
Wycombe M40 · M40 Southbound Between J5 And J4

Expected to clear in 1 hour 51 minutes

Started 1 Aug 2026, 20:00 Expected clear 2 Aug 2026, 05:00

M40 Southbound Jct 2 to Jct 1a hard shoulder, lane 1 and 2 closure

Category: Road Maintenance
View update

M40 Southbound, Jct 5 lane 1 closure on entry slip road

Cleared Roadworks National Highways
Wycombe M40 · M40 J5 Southbound Exit

Cleared 22 hours 38 minutes ago

Started 31 Jul 2026, 20:00 Ended 1 Aug 2026, 04:30

M40 Southbound, Jct 5 lane 1 closure on entry slip road

Category: Road Maintenance
View update

M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Cleared Roadworks National Highways
Wycombe M40 · M40 Southbound Between J5 And J4

Cleared 22 hours 8 minutes ago

Started 31 Jul 2026, 20:00 Ended 1 Aug 2026, 05:00

M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Category: Road Maintenance
View update

M40 Southbound Jct 5 to Jct 4 lane 2 and 3 closure

Cleared Roadworks National Highways
Wycombe M40 · M40 Southbound Between J5 And J4

Cleared 22 hours 8 minutes ago

Started 31 Jul 2026, 20:00 Ended 1 Aug 2026, 05:00

M40 Southbound Jct 5 to Jct 4 lane 2 and 3 closure

Category: Construction Work
View update

A404 southbound Burchetts Green exit slip road closure

Cleared Roadworks National Highways
Windsor And Maidenhead A404 · A404 Southbound Exit For A4130

Cleared 1 day 22 hours ago

Started 30 Jul 2026, 20:56 Ended 31 Jul 2026, 04:30

A404 southbound Burchetts Green exit slip road closure

Category: Road Maintenance
View update