A404 northbound lane 1 closure (53/6 to 57/8) and on both Marlow slips

Cleared

Start time: Thu, Jul 16, 2026 7:00 PM
Expected end: Fri, Jul 17, 2026 5:00 AM
Duration: 2 seconds
Road: A404 – A404 Northbound Between A4130 And A308
Category: Road Maintenance
Direction: Northbound
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: Sun, Jul 5, 2026 11:56 PM
Last updated: Thu, Jul 16, 2026 6:18 PM
Cleared: Thu, Jul 16, 2026 7:00 PM

Latest update: A404 northbound lane 1 closure (53/6 to 57/8) and on both Marlow slips

Coordinates: 51.554346, -0.775015
Latitude span: 51.552783 – 51.555055
Longitude span: -0.776268 – -0.774202
Bounding box centre: 51.553919, -0.775235
Location descriptions: A404 northbound between A4130 and A308

roundabout at A404/A308

Feed validity status: Planned
Overall feed start: Thu, Jul 16, 2026 7:00 PM
Overall feed end: Fri, Jul 17, 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

12 coordinate pairs

Description: A404 northbound between A4130 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: North Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404
Linear Element Model: The Network Model
Linear Element Id: {102DA854-231D-45E1-8564-C85EFCDE7E0A}
Linear Element Type: A Carriageway
From Distance: 892 m
To Distance: 1,111 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.552783 -0.776268
51.552874 -0.776198
51.553087 -0.776008
51.553433 -0.775691
51.553726 -0.775395
51.55385 -0.775271
51.553912 -0.775211
51.554135 -0.774989
51.554179 -0.774959
51.554278 -0.774913
51.554332 -0.774897
51.554524 -0.774879

Segment 2

5 coordinate pairs

Description: roundabout at A404/A308
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: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404
Linear Element Model: The Network Model
Linear Element Id: {6CC1658B-F42E-43B2-98AF-1D840929C42F}
Linear Element Type: Other
From Distance: 0 m
To Distance: 34 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.554741 -0.774902
51.554829 -0.774837
51.554894 -0.774784
51.554955 -0.774703
51.554996 -0.774622

Segment 3

5 coordinate pairs

Description: roundabout at A404/A308
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: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404
Linear Element Model: The Network Model
Linear Element Id: {941788EB-012D-47CC-8E39-5ACE6CE98B2C}
Linear Element Type: Other
From Distance: 0 m
To Distance: 30 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.554996 -0.774622
51.555022 -0.774538
51.555039 -0.774465
51.555051 -0.774341
51.555055 -0.774202

Segment 4

3 coordinate pairs

Description: roundabout at A404/A308
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: Clockwise
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A404
Linear Element Model: The Network Model
Linear Element Id: {9E414782-8AD4-4C6D-AF9B-DD47561C43F2}
Linear Element Type: Other
From Distance: 0 m
To Distance: 19 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.554562 -0.774875
51.554654 -0.7749
51.554741 -0.774902

Geometry type: MultiLineString
Geometry points: 25
First coordinate pair: -0.776268, 51.552783
Road section segments: 1
Road section points: 25

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -0.776268,
                51.552783
            ],
            [
                -0.776198,
                51.552874
            ],
            [
                -0.776008,
                51.553087
            ],
            [
                -0.775691,
                51.553433
            ],
            [
                -0.775395,
                51.553726
            ],
            [
                -0.775271,
                51.55385
            ],
            [
                -0.775211,
                51.553912
            ],
            [
                -0.774989,
                51.554135
            ],
            [
                -0.774959,
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            ],
            [
                -0.774913,
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            ],
            [
                -0.774897,
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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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            ],
            [
                -0.774538,
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            ],
            [
                -0.774465,
                51.555039
            ],
            [
                -0.774341,
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            ],
            [
                -0.774202,
                51.555055
            ],
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                51.554562
            ],
            [
                -0.7749,
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            ],
            [
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            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Maintenance Work
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Other