M3 northbound Jct 4a carriageway closure between the exit and entry slip roads

Planned

Start time: Sun, Feb 22, 2026 9:00 PM
Expected end: Mon, Feb 23, 2026 6:00 AM
Duration: 9 hours
Road: M3 – M3 Eastbound Within J4A
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Reason: Maintenance Work

Active

Planned

Cleared

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First published: Sun, Feb 22, 2026 7:51 PM
Last updated: Sun, Feb 22, 2026 8:48 PM
Cleared: Mon, Feb 23, 2026 6:00 AM

Latest update: M3 northbound Jct 4a carriageway closure between the exit and entry slip roads

Coordinates: 51.302528, -0.796598
Latitude span: 51.302055 – 51.303228
Longitude span: -0.801790 – -0.789845
Bounding box centre: 51.302642, -0.795818
Location descriptions: M3 eastbound within J4A

M3 eastbound between J5 and J4A

Feed validity status: Planned
Overall feed start: Sun, Feb 22, 2026 9:00 PM
Overall feed end: Mon, Feb 23, 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

8 coordinate pairs

Description: M3 eastbound within J4A
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M3
Linear Element Model: The Network Model
Linear Element Id: {2BAD99BE-60AD-4298-8236-2A2153FA560E}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 260 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.302129 -0.80096
51.302202 -0.800155
51.302246 -0.799738
51.302268 -0.799536
51.302315 -0.798904
51.302372 -0.7983
51.30246 -0.797272
51.30246 -0.797265

Segment 2

5 coordinate pairs

Description: M3 eastbound within J4A
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M3
Linear Element Model: The Network Model
Linear Element Id: {CC68EED1-30D6-4EB9-962F-5BBA017E515D}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 207 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.302855 -0.792756
51.302887 -0.792448
51.302952 -0.791758
51.303127 -0.790448
51.303228 -0.789845

Segment 3

4 coordinate pairs

Description: M3 eastbound within J4A
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M3
Linear Element Model: The Network Model
Linear Element Id: {7BB22F74-7DE7-48B0-91F2-9442CCBBDCDC}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 317 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.30246 -0.797265
51.3025 -0.796776
51.302533 -0.796431
51.302855 -0.792756

Segment 4

2 coordinate pairs

Description: M3 eastbound between J5 and J4A
Carriageway: Dual Carriageway
Lanes Restricted: 4 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: M3
Linear Element Model: The Network Model
Linear Element Id: {C9C25E72-B6DF-49CA-B703-55E15804042F}
Linear Element Type: B Carriageway
From Distance: 1,420 m
To Distance: 1,478 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

51.302055 -0.80179
51.302129 -0.80096

Geometry type: MultiLineString
Geometry points: 19
First coordinate pair: -0.800960, 51.302129
Road section segments: 1
Road section points: 19

View geometry JSON

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    "type": "MultiLineString",
    "coordinates": [
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            ],
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            ],
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                51.302246
            ],
            [
                -0.799536,
                51.302268
            ],
            [
                -0.798904,
                51.302315
            ],
            [
                -0.7983,
                51.302372
            ],
            [
                -0.797272,
                51.30246
            ],
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                51.30246
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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

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