A303 both directions Devonshire House to Horton Cross carriageway closure

Planned

Start time: Mon, Aug 24, 2026 7:00 PM
Expected end: Tue, Aug 25, 2026 5:00 AM
Duration: 10 hours
Road: A303 – A303 Eastbound Between A30/A35 And A358
Category: Road Maintenance
Direction: Eastbound
Carriageway: Dual Carriageway
Reason: Roadworks

Live incident

Active roadworks

Planned

Cleared

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First published: Fri, Jun 12, 2026 12:13 PM
Last updated: Mon, Aug 24, 2026 12:11 AM
Cleared: Tue, Aug 25, 2026 5:00 AM

Latest update: A303 both directions Devonshire House to Horton Cross carriageway closure

Coordinates: 50.892464, -3.056054
Latitude span: 50.892008 – 50.892838
Longitude span: -3.057013 – -3.055338
Bounding box centre: 50.892423, -3.056176
Location descriptions: A303 eastbound between A30/A35 and A358

A303 eastbound at a minor junction between A30/A35 and A358

A303 eastbound access at a minor junction between A30/A35 and A358

Feed validity status: Planned
Overall feed start: Mon, Aug 24, 2026 7:00 PM
Overall feed end: Tue, Aug 25, 2026 5:00 AM
Feed window length: 10 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

2 coordinate pairs

Description: A303 eastbound between A30/A35 and A358
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A303
Linear Element Model: The Network Model
Linear Element Id: {3B1A219C-B159-4BAD-8109-56F61959F77B}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 7 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

50.892742 -3.055444
50.892795 -3.055385

Segment 2

3 coordinate pairs

Description: A303 eastbound at a minor junction between A30/A35 and A358
Lanes Restricted: 1 lane restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A303
Linear Element Model: The Network Model
Linear Element Id: {18786DC9-B214-4503-AEC6-E48B6246692D}
Linear Element Type: B Carriageway Entry Slip
From Distance: 0 m
To Distance: 117 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

50.89211 -3.05678
50.892476 -3.056021
50.892742 -3.055444

Segment 3

3 coordinate pairs

Description: A303 eastbound access at a minor junction between A30/A35 and A358
Carriageway: Single Carriageway
Lanes Restricted: 1 lane restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A303
Linear Element Model: The Network Model
Linear Element Id: {A6B2A09B-82FE-4AE1-84A6-13C55FA82AC4}
Linear Element Type: B Carriageway Entry Slip
From Distance: 9 m
To Distance: 29 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

50.892008 -3.057013
50.892027 -3.056949
50.89211 -3.05678

Segment 4

2 coordinate pairs

Description: A303 eastbound between A30/A35 and A358
Carriageway: Dual Carriageway
Lanes Restricted: 2 lanes restricted
Operational Lanes: 0 operational lanes
Direction On Section: East Bound
Direction Relative: Aligned
Height Grade: Start1 End1
Linear Element Road: A303
Linear Element Model: The Network Model
Linear Element Id: {A93652DF-AF46-4E6B-A7DF-76D4845DFB2C}
Linear Element Type: B Carriageway
From Distance: 0 m
To Distance: 5 m
Gml Srs Name: EPSG::4326
Gml Srs Dimension: 2

Raw coordinate list

50.892795 -3.055385
50.892838 -3.055338

Geometry type: MultiLineString
Geometry points: 10
First coordinate pair: -3.055444, 50.892742
Road section segments: 1
Road section points: 10

View geometry JSON

{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -3.055444,
                50.892742
            ],
            [
                -3.055385,
                50.892795
            ],
            [
                -3.05678,
                50.89211
            ],
            [
                -3.056021,
                50.892476
            ],
            [
                -3.055444,
                50.892742
            ],
            [
                -3.057013,
                50.892008
            ],
            [
                -3.056949,
                50.892027
            ],
            [
                -3.05678,
                50.89211
            ],
            [
                -3.055385,
                50.892795
            ],
            [
                -3.055338,
                50.892838
            ]
        ]
    ]
}

View road section coordinates

Cause type: Road Maintenance
Detailed cause: Roadworks
Compliance: Mandatory
Probability: Probable
Validity status: Planned
Road management: Carriageway Closures
Feed region label: eastbound at a minor