M4 eastbound lane 1 and 2 closure (34/0 to 31/4)
PlannedM4 eastbound lane 1 and 2 closure (34/0 to 31/4)
- Start time
- Tue, Aug 18, 2026 7:00 PM
- Expected end
- Wed, Aug 19, 2026 5:00 AM
- Duration
- 10 hours
- Road
- M4 – M4 Eastbound Within J5
- Category
- Road Maintenance
- Direction
- Eastbound
- Carriageway
- Dual Carriageway
- Lanes affected
- 2 of 2 lanes affected
- Reason
- Roadworks
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details
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Flood risk assessment
Planning history
EPC ratings & more
- First published
- Tue, Aug 18, 2026 4:51 AM
- Last updated
- Tue, Aug 18, 2026 8:42 AM
- Cleared
- Wed, Aug 19, 2026 5:00 AM
- Latest update: M4 eastbound lane 1 and 2 closure (34/0 to 31/4)
- Coordinates
- 51.488261, -0.564714
- Latitude span
- 51.486577 – 51.491096
- Longitude span
- -0.580719 – -0.547084
- Bounding box centre
- 51.488837, -0.563902
- Location descriptions
-
- M4 eastbound within J5
- M4 eastbound between J6 and J5
- Feed validity status
- Planned
- Overall feed start
- Tue, Aug 18, 2026 7:00 PM
- Overall feed end
- Wed, Aug 19, 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
4 coordinate pairs- Description
- M4 eastbound within J5
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {4AE6FFC3-8638-D5A0-2A8D-DD39D45FECFC}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 238 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.489843 -0.55021 51.48995 -0.549844 51.49053 -0.547862 51.490737 -0.547084
Segment 2
50 coordinate pairs- Description
- M4 eastbound between J6 and J5
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {4CB54456-8BB5-4985-B157-0BF450980DE7}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 1,765 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.487803 -0.574323 51.487743 -0.574132 51.487715 -0.574061 51.487705 -0.574027 51.487701 -0.574013 51.487668 -0.57389 51.487489 -0.573218 51.487309 -0.572489 51.48716 -0.571785 51.487061 -0.571316 51.486954 -0.570671 51.486799 -0.569592 51.486777 -0.569438 51.4867 -0.568723 51.486666 -0.568404 51.486633 -0.567945 51.486593 -0.566909 51.486589 -0.566563 51.486577 -0.56557 51.48658 -0.565188 51.48658 -0.565109 51.4866 -0.564489 51.486653 -0.563666 51.486724 -0.562915 51.486739 -0.562746 51.486748 -0.56264 51.486838 -0.56197 51.486847 -0.561903 51.486954 -0.561136 51.487081 -0.560455 51.487233 -0.559687 51.487347 -0.559206 51.487404 -0.558961 51.487593 -0.558221 51.488326 -0.555648 51.488514 -0.554922 51.488798 -0.553967 51.488851 -0.553788 51.488988 -0.553282 51.4892 -0.552497 51.489589 -0.551099 51.489614 -0.551011 51.489695 -0.55073 51.489695 -0.550729 51.489695 -0.550728 51.48975 -0.550537 51.489751 -0.550532 51.489835 -0.550241 51.489841 -0.550217 51.489843 -0.55021
Segment 3
15 coordinate pairs- Description
- M4 eastbound between J6 and J5
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {068C0EB9-E240-4DFE-B996-F6E071EDD4E5}
- Linear Element Type
- B Carriageway
- From Distance
- 856 m
- To Distance
- 1,437 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.491096 -0.580719 51.490877 -0.580459 51.490776 -0.580318 51.490319 -0.579684 51.490044 -0.579275 51.489741 -0.578766 51.489392 -0.578143 51.489115 -0.577604 51.488931 -0.577235 51.488672 -0.576667 51.488385 -0.575985 51.488209 -0.5755 51.488088 -0.575187 51.487976 -0.574874 51.487803 -0.574323
- Geometry type
- MultiLineString
- Geometry points
- 69
- First coordinate pair
- -0.550210, 51.489843
- Road section segments
- 1
- Road section points
- 69
View geometry JSON
{
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View road section coordinates
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- Cause type
- Road Maintenance
- Detailed cause
- Roadworks
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Other
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 2
- Record created
- Tue, Aug 18, 2026 4:51 AM
- Record versioned
- Tue, Aug 18, 2026 8:42 AM
- Coordinate source
- Geometry
Driving on the M4? See every live closure, roadwork and planned restriction on this road.
M4 live closuresRelated incidents
M4 eastbound Jct 16 to Jct 15 hardshoulder closure (128/4 to 124/0)
Active Roadworks National Highways
Swindon
M4 · M4 Eastbound Between J16 And J15
Expected to clear in 4 hours 9 minutes
Started 18 Aug 2026, 07:44
Expected clear 18 Aug 2026, 14:00
M4 eastbound Jct 16 to Jct 15 hardshoulder closure (128/4 to 124/0)
Category: Road Maintenance
View update
M4 eastbound Jct 7 entry slip road closure
Planned Roadworks National Highways
Slough
M4 · M4 J7 Eastbound Access
Starts in 10 hours 9 minutes
Starts 18 Aug 2026, 20:00
Expected clear 19 Aug 2026, 05:00
M4 eastbound Jct 7 entry slip road closure
Category: Road Maintenance
View update
M4 southbound Jct 7 lane closure on Huntcombe Spur
Planned Roadworks National Highways
Slough
M4 · Link Road From A4 To M4 J7
Starts in 10 hours 9 minutes
Starts 18 Aug 2026, 20:00
Expected clear 19 Aug 2026, 05:00
M4 southbound Jct 7 lane closure on Huntcombe Spur
Category: Road Maintenance
View update
M4 eastbound lane 3 and 2 closure (82/7 to 80/1)
Planned Roadworks National Highways
West Berkshire
M4 · M4 Eastbound Between J13 And J12
Starts in 9 hours 9 minutes
Starts 18 Aug 2026, 19:00
Expected clear 19 Aug 2026, 05:00
M4 eastbound lane 3 and 2 closure (82/7 to 80/1)
Category: Road Maintenance
View update
M4 eastbound Jct 5 entry slip road lane closures
Planned Roadworks National Highways
Slough
M4 · M4 J5 Eastbound Access
Starts in 9 hours 9 minutes
Starts 18 Aug 2026, 19:00
Expected clear 19 Aug 2026, 05:00
M4 eastbound Jct 5 entry slip road lane closures
Category: Road Maintenance
View update
M4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)
Planned Roadworks National Highways
South Gloucestershire
M4 · M4 Eastbound Between J18 And J17
Starts in 9 hours 9 minutes
Starts 18 Aug 2026, 19:00
Expected clear 19 Aug 2026, 05:00
M4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)
Category: Road Maintenance
View update