M4 eastbound lanes 1 and 2 closed
PlannedM4 eastbound lanes 1 and 2 closed
- Start time
- Thu, Aug 20, 2026 7:00 PM
- Expected end
- Fri, Aug 21, 2026 5:00 AM
- Duration
- 10 hours
- Road
- M4 – M4 Eastbound Between J19 And J18
- Category
- Construction Work
- Direction
- Eastbound
- Carriageway
- Dual Carriageway
- Lanes affected
- 2 of 2 lanes affected
- Reason
- Construction Work
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
- Thu, Aug 20, 2026 2:26 AM
- Last updated
- Thu, Aug 20, 2026 4:03 AM
- Cleared
- Fri, Aug 21, 2026 5:00 AM
- Latest update: M4 eastbound lanes 1 and 2 closed
- Coordinates
- 51.505896, -2.493500
- Latitude span
- 51.499380 – 51.513755
- Longitude span
- -2.518424 – -2.450694
- Bounding box centre
- 51.506568, -2.484559
- Location descriptions
-
- M4 eastbound between J19 and J18
- M4 eastbound within J19
- Feed validity status
- Planned
- Overall feed start
- Thu, Aug 20, 2026 7:00 PM
- Overall feed end
- Fri, Aug 21, 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
24 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {B2CC76F6-B619-49EF-BE0F-2FA6608BD373}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 940 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.506368 -2.510752 51.506164 -2.510245 51.50603 -2.509884 51.505871 -2.509449 51.505746 -2.509059 51.505622 -2.50864 51.505454 -2.508062 51.505321 -2.507513 51.505242 -2.507123 51.505172 -2.506747 51.505015 -2.505665 51.504834 -2.503776 51.504826 -2.503617 51.504817 -2.503458 51.50481 -2.503084 51.504804 -2.502435 51.504815 -2.501902 51.504827 -2.501326 51.504874 -2.500621 51.504894 -2.500361 51.505006 -2.499369 51.505126 -2.498462 51.505237 -2.497786 51.50524 -2.497772
Segment 2
2 coordinate pairs- Description
- M4 eastbound within J19
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {93B3E094-7C2C-4794-8F7A-35DC21348483}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 120 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.513206 -2.518062 51.512202 -2.517403
Segment 3
7 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {69CD72CD-8EF0-4552-BE28-974A48E8FC63}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 167 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.507285 -2.512661 51.507036 -2.512215 51.506796 -2.511722 51.506742 -2.511609 51.506644 -2.511403 51.50644 -2.51094 51.506368 -2.510752
Segment 4
4 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {193477EE-F920-4DA1-9FD6-013337672884}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 165 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.510068 -2.515909 51.509361 -2.515267 51.508797 -2.514698 51.508788 -2.514684
Segment 5
3 coordinate pairs- Description
- M4 eastbound within J19
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {DE3F153B-AE64-49E0-BB4C-FE52319A0321}
- Linear Element Type
- B Carriageway
- From Distance
- 420 m
- To Distance
- 486 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.513755 -2.518424 51.513358 -2.518165 51.513206 -2.518062
Segment 6
10 coordinate pairs- Description
- M4 eastbound between J19 and J18
- 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
- {4FC55118-21B8-4C2A-8C78-DCFC2676C5E1}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 549 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.50524 -2.497772 51.505242 -2.497759 51.505422 -2.496635 51.505643 -2.49537 51.505947 -2.49363 51.506003 -2.493227 51.506077 -2.492695 51.506188 -2.491889 51.506263 -2.49127 51.506376 -2.490076
Segment 7
9 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {D220B0D0-30D4-43FF-9FDC-24DE0B352023}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 941 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.504586 -2.473052 51.504496 -2.472708 51.504407 -2.472361 51.503708 -2.469502 51.502956 -2.466511 51.502266 -2.463705 51.501947 -2.46241 51.50169 -2.461398 51.501451 -2.46046
Segment 8
4 coordinate pairs- Description
- M4 eastbound within J19
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {2DA6C824-2FEC-492C-94D1-2991AE668E78}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 259 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.512202 -2.517403 51.510731 -2.516435 51.510292 -2.516099 51.510068 -2.515909
Segment 9
23 coordinate pairs- Description
- M4 eastbound between J19 and J18
- 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
- {C3679DF2-03F3-4CA4-BB4D-FDC094D96E6A}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 1,215 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.506376 -2.490076 51.506394 -2.489932 51.506452 -2.489111 51.50649 -2.488621 51.506509 -2.487959 51.506521 -2.487527 51.506542 -2.48672 51.506538 -2.485668 51.506523 -2.484861 51.506482 -2.483881 51.50644 -2.483247 51.506363 -2.482237 51.506268 -2.481271 51.506162 -2.480463 51.506155 -2.480405 51.506076 -2.479857 51.505883 -2.478688 51.505727 -2.477865 51.505725 -2.47785 51.505522 -2.476854 51.505336 -2.476088 51.504589 -2.473064 51.504586 -2.473052
Segment 10
9 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End2
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {C8C2B02F-1D98-4706-A542-202CE0EC054D}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 218 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.508788 -2.514684 51.508457 -2.514305 51.508269 -2.514058 51.508028 -2.513767 51.507858 -2.513549 51.507643 -2.513244 51.50742 -2.512896 51.507295 -2.512679 51.507285 -2.512661
Segment 11
10 coordinate pairs- Description
- M4 eastbound between J19 and J18
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- East Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End1
- Linear Element Road
- M4
- Linear Element Model
- The Network Model
- Linear Element Id
- {ECE92394-6379-4B07-B9E8-82CA83CEA3C5}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 716 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.501451 -2.46046 51.501115 -2.459102 51.500832 -2.457903 51.500673 -2.457196 51.500416 -2.456055 51.500055 -2.454294 51.499869 -2.453442 51.499675 -2.452446 51.499499 -2.451393 51.49938 -2.450694
- Geometry type
- MultiLineString
- Geometry points
- 105
- First coordinate pair
- -2.510752, 51.506368
- Road section segments
- 1
- Road section points
- 105
View geometry JSON
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View road section coordinates
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]
- Cause type
- Construction Work
- Detailed cause
- Construction Work
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Other
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 2
- Record created
- Thu, Aug 20, 2026 2:26 AM
- Record versioned
- Thu, Aug 20, 2026 4:03 AM
- Coordinate source
- Geometry
Driving on the M4? See every live closure, roadwork and planned restriction on this road.
M4 live closuresRelated incidents
A40 eastbound M5 Jct 11 exit slip road - lane closure
Planned Roadworks National Highways
South Gloucestershire
A40 · A40 Eastbound Between A417 Near Gloucester (North) And M5
Starts in 15 hours 26 minutes
Starts 20 Aug 2026, 20:00
Expected clear 21 Aug 2026, 05:00
A40 eastbound M5 Jct 11 exit slip road - lane closure
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 14 hours 26 minutes
Starts 20 Aug 2026, 19:00
Expected clear 21 Aug 2026, 05:00
M4 eastbound lane 3 and 2 closure (82/7 to 80/1)
Category: Road Maintenance
View update
M5 Both Directions Jct 9 to Jct 15 mobile lane closures
Planned Roadworks National Highways
South Gloucestershire
M5 · M5 Northbound Between J15 And J14
Starts in 14 hours 26 minutes
Starts 20 Aug 2026, 19:00
Expected clear 21 Aug 2026, 05:00
M5 Both Directions Jct 9 to Jct 15 mobile lane closures
Category: Road Maintenance
View update
Single lane running
Planned Roadworks National Highways
South Gloucestershire
M4 · M4 Eastbound Between J19 And J18
Starts in 14 hours 26 minutes
Starts 20 Aug 2026, 19:00
Expected clear 21 Aug 2026, 05:00
single lane running
Category: Road Maintenance
View update
M4 westbound Jct 17 exit and entry slip roads lane closures
Planned Roadworks National Highways
Wiltshire
M4 · M4 J17 Westbound Exit
Starts in 14 hours 26 minutes
Starts 20 Aug 2026, 19:00
Expected clear 21 Aug 2026, 05:00
M4 westbound Jct 17 exit and entry slip roads lane closures
Category: Road Maintenance
View update
M4 eastbound Jct 16 to Jct 15 hardshoulder closure (128/4 to 124/0)
Planned Roadworks National Highways
Swindon
M4 · M4 Eastbound Between J16 And J15
Starts in 3 hours 26 minutes
Starts 20 Aug 2026, 08:00
Expected clear 20 Aug 2026, 14:00
M4 eastbound Jct 16 to Jct 15 hardshoulder closure (128/4 to 124/0)
Category: Road Maintenance
View update