M4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)
ActiveM4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)
- Start time
- Thu, Aug 6, 2026 7:08 PM
- Expected end
- Fri, Aug 7, 2026 5:00 AM
- Duration
- 9 hours 52 minutes
- Road
- M4 – M4 Eastbound Between J18 And J17
- Category
- Road Maintenance
- Direction
- Eastbound
- Carriageway
- Dual Carriageway
- Lanes affected
- 2 of 2 lanes affected
- Reason
- Maintenance 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 6, 2026 7:08 PM
- Last updated
- Thu, Aug 6, 2026 9:31 PM
- Cleared
- Fri, Aug 7, 2026 5:00 AM
- Latest update: M4 eastbound Jct 18 to 17 - single lane running (166/1 to 161/7)
- Coordinates
- 51.516009, -2.274132
- Latitude span
- 51.508614 – 51.518951
- Longitude span
- -2.303929 – -2.245264
- Bounding box centre
- 51.513783, -2.274597
- Location descriptions
-
- M4 eastbound between J18 and J17
- Feed validity status
- Active
- Overall feed start
- Thu, Aug 6, 2026 7:08 PM
- Overall feed end
- Fri, Aug 7, 2026 5:00 AM
- Feed window length
- 9 hours 52 minutes
- Probability code (raw)
- certain
- 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
8 coordinate pairs- Description
- M4 eastbound between J18 and J17
- 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
- {4FB2D3E4-9D88-4F28-A736-D687BA408E9A}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 296 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.518936 -2.263735 51.518911 -2.262955 51.518877 -2.262147 51.51885 -2.261816 51.518807 -2.261311 51.518781 -2.260806 51.518685 -2.259653 51.518665 -2.259487
Segment 2
10 coordinate pairs- Description
- M4 eastbound between J18 and J17
- 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
- {D4402748-44C2-4997-9A7E-D2D01A23967A}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 1,030 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.518665 -2.259487 51.518632 -2.25922 51.518455 -2.257908 51.518198 -2.256335 51.51794 -2.25495 51.517655 -2.253594 51.517113 -2.250925 51.516232 -2.246381 51.516048 -2.245371 51.516028 -2.245264
Segment 3
30 coordinate pairs- Description
- M4 eastbound between J18 and J17
- 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
- {8546E8B8-A966-4086-8977-AC3900EB6B05}
- Linear Element Type
- B Carriageway
- From Distance
- 538 m
- To Distance
- 2,912 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.508614 -2.303929 51.508689 -2.303429 51.508954 -2.301845 51.509273 -2.30019 51.509546 -2.298939 51.509719 -2.29819 51.510037 -2.296867 51.510345 -2.295716 51.510726 -2.294335 51.510744 -2.294292 51.511044 -2.293314 51.511714 -2.291301 51.511886 -2.290783 51.51233 -2.28959 51.512638 -2.288727 51.513777 -2.286141 51.514075 -2.285508 51.515214 -2.283123 51.51544 -2.282635 51.515539 -2.282405 51.515883 -2.281585 51.51629 -2.280536 51.516715 -2.279357 51.517096 -2.278091 51.517495 -2.276739 51.517804 -2.275501 51.517867 -2.275213 51.518058 -2.274378 51.518184 -2.273651 51.518186 -2.273644
Segment 4
14 coordinate pairs- Description
- M4 eastbound between J18 and J17
- 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
- {919B07E5-8FE5-4A7F-9E98-CB529E9E2771}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 695 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.518186 -2.273644 51.518523 -2.271499 51.518605 -2.270995 51.518744 -2.26954 51.51878 -2.269166 51.518855 -2.268099 51.518911 -2.267033 51.518929 -2.266572 51.51893 -2.266529 51.518951 -2.265376 51.518945 -2.26441 51.518944 -2.264266 51.518945 -2.264007 51.518936 -2.263735
- Geometry type
- MultiLineString
- Geometry points
- 62
- First coordinate pair
- -2.263735, 51.518936
- Road section segments
- 1
- Road section points
- 62
View geometry JSON
{
"type": "MultiLineString",
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[
-2.261311,
51.518807
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[
-2.260806,
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51.517867
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View road section coordinates
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51.518665
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51.51794
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]
- Cause type
- Road Maintenance
- Detailed cause
- Maintenance Work
- Compliance
- Mandatory
- Probability
- Certain
- Validity status
- Active
- Road management
- Other
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 1
- Record created
- Thu, Aug 6, 2026 7:08 PM
- Record versioned
- Thu, Aug 6, 2026 9:31 PM
- Coordinate source
- Geometry
Driving on the M4? See every live closure, roadwork and planned restriction on this road.
M4 live closuresRelated incidents
M4 westbound Jct 11 entry slip road closure
Active Roadworks National Highways
Reading
M4 · M4 J11 Westbound Access
Expected to clear in 7 hours 7 minutes
Started 6 Aug 2026, 20:06
Expected clear 7 Aug 2026, 05:00
M4 westbound Jct 11 entry slip road closure
Category: Road Maintenance
View update
M4 eastbound lanes 1 and 2 closed
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Expected to clear in 7 hours 7 minutes
Started 6 Aug 2026, 19:07
Expected clear 7 Aug 2026, 05:00
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Category: Construction Work
View update
M4 eastbound lane 4 and lane 3 closure (50/6 to 49/5)
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M4 · M4 Eastbound Between J10 And J8
Expected to clear in 7 hours 7 minutes
Started 6 Aug 2026, 19:00
Expected clear 7 Aug 2026, 05:00
M4 eastbound lane 4 and lane 3 closure (50/6 to 49/5)
Category: Road Maintenance
View update
M4 eastbound Jct 22 to Jct 23 Prince of Wales bridge - lane closure 201/8-198/1
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M4 · M4 Eastbound Between J23 And J22
Expected to clear in 7 hours 7 minutes
Started 6 Aug 2026, 18:56
Expected clear 7 Aug 2026, 05:00
M4 eastbound Jct 22 to Jct 23 Prince of Wales bridge - lane closure 201/8-198/1
Category: Road Maintenance
View update
M4 westbound Jct 12 Lane 1 closure on exit slip road
Active Roadworks National Highways
West Berkshire
M4 · M4 J12 Westbound Exit
Expected to clear in 6 hours 7 minutes
Started 6 Aug 2026, 18:55
Expected clear 7 Aug 2026, 04:00
M4 westbound Jct 12 Lane 1 closure on exit slip road
Category: Authority Operation
View update
M4 eastbound lane 1 and 2 closure (81/3 to 80/4)
Active Roadworks National Highways
West Berkshire
M4 · M4 Eastbound Between J13 And J12
Expected to clear in 7 hours 7 minutes
Started 6 Aug 2026, 18:34
Expected clear 7 Aug 2026, 05:00
M4 eastbound lane 1 and 2 closure (81/3 to 80/4)
Category: Road Maintenance
View update