M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure
PlannedM40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure
- Start time
- Wed, Aug 12, 2026 8:00 PM
- Expected end
- Thu, Aug 13, 2026 5:00 AM
- Duration
- 9 hours
- Road
- M40 – M40 Southbound Between J5 And J4
- Category
- Road Maintenance
- Direction
- Southbound
- 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
- Wed, Jul 8, 2026 2:07 PM
- Last updated
- Wed, Aug 12, 2026 2:15 AM
- Cleared
- Thu, Aug 13, 2026 5:00 AM
- Latest update: M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure
- Coordinates
- 51.648544, -0.893448
- Latitude span
- 51.633590 – 51.660626
- Longitude span
- -0.912660 – -0.878135
- Bounding box centre
- 51.647108, -0.895398
- Location descriptions
-
- M40 southbound between J5 and J4
- M40 southbound within J5
- Feed validity status
- Planned
- Overall feed start
- Wed, Aug 12, 2026 8:00 PM
- Overall feed end
- Thu, Aug 13, 2026 5:00 AM
- Feed window length
- 9 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
27 coordinate pairs- Description
- M40 southbound between J5 and J4
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- South Bound
- Direction Relative
- Aligned
- Height Grade
- Start2 End1
- Linear Element Road
- M40
- Linear Element Model
- The Network Model
- Linear Element Id
- {AE5B4FBB-47CA-4893-8984-491ECE9622A2}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 1,543 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.657891 -0.90342 51.657662 -0.902829 51.657607 -0.9027 51.657423 -0.902228 51.657322 -0.901984 51.657147 -0.901569 51.656973 -0.901183 51.656505 -0.900226 51.656148 -0.899555 51.656071 -0.899412 51.655947 -0.899184 51.655499 -0.898429 51.655107 -0.897831 51.654879 -0.89749 51.654779 -0.897333 51.654314 -0.896708 51.653877 -0.896141 51.653123 -0.895277 51.652823 -0.894952 51.652079 -0.894248 51.651983 -0.894163 51.651517 -0.893755 51.650837 -0.893223 51.650114 -0.892734 51.648989 -0.892068 51.648567 -0.891818 51.646876 -0.89079
Segment 2
6 coordinate pairs- Description
- M40 southbound between J5 and J4
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- South Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End2
- Linear Element Road
- M40
- Linear Element Model
- The Network Model
- Linear Element Id
- {78BD5207-76B6-4C51-AE59-D59BA8BA8DFB}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 202 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.658737 -0.906002 51.65866 -0.905725 51.658419 -0.904936 51.658299 -0.904534 51.658022 -0.90376 51.657891 -0.90342
Segment 3
6 coordinate pairs- Description
- M40 southbound within J5
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- South Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End1
- Linear Element Road
- M40
- Linear Element Model
- The Network Model
- Linear Element Id
- {C33B8878-F16C-45F7-8ACE-8AB1225A1E55}
- Linear Element Type
- B Carriageway
- From Distance
- 8 m
- To Distance
- 515 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.660626 -0.91266 51.660492 -0.912187 51.659795 -0.909735 51.659181 -0.907577 51.659005 -0.906946 51.658737 -0.906002
Segment 4
26 coordinate pairs- Description
- M40 southbound between J5 and J4
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- South Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End1
- Linear Element Road
- M40
- Linear Element Model
- The Network Model
- Linear Element Id
- {E75B78CB-F062-46D2-B271-697BD423A51A}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 1,494 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.646876 -0.89079 51.646795 -0.890734 51.646668 -0.89065 51.646062 -0.890261 51.645057 -0.889577 51.645037 -0.889563 51.644614 -0.88927 51.643654 -0.888585 51.643419 -0.888403 51.642794 -0.887927 51.642042 -0.887353 51.641181 -0.886666 51.640411 -0.886034 51.640139 -0.88581 51.639514 -0.885262 51.638833 -0.884643 51.638216 -0.884036 51.63788 -0.883698 51.637344 -0.883118 51.636835 -0.882553 51.636344 -0.881973 51.635944 -0.881477 51.635662 -0.881122 51.635206 -0.880512 51.635155 -0.880432 51.635152 -0.880427
Segment 5
5 coordinate pairs- Description
- M40 southbound between J5 and J4
- Carriageway
- Dual Carriageway
- Lanes Restricted
- 2 lanes restricted
- Operational Lanes
- 2 operational lanes
- Direction On Section
- South Bound
- Direction Relative
- Aligned
- Height Grade
- Start1 End2
- Linear Element Road
- M40
- Linear Element Model
- The Network Model
- Linear Element Id
- {EE050663-D30B-48AE-ADD6-D2A2C032A2F8}
- Linear Element Type
- B Carriageway
- From Distance
- 0 m
- To Distance
- 235 m
- Gml Srs Name
- EPSG::4326
- Gml Srs Dimension
- 2
Raw coordinate list
51.635152 -0.880427 51.634723 -0.879845 51.634194 -0.879063 51.633693 -0.878296 51.63359 -0.878135
- Geometry type
- MultiLineString
- Geometry points
- 70
- First coordinate pair
- -0.903420, 51.657891
- Road section segments
- 1
- Road section points
- 70
View geometry JSON
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View road section coordinates
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- Cause type
- Road Maintenance
- Detailed cause
- Maintenance Work
- Compliance
- Mandatory
- Probability
- Probable
- Validity status
- Planned
- Road management
- Other
- Feed provider
- National Highways
- Data source
- Roadworks
- Feed version
- 1
- Record created
- Wed, Jul 8, 2026 2:07 PM
- Record versioned
- Wed, Aug 12, 2026 2:15 AM
- Coordinate source
- Geometry
Driving on the M40? See every live closure, roadwork and planned restriction on this road.
M40 live closuresRelated incidents
M40 Southbound Jct 9, carriageway closure between exit and entry slips.
Planned Roadworks National Highways
Bicester
M40 · M40 Southbound Between J9 And J8A
Expected to clear in 1 hour 23 minutes
Started 11 Aug 2026, 21:15
Expected clear 12 Aug 2026, 05:00
M40 Southbound Jct 9, carriageway closure between exit and entry slips.
Category: Road Maintenance
View update
M40 Southbound Jct 15 to Jct 13 lane 3 and 2 closure
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M40 · M40 Southbound Between J14 And J13
Starts in 17 hours 38 minutes
Starts 12 Aug 2026, 21:15
Expected clear 13 Aug 2026, 05:00
M40 Southbound Jct 15 to Jct 13 lane 3 and 2 closure
Category: Road Maintenance
View update
M40 Westbound Jct 1a to M25 Clockwise and Anti-Clockwise Jct 16 Link Road Closure
Planned Roadworks National Highways
South Bucks
M40 · Link Road From M40 J1A Northbound To M25 J16 Anti-Clockwise
Starts in 17 hours 23 minutes
Starts 12 Aug 2026, 21:00
Expected clear 13 Aug 2026, 04:30
M40 Westbound Jct 1a to M25 Clockwise and Anti-Clockwise Jct 16 Link Road Closure
Category: Road Maintenance
View update
M40 Southbound, Jct 5 lane 1 closure on entry slip road
Planned Roadworks National Highways
Wycombe
M40 · M40 J5 Southbound Exit
Starts in 16 hours 23 minutes
Starts 12 Aug 2026, 20:00
Expected clear 13 Aug 2026, 05:00
M40 Southbound, Jct 5 lane 1 closure on entry slip road
Category: Road Maintenance
View update
M40 Southbound, Jct 11 to Jct 10, hard shoulder, lane 1 and 2 closure.
Planned Roadworks National Highways
Bicester
M40 · M40 Southbound Between J11 And J10
Starts in 16 hours 23 minutes
Starts 12 Aug 2026, 20:00
Expected clear 13 Aug 2026, 05:00
M40 Southbound, Jct 11 to Jct 10, hard shoulder, lane 1 and 2 closure.
Category: Road Maintenance
View update
M40 Southbound Jct 4 to Jct 3 lane 3 and 2 closure
Cleared Roadworks National Highways
Chiltern
M40 · M40 Southbound Between J4 And J3
Expected to clear in 1 day 1 hour
Started 12 Aug 2026, 19:00
Expected clear 13 Aug 2026, 05:00
M40 Southbound Jct 4 to Jct 3 lane 3 and 2 closure
Category: Road Maintenance
View update