M40 Northbound Jct 8a entry slip road closure

Cleared

M40 Northbound Jct 8a entry slip road closure

Start time
Wed, Jul 8, 2026 9:15 PM
Expected end
Thu, Jul 9, 2026 5:00 AM
Duration
5 hours 25 minutes 2 seconds
Road
M40 – M40 J8A Northbound Access
Category
Road Maintenance
Direction
Northbound
Reason
Repair Work
Live incident
Active roadworks
Planned
Cleared
Hover or tap markers for full details

Move Insights

Thinking of moving to this area?

Check flood risk, planning history, EPC ratings and more with a Move Insights property report.

Flood risk assessment
Planning history
EPC ratings & more
First published
Wed, Jun 10, 2026 2:38 PM
Last updated
Thu, Jul 9, 2026 2:23 AM
Cleared
Thu, Jul 9, 2026 2:40 AM
  • Latest update: M40 Northbound Jct 8a entry slip road closure
Coordinates
51.741039, -1.097341
Latitude span
51.740079 – 51.743268
Longitude span
-1.099144 – -1.096756
Bounding box centre
51.741674, -1.097950
Location descriptions
  • M40 J8A northbound access
Feed validity status
Planned
Overall feed start
Wed, Jul 8, 2026 9:15 PM
Overall feed end
Thu, Jul 9, 2026 5:00 AM
Feed window length
7 hours 45 minutes
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

5 coordinate pairs
Description
M40 J8A northbound access
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{E2DD160C-2414-48BB-B2FD-128ECEAF1649}
Linear Element Type
A Carriageway Entry Slip
From Distance
11 m
To Distance
42 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.740079 -1.096769
51.740193 -1.096757
51.740238 -1.096756
51.74031 -1.09677
51.740353 -1.096797

Segment 2

11 coordinate pairs
Description
M40 J8A northbound access
Lanes Restricted
3 lanes restricted
Operational Lanes
0 operational lanes
Direction On Section
North Bound
Direction Relative
Aligned
Height Grade
Start1 End1
Linear Element Road
M40
Linear Element Model
The Network Model
Linear Element Id
{FFB0F808-B1E2-4EB1-953E-CBA43E031F04}
Linear Element Type
A Carriageway Entry Slip
From Distance
0 m
To Distance
363 m
Gml Srs Name
EPSG::4326
Gml Srs Dimension
2
Raw coordinate list
51.740353 -1.096797
51.740355 -1.096798
51.7405 -1.096882
51.740707 -1.097008
51.740924 -1.097163
51.741123 -1.097318
51.741322 -1.097474
51.74163 -1.097728
51.742445 -1.098508
51.742816 -1.098791
51.743268 -1.099144
Geometry type
MultiLineString
Geometry points
16
First coordinate pair
-1.096769, 51.740079
Road section segments
1
Road section points
16
View geometry JSON
{
    "type": "MultiLineString",
    "coordinates": [
        [
            [
                -1.096769,
                51.740079
            ],
            [
                -1.096757,
                51.740193
            ],
            [
                -1.096756,
                51.740238
            ],
            [
                -1.09677,
                51.74031
            ],
            [
                -1.096797,
                51.740353
            ],
            [
                -1.096797,
                51.740353
            ],
            [
                -1.096798,
                51.740355
            ],
            [
                -1.096882,
                51.7405
            ],
            [
                -1.097008,
                51.740707
            ],
            [
                -1.097163,
                51.740924
            ],
            [
                -1.097318,
                51.741123
            ],
            [
                -1.097474,
                51.741322
            ],
            [
                -1.097728,
                51.74163
            ],
            [
                -1.098508,
                51.742445
            ],
            [
                -1.098791,
                51.742816
            ],
            [
                -1.099144,
                51.743268
            ]
        ]
    ]
}
View road section coordinates
[
    [
        [
            -1.096769,
            51.740079
        ],
        [
            -1.096757,
            51.740193
        ],
        [
            -1.096756,
            51.740238
        ],
        [
            -1.09677,
            51.74031
        ],
        [
            -1.096797,
            51.740353
        ],
        [
            -1.096797,
            51.740353
        ],
        [
            -1.096798,
            51.740355
        ],
        [
            -1.096882,
            51.7405
        ],
        [
            -1.097008,
            51.740707
        ],
        [
            -1.097163,
            51.740924
        ],
        [
            -1.097318,
            51.741123
        ],
        [
            -1.097474,
            51.741322
        ],
        [
            -1.097728,
            51.74163
        ],
        [
            -1.098508,
            51.742445
        ],
        [
            -1.098791,
            51.742816
        ],
        [
            -1.099144,
            51.743268
        ]
    ]
]
Cause type
Road Maintenance
Detailed cause
Repair Work
Compliance
Mandatory
Probability
Probable
Validity status
Planned
Road management
Carriageway Closures
Feed provider
National Highways
Data source
Roadworks
Feed version
2
Record created
Wed, Jun 10, 2026 2:38 PM
Record versioned
Thu, Jul 9, 2026 2:23 AM
Coordinate source
Geometry

Driving on the M40? See every live closure, roadwork and planned restriction on this road.

M40 live closures

Related incidents

M40 Southbound Jct 5 to Jct 4, hardshoulder closure

Active Roadworks National Highways
Wycombe M40 · M40 Southbound Between J5 And J4

Expected to clear in 15 hours 54 minutes

Started 15 Jul 2026, 21:00 Expected clear 20 Jul 2026, 22:59

M40 Southbound Jct 5 to Jct 4, hardshoulder closure

Category: Road Maintenance
View update

M40 Southbound Jct 8 to Jct 7 OX lane 2 closure

Planned Roadworks National Highways
Benson M40 · A40 Eastbound Between A4142 And M40

Starts in 14 hours 10 minutes

Starts 20 Jul 2026, 21:15 Expected clear 21 Jul 2026, 05:00

M40 Southbound Jct 8 to Jct 7 OX lane 2 closure

Category: Road Maintenance
View update

M40 Southbound Jct 4 to Jct 2 lane 3 and 2 closure

Planned Roadworks National Highways
Chiltern M40 · M40 Southbound Within J2

Starts in 14 hours 10 minutes

Starts 20 Jul 2026, 21:15 Expected clear 21 Jul 2026, 05:00

M40 Southbound Jct 4 to Jct 2 lane 3 and 2 closure

Category: Road Maintenance
View update

M40 northbound, Jct 2 entry slip road closure

Planned Roadworks National Highways
South Bucks M40 · M40 J2 Northbound Access

Starts in 14 hours 10 minutes

Starts 20 Jul 2026, 21:15 Expected clear 21 Jul 2026, 05:00

M40 northbound, Jct 2 entry slip road closure

Category: Road Maintenance
View update

M40 Southbound Jct 4 to Jct 2 lane 3 closure

Planned Roadworks National Highways
Chiltern M40 · M40 Southbound Between J4 And J3

Starts in 14 hours 10 minutes

Starts 20 Jul 2026, 21:15 Expected clear 21 Jul 2026, 05:00

M40 Southbound Jct 4 to Jct 2 lane 3 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 12 hours 55 minutes

Starts 20 Jul 2026, 20:00 Expected clear 21 Jul 2026, 05:00

M40 Southbound, Jct 5 lane 1 closure on entry slip road

Category: Road Maintenance
View update