M40 road closures & live traffic incidents

No live incident closures on the M40 right now, but 5 roadworks are currently in force.

Live M40 updates from National Highways and Traffic Wales: incident closures, roadworks in force, planned closures for the week ahead and recently cleared disruption.

Live incident
Active roadworks
Planned
Cleared
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M40 roadworks in force now

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

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

Expected to clear in 9 minutes 38 seconds

Started 30 Jul 2026, 20:00 Expected clear 31 Jul 2026, 05:00

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

Category: Road Maintenance
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M40 Southbound, Jct 5 lane 1 closure on entry slip road

Planned Roadworks National Highways
Wycombe M40 · M40 J5 Southbound Exit

Expected to clear in 9 minutes 38 seconds

Started 30 Jul 2026, 20:00 Expected clear 31 Jul 2026, 05:00

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

Category: Road Maintenance
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M40 northbound, Jct 9 to Jct 10, lane 3 and 2 closure

Planned Roadworks National Highways
Bicester M40 · M40 Northbound Between J9 And J10

Expected to clear in 9 minutes 38 seconds

Started 30 Jul 2026, 20:00 Expected clear 31 Jul 2026, 05:00

M40 northbound, Jct 9 to Jct 10, lane 3 and 2 closure

Category: Road Maintenance
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M40 Southbound, Jct 15 to Jct 1 Mobile lane closures

Planned Roadworks National Highways
Aylesbury Vale M40 · M40 Southbound Between J5 And J4

Expected to clear in 1 hour 8 minutes

Started 30 Jul 2026, 18:00 Expected clear 31 Jul 2026, 05:59

M40 Southbound, Jct 15 to Jct 1 Mobile lane closures

Category: Road Maintenance
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M40 Southbound, Jct 7 to Jct 6 hard shoulder closure

Active Roadworks National Highways
Benson M40 · M40 Southbound Between J7 And J6

Expected to clear in 18 hours 8 minutes

Started 26 Jul 2026, 09:50 Expected clear 31 Jul 2026, 22:59

M40 Southbound, Jct 7 to Jct 6 hard shoulder closure

Category: Road Maintenance
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M40 closures planned this week

M40 Southbound, Jct 8a exit slip road lane one closure

Planned Roadworks National Highways
Benson M40 · M40 J8A Southbound Exit

Starts in 1 hour 9 minutes

Starts 31 Jul 2026, 06:00 Expected clear 31 Jul 2026, 18:00

M40 Southbound, Jct 8a exit slip road lane one closure

Category: Road Maintenance
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M40 Southbound, Jct 15 to Jct 1 Mobile lane closures

Planned Roadworks National Highways
Aylesbury Vale M40 · M40 Southbound Between J5 And J4

Starts in 13 hours 9 minutes

Starts 31 Jul 2026, 18:00 Expected clear 1 Aug 2026, 05:59

M40 Southbound, Jct 15 to Jct 1 Mobile lane closures

Category: Road Maintenance
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M40 Southbound Jct 4 to Jct 3 hard shoulder and lane 1 closure

Planned Roadworks National Highways
Chiltern M40 · M40 Southbound Within J4

Starts in 14 hours 9 minutes

Starts 31 Jul 2026, 19:00 Expected clear 1 Aug 2026, 05:00

M40 Southbound Jct 4 to Jct 3 hard shoulder and lane 1 closure

Category: Road Maintenance
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M40 lane 2 and 3 closure southbound

Planned Roadworks National Highways
Royal Leamington Spa M40 · M40 Southbound Between J16 And J15

Starts in 15 hours 9 minutes

Starts 31 Jul 2026, 20:00 Expected clear 1 Aug 2026, 05:00

M40 lane 2 and 3 closure southbound

Category: Road Maintenance
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M40 Southbound Jct 5 to Jct 4 lane 2 and 3 closure

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

Starts in 15 hours 9 minutes

Starts 31 Jul 2026, 20:00 Expected clear 1 Aug 2026, 05:00

M40 Southbound Jct 5 to Jct 4 lane 2 and 3 closure

Category: Construction Work
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M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Planned Roadworks National Highways
Wycombe M40 · M40 Southbound Within J5

Starts in 15 hours 9 minutes

Starts 31 Jul 2026, 20:00 Expected clear 1 Aug 2026, 05:00

M40 Southbound Jct 5 to Jct 4 lane 3 and 2 closure

Category: Road Maintenance
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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 15 hours 9 minutes

Starts 31 Jul 2026, 20:00 Expected clear 1 Aug 2026, 05:00

M40 Southbound, Jct 11 to Jct 10, hard shoulder, lane 1 and 2 closure.

Category: Road Maintenance
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M40 Southbound, Jct 5 lane 1 closure on entry slip road

Planned Roadworks National Highways
Wycombe M40 · M40 J5 Southbound Exit

Starts in 15 hours 9 minutes

Starts 31 Jul 2026, 20:00 Expected clear 1 Aug 2026, 05:00

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

Category: Road Maintenance
View update

Recently cleared on the M40