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M40 road closures & live traffic incidents

No live incident closures on the M40 right now, but 2 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 15 to Jct 1 Mobile lane closures

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

Expected to clear in 9 hours 51 minutes

Started 29 Jul 2026, 18:00 Expected clear 30 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 2 days 2 hours

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 5 to Jct 4 lane 3 closure

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

Starts in 1 hour 7 minutes

Starts 29 Jul 2026, 21:15 Expected clear 30 Jul 2026, 05:00

M40 Southbound, Jct 5 to Jct 4 lane 3 closure

Category: Road Maintenance
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M40 southbound Jct 10 entry slip road closure

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

Starts in 1 hour 7 minutes

Starts 29 Jul 2026, 21:15 Expected clear 30 Jul 2026, 05:00

M40 southbound Jct 10 entry slip road closure

Category: Road Maintenance
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M40 southbound Jct 12 to Jct 11 carriageway closure

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J13 And J12

Starts in 1 hour 7 minutes

Starts 29 Jul 2026, 21:15 Expected clear 30 Jul 2026, 05:00

M40 southbound Jct 12 to Jct 11 carriageway closure

Category: Road Maintenance
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M40 southbound Jct 10 to Jct 9 carriageway closure

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Within J9

Starts in 1 hour 7 minutes

Starts 29 Jul 2026, 21:15 Expected clear 30 Jul 2026, 05:00

M40 southbound Jct 10 to Jct 9 carriageway closure

Category: Road Maintenance
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Recently cleared on the M40

All live closures M40 closure history