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 11 to Jct 10, lane 3 and 2 closure.

Planned Roadworks National Highways

Bicester M40 · M40 Southbound Between J11 And J10

Expected to clear in 7 hours 30 minutes

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 05:00

M40 Southbound, Jct 11 to Jct 10, lane 3 and 2 closure.

Category: Road Maintenance

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M40 Southbound Jct 5 to Jct 4 hard shoulder, lane 1 and 2 closure

Planned Roadworks National Highways

Wycombe M40 · M40 Southbound Between J5 And J4

Expected to clear in 7 hours 30 minutes

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 05:00

M40 Southbound Jct 5 to Jct 4 hard shoulder, lane 1 and 2 closure

Category: Construction Work

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A40 Eastbound Jct 1 exit slip road lane 1 closure

Planned Roadworks National Highways

Hillingdon M40 · M40 Southbound Between J1A And J1

Expected to clear in 7 hours

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 04:30

A40 Eastbound Jct 1 exit slip road lane 1 closure

Category: Road Maintenance

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M40 Southbound Jct 4 to Jct 3 lane 3 and lane 2 closures.

Planned Roadworks National Highways

Chiltern M40 · M40 Southbound Between J4 And J3

Expected to clear in 7 hours 30 minutes

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 05:00

M40 Southbound Jct 4 to Jct 3 lane 3 and lane 2 closures.

Category: Road Maintenance

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M40 Southbound Jct 5 to Jct 4 hard shoulder and lane 1 and 2 closure

Planned Roadworks National Highways

Wycombe M40 · M40 Southbound Between J5 And J4

Expected to clear in 7 hours 30 minutes

Started 12 Oct 2026, 20:00 Expected clear 13 Oct 2026, 05:00

M40 Southbound Jct 5 to Jct 4 hard shoulder and lane 1 and 2 closure

Category: Road Maintenance

View update

Recently cleared on the M40

All live closures M40 closure history