M40 road closures & live traffic incidents

No live incident closures on the M40 right now, but 4 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 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 6 hours 58 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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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 6 hours 58 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 11 to Jct 10, Lane 3 and lane 2 closure.

Planned Roadworks National Highways

Bicester M40 · M40 Southbound Between J11 And J10

Expected to clear in 6 hours 58 minutes

Started 12 Oct 2026, 19:00 Expected clear 13 Oct 2026, 05:00

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

Category: Road Maintenance

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M40 Southbound, Jct 10 to Jct 9 hard shoulder closure

Planned Roadworks National Highways

Bicester M40 · M40 Southbound Within J9

Expected to clear in 1 day 57 minutes

Started 12 Oct 2026, 11:00 Expected clear 13 Oct 2026, 22:59

M40 Southbound, Jct 10 to Jct 9 hard shoulder closure

Category: Road Maintenance

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Recently cleared on the M40

All live closures M40 closure history