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 7 hours 30 minutes

Started 13 Oct 2026, 20:00 Expected clear 14 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 to A46 northbound link road closure

Planned Roadworks National Highways

Royal Leamington Spa M40 · M40 J15 Southbound Exit (After Fast Slip)

Expected to clear in 7 hours 30 minutes

Started 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 05:00

M40 southbound to A46 northbound link road closure

Category: Road Maintenance

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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 28 seconds

Started 13 Oct 2026, 20:00 Expected clear 14 Oct 2026, 04:30

A40 Eastbound Jct 1 exit slip road lane 1 closure

Category: Road Maintenance

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M40 Southbound, Jct 8a to Jct 8 hard shoulder closure

Active Roadworks National Highways

Royal Leamington Spa M40 · M40 Southbound Between J13 And J12

Expected to clear in 4 days 1 hour

Started 13 Oct 2026, 11:25 Expected clear 17 Oct 2026, 22:59

M40 Southbound, Jct 8a to Jct 8 hard shoulder closure

Category: Road Maintenance

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Recently cleared on the M40

All live closures M40 closure history