M40 road closures & live traffic incidents

No live incident closures on the M40 right now, but 1 roadwork is 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.

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Active roadworks
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M40 roadworks in force now

M40 Southbound, Jct 9 to Jct 8a, hard shoulder closure.

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J9 And J8A

Expected to clear in 12 hours 56 minutes

Started 4 Aug 2026, 06:00 Expected clear 6 Aug 2026, 22:59

M40 Southbound, Jct 9 to Jct 8a, hard shoulder closure.

Category: Road Maintenance
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M40 closures planned this week

M40 Southbound, Jct 9 to Jct 8a, lane 3 closure.

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Within J9

Starts in 9 hours 57 minutes

Starts 6 Aug 2026, 20:00 Expected clear 7 Aug 2026, 05:00

M40 Southbound, Jct 9 to Jct 8a, lane 3 closure.

Category: Road Maintenance
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M40 Southbound Jct 6 to Jct 5 lane 3 and lane 2 closure.

Planned Roadworks National Highways
Wycombe M40 · M40 Southbound Between J6 And J5

Starts in 9 hours 57 minutes

Starts 6 Aug 2026, 20:00 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 6 to Jct 5 lane 3 and lane 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 9 hours 57 minutes

Starts 6 Aug 2026, 20:00 Expected clear 7 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 11 to Jct 10, hard shoulder, lane 3 and 2 closure.

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J11 And J10

Starts in 9 hours 57 minutes

Starts 6 Aug 2026, 20:00 Expected clear 7 Aug 2026, 05:00

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

Category: Road Maintenance
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M40 Southbound Jct 2 to Jct 1a lane 4 closure

Planned Roadworks National Highways
South Bucks M40 · M40 Southbound Between J2 And J1A

Starts in 9 hours 57 minutes

Starts 6 Aug 2026, 20:00 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 2 to Jct 1a lane 4 closure

Category: Road Maintenance
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M40 Southbound, Jct 9 to Jct 8 , lane 3 closure.

Planned Roadworks National Highways
Benson M40 · M40 Southbound Within J8A

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 04:00

M40 Southbound, Jct 9 to Jct 8 , lane 3 closure.

Category: Road Maintenance
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M40 Southbound Jct 9, carriageway closure between exit and entry slips.

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J9 And J8A

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 9, carriageway closure between exit and entry slips.

Category: Road Maintenance
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M40 Southbound Jct 9 to Jct 8a lane 3 and lane 2 closures

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J9 And J8A

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 9 to Jct 8a lane 3 and lane 2 closures

Category: Road Maintenance
View update

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

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Between J11 And J10

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

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

Category: Road Maintenance
View update

M40 Southbound Jct 10 to Jct 9 lane 3 and lane 2 closure

Planned Roadworks National Highways
Bicester M40 · M40 Southbound Within J9

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 10 to Jct 9 lane 3 and lane 2 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 Between J10 And J9

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 10 to Jct 9 carriageway closure

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

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

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 northbound, Jct 4 to Jct 5, lane 3 and 2 closure

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

Planned Roadworks National Highways
Wycombe M40 · M40 Southbound Between J6 And J5

Starts in 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 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 11 hours 12 minutes

Starts 6 Aug 2026, 21:15 Expected clear 7 Aug 2026, 05:00

M40 Southbound Jct 10 entry slip road closure

Category: Road Maintenance
View update

Recently cleared on the M40