Location: southbound at junction J5 (High Wycombe) .
Due to: Roadworks.
Period : from 22:59 on 15 June 2026 to 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.36 miles from Upper Winchendon.

Location: southbound exit slip at junction J8A (Thame) .
Due to: Roadworks.
Period : from 21:02 on 15 June 2026 to 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.01 miles from Upper Winchendon.

Location: southbound entry slip at junction J8A (Thame) .
Due to: Roadworks.
Period : from 21:03 on 15 June 2026 to 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.02 miles from Upper Winchendon.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 8.21 miles from Upper Winchendon.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.56 miles from Upper Winchendon.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 08:00 on 16 June 2026 to 17:00 on 16 June 2026.
Nearest town: 13.03 miles from Upper Winchendon.

Location: southbound between junctions J6 (Thame) and J5 (High Wycombe) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 05:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 10.87 miles from Upper Winchendon.

Location: southbound at junction J5 (High Wycombe) .
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 05:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 10.92 miles from Upper Winchendon.

Location: southbound between junctions J8A (Thame) and J8 (Oxford) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 9.02 miles from Upper Winchendon.

Location: southbound exit slip at junction J8A (Thame) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9.02 miles from Upper Winchendon.

Location: southbound entry slip at junction J8A (Thame) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 9 miles from Upper Winchendon.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Lane Closures : The hard shoulder is closed.
Due to: Horticultural works.
Period : expect disruption until 23:59 on 23 June 2026.
Nearest town: 7.75 miles from Upper Winchendon.

Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 9.66 miles from Upper Winchendon.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lane three will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 22 June 2026 to 06:00 on 23 June 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 7.94 miles from Upper Winchendon.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 June 2026 to 24 June 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.01 miles from Upper Winchendon.

Location: southbound between the A421 and the junction with the A4146 South.
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 28 July 2026 to 1 August 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 3 August 2026 to 5 August 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.52 miles from Upper Winchendon.

Location: southbound between the A509 and the junction with the A4146 South.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 July 2026 to 25 July 2026.
Schedule : From 20:00 on 27 July 2026 to 06:00 on 28 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.39 miles from Upper Winchendon.

Location: northbound between the A421 and the junction with the A422 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 8 July 2026 to 11 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 13 July 2026 to 15 July 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.51 miles from Upper Winchendon.

Location: southbound entry slip from the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 July 2026 to 25 July 2026.
Schedule : From 20:00 on 27 July 2026 to 06:00 on 28 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.58 miles from Upper Winchendon.

Location: northbound entry slip from the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 15 July 2026 to 18 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 20 July 2026 to 23 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.46 miles from Upper Winchendon.

Location: southbound exit slip to the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 8 July 2026 to 11 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 13 July 2026 to 15 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.41 miles from Upper Winchendon.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 17 June 2026 to 06:00 on 18 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.56 miles from Upper Winchendon.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 14.38 miles from Upper Winchendon.

Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 June 2026 to 06:00 on 20 June 2026.
Schedule : From 20:00 on 22 June 2026 to 06:00 on 23 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.51 miles from Upper Winchendon.

Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 20 June 2026 to 22 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.51 miles from Upper Winchendon.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 13.47 miles from Upper Winchendon.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 20 June 2026 to 06:00 on 21 June 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 11.01 miles from Upper Winchendon.

Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 17 June 2026 to 06:00 on 18 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.29 miles from Upper Winchendon.
