Location: southbound between the junctions with the A44 and the A420 .
Due to: Congestion.
Normal traffic conditions are expected between 09:00 and 09:15 on 13 December 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 3.1 miles from Harcourt Hill.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : The hard shoulder is closed.
Due to: Horticultural works.
Period : expect disruption until 23:59 on 13 December 2025.
Nearest town: 17.61 miles from Harcourt Hill.

Location: southbound between the M4 and the junction with the A4 .
Due to: Roadworks.
Period : from 21:30 on 12 December 2025 to 05:00 on 13 December 2025.
Lanes Closed : All lanes are closed.
Nearest town: 19.45 miles from Harcourt Hill.

Location: southbound between the A4185 and the junction with the A4 .
Due to: Road repairs.
Period : expect disruption until 06:00 on 13 December 2025.
Lanes Closed : All lanes are closed.
Nearest town: 18.82 miles from Harcourt Hill.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 13 December 2025 to 06:00 on 14 December 2025.
Nearest town: 18.12 miles from Harcourt Hill.

Location: northbound between the M4 and the junction with the A4185 .
Lane Closures : Lane two is closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 13 December 2025.
Lanes Closed : There is one of two lanes closed.
Nearest town: 19.16 miles from Harcourt Hill.

Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 13 December 2025 to 06:00 on 14 December 2025.
Nearest town: 10.01 miles from Harcourt Hill.

Location: southbound entry slip at junction J7 (Thame) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 13 December 2025 to 06:00 on 14 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 10.09 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 13 December 2025 to 06:00 on 14 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.23 miles from Harcourt Hill.

Location: westbound between junctions J12 (Reading) and J13 (Newbury) .
Lane Closures : The hard shoulder is closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 16:00 on 13 December 2025.
Nearest town: 19.69 miles from Harcourt Hill.

Location: northbound between junctions J7 (Thame) and J8A (Thame) .
Lane Closures : The hard shoulder is closed.
Due to: Horticultural works.
Period : expect disruption until 23:59 on 19 December 2025.
Nearest town: 9.68 miles from Harcourt Hill.

Location: southbound at junction J9 (Bicester) .
Lane Closures : Lane one is closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 13 December 2025.
Lanes Closed : There is one of two lanes closed.
Nearest town: 10.51 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lane one is closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 13 December 2025.
Lanes Closed : There is one of three lanes closed.
Nearest town: 11.7 miles from Harcourt Hill.

Location: northbound between junctions J9 (Bicester) and J11 (Banbury) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 January 2026 to 8 January 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.29 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 12.53 miles from Harcourt Hill.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 19 December 2025 to 06:00 on 20 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 19.58 miles from Harcourt Hill.

Location: southbound exit slip at Chieveley Services.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 December 2025 to 06:00 on 16 December 2025.
Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 January 2026 to 7 January 2026.
Schedule : From 21:00 on 19 January 2026 to 06:00 on 20 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.4 miles from Harcourt Hill.

Location: southbound entry slip from the M4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 December 2025 to 06:00 on 16 December 2025.
Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 January 2026 to 7 January 2026.
Schedule : From 21:00 on 19 January 2026 to 06:00 on 20 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.49 miles from Harcourt Hill.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.12 miles from Harcourt Hill.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:15 on 15 December 2025 to 06:00 on 16 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.62 miles from Harcourt Hill.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.76 miles from Harcourt Hill.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.51 miles from Harcourt Hill.

Location: southbound between junctions J8A (Thame) and J6 (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 13.08 miles from Harcourt Hill.

Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.82 miles from Harcourt Hill.

Location: northbound between junctions J10 (Northampton) and J11 (Banbury) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 16 December 2025 to 23:59 on 16 December 2025.
Nearest town: 16.29 miles from Harcourt Hill.

Location: southbound exit slip at junction J10 (Northampton) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.76 miles from Harcourt Hill.

Location: southbound between junctions J11 (Banbury) and J10 (Northampton) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.37 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lane three will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 14 December 2025 to 06:00 on 15 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 12.12 miles from Harcourt Hill.

Location: northbound between junctions J8A (Thame) and J10 (Northampton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 14 December 2025 to 06:00 on 15 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 9.85 miles from Harcourt Hill.

Location: northbound between the M4 and the junction with the A4185 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.51 miles from Harcourt Hill.

Location: northbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.99 miles from Harcourt Hill.

Location: northbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 16 December 2025 to 06:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.07 miles from Harcourt Hill.

Location: northbound between junctions J9 (Bicester) and J10 (Northampton) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 14 December 2025 to 23:59 on 15 December 2025.
Nearest town: 12.41 miles from Harcourt Hill.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 15 December 2025 to 06:00 on 16 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 9.77 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 December 2025 to 06:00 on 16 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 13.38 miles from Harcourt Hill.

Location: southbound between the A4183 south of Kennington and the junction with the A4130 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 15 December 2025 to 06:00 on 19 December 2025.
Nearest town: 3.85 miles from Harcourt Hill.

Location: southbound between the A4183 south of Kennington and the junction with the A4130 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 3.85 miles from Harcourt Hill.

Location: northbound exit slip to the A415 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 15 December 2025 to 06:00 on 19 December 2025.
Nearest town: 4.68 miles from Harcourt Hill.

Location: northbound exit slip to the A415 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 4.68 miles from Harcourt Hill.

Location: southbound entry slip from the A415 .
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 15 December 2025 to 19 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 4.5 miles from Harcourt Hill.

Location: northbound between the A4130 and the junction with the A415 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 5.19 miles from Harcourt Hill.

Location: northbound between the junctions with the A44 and the M40 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 15 December 2025 to 17 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.72 miles from Harcourt Hill.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 January 2026 to 8 January 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.86 miles from Harcourt Hill.

Location: southbound between junctions J11 (Banbury) and J10 (Northampton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 5 January 2026 to 8 January 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.36 miles from Harcourt Hill.
