Location: northbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 11:30 and 11:45 on 14 December 2025.
Nearest town: 13.59 miles from Lower Hartwell.

Location: northbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 10:45 and 11:00 on 14 December 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 13.59 miles from Lower Hartwell.

Location: northbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 09:45 and 10:00 on 14 December 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 13.59 miles from Lower Hartwell.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : The hard shoulder is closed.
Due to: Horticultural works.
Period : expect disruption until 23:59 on 15 December 2025.
Nearest town: 14.18 miles from Lower Hartwell.

Location: northbound exit slip at junction J2 (Beaconsfield) .
Lane Closures : Lane two is closed.
Due to: Emergency roadworks.
Period : from 18:53 on 12 December 2025 to 12:00 on 15 December 2025.
Lanes Closed : There is one of two lanes closed.
Nearest town: 17.49 miles from Lower Hartwell.

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: 16.43 miles from Lower Hartwell.

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: 14.47 miles from Lower Hartwell.

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: 16.56 miles from Lower Hartwell.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 14 December 2025 to 23:59 on 18 December 2025.
Nearest town: 13.74 miles from Lower Hartwell.

Location: southbound between junctions J11 (Luton) and J10 (Luton Airport) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 December 2025 to 05:00 on 15 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.3 miles from Lower Hartwell.

Location: southbound entry slip at junction J9 (Dunstable A5) .
Lane Closures : Lane two will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 14 December 2025 to 05:00 on 15 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.86 miles from Lower Hartwell.

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: 10.3 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J10 (Luton Airport) .
Due to: Roadworks scheme.
Period : from 22:02 on 9 December 2025 to 05:00 on 19 December 2025.
Nearest town: 18.85 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J10 (Luton Airport) .
Due to: Roadside Equipment Maintenance.
Period : from 22:00 on 15 October 2025 to 05:00 on 18 December 2025.
Nearest town: 18.79 miles from Lower Hartwell.

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: 17.32 miles from Lower Hartwell.

Location: northbound between the A4012 and the junction with the A422 .
Due to: Roadworks scheme.
Period : from 20:03 on 4 December 2025 to 06:00 on 17 January 2026.
Nearest town: 14.44 miles from Lower Hartwell.

Location: southbound between junctions J11A and J9 (Dunstable A5) .
Due to: Roadside Equipment Maintenance.
Period : from 14:30 on 4 December 2025 to 05:00 on 21 December 2025.
Nearest town: 18.78 miles from Lower Hartwell.

Location: southbound between the A422 and the junction with the A421 .
Due to: Roadworks scheme.
Period : from 20:03 on 4 December 2025 to 06:00 on 21 January 2026.
Nearest town: 16.64 miles from Lower Hartwell.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 13.57 miles from Lower Hartwell.

Location: northbound at junction J4 (High Wycombe) .
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.58 miles from Lower Hartwell.

Location: clockwise entry slip at junction J17 (Maple Cross) .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:30 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.56 miles from Lower Hartwell.

Location: anticlockwise exit slip at junction J17 (Maple Cross) .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:30 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.67 miles from Lower Hartwell.

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: 16.59 miles from Lower Hartwell.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:30 and 15:30 from 18 December 2025 to 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.23 miles from Lower Hartwell.

Location: northbound.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 19 December 2025 to 06:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.78 miles from Lower Hartwell.

Location: northbound between the junctions with the A4155 and the M40 .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 19 December 2025 to 06:00 on 20 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.42 miles from Lower Hartwell.

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: 11.93 miles from Lower Hartwell.

Location: northbound between junctions J4 (High Wycombe) and J5 (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: 12.64 miles from Lower Hartwell.

Location: southbound at the junction with the M1 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 19 December 2025 to 05:00 on 20 December 2025.
Nearest town: 18.71 miles from Lower Hartwell.

Location: northbound at the junction with the M1 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 19 December 2025 to 05:00 on 20 December 2025.
Nearest town: 18.84 miles from Lower Hartwell.

Location: northbound at the junction with the A308 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.38 miles from Lower Hartwell.

Location: northbound between the junctions with the A4130 and the A308 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.74 miles from Lower Hartwell.

Location: clockwise entry slip at junction J18 (Rickmansworth) .
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 15 December 2025 to 05:30 on 16 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.41 miles from Lower Hartwell.

Location: clockwise.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 15 December 2025 to 05:30 on 16 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.4 miles from Lower Hartwell.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lane two will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 13.57 miles from Lower Hartwell.

Location: northbound at junction J4 (High Wycombe) .
Lane Closures : Lane two will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.57 miles from Lower Hartwell.

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: 10.68 miles from Lower Hartwell.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lane three 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 one of three lanes closed.
Nearest town: 12.71 miles from Lower Hartwell.

Location: northbound entry slip from the A4146 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 15 December 2025 to 04:30 on 16 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.54 miles from Lower Hartwell.

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: 10.66 miles from Lower Hartwell.

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: 9.97 miles from Lower Hartwell.

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: 10.75 miles from Lower Hartwell.

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 17 December 2025 to 06:00 on 18 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 12.82 miles from Lower Hartwell.

Location: southbound entry slip at junction J3 (Loudwater) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.19 miles from Lower Hartwell.

Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 15.49 miles from Lower Hartwell.

Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 15.32 miles from Lower Hartwell.

Location: northbound between junctions J11A and J12 (Flitwick) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.61 miles from Lower Hartwell.

Location: northbound between junctions J9 (Dunstable A5) and J10 (Luton Airport) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be two of five lanes closed.
Nearest town: 18.78 miles from Lower Hartwell.

Location: southbound at junction J11 (Luton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: northbound at junction J11 (Luton) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.62 miles from Lower Hartwell.

Location: northbound between junctions J10 (Luton Airport) and J11 (Luton) .
Lane Closures : Lane three will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.56 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.83 miles from Lower Hartwell.

Location: northbound at junction J11 (Luton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.62 miles from Lower Hartwell.

Location: northbound between junctions J10 (Luton Airport) and J11 (Luton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.95 miles from Lower Hartwell.

Location: northbound between junctions J9 (Dunstable A5) and J10 (Luton Airport) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.77 miles from Lower Hartwell.

Location: southbound between junctions J11A and J11 (Luton) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.61 miles from Lower Hartwell.

Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.12 miles from Lower Hartwell.

Location: northbound between junctions J11 (Luton) and J11A .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: southbound between junctions J13 (Milton Keynes) and J12 (Flitwick) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.44 miles from Lower Hartwell.

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 18 December 2025 to 06:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 13.19 miles from Lower Hartwell.

Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 18 December 2025 to 23:59 on 20 December 2025.
Nearest town: 19.53 miles from Lower Hartwell.

Location: southbound between junctions J14 (Milton Keynes) and J13 (Milton Keynes) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 15 December 2025 to 05:00 on 16 December 2025.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 18.65 miles from Lower Hartwell.

Location: southbound between the junctions with the A4146 South and the A4012 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 08:00 on 17 December 2025 to 18:00 on 19 December 2025.
Nearest town: 14.44 miles from Lower Hartwell.

Location: northbound between the junctions with the A4012 and the A4146 Bletchley South.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 08:00 on 17 December 2025 to 18:00 on 19 December 2025.
Nearest town: 14.44 miles from Lower Hartwell.

Location: clockwise entry slip at junction J17 (Maple Cross) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 17 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.57 miles from Lower Hartwell.

Location: clockwise between junctions J16 (M40) and J18 (Rickmansworth) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 17 December 2025 to 19 December 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.66 miles from Lower Hartwell.

Location: clockwise exit slip at junction J17 (Maple Cross) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 17 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.58 miles from Lower Hartwell.

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: 9.09 miles from Lower Hartwell.

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: 10.01 miles from Lower Hartwell.

Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency 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 two of four lanes closed.
Nearest town: 15.49 miles from Lower Hartwell.

Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency 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 two of three lanes closed.
Nearest town: 13.74 miles from Lower Hartwell.

Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lane four will be closed.
Due to: Emergency 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 four lanes closed.
Nearest town: 15.73 miles from Lower Hartwell.

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: 19.86 miles from Lower Hartwell.

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: 18.51 miles from Lower Hartwell.

Location: southbound entry slip from the M40 .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.59 miles from Lower Hartwell.

Location: northbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.59 miles from Lower Hartwell.

Location: northbound between junctions J1A (Watford) and J2 (Beaconsfield) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 18.35 miles from Lower Hartwell.

Location: northbound entry slip at junction J2 (Beaconsfield) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.31 miles from Lower Hartwell.

Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.57 miles from Lower Hartwell.

Location: northbound at junction J2 (Beaconsfield) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 06:00 on 17 December 2025.
Nearest town: 17.24 miles from Lower Hartwell.

Location: northbound entry slip at junction J2 (Beaconsfield) .
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 : All lanes will be closed.
Nearest town: 17.31 miles from Lower Hartwell.

Location: northbound exit slip at junction J2 (Beaconsfield) .
Lane Closures : Lane two will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 December 2025 to 05:00 on 17 December 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.57 miles from Lower Hartwell.

Location: northbound between junctions J11A and J14 (Milton Keynes) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.66 miles from Lower Hartwell.

Location: northbound between junctions J9 (Dunstable A5) and J11A .
Lane Closures : Lanes 1, 2, 3, 4 and 5 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 17 December 2025 to 05:00 on 18 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.77 miles from Lower Hartwell.

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: 10.24 miles from Lower Hartwell.

Location: anticlockwise between junctions J18 (Rickmansworth) and J17 (Maple Cross) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 15 December 2025 to 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.46 miles from Lower Hartwell.

Location: anticlockwise between junctions J20 (Hemel Hstead) and J18 (Rickmansworth) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 15 December 2025 to 17 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 18.39 miles from Lower Hartwell.

Location: anticlockwise at junction J18 (Rickmansworth) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 15 December 2025 to 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.27 miles from Lower Hartwell.

Location: anticlockwise exit slip at junction J17 (Maple Cross) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 15 December 2025 to 17 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.67 miles from Lower Hartwell.

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: 16.89 miles from Lower Hartwell.

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: 15.62 miles from Lower Hartwell.

Location: southbound entry slip from the A4146 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 19 January 2026 to 21 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.58 miles from Lower Hartwell.

Location: southbound exit slip to the A509 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 14 January 2026 to 06:00 on 15 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.81 miles from Lower Hartwell.

Location: southbound exit slip to the A422 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 8 January 2026 to 10 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.2 miles from Lower Hartwell.

Location: northbound entry slip from the A4146 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 16 January 2026 to 06:00 on 17 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.54 miles from Lower Hartwell.

Location: northbound exit slip to the A422 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 January 2026 to 8 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.08 miles from Lower Hartwell.

Location: northbound exit slip to the A509 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 12 January 2026 to 14 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.47 miles from Lower Hartwell.

Location: southbound entry slip from the A422 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 8 January 2026 to 10 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.17 miles from Lower Hartwell.

Location: northbound entry slip from the A422 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 January 2026 to 8 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.11 miles from Lower Hartwell.

Location: southbound exit slip to the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 14 January 2026 to 06:00 on 15 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.33 miles from Lower Hartwell.

Location: northbound exit slip to the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 15 January 2026 to 06:00 on 16 January 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.47 miles from Lower Hartwell.

Location: southbound between junctions J11A and J9 (Dunstable A5) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.65 miles from Lower Hartwell.

Location: northbound entry slip at junction J9 (Dunstable A5) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.7 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 18.85 miles from Lower Hartwell.

Location: northbound exit slip at junction J10 (Luton Airport) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.82 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J10 (Luton Airport) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.79 miles from Lower Hartwell.

Location: southbound at the junction with the M1 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Nearest town: 18.71 miles from Lower Hartwell.

Location: northbound at the junction with the M1 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 15 December 2025 to 19 December 2025.
Nearest town: 18.84 miles from Lower Hartwell.

Location: southbound entry slip at junction J11A .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: southbound between junctions J15 (Northampton) and J14 (Milton Keynes) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.33 miles from Lower Hartwell.

Location: southbound exit slip at junction J10 (Luton Airport) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: southbound entry slip at junction J11 (Luton) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.76 miles from Lower Hartwell.

Location: southbound exit slip at junction J12 (Flitwick) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.12 miles from Lower Hartwell.

Location: southbound exit slip at junction J13 (Milton Keynes) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.85 miles from Lower Hartwell.

Location: southbound entry slip at junction J12 (Flitwick) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.17 miles from Lower Hartwell.

Location: northbound entry slip at junction J9 (Dunstable A5) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 17 December 2025 to 05:00 on 18 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.7 miles from Lower Hartwell.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 17 December 2025 to 05:00 on 18 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 18.91 miles from Lower Hartwell.

Location: southbound entry slip at junction J14 (Milton Keynes) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.03 miles from Lower Hartwell.

Location: southbound between junctions J10 (Luton Airport) and J8 (Hemel Hstead) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.69 miles from Lower Hartwell.

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: 17.63 miles from Lower Hartwell.

Location: southbound exit slip at junction J9 (Dunstable A5) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: southbound exit slip at junction J11A .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.67 miles from Lower Hartwell.

Location: southbound between junctions J14 (Milton Keynes) and J11A .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.08 miles from Lower Hartwell.

Location: southbound exit slip at junction J11 (Luton) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 17.72 miles from Lower Hartwell.

Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 20 December 2025 to 05:00 on 21 December 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 17.93 miles from Lower Hartwell.

Location: northbound between junctions J11 (Luton) and J11A .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 18 December 2025 to 05:00 on 19 December 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.61 miles from Lower Hartwell.

Location: southbound exit slip at Toddington Services.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.17 miles from Lower Hartwell.

Location: southbound entry slip at junction J13 (Milton Keynes) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 19 December 2025 to 05:00 on 20 December 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 18.99 miles from Lower Hartwell.
