Swakeleys Roundabout - There is a broken down car on the eastbound on slip road to the A40.
All lanes are open.
Nearest town: 16.78 miles from Great Hampden.

Location: southbound exit slip at junction J1A (Watford) .
Due to: Roadworks.
Period : from 23:29 on 24 April 2026 to 05:30 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.35 miles from Great Hampden.

Location: southbound between junctions J6 (Watford A405) and J5 (Harrow A41) .
Due to: Roadworks.
Period : from 22:56 on 24 April 2026 to 05:30 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.81 miles from Great Hampden.

Location: eastbound exit slip at junction J5 (Colnbrook) .
Due to: Roadworks.
Period : from 21:19 on 24 April 2026 to 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 18.23 miles from Great Hampden.

Location: northbound at junction J2 (Beaconsfield) .
Due to: Roadworks.
Period : from 20:45 on 24 April 2026 to 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 10.55 miles from Great Hampden.

Location: northbound between the A4146 Bletchley South and the junction with the A421 .
Due to: Roadworks.
Period : from 20:17 on 24 April 2026 to 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.32 miles from Great Hampden.

Location: southbound between junctions J9 (Bicester) and J7 (Thame) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 25 April 2026 to 06:00 on 26 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.8 miles from Great Hampden.

Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lane three will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 25 April 2026 to 06:00 on 26 April 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 11 miles from Great Hampden.

Location: southbound entry slip at junction J8 (Hemel Hstead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.46 miles from Great Hampden.

Location: southbound between junctions J9 (Dunstable A5) and J6 (Watford A405) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.63 miles from Great Hampden.

Location: anticlockwise between junctions J18 (Rickmansworth) and J17 (Maple Cross) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Emergency Roadworks.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 12.4 miles from Great Hampden.

Location: anticlockwise exit slip at junction J17 (Maple Cross) .
Due to: Emergency Roadworks.
Period : expect disruption until 05:30 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 12.39 miles from Great Hampden.

Location: northbound at junction J2 (Beaconsfield) .
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 10.59 miles from Great Hampden.

Location: northbound between junctions J1A (Watford) and J2 (Beaconsfield) .
Lane Closures : Lanes 2, 3 and 4 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 11.22 miles from Great Hampden.

Location: eastbound at junction J5 (Colnbrook) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 18.22 miles from Great Hampden.

Location: eastbound between junctions J6 (Slough) and J5 (Colnbrook) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There are two of four lanes closed.
Nearest town: 16.36 miles from Great Hampden.

Location: eastbound exit slip at junction J5 (Colnbrook) .
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 18.22 miles from Great Hampden.

Location: southbound exit slip at junction J5 (Harrow A41) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 17.16 miles from Great Hampden.

Location: southbound between junctions J6 (Watford A405) and J5 (Harrow A41) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.58 miles from Great Hampden.

Location: southbound between junctions J6A (St Albans) and J6 (Watford A405) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.37 miles from Great Hampden.

Location: southbound exit slip at junction J10 (Luton Airport) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.49 miles from Great Hampden.

Location: southbound exit slip at junction J13 (Milton Keynes) .
Due to: Barrier repairs.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.98 miles from Great Hampden.

Location: southbound exit slip at junction J11A .
Due to: Barrier repairs.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.91 miles from Great Hampden.

Location: southbound between junctions J10 (Luton Airport) and J8 (Hemel Hstead) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.49 miles from Great Hampden.

Location: southbound between junctions J11A and J10 (Luton Airport) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.55 miles from Great Hampden.

Location: southbound entry slip at junction J11 (Luton) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.62 miles from Great Hampden.

Location: southbound exit slip at junction J11 (Luton) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.72 miles from Great Hampden.

Location: southbound exit slip at junction J9 (Dunstable A5) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.65 miles from Great Hampden.

Location: southbound between junctions J14 (Milton Keynes) and J11A .
Due to: Barrier repairs.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 18.55 miles from Great Hampden.

Location: southbound between junctions J12 (Flitwick) and J11A .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.05 miles from Great Hampden.

Location: southbound entry slip at junction J11A .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 25 April 2026 to 05:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.46 miles from Great Hampden.

Location: southbound entry slip at junction J14 (Milton Keynes) .
Due to: Barrier repairs.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.6 miles from Great Hampden.

Location: clockwise at junction J20 (Hemel Hstead) .
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.79 miles from Great Hampden.

Location: clockwise at junction J20 (Hemel Hstead) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 13.78 miles from Great Hampden.

Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Due to: Roadworks.
Period : expect disruption until 05:00 on 25 April 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 16.33 miles from Great Hampden.

Location: northbound at junction J1 (Slough) .
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.1 miles from Great Hampden.

Location: westbound between the A437 and the junction with the A412 .
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 16.54 miles from Great Hampden.

Location: northbound between the A4012 and the junction with the A422 .
Due to: Roadworks scheme.
Period : from 20:14 on 20 April 2026 to 06:00 on 13 May 2026.
Nearest town: 19.06 miles from Great Hampden.

Location: southbound between the A4146 South and the junction with the A5183 .
Due to: Planned Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Nearest town: 16.71 miles from Great Hampden.

Location: northbound between the A5183 and the junction with the A4146 Bletchley South.
Due to: Planned Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Nearest town: 16.65 miles from Great Hampden.

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 22:30 on 25 April 2026 to 06:00 on 26 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.2 miles from Great Hampden.

Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
Due to: Roadworks scheme.
Period : from 22:00 on 15 April 2026 to 05:00 on 30 May 2026.
Nearest town: 16.62 miles from Great Hampden.

Location: clockwise between junctions J17 (Maple Cross) and J18 (Rickmansworth) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 12.23 miles from Great Hampden.

Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 1 May 2026 to 05:30 on 2 May 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 12.2 miles from Great Hampden.

Location: northbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.87 miles from Great Hampden.

Location: northbound between the A4012 and the junction with the A4146 Bletchley South.
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.4 miles from Great Hampden.

Location: anticlockwise between junctions J22 (St Albans) and J21A (Watword) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 17.78 miles from Great Hampden.

Location: anticlockwise exit slip at junction J21 (M1) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.85 miles from Great Hampden.

Location: northbound entry slip at junction J6A (St Albans) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.25 miles from Great Hampden.

Location: southbound between junctions J6A (St Albans) and J5 (Harrow A41) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.37 miles from Great Hampden.

Location: southbound between junctions J11 (Luton) and J10 (Luton Airport) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:00 on 1 May 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.46 miles from Great Hampden.

Location: anticlockwise at junction J21 (M1) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 16.85 miles from Great Hampden.

Location: southbound 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 30 April 2026 to 05:00 on 1 May 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 17.64 miles from Great Hampden.

Location: clockwise between junctions J18 (Rickmansworth) and J19 (Watford) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 12.93 miles from Great Hampden.

Location: northbound between junctions J5 (Harrow A41) and J6A (St Albans) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 30 April 2026 to 05:30 on 1 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.84 miles from Great Hampden.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 30 April 2026 to 06:00 on 1 May 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.33 miles from Great Hampden.

Location: westbound entry slip at junction J7 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 30 April 2026 to 06:00 on 1 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.71 miles from Great Hampden.

Location: westbound exit slip at junction J7 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 30 April 2026 to 06:00 on 1 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.93 miles from Great Hampden.

Location: westbound between junctions J6 (Slough) and J8 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 30 April 2026 to 06:00 on 1 May 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.44 miles from Great Hampden.

Location: southbound at the junction with the A4146 South.
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 20:00 on 30 April 2026 to 05:00 on 1 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.33 miles from Great Hampden.

Location: northbound at the junction with the A4146 Bletchley South.
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 20:00 on 30 April 2026 to 05:00 on 1 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.26 miles from Great Hampden.

Location: northbound between the junctions with the A4012 and the A4146 Bletchley South.
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 20:00 on 30 April 2026 to 06:00 on 1 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.01 miles from Great Hampden.

Location: northbound between junctions J6 (Watford A405) and J8 (Hemel Hstead) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 30 April 2026 to 15:30 on 30 April 2026.
Nearest town: 16.2 miles from Great Hampden.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 30 April 2026 to 15:30 on 30 April 2026.
Nearest town: 15.53 miles from Great Hampden.

Location: northbound entry slip at junction J8 (Hemel Hstead) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 30 April 2026 to 15:30 on 30 April 2026.
Nearest town: 15.22 miles from Great Hampden.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 09:30 on 30 April 2026 to 15:30 on 30 April 2026.
Nearest town: 14.77 miles from Great Hampden.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 30 April 2026 to 15:30 on 30 April 2026.
Nearest town: 16.4 miles from Great Hampden.

Location: anticlockwise between junctions J22 (St Albans) and J21A (Watword) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 29 April 2026 to 05:30 on 30 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.78 miles from Great Hampden.

Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 16.09 miles from Great Hampden.

Location: anticlockwise between junctions J17 (Maple Cross) and J16 (M40) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 28 April 2026 to 05:30 on 29 April 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 12.63 miles from Great Hampden.

Location: westbound entry slip at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.1 miles from Great Hampden.

Location: westbound at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.27 miles from Great Hampden.

Location: westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.5 miles from Great Hampden.

Location: westbound between junctions J6 (Slough) and J7 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.76 miles from Great Hampden.

Location: westbound exit slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.27 miles from Great Hampden.

Location: The A404M northbound exit slip at junction J9B .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 28 April 2026 to 06:00 on 29 April 2026.
Nearest town: 13.8 miles from Great Hampden.

Location: The A404M northbound between junctions J9A and J9B .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.21 miles from Great Hampden.

Location: The A404M northbound exit slip at junction J9B .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 28 April 2026 to 06:00 on 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.8 miles from Great Hampden.

Location: northbound between the A4012 and the junction with the A4146 Bletchley South.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 27 April 2026 to 05:00 on 28 April 2026.
Nearest town: 18.37 miles from Great Hampden.

Location: northbound between the junctions with the A4012 and the A4146 Bletchley South.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 27 April 2026 to 05:00 on 28 April 2026.
Nearest town: 18.37 miles from Great Hampden.

Location: southbound between the junctions with the A4146 South and the A4012 .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 27 April 2026 to 05:00 on 28 April 2026.
Nearest town: 18.38 miles from Great Hampden.

Location: southbound between the A4146 South and the junction with the A4012 .
Lane Closures : Lane two will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 27 April 2026 to 05:00 on 28 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.13 miles from Great Hampden.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:30 and 15:30 from 27 April 2026 to 29 April 2026.
Nearest town: 15.62 miles from Great Hampden.

Location: southbound exit slip at junction J8A (Thame) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 5 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 11 May 2026 to 16 May 2026.
Schedule : From 22:15 on 18 May 2026 to 06:00 on 19 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.34 miles from Great Hampden.

Location: southbound entry slip at junction J8A (Thame) .
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.11 miles from Great Hampden.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.3 miles from Great Hampden.

Location: southbound entry slip at junction J3 (Loudwater) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 8.29 miles from Great Hampden.

Location: southbound entry slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.16 miles from Great Hampden.

Location: southbound between junctions J5 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.3 miles from Great Hampden.

Location: southbound exit slip at junction J2 (Beaconsfield) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.07 miles from Great Hampden.

Location: clockwise exit slip at junction J19 (Watford) .
Lane Closures : Lane two will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 27 April 2026 to 29 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.66 miles from Great Hampden.

Location: clockwise between junctions J20 (Hemel Hstead) and J21A (Watword) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 27 April 2026 to 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.86 miles from Great Hampden.

Location: westbound entry slip at junction J4B (Heathrow) from the M25 anti-clockwise.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 27 April 2026 to 05:30 on 10 May 2026.
Nearest town: 19.19 miles from Great Hampden.

Location: clockwise at junction J20 (Hemel Hstead) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 27 April 2026 to 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.78 miles from Great Hampden.

Location: clockwise between junctions J19 (Watford) and J20 (Hemel Hstead) .
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 27 April 2026 to 29 April 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 13.69 miles from Great Hampden.

Location: anticlockwise entry slip at junction J16 (M40) From M40 South.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 27 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.41 miles from Great Hampden.

Location: clockwise entry slip at junction J16 (M40) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 27 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.4 miles from Great Hampden.

Location: anticlockwise between junctions J20 (Hemel Hstead) and J19 (Watford) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 27 April 2026 to 05:30 on 28 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 13.81 miles from Great Hampden.

Location: anticlockwise entry slip at junction J20 (Hemel Hstead) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 27 April 2026 to 05:30 on 28 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.9 miles from Great Hampden.

Location: anticlockwise at junction J20 (Hemel Hstead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 27 April 2026 to 05:30 on 28 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 13.97 miles from Great Hampden.

Location: anticlockwise between junctions J21 (M1) and J20 (Hemel Hstead) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 27 April 2026 to 05:30 on 28 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 15.29 miles from Great Hampden.

Location: westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.23 miles from Great Hampden.

Location: eastbound exit slip at junction J7 (Slough) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Nearest town: 14.89 miles from Great Hampden.

Location: eastbound exit slip at junction J7 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.89 miles from Great Hampden.

Location: westbound at junction J5 (Colnbrook) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.38 miles from Great Hampden.

Location: westbound between junctions J4B (Heathrow) and J5 (Colnbrook) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 18.73 miles from Great Hampden.

Location: westbound entry slip at junction J5 (Colnbrook) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.29 miles from Great Hampden.

Location: eastbound between junctions J8 (High Wycombe) and J7 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 14.82 miles from Great Hampden.

Location: northbound entry slip from the A4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 27 April 2026 to 06:00 on 28 April 2026.
Schedule : From 21:00 on 6 May 2026 to 06:00 on 7 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.67 miles from Great Hampden.

Location: westbound between the junctions with the A405 and the M1 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 26 April 2026 to 06:00 on 27 April 2026.
Nearest town: 16.13 miles from Great Hampden.

Location: westbound between the junctions with the A405 and the M1 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 26 April 2026 to 06:00 on 27 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.13 miles from Great Hampden.

Location: westbound between the junctions with the A405 and the M1 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 26 April 2026 to 06:00 on 27 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.01 miles from Great Hampden.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 25 April 2026 to 27 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.42 miles from Great Hampden.

Location: southbound entry slip at junction J5 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 25 April 2026 to 27 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.33 miles from Great Hampden.

Location: southbound between junctions J6 (Thame) and J5 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 25 April 2026 to 27 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.91 miles from Great Hampden.

Location: southbound.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 25 April 2026 to 27 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.29 miles from Great Hampden.

Location: southbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 25 April 2026 to 27 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 7.19 miles from Great Hampden.

Location: eastbound between the junctions with the M1 and the A405 .
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 1 September 2026 to 5 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 7 September 2026 to 12 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 14 September 2026 to 19 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 21 September 2026 to 26 September 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.71 miles from Great Hampden.

Location: eastbound between the junctions with the M1 and the A405 .
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 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 16 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 18 May 2026 to 23 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 25 May 2026 to 30 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.71 miles from Great Hampden.

Location: westbound between the junctions with the A405 and the M1 .
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 1 September 2026 to 5 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 7 September 2026 to 12 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 14 September 2026 to 19 September 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 21 September 2026 to 26 September 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.07 miles from Great Hampden.

Location: westbound between the junctions with the A405 and the M1 .
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 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 16 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 18 May 2026 to 23 May 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 25 May 2026 to 30 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.07 miles from Great Hampden.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Road repairs.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 7.18 miles from Great Hampden.

Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
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 27 April 2026 to 2 May 2026.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 11 May 2026 to 16 May 2026.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 18 May 2026 to 22 May 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.33 miles from Great Hampden.

Location: northbound between the junctions with the A4146 Bletchley South and the A4146 Bletchley North.
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 19.6 miles from Great Hampden.

Location: northbound between the junctions with the A4146 Bletchley South and the A4146 Bletchley North.
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 19.47 miles from Great Hampden.

Location: northbound between the A4146 Bletchley South and the junction with the A509 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 25 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.96 miles from Great Hampden.

Location: northbound between the A4146 Bletchley South and the junction with the A421 .
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 28 April 2026 to 2 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.47 miles from Great Hampden.

Location: southbound between junctions J6 (Thame) and J5 (High Wycombe) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 April 2026 to 2 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 8.11 miles from Great Hampden.

Location: northbound between junctions J6 (Watford A405) and J8 (Hemel Hstead) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 27 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.85 miles from Great Hampden.

Location: northbound between junctions J6 (Watford A405) and J8 (Hemel Hstead) .
Lane Closures : Lanes 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 27 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.07 miles from Great Hampden.

Location: northbound between junctions J8 (Hemel Hstead) and J10 (Luton Airport) .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 27 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.07 miles from Great Hampden.

Location: northbound exit slip at junction J9 (Dunstable A5) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 27 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.5 miles from Great Hampden.

Location: westbound between junctions J5 (Colnbrook) and J7 (Slough) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Nearest town: 16.72 miles from Great Hampden.

Location: westbound between junctions J6 (Slough) and J7 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 15.76 miles from Great Hampden.

Location: westbound at junction J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.27 miles from Great Hampden.

Location: westbound between junctions J5 (Colnbrook) and J6 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 16.72 miles from Great Hampden.

Location: westbound entry slip at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 29 April 2026 to 06:00 on 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.1 miles from Great Hampden.

Location: The A308M eastbound between the junctions with the M4 and the A308 .
Lane Closures : Lane one will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 27 April 2026 to 2 May 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 4 May 2026 to 9 May 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 11 May 2026 to 16 May 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 18 May 2026 to 22 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.08 miles from Great Hampden.
