Location: southbound between junctions J15 (Northampton) and J14 (Milton Keynes) .
Lane Closures : Lanes 2, 3 and 4 are closed.
Due to: Road traffic collision.
Time To Clear : The event is expected to clear between 11:45 and 12:00 on 28 April 2026.
Normal traffic conditions are expected between 11:45 and 12:00 on 28 April 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 17.94 miles from Marsworth.

Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Due to: Road traffic collision.
Status : Cleared.
Nearest town: 17.45 miles from Marsworth.

Location: southbound between junctions J11 (Luton) and J10 (Luton Airport) .
Lane Closures : Lane three is closed.
Due to: Road traffic collision.
Time To Clear : The event is expected to clear between 08:00 and 08:15 on 28 April 2026.
Normal traffic conditions are expected between 08:00 and 08:15 on 28 April 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 10.37 miles from Marsworth.

Swakeleys Roundabout - There is a broken down car on the eastbound on slip road to the A40.
All lanes are open.
Nearest town: 19.71 miles from Marsworth.

Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 10:30 and 10:45 on 28 April 2026.
Nearest town: 14.88 miles from Marsworth.

Location: southbound between junctions J15 (Northampton) and J14 (Milton Keynes) .
Due to: Congestion.
Normal traffic conditions are expected between 10:15 and 10:30 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.81 miles from Marsworth.

Location: The A1M southbound exit slip at junction J6 .
Due to: Congestion.
Normal traffic conditions are expected between 09:15 and 09:30 on 28 April 2026.
Nearest town: 19.54 miles from Marsworth.

Location: westbound between the junctions with the M1 and the A4147 .
Due to: Congestion.
Normal traffic conditions are expected between 09:00 and 09:15 on 28 April 2026.
Nearest town: 11.26 miles from Marsworth.

Location: The junction of the A414 and the A1M .
Due to: Congestion.
Normal traffic conditions are expected between 08:45 and 09:00 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 19.15 miles from Marsworth.

Location: clockwise exit slip at junction J21A (Watword) .
Due to: Congestion.
Normal traffic conditions are expected between 09:00 and 09:15 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.28 miles from Marsworth.

Location: northbound entry slip at junction J1 (Slough) .
Due to: Congestion.
Normal traffic conditions are expected between 09:30 and 09:45 on 28 April 2026.
Nearest town: 19.08 miles from Marsworth.

Location: southbound entry slip at junction J10 (Luton Airport) .
Due to: Congestion.
Normal traffic conditions are expected between 08:30 and 08:45 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 10.72 miles from Marsworth.

Location: southbound between the junctions with the M25 and the M1 .
Due to: Congestion.
Normal traffic conditions are expected between 08:30 and 08:45 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.39 miles from Marsworth.

Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Due to: Congestion.
Normal traffic conditions are expected between 08:15 and 08:30 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 16.82 miles from Marsworth.

Location: clockwise entry slip at junction J16 (M40) .
Due to: Congestion.
Normal traffic conditions are expected between 08:00 and 08:15 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 18.38 miles from Marsworth.

Location: northbound between the junctions with the A412 and the M1 .
Due to: Congestion.
Normal traffic conditions are expected between 09:00 and 09:15 on 28 April 2026.
Nearest town: 14.39 miles from Marsworth.

Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 08:15 and 08:30 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.88 miles from Marsworth.

Location: southbound exit slip at junction J1 (Slough) .
Due to: Congestion.
Normal traffic conditions are expected between 08:15 and 08:30 on 28 April 2026.
Nearest town: 19 miles from Marsworth.

Location: clockwise at junction J14 (Heathrow Airport) .
Due to: Congestion.
Normal traffic conditions are expected between 09:00 and 09:15 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Earlier
Due to: Caused by an earlier accident.
Nearest town: 19 miles from Marsworth.

Location: northbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 07:45 and 08:00 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 14.77 miles from Marsworth.

Location: southbound exit slip to the A4155 .
Due to: Congestion.
Normal traffic conditions are expected between 08:00 and 08:15 on 28 April 2026.
Nearest town: 16.62 miles from Marsworth.

Location: southbound between junctions J11A and J11 (Luton) .
Due to: Congestion.
Normal traffic conditions are expected between 07:15 and 07:30 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 10.09 miles from Marsworth.

Location: anticlockwise exit slip at junction J21A (Watword) .
Due to: Congestion.
Normal traffic conditions are expected between 07:00 and 07:15 on 28 April 2026.
Nearest town: 14.6 miles from Marsworth.

Location: anticlockwise entry slip at junction J19 (Watford) .
Due to: Congestion.
Normal traffic conditions are expected between 07:00 and 07:15 on 28 April 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 13.67 miles from Marsworth.

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: 15.48 miles from Marsworth.

Location: clockwise exit slip at junction J19 (Watford) .
Lane Closures : Lane two will be closed.
Due to: Road 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 one of two lanes closed.
Nearest town: 13.1 miles from Marsworth.

Location: clockwise between junctions J20 (Hemel Hstead) and J21A (Watword) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:00 on 28 April 2026 to 05:30 on 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.43 miles from Marsworth.

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 : From 22:00 on 28 April 2026 to 05:30 on 29 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.6 miles from Marsworth.

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 : 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: 13.13 miles from Marsworth.

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 28 April 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 12.64 miles from Marsworth.

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 28 April 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 12.49 miles from Marsworth.

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: 11.94 miles from Marsworth.

Location: northbound between the A4146 Bletchley South and the junction with the A509 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 28 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.04 miles from Marsworth.

Location: northbound entry slip from the A4146 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 28 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.35 miles from Marsworth.

Location: northbound exit slip to the A421 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 28 April 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.79 miles from Marsworth.

Location: southbound entry slip at junction J9 (Dunstable A5) .
Due to: Roadworks scheme.
Period : from 22:00 on 27 April 2026 to 05:00 on 1 June 2026.
Nearest town: 10.74 miles from Marsworth.

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: 14.61 miles from Marsworth.

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: 14.12 miles from Marsworth.

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: 14.5 miles from Marsworth.

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: 14.92 miles from Marsworth.

Location: westbound between the junctions with the A405 and the M1 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 July 2026 to 11 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 13 July 2026 to 18 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 20 July 2026 to 25 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.92 miles from Marsworth.

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 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.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 June 2026 to 6 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.5 miles from Marsworth.

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 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.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 June 2026 to 6 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.92 miles from Marsworth.

Location: northbound between junctions J11A and J12 (Flitwick) .
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: 10.44 miles from Marsworth.

Location: southbound between junctions J6A (St Albans) and J6 (Watford A405) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:30 and 16:00 from 5 May 2026 to 8 May 2026.
Nearest town: 13.75 miles from Marsworth.

Location: southbound at junction J1A (Watford) .
Lane Closures : Lane three will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 4 May 2026 to 06:00 on 5 May 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.42 miles from Marsworth.

Location: The A1M southbound exit slip at junction J3 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.56 miles from Marsworth.

Location: southbound between junctions J6 (Watford A405) and J5 (Harrow A41) .
Lane Closures : Lanes 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 4 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 06:00 on 9 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.56 miles from Marsworth.

Location: southbound entry slip at junction J5 (Harrow A41) .
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 4 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 06:00 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.24 miles from Marsworth.

Location: southbound exit slip at junction J4 (Edgware A41) .
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 4 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 06:00 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.83 miles from Marsworth.

Location: southbound between junctions J5 (Harrow A41) and J1 (North Circular) .
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 4 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 06:00 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.94 miles from Marsworth.

Location: The A1M southbound between junctions J4 and J2 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.18 miles from Marsworth.

Location: The A1M northbound between junctions J3 and J4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.52 miles from Marsworth.

Location: The A1M southbound at junction J4 .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.14 miles from Marsworth.

Location: The A1M southbound between junctions J6 and J4 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.89 miles from Marsworth.

Location: The A1M northbound at junction J3 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.63 miles from Marsworth.

Location: The A1M northbound between junctions J2 and J3 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 5 May 2026 to 8 May 2026.
Schedule : From 23:00 on 8 May 2026 to 05:30 on 9 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.89 miles from Marsworth.

Location: southbound between junctions J10 (Luton Airport) and 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 16 May 2026 to 18 May 2026.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 30 May 2026 to 1 June 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 10.63 miles from Marsworth.

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 28 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: 10.77 miles from Marsworth.

Location: southbound between junctions J9 (Dunstable A5) and J8 (Hemel Hstead) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:00 from 9 May 2026 to 11 May 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 10.77 miles from Marsworth.

Location: southbound entry slip at junction J9 (Dunstable A5) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 9 May 2026 to 05:00 on 10 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.74 miles from Marsworth.

Location: southbound exit slip to the M1 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 9 May 2026 to 05:00 on 10 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.71 miles from Marsworth.

Location: northbound between junctions J5 (Harrow A41) and J6 (Watford A405) .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:30 on 3 May 2026 to 05:30 on 4 May 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.72 miles from Marsworth.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 3 May 2026 to 19:00 on 10 May 2026.
Nearest town: 18 miles from Marsworth.

Location: southbound entry slip at junction J2 (Beaconsfield) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 2 May 2026 to 06:00 on 3 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.42 miles from Marsworth.

Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 2 May 2026 to 06:00 on 3 May 2026.
Nearest town: 15.5 miles from Marsworth.

Location: The A1M southbound exit slip at junction J3 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 23:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.52 miles from Marsworth.

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: 14.12 miles from Marsworth.

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: 14.61 miles from Marsworth.

Location: The A1M southbound between junctions J4 and J2 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 23:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.19 miles from Marsworth.

Location: The A1M southbound at junction J4 .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 23:00 on 1 May 2026 to 06:00 on 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.14 miles from Marsworth.

Location: The A1M southbound between junctions J6 and J4 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks 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 three lanes closed.
Nearest town: 18.89 miles from Marsworth.

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: 11.53 miles from Marsworth.

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: 10.96 miles from Marsworth.

Location: The A1M southbound exit slip at junction J3 .
Due to: Roadworks 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: 18.55 miles from Marsworth.

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: 15.37 miles from Marsworth.

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: 14.37 miles from Marsworth.

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: 13.74 miles from Marsworth.

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: 14.02 miles from Marsworth.

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: 9.85 miles from Marsworth.

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: 14.37 miles from Marsworth.

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: 9.96 miles from Marsworth.

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: 12.94 miles from Marsworth.

Location: The A1M southbound between junctions J4 and J2 .
Due to: Roadworks 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: 19.19 miles from Marsworth.

Location: The A1M southbound between junctions J6 and J4 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: 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: 18.89 miles from Marsworth.

Location: The A1M southbound at junction J4 .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks 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: 19.14 miles from Marsworth.

Location: The A1M southbound exit slip at junction J4 .
Due to: Roadworks 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: 19.14 miles from Marsworth.

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: 15.2 miles from Marsworth.

Location: The A1M northbound between junctions J2 and J3 .
Lane Closures : Lane two will be closed.
Due to: 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 one of two lanes closed.
Nearest town: 18.89 miles from Marsworth.

Location: The A1M northbound between junctions J3 and J4 .
Due to: Roadworks 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: 18.52 miles from Marsworth.

Location: The A1M northbound at junction J3 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks 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: 18.65 miles from Marsworth.

Location: The A1M northbound exit slip at junction J4 .
Due to: Roadworks 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: 19.07 miles from Marsworth.

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: 12.3 miles from Marsworth.

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: 12.22 miles from Marsworth.

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: 11.86 miles from Marsworth.

Location: northbound between the junctions with the A508 and the A43 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 30 April 2026 to 06:00 on 1 May 2026.
Nearest town: 19.32 miles from Marsworth.

Location: southbound between the junctions with the A508 and the A422 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are 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: 19.28 miles from Marsworth.

Location: southbound between the junctions with the A43 and the A508 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 30 April 2026 to 06:00 on 1 May 2026.
Nearest town: 19.36 miles from Marsworth.

Location: northbound between the junctions with the A422 and the A508 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are 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: 18.71 miles from Marsworth.

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: 13.53 miles from Marsworth.

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: 11.24 miles from Marsworth.

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: 11.39 miles from Marsworth.

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: 18.69 miles from Marsworth.

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: 10.71 miles from Marsworth.

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: 15.37 miles from Marsworth.

Location: northbound entry slip from the A4146 .
Due to: Road repairs 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: 13.35 miles from Marsworth.

Location: southbound between the A421 and the junction with the A4146 North.
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 28 April 2026 to 1 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.84 miles from Marsworth.

Location: southbound entry slip from the A421 .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 28 April 2026 to 1 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.87 miles from Marsworth.

Location: northbound between junctions J8 (Hemel Hstead) and J9 (Dunstable A5) .
Lane Closures : The hard shoulder is closed.
Due to: Roadside Drains Works.
Period : expect disruption until 15:30 on 28 April 2026.
Nearest town: 11.22 miles from Marsworth.

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 28 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: 19.16 miles from Marsworth.

Location: southbound entry slip at junction J8A (Thame) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:15 and 06:00 from 28 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: 19.03 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.16 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.62 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.72 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.95 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.28 miles from Marsworth.

Location: The A1M northbound between junctions J2 and J3 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.89 miles from Marsworth.

Location: The A1M southbound between junctions J4 and J2 .
Due to: Roadworks 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: 19.19 miles from Marsworth.

Location: The A1M northbound between junctions J3 and J4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.52 miles from Marsworth.

Location: The A1M southbound between junctions J6 and J4 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.89 miles from Marsworth.

Location: The A1M southbound at junction J4 .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.14 miles from Marsworth.

Location: The A1M northbound at junction J3 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.65 miles from Marsworth.

Location: The A1M northbound exit slip at junction J4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.07 miles from Marsworth.

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 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.37 miles from Marsworth.

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 28 April 2026 to 30 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.37 miles from Marsworth.

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: 14.5 miles from Marsworth.

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 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.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 June 2026 to 6 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.5 miles from Marsworth.

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: 14.92 miles from Marsworth.

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 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.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 1 June 2026 to 6 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.92 miles from Marsworth.

Location: northbound between junctions J4 (High Wycombe) 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 28 April 2026 to 2 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.15 miles from Marsworth.

Location: northbound between the junctions with the A509 and the A422 .
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 11 May 2026 to 13 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.42 miles from Marsworth.

Location: northbound between the A509 and the junction with the A422 .
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 11 May 2026 to 13 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.1 miles from Marsworth.

Location: northbound between the junctions with the A421 and the A509 .
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 5 May 2026 to 9 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.32 miles from Marsworth.

Location: northbound between the junctions with the A421 and the A509 .
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 5 May 2026 to 9 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.4 miles from Marsworth.

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 5 May 2026 to 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.8 miles from Marsworth.

Location: northbound between the A421 and the junction with the A509 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 5 May 2026 to 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.76 miles from Marsworth.

Location: northbound between the A4146 Bletchley North and the junction with the A422 .
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 : All lanes will be closed.
Nearest town: 13.8 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.76 miles from Marsworth.

Location: northbound between the junctions with the A4146 Bletchley North and 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: 13.8 miles from Marsworth.

Location: northbound between the A509 and the junction with the A508 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 5 May 2026 to 9 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.02 miles from Marsworth.

Location: northbound between the A509 and the junction with the A422 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 13 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.71 miles from Marsworth.

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: 12.49 miles from Marsworth.

Location: northbound between the A422 and the junction with the A508 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 13 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.97 miles from Marsworth.

Location: northbound entry slip from the A421 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 28 April 2026 to 2 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.8 miles from Marsworth.

Location: southbound exit slip at junction J14 (Milton Keynes) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.99 miles from Marsworth.

Location: southbound exit slip at Newport Pagnell Services.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.81 miles from Marsworth.

Location: southbound entry slip at Newport Pagnell Services.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 11 May 2026 to 16 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.68 miles from Marsworth.

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 28 April 2026 to 2 May 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.66 miles from Marsworth.

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 28 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 5 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: 12.57 miles from Marsworth.

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 28 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 5 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: 13.05 miles from Marsworth.

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 28 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 5 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: 11.32 miles from Marsworth.

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 28 April 2026 to 1 May 2026.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 5 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: 10.67 miles from Marsworth.
