Location: southbound between junctions J11 (Luton) and J10 (Luton Airport) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road traffic collision.
Time To Clear : The event is expected to clear between 00:15 and 00:30 on 16 June 2026.
Normal traffic conditions are expected between 00:15 and 00:30 on 16 June 2026.
Lanes Closed : There are two of three lanes closed.
Nearest town: 14.74 miles from Waterside.

Location: slip road to the M40 northbound from M25 north.
Lane Closures : The hard shoulder and lane 1 are closed.
Due to: Vehicle fire.
Time To Clear : The event is expected to clear between 00:15 and 00:30 on 16 June 2026.
Normal traffic conditions are expected between 00:15 and 00:30 on 16 June 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 9.96 miles from Waterside.

Location: eastbound between junctions J10 (Reading) and J8 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1, 2 and 3 are closed.
Due to: Emergency resurfacing.
Period : from 20:42 on 15 June 2026 to 06:00 on 16 June 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 14.28 miles from Waterside.

Swakeleys Roundabout - There is a broken down car on the eastbound on slip road to the A40.
All lanes are open.
Nearest town: 10.98 miles from Waterside.

Location: eastbound at junction J4 .
Due to: Roadworks.
Period : from 22:05 on 15 June 2026 to 05:30 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 15.03 miles from Waterside.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lane three is closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 7.02 miles from Waterside.

Location: eastbound between junctions J4B (Heathrow) and J3 (Heathrow) .
Due to: Roadworks.
Period : expect disruption until 05:30 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 14.96 miles from Waterside.

Location: northbound exit slip at junction J1A (Watford) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.83 miles from Waterside.

Location: northbound between junctions J1 (Slough) and J1A (Watford) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.46 miles from Waterside.

Location: clockwise entry slip at junction J16 (M40) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.89 miles from Waterside.

Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Lane Closures : Lane three is closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 7.31 miles from Waterside.

Location: southbound exit slip to the A4 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.43 miles from Waterside.

Location: southbound between the A4130 and the junction with the A4 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.31 miles from Waterside.

Location: The A404M southbound between junctions J9B and J9A .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.43 miles from Waterside.

Location: The A404M southbound entry slip at junction J9B .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.53 miles from Waterside.

Location: eastbound entry slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.93 miles from Waterside.

Location: eastbound between junctions J6 (Slough) and J5 (Colnbrook) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 June 2026 to 05:30 on 17 June 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 13.47 miles from Waterside.

Location: westbound between the junctions with the A437 and the M40 .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 10.8 miles from Waterside.

Location: northbound entry slip at junction J1 (Slough) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.21 miles from Waterside.

Location: anticlockwise entry slip at junction J16 (M40) From M40 North.
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 23:00 on 16 June 2026 to 06:00 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 9.89 miles from Waterside.

Location: anticlockwise between junctions J20 (Hemel Hstead) and J17 (Maple Cross) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 June 2026 to 05:30 on 17 June 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 5.44 miles from Waterside.

Location: anticlockwise entry slip at junction J18 (Rickmansworth) .
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 June 2026 to 05:30 on 17 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 5.63 miles from Waterside.

Location: westbound entry slip at junction J4B (Heathrow) from the M25 anti-clockwise.
Lane Closures : The hard shoulder is closed.
Due to: Roadside Drains Works.
Period : expect disruption until 05:30 on 25 July 2026.
Nearest town: 14.33 miles from Waterside.

Location: eastbound between junctions J5 (Colnbrook) and J4B (Heathrow) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 22:00 on 16 June 2026 to 05:30 on 17 June 2026.
Lanes Closed : There will be two of five lanes closed.
Nearest town: 14.06 miles from Waterside.

Location: eastbound at junction J4B (Heathrow) .
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 22 June 2026 to 26 June 2026.
Schedule : From 23:00 on 26 June 2026 to 06:00 on 27 June 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 29 June 2026 to 3 July 2026.
Schedule : From 23:00 on 3 July 2026 to 06:00 on 4 July 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.32 miles from Waterside.

Location: eastbound between junctions J5 (Colnbrook) and J4B (Heathrow) .
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 22 June 2026 to 26 June 2026.
Schedule : From 23:00 on 26 June 2026 to 06:00 on 27 June 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 29 June 2026 to 3 July 2026.
Schedule : From 23:00 on 3 July 2026 to 06:00 on 4 July 2026.
Lanes Closed : There will be two of five lanes closed.
Nearest town: 14.2 miles from Waterside.

Location: clockwise entry slip at junction J15 (Slough) from M4 eastbound.
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 22 June 2026 to 26 June 2026.
Schedule : From 23:00 on 26 June 2026 to 06:00 on 27 June 2026.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 29 June 2026 to 3 July 2026.
Schedule : From 23:00 on 3 July 2026 to 06:00 on 4 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.31 miles from Waterside.

Location: anticlockwise between junctions J17 (Maple Cross) and J16 (M40) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 22 June 2026 to 05:00 on 23 June 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 6.56 miles from Waterside.

Location: eastbound entry slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 June 2026 to 26 June 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 29 June 2026 to 3 July 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 6 July 2026 to 10 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.93 miles from Waterside.

Location: eastbound between junctions J8 (High Wycombe) and J7 (Slough) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 22 June 2026 to 27 June 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 29 June 2026 to 4 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 July 2026 to 11 July 2026.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 13.9 miles from Waterside.

Location: eastbound at junction J8 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 22 June 2026 to 27 June 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 29 June 2026 to 4 July 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 6 July 2026 to 11 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.23 miles from Waterside.

Location: southbound between the M40 and the junction with the A4155 .
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 22 June 2026 to 25 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 8.6 miles from Waterside.

Location: northbound between the A4155 and the junction with the M40 .
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 22 June 2026 to 25 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.45 miles from Waterside.

Location: southbound exit slip at junction J10 (Luton Airport) .
Due to: Roadworks.
Period : expect disruption until 05:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.98 miles from Waterside.

Location: eastbound entry slip at junction J4 .
Lane Closures : Lane two will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 18 June 2026 to 05:00 on 19 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 15.09 miles from Waterside.

Location: northbound at junction J1A (Watford) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 08:00 and 17:00 from 22 June 2026 to 25 June 2026.
Nearest town: 9.72 miles from Waterside.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : Lane one is closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 9.02 miles from Waterside.

Location: northbound at junction J4 (High Wycombe) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 07:00 on 21 June 2026 to 23:59 on 22 June 2026.
Nearest town: 8.44 miles from Waterside.

Location: northbound at junction J4 (High Wycombe) .
Lane Closures : Lane one is closed.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 8.78 miles from Waterside.

Location: southbound at junction J4 (High Wycombe) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 17 June 2026 to 06:00 on 18 June 2026.
Nearest town: 8.87 miles from Waterside.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 17 June 2026 to 06:00 on 18 June 2026.
Nearest town: 9.33 miles from Waterside.

Location: southbound at junction J4 (High Wycombe) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 07:00 on 21 June 2026 to 23:59 on 22 June 2026.
Nearest town: 8.78 miles from Waterside.

Location: northbound between junctions J1A (Watford) and J2 (Beaconsfield) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 19:00 on 21 June 2026 to 23:59 on 26 June 2026.
Nearest town: 8.85 miles from Waterside.

Location: southbound exit slip to the A4 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 18 June 2026 to 06:00 on 19 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.43 miles from Waterside.

Location: The A404M southbound exit slip at junction J9A .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 19 June 2026 to 06:00 on 20 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.73 miles from Waterside.

Location: northbound.
Due to: Barrier repairs.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 8.67 miles from Waterside.

Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 14.41 miles from Waterside.

Location: The A404M southbound entry slip at junction J9A .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 19 June 2026 to 06:00 on 20 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.63 miles from Waterside.

Location: eastbound between junctions J6 (Slough) 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 18 June 2026 to 06:00 on 19 June 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 13.02 miles from Waterside.

Location: westbound at junction J8 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : All lanes are closed.
Nearest town: 13.97 miles from Waterside.

Location: westbound between junctions J7 (Slough) and J8 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 are closed.
Due to: Roadside Equipment Maintenance.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There are three of four lanes closed.
Nearest town: 12.96 miles from Waterside.

Location: westbound exit slip to the A412 .
Lane Closures : Lane one is closed.
Due to: Planned Roadworks.
Period : expect disruption until 05:30 on 16 June 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 10.36 miles from Waterside.

Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 22:00 on 17 June 2026 to 05:30 on 18 June 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 8.04 miles from Waterside.

Location: The A308M eastbound between the junctions with the M4 and the A308 .
Lane Closures : Lane one is closed.
Due to: Horticultural works.
Period : expect disruption until 06:00 on 16 June 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 14.01 miles from Waterside.

Location: northbound between junctions J10 (Luton Airport) and J11A .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 8 July 2026 to 11 July 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.85 miles from Waterside.

Location: southbound.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 17 June 2026 to 06:00 on 18 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 8.87 miles from Waterside.

Location: southbound exit slip at junction J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 17 June 2026 to 06:00 on 18 June 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 8.62 miles from Waterside.

Location: southbound between the M40 and the junction with the A308 .
Lane Closures : Lane two will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 19 June 2026 to 06:00 on 20 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.48 miles from Waterside.

Location: northbound between the A308 and the junction with the A4155 .
Lane Closures : Lane two will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 19 June 2026 to 06:00 on 20 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.16 miles from Waterside.

Location: anticlockwise between junctions J16 (M40) and J15 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 22:30 on 21 June 2026 to 05:30 on 22 June 2026.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 12.65 miles from Waterside.
