Location: northbound at the junction with the M40 .
Due to: Congestion.
Normal traffic conditions are expected between 10:00 and 10:15 on 4 July 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 10.05 miles from Catslip.

Location: southbound exit slip at junction J4 (High Wycombe) .
Due to: Congestion.
Normal traffic conditions are expected between 09:45 and 10:00 on 4 July 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 10 miles from Catslip.

Location: The A308M westbound between the junctions with the A308 and the M4 .
Due to: Congestion.
Normal traffic conditions are expected between 07:45 and 08:00 on 4 July 2025.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 12.55 miles from Catslip.

Location: The A308M eastbound between the junctions with the M4 and the A308 .
Due to: Congestion.
Normal traffic conditions are expected between 07:30 and 07:45 on 4 July 2025.
Nearest town: 12.54 miles from Catslip.

Location: southbound exit slip to the A4185 .
Due to: Roadworks.
Period : from 21:42 on 3 July 2025 to 06:00 on 4 July 2025.
Lanes Closed : All lanes are closed.
Nearest town: 13.02 miles from Catslip.

Location: eastbound between junctions J10 (Reading) and J8 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 11.49 miles from Catslip.

Location: westbound between junctions J12 (Reading) and J13 (Newbury) .
Lane Closures : Lane three is closed.
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 4 July 2025.
Lanes Closed : There is one of three lanes closed.
Nearest town: 13.37 miles from Catslip.

Location: northbound between the M4 and the junction with the A4185 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 4 July 2025 to 06:00 on 7 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.31 miles from Catslip.

Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 4 July 2025 to 05:30 on 5 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 10.99 miles from Catslip.

Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 4 July 2025 to 05:30 on 5 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 13.24 miles from Catslip.

Location: southbound between the A423 north of Kennington and the junction with the A415 .
Lane Closures : Lane one will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.91 miles from Catslip.

Location: southbound exit slip to the A4183 south of Kennington.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 22:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.79 miles from Catslip.

Location: eastbound between junctions J13 (Newbury) and J12 (Reading) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 11.48 miles from Catslip.

Location: eastbound between junctions J13 (Newbury) and J12 (Reading) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 13.71 miles from Catslip.

Location: northbound between the A4130 and the junction with the A4155 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 20:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.15 miles from Catslip.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 19:00 on 4 July 2025 to 23:59 on 7 July 2025.
Nearest town: 6.68 miles from Catslip.

Location: southbound entry slip at junction J3 (Loudwater) .
Due to: Road repairs.
Period : expect disruption until 05:30 on 4 July 2025.
Lanes Closed : All lanes are closed.
Nearest town: 13.06 miles from Catslip.

Location: southbound between junctions J4 (High Wycombe) and J2 (Beaconsfield) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 05:30 on 4 July 2025.
Lanes Closed : There are two of four lanes closed.
Nearest town: 13.24 miles from Catslip.

Location: southbound between junctions J4 (High Wycombe) and J3 (Loudwater) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Road repairs.
Period : expect disruption until 05:30 on 4 July 2025.
Lanes Closed : There are two of three lanes closed.
Nearest town: 10.99 miles from Catslip.

Location: southbound between the A420 and the junction with the A423 north of Kennington.
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 05:30 on 4 July 2025.
Lanes Closed : There is one of two lanes closed.
Nearest town: 18.35 miles from Catslip.

Location: northbound exit slip to the A415 .
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 4 July 2025.
Lanes Closed : All lanes are closed.
Nearest town: 15.32 miles from Catslip.

Location: northbound entry slip from the A415 .
Due to: Roadside Drains Works.
Period : expect disruption until 06:00 on 4 July 2025.
Lanes Closed : All lanes are closed.
Nearest town: 15.39 miles from Catslip.

Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 5 July 2025.
Lanes Closed : There are two of four lanes closed.
Nearest town: 11.18 miles from Catslip.

Location: westbound between junctions J8 (High Wycombe) and J10 (Reading) .
Due to: Roadworks scheme.
Period : from 20:10 on 3 July 2025 to 06:00 on 5 July 2025.
Nearest town: 11.18 miles from Catslip.

Location: westbound at junction J10 (Reading) .
Lane Closures : Lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 5 July 2025.
Lanes Closed : There are two of three lanes closed.
Nearest town: 11.13 miles from Catslip.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Barrier repairs.
Lanes Closed : There are two of three lanes closed.
Nearest town: 12.63 miles from Catslip.

Location: southbound between junctions J9 (Bicester) and J8A (Thame) .
Lane Closures : Lanes 2 and 3 are closed.
Due to: Barrier repairs.
Lanes Closed : There are two of three lanes closed.
Nearest town: 14.72 miles from Catslip.

Location: southbound.
Due to: Roadworks scheme.
Period : from 21:01 on 3 July 2025 to 06:00 on 19 July 2025.
Nearest town: 13.16 miles from Catslip.

Location: southbound between the A4185 and the junction with the M4 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 4 July 2025 to 06:00 on 5 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.3 miles from Catslip.

Location: eastbound between junctions J13 (Newbury) and J12 (Reading) .
Due to: Roadworks scheme.
Period : from 21:00 on 26 June 2025 to 06:00 on 10 October 2025.
Nearest town: 16.14 miles from Catslip.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 05:30 on 11 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.21 miles from Catslip.

Location: southbound between junctions J8A (Thame) and J4 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 06:00 on 11 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.76 miles from Catslip.

Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 05:30 on 11 July 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.42 miles from Catslip.

Location: southbound exit slip at junction J5 (High Wycombe) .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 06:00 on 11 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 7.19 miles from Catslip.

Location: northbound exit slip at junction J3 (Loudwater) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 05:30 on 11 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.21 miles from Catslip.

Location: southbound entry slip at junction J5 (High Wycombe) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 22:15 on 10 July 2025 to 06:00 on 11 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 7.22 miles from Catslip.

Location: slip road to the M40 northbound from M25 north.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 22:00 on 10 July 2025 to 05:00 on 11 July 2025.
Schedule : From 23:00 on 11 July 2025 to 05:00 on 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.92 miles from Catslip.

Location: slip road to the M40 southbound from M25 north.
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 22:00 on 10 July 2025 to 05:00 on 11 July 2025.
Schedule : From 23:00 on 11 July 2025 to 05:00 on 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.75 miles from Catslip.

Location: westbound between junctions J10 (Reading) and J11 (Basingstoke) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 10 July 2025 to 06:00 on 11 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 10.6 miles from Catslip.

Location: westbound between junctions J3 (Woking) and J4 (Guildford) .
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 9 July 2025 to 11 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 19.83 miles from Catslip.

Location: westbound at junction J3 (Woking) .
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 9 July 2025 to 11 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 19.9 miles from Catslip.

Location: westbound between junctions J3 (Woking) and J4 (Guildford) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 25 July 2025 to 06:00 on 26 July 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 19.83 miles from Catslip.

Location: westbound at junction J3 (Woking) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 25 July 2025 to 06:00 on 26 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.9 miles from Catslip.

Location: southbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.16 miles from Catslip.

Location: southbound between the A4185 and the junction with the M4 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 4 July 2025 to 06:00 on 5 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 9 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 17 July 2025.
Schedule : From 20:00 on 17 July 2025 to 06:00 on 18 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.08 miles from Catslip.

Location: westbound between junctions J3 (Woking) and J4 (Guildford) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 9 July 2025 to 06:00 on 26 July 2025.
Nearest town: 19.9 miles from Catslip.

Location: northbound between junctions J6 (Thame) and J8A (Thame) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 22:15 on 8 July 2025 to 06:00 on 9 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 7.93 miles from Catslip.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 8 July 2025 to 05:30 on 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.21 miles from Catslip.

Location: northbound between junctions J3 (Loudwater) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 9 July 2025 to 05:30 on 10 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.21 miles from Catslip.

Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 8 July 2025 to 05:30 on 9 July 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.42 miles from Catslip.

Location: northbound between junctions J2 (Beaconsfield) and J4 (High Wycombe) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 22:15 on 9 July 2025 to 05:30 on 10 July 2025.
Lanes Closed : There will be three of four lanes closed.
Nearest town: 14.42 miles from Catslip.

Location: southbound between junctions J1A (Watford) and J1 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 9 July 2025 to 06:00 on 10 July 2025.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.39 miles from Catslip.

Location: slip road to the M40 southbound from M25 south.
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 9 July 2025 to 06:00 on 10 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.67 miles from Catslip.

Location: slip road to the M40 southbound from M25 north.
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 23:00 on 9 July 2025 to 06:00 on 10 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.75 miles from Catslip.

Location: eastbound entry slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.77 miles from Catslip.

Location: eastbound exit slip at junction J7 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.84 miles from Catslip.

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 : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17 miles from Catslip.

Location: eastbound at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 16.33 miles from Catslip.

Location: eastbound between junctions J8 (High Wycombe) and J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 13.83 miles from Catslip.

Location: eastbound entry slip at junction J7 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.94 miles from Catslip.

Location: eastbound exit slip at junction J6 (Slough) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 05:00 from 9 July 2025 to 12 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.33 miles from Catslip.

Location: northbound entry slip at junction J1A (Watford) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 09:30 on 9 July 2025 to 16:00 on 9 July 2025.
Nearest town: 19.88 miles from Catslip.

Location: anticlockwise at junction J16 (M40) .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 09:30 on 9 July 2025 to 16:00 on 9 July 2025.
Nearest town: 19.69 miles from Catslip.

Location: southbound between the A308 and the junction with the A4 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 8 July 2025 to 06:00 on 9 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.27 miles from Catslip.

Location: southbound entry slip from the A4130 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 8 July 2025 to 06:00 on 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 9.23 miles from Catslip.

Location: southbound exit slip to the A4130 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 8 July 2025 to 06:00 on 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 9.06 miles from Catslip.

Location: northbound between junctions J1A (Watford) and J2 (Beaconsfield) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 4 July 2025 to 06:00 on 5 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 7 July 2025 to 9 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 10 July 2025 to 12 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 17.87 miles from Catslip.

Location: southbound between junctions J2 (Beaconsfield) and J1A (Watford) .
Lane Closures : Lanes 3 and 4 will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 4 July 2025 to 06:00 on 5 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 7 July 2025 to 9 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 10 July 2025 to 12 July 2025.
Lanes Closed : There will be two of four lanes closed.
Nearest town: 16.91 miles from Catslip.

Location: clockwise at junction J16 (M40) .
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 7 July 2025 to 9 July 2025.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 19.92 miles from Catslip.

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 7 July 2025 to 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.4 miles from Catslip.

Location: clockwise between junctions J16 (M40) and J17 (Maple Cross) .
Lane Closures : Lanes 1, 2, 3 and 4 will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 22:00 and 05:30 from 7 July 2025 to 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 19.58 miles from Catslip.

Location: northbound entry slip from the A4 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 7 July 2025 to 06:00 on 8 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 10.31 miles from Catslip.

Location: The A404M northbound exit slip at junction J9B .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 7 July 2025 to 06:00 on 8 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 10.43 miles from Catslip.

Location: eastbound entry slip at junction J11 (Basingstoke) .
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 8 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 10.8 miles from Catslip.

Location: southbound between the A4185 and the junction with the M4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 7 July 2025 to 9 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.59 miles from Catslip.

Location: southbound between the A423 north of Kennington and the junction with the A4130 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 27 September 2025.
Nearest town: 15.85 miles from Catslip.

Location: southbound between the A423 north of Kennington and the junction with the A4130 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 8 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 11 September 2025 to 13 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 September 2025 to 20 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 September 2025 to 27 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.85 miles from Catslip.

Location: southbound between the A4183 south of Kennington and the junction with the A4130 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 8 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 18 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 21 July 2025 to 26 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 July 2025 to 2 August 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.79 miles from Catslip.

Location: southbound exit slip to the A415 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 8 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 11 September 2025 to 13 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 September 2025 to 20 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 September 2025 to 27 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.39 miles from Catslip.

Location: southbound exit slip to the A415 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 8 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 18 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 21 July 2025 to 26 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 July 2025 to 2 August 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.39 miles from Catslip.

Location: southbound exit slip to the A4183 south of Kennington.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 8 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 11 September 2025 to 13 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 September 2025 to 20 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 September 2025 to 27 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 14.79 miles from Catslip.

Location: southbound between the A420 and the junction with the A423 north of Kennington.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 July 2025 to 06:00 on 8 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 11 September 2025 to 13 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 15 September 2025 to 20 September 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 22 September 2025 to 27 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.2 miles from Catslip.

Location: southbound at junction J1A (Watford) .
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 09:30 on 7 July 2025 to 15:30 on 7 July 2025.
Nearest town: 19.93 miles from Catslip.

Location: eastbound entry slip at junction J13 (Newbury) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 8 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 18 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 21 July 2025 to 26 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 July 2025 to 2 August 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 15.82 miles from Catslip.

Location: eastbound between junctions J13 (Newbury) and J12 (Reading) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 3 July 2025 to 06:00 on 4 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 8 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 18 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 21 July 2025 to 26 July 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.14 miles from Catslip.

Location: eastbound exit slip at junction J12 (Reading) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 8 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 14 July 2025 to 18 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 21 July 2025 to 26 July 2025.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 July 2025 to 2 August 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 9.37 miles from Catslip.

Location: northbound between junctions J4 (High Wycombe) and J5 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 5 July 2025.
Lanes Closed : There are two of three lanes closed.
Nearest town: 9.17 miles from Catslip.

Location: southbound between junctions J5 (High Wycombe) and J4 (High Wycombe) .
Lane Closures : The hard shoulder, lanes 1 and 2 are closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 5 July 2025.
Lanes Closed : There are two of three lanes closed.
Nearest town: 8.07 miles from Catslip.

Location: westbound between junctions J3 (Woking) and J4 (Guildford) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 8 August 2025 to 06:00 on 9 August 2025.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 19.86 miles from Catslip.

Location: southbound entry slip from the A4130 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 September 2025 to 30 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.77 miles from Catslip.

Location: southbound between the A415 and the junction with the M4 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 28 September 2025 to 06:00 on 30 September 2025.
Nearest town: 13.97 miles from Catslip.

Location: southbound between the A415 and the junction with the M4 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 September 2025 to 30 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13.97 miles from Catslip.

Location: southbound exit slip to the A4185 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 28 September 2025 to 30 September 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 13 miles from Catslip.

Location: westbound exit slip at junction J6 (Slough) .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 05:00 from 20 October 2025 to 23 October 2025.
Lanes Closed : All lanes will be closed.
Nearest town: 16.87 miles from Catslip.

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 : From 20:30 on 4 July 2025 to 06:00 on 5 July 2025.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 7 July 2025 to 12 July 2025.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 14 July 2025 to 19 July 2025.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 21 July 2025 to 26 July 2025.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 12.43 miles from Catslip.
