Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : The hard shoulder is closed.
Due to: Horticultural works.
Period : expect disruption until 23:59 on 20 March 2026.
Nearest town: 19.14 miles from Cowleaze Corner.

Location: northbound between the A4183 south of Kennington and the junction with the A420 .
Due to: Roadworks scheme.
Period : from 21:00 on 9 March 2026 to 06:00 on 26 March 2026.
Nearest town: 12.88 miles from Cowleaze Corner.

Location: eastbound between junctions J17 (Chippenham) and J16 (Swindon) .
Lane Closures : The hard shoulder is closed.
Due to: Emergency barrier repairs.
Period : expect disruption until 18:00 on 31 July 2026.
Nearest town: 19.59 miles from Cowleaze Corner.

Location: northbound between the A4311 and the junction with the A417 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.16 miles from Cowleaze Corner.

Location: northbound between the A419 and the junction with the A436 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.47 miles from Cowleaze Corner.

Location: westbound between junctions J14 (Hungerford) and J15 (Swindon) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 16.15 miles from Cowleaze Corner.

Location: eastbound between junctions J14 (Hungerford) and J13 (Newbury) .
Lane Closures : Lane one will be closed.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 21:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.57 miles from Cowleaze Corner.

Location: northbound between the A361 and the junction with the A417 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.97 miles from Cowleaze Corner.

Location: southbound between the junctions with the A4185 and the M4 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 17 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.57 miles from Cowleaze Corner.

Location: northbound between the M4 and the junction with the A4185 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.17 miles from Cowleaze Corner.

Location: northbound.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.32 miles from Cowleaze Corner.

Location: northbound.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.07 miles from Cowleaze Corner.

Location: northbound.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.42 miles from Cowleaze Corner.

Location: southbound between the junctions with the A420 and the A4259 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 18 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 12.25 miles from Cowleaze Corner.

Location: northbound between the A4311 and the junction with the A417 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 18 March 2026 to 06:00 on 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.92 miles from Cowleaze Corner.

Location: southbound between the A420 and the junction with the A4259 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 19:00 on 18 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.97 miles from Cowleaze Corner.

Location: southbound between the junctions with the A4130 and the A4185 .
Lane Closures : Lane one will be closed.
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 31 March 2026 to 2 April 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 7 April 2026 to 11 April 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.43 miles from Cowleaze Corner.

Location: northbound between the junctions with the A4185 and the A4130 .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 17 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 14.72 miles from Cowleaze Corner.

Location: northbound between the junctions with the M4 and the A4185 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 27 March 2026 to 06:00 on 28 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.59 miles from Cowleaze Corner.

Location: southbound at junction J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.09 miles from Cowleaze Corner.

Location: northbound between junctions J8A (Thame) and J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.08 miles from Cowleaze Corner.

Location: northbound exit slip at junction J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.99 miles from Cowleaze Corner.

Location: southbound exit slip at junction J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.09 miles from Cowleaze Corner.

Location: southbound between junctions J10 (Northampton) and J9 (Bicester) .
Lane Closures : Lane one will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 22:15 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.32 miles from Cowleaze Corner.

Location: southbound between the A417 and the junction with the A361 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 16 March 2026 to 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.41 miles from Cowleaze Corner.

Location: northbound between the junctions with the A44 and the M40 .
Lane Closures : Lane two will be closed.
Due to: Roadside equipment maintenance is planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.37 miles from Cowleaze Corner.

Location: northbound between the A4311 and the junction with the A417 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 16 March 2026 to 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.13 miles from Cowleaze Corner.

Location: northbound between the A419 and the junction with the A436 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 16 March 2026 to 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.47 miles from Cowleaze Corner.

Location: northbound between the junctions with the A415 and the A4183 south of Kennington.
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 16 March 2026 to 28 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.72 miles from Cowleaze Corner.

Location: southbound between the A420 and the junction with the A423 north of Kennington.
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 16 March 2026 to 20 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.94 miles from Cowleaze Corner.

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 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.21 miles from Cowleaze Corner.

Location: northbound between the M4 and the junction with the A420 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 20:00 on 16 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 14.31 miles from Cowleaze Corner.

Location: southbound between the A415 and the junction with the M4 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 19 March 2026.
Nearest town: 12.96 miles from Cowleaze Corner.

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 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 12.96 miles from Cowleaze Corner.

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 16 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.19 miles from Cowleaze Corner.

Location: eastbound between junctions J16 (Swindon) and J15 (Swindon) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:00 and 16:00 from 16 March 2026 to 20 March 2026.
Schedule : From 09:00 on 23 March 2026 to 16:00 on 23 March 2026.
Nearest town: 15.52 miles from Cowleaze Corner.

Location: southbound between the A423 north of Kennington and the junction with the A4130 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:30 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.27 miles from Cowleaze Corner.

Location: southbound exit slip to the A415 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:30 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.47 miles from Cowleaze Corner.

Location: northbound between the junctions with the A415 and the A423 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 13.38 miles from Cowleaze Corner.

Location: southbound exit slip to the A4183 south of Kennington.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:30 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.04 miles from Cowleaze Corner.

Location: southbound between the A420 and the junction with the A423 north of Kennington.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:30 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 13.03 miles from Cowleaze Corner.

Location: southbound between the A423 north of Kennington and the junction with the A4130 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:30 on 25 March 2026 to 06:00 on 26 March 2026.
Nearest town: 13.27 miles from Cowleaze Corner.

Location: southbound between the A420 and the junction with the A4259 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 16 March 2026 to 20 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.81 miles from Cowleaze Corner.
