Location: southbound between the junctions with the A360 and the A345 .
Due to: Congestion.
Normal traffic conditions are expected between 19:15 and 19:30 on 14 March 2026.
Nearest town: 4.45 miles from Porton.

Location: northbound between the junctions with the A27 and the A338 .
Due to: Congestion.
Normal traffic conditions are expected between 18:00 and 18:15 on 14 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 4.56 miles from Porton.

Location: southbound between the junctions with the A360 and the A345 .
Due to: Congestion.
Normal traffic conditions are expected between 17:30 and 17:45 on 14 March 2026.
Delay : There are currently delays of 10 minutes against expected traffic.
Nearest town: 4.45 miles from Porton.

Location: southbound entry slip from the A303 .
Due to: Roadworks.
Period : from 20:26 on 14 March 2026 to 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.04 miles from Porton.

Location: eastbound exit slip to the A343 .
Due to: Roadworks.
Period : from 20:53 on 13 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.04 miles from Porton.

Location: southbound between the junctions with the A3094 and the A360 .
Due to: Emergency roadworks.
Period : expect disruption until 23:59 on 19 March 2026.
Nearest town: 5.17 miles from Porton.

Location: northbound between the junctions with the A360 and the A3094 .
Due to: Emergency roadworks.
Period : expect disruption until 23:59 on 19 March 2026.
Nearest town: 5.14 miles from Porton.

Location: northbound between the A30 West and the junction with the A303 .
Due to: Roadworks scheme.
Period : from 20:02 on 14 March 2026 to 06:00 on 26 March 2026.
Nearest town: 10.44 miles from Porton.

Location: southbound between the A350 South and the junction with the A303 .
Due to: Roadworks scheme.
Period : from 20:02 on 14 March 2026 to 06:00 on 26 March 2026.
Nearest town: 11.59 miles from Porton.

Location: westbound between the A360 and the junction with the A36 .
Due to: Roadworks scheme.
Period : from 20:02 on 14 March 2026 to 06:00 on 26 March 2026.
Nearest town: 10.83 miles from Porton.

Location: eastbound entry slip from the A338 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 19.05 miles from Porton.

Location: eastbound.
Due to: Roadworks.
Period : expect disruption until 06:00 on 16 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.07 miles from Porton.

Location: eastbound between the A342 and the junction with the A3057 .
Due to: Roadworks scheme.
Period : from 20:50 on 13 March 2026 to 06:00 on 16 March 2026.
Nearest town: 11.02 miles from Porton.

Location: eastbound between the A342 and the junction with the A3057 .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 16 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 11.02 miles from Porton.

Location: westbound entry slip from the A343 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 16 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 10.89 miles from Porton.

Location: westbound entry slip from the A343 .
Due to: Roadworks scheme.
Period : from 21:07 on 13 March 2026 to 06:00 on 16 March 2026.
Nearest town: 10.89 miles from Porton.

Location: eastbound between junctions J1 (Cadnam) and J2 (Salisbury) .
Due to: Roadworks scheme.
Period : from 20:07 on 13 March 2026 to 06:00 on 2 April 2026.
Nearest town: 15.05 miles from Porton.

Location: northbound between the junctions with the A30 East and the A345 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:00 on 16 March 2026 to 15:00 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 4.17 miles from Porton.

Location: southbound between the junctions with the A3094 and the A360 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 13 April 2026.
Nearest town: 4.9 miles from Porton.

Location: northbound between the junctions with the A360 and the A3094 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 13 April 2026.
Nearest town: 4.79 miles from Porton.

Location: southbound entry slip from the A33 .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 31 December 2027.
Lanes Closed : There is one of two lanes closed.
Nearest town: 19.01 miles from Porton.

Location: northbound between the A30 West and the junction with the A350 South.
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 25 March 2026.
Nearest town: 10.44 miles from Porton.

Location: northbound between the junctions with the A30 West and the A303 .
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 20 March 2026 to 25 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 10.44 miles from Porton.

Location: northbound entry slip from the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 20 March 2026 to 22 March 2026.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 23 March 2026 to 25 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.04 miles from Porton.

Location: northbound between the A30 West and the junction with the A350 South.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 20 March 2026 to 22 March 2026.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 23 March 2026 to 25 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.81 miles from Porton.

Location: northbound exit slip to the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 20 March 2026 to 22 March 2026.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 23 March 2026 to 25 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.25 miles from Porton.

Location: The junction of the A36 and the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.29 miles from Porton.

Location: southbound between the junctions with the A350 South and the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 20 March 2026 to 22 March 2026.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 23 March 2026 to 25 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.84 miles from Porton.

Location: eastbound entry slip from the A36 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 20 March 2026 to 22 March 2026.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Schedule : Expect disruption everyday between 20:30 and 06:00 from 23 March 2026 to 25 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.29 miles from Porton.

Location: eastbound exit slip to the A36 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.32 miles from Porton.

Location: eastbound between the A350 and the junction with the A36 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:30 on 20 March 2026 to 06:00 on 25 March 2026.
Nearest town: 12.33 miles from Porton.

Location: eastbound between the A350 and the junction with the A36 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 22 March 2026 to 06:00 on 23 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 12.33 miles from Porton.

Location: northbound between the A3090 and the junction with the A27 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Schedule : From 20:00 on 23 March 2026 to 06:00 on 24 March 2026.
Nearest town: 11.7 miles from Porton.

Location: southbound between the A27 and the junction with the A3090 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Schedule : From 20:00 on 23 March 2026 to 06:00 on 24 March 2026.
Nearest town: 11.59 miles from Porton.

Location: eastbound between the A338 South and the junction with the A338 North.
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of four lanes closed.
Nearest town: 19.66 miles from Porton.

Location: westbound between the M27 and the junction with the A338 North.
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.04 miles from Porton.

Location: eastbound at the junction with the A338 North.
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.21 miles from Porton.

Location: eastbound at the junction with the A338 South.
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.86 miles from Porton.

Location: westbound between the junctions with the A338 North and the A338 South.
Lane Closures : Lane two will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 19.22 miles from Porton.

Location: southbound between the junctions with the A345 and the A30 East.
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 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 4.18 miles from Porton.

Location: westbound entry slip from the A343 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 18 March 2026 to 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 10.89 miles from Porton.

Location: westbound between the A3057 and the junction with the A342 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 18 March 2026 to 21 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.46 miles from Porton.

Location: westbound between the A34 and the junction with the A3093 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are 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 two lanes closed.
Nearest town: 16.47 miles from Porton.

Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 April 2026 to 06:00 on 8 April 2026.
Schedule : From 21:00 on 10 April 2026 to 06:00 on 11 April 2026.
Schedule : From 21:00 on 13 April 2026 to 06:00 on 14 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.7 miles from Porton.' data-nearesttown='WEST END'>
Location: eastbound between junctions J5 (S'ton Airport) and J7 (Hedge End) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 7 April 2026 to 06:00 on 8 April 2026.
Schedule : From 21:00 on 10 April 2026 to 06:00 on 11 April 2026.
Schedule : From 21:00 on 13 April 2026 to 06:00 on 14 April 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.7 miles from Porton.

Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 26 March 2026 to 28 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.64 miles from Porton.' data-nearesttown='WEST END'>
Location: westbound entry slip at junction J5 (S'ton Airport) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 26 March 2026 to 28 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.64 miles from Porton.

Location: eastbound between the A3093 and the junction with the A34 .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs 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: 14.23 miles from Porton.

Location: eastbound.
Due to: Barrier repairs 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: 14.66 miles from Porton.

Location: northbound exit slip to the A33 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 March 2026 to 20 March 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 12 May 2026 to 17 May 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 May 2026 to 29 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.91 miles from Porton.

Location: eastbound between junctions J10 (Winchester) and J9 (Winchester) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.25 miles from Porton.

Location: westbound exit slip at junction J9 (Winchester) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 28 March 2026 to 06:00 on 29 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.26 miles from Porton.

Location: eastbound exit slip at junction J9 (Winchester) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.36 miles from Porton.

Location: southbound between the A272 and the junction with the M3 .
Lane Closures : Lane two will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 11 May 2026 to 06:00 on 12 May 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.21 miles from Porton.

Location: southbound entry slip from the A33 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 May 2026 to 22 May 2026.
Schedule : From 21:00 on 26 May 2026 to 06:00 on 27 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.01 miles from Porton.

Location: southbound between the A272 and the junction with the M3 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 May 2026 to 22 May 2026.
Schedule : From 21:00 on 26 May 2026 to 06:00 on 27 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.87 miles from Porton.

Location: southbound between the A272 and the junction with the M3 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 28 March 2026 to 06:00 on 29 March 2026.
Schedule : From 20:00 on 29 March 2026 to 06:00 on 30 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.7 miles from Porton.

Location: northbound between the M3 and the junction with the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 March 2026 to 20 March 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 12 May 2026 to 17 May 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 May 2026 to 29 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.25 miles from Porton.

Location: northbound exit slip to the A272 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 March 2026 to 20 March 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 12 May 2026 to 17 May 2026.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 27 May 2026 to 29 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.09 miles from Porton.

Location: southbound entry slip from the A272 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 17 May 2026 to 22 May 2026.
Schedule : From 21:00 on 26 May 2026 to 06:00 on 27 May 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.94 miles from Porton.

Location: eastbound at the junction with the A345 .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 10:00 on 18 March 2026 to 14:00 on 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 4.4 miles from Porton.

Location: westbound between the junctions with the A338 and the A345 .
Lane Closures : Lane one will be closed.
Due to: Emergency barrier repairs are planned.
Status : Pending.
Schedule : From 10:00 on 18 March 2026 to 14:00 on 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 4.09 miles from Porton.

Location: westbound entry slip from the A3057 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 17 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.85 miles from Porton.

Location: westbound entry slip from the A3057 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 17 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.71 miles from Porton.

Location: westbound exit slip to the A3057 .
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : From 21:30 on 17 March 2026 to 06:00 on 18 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 11.81 miles from Porton.

Location: eastbound between the junctions with the A338 and the A342 .
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 17 March 2026 to 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 6.17 miles from Porton.

Location: westbound between the junctions with the A342 and the A338 .
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 17 March 2026 to 19 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 6.76 miles from Porton.

Location: eastbound between the junctions with the A360 and the A345 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Nearest town: 6.38 miles from Porton.

Location: westbound between the junctions with the A345 and the A360 .
Due to: Road repairs are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Nearest town: 6.28 miles from Porton.

Location: northbound between the A33 and the junction with the A272 .
Lane Closures : Lane one will be closed.
Due to: Horticultural works are 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: 17.6 miles from Porton.

Location: northbound exit slip to the A272 .
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.09 miles from Porton.

Location: southbound between the junctions with the A343 and the A303 .
Lane Closures : Lane one will be closed.
Due to: Roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 16 March 2026 to 18 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.91 miles from Porton.

Location: westbound between the A342 and the junction with the A338 .
Lane Closures : Lane one will be closed.
Due to: Horticultural works are planned.
Status : Pending.
Schedule : From 20:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 9.05 miles from Porton.

Location: westbound.
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 : All lanes will be closed.
Nearest town: 19.93 miles from Porton.

Location: westbound exit slip to the A338 .
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: 19.77 miles from Porton.

Location: southbound between the junctions with the A350 South and the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 08:00 on 16 March 2026 to 18:00 on 17 March 2026.
Nearest town: 16.15 miles from Porton.

Location: northbound between the junctions with the A303 and the A350 South.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 08:00 on 16 March 2026 to 18:00 on 17 March 2026.
Nearest town: 16.13 miles from Porton.

Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 7 April 2026 to 06:00 on 18 April 2026.
Nearest town: 19.7 miles from Porton.' data-nearesttown='WEST END'>
Location: eastbound between junctions J5 (S'ton Airport) and J7 (Hedge End) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 7 April 2026 to 06:00 on 18 April 2026.
Nearest town: 19.7 miles from Porton.

Location: northbound entry slip from the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.31 miles from Porton.

Location: northbound between the A272 and the junction with the A343 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 16.66 miles from Porton.

Location: northbound exit slip to the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 15 March 2026 to 06:00 on 16 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.32 miles from Porton.

Location: westbound entry slip from the A36 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.25 miles from Porton.

Location: The A36 northbound entry slip from the A303 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.08 miles from Porton.

Location: northbound entry slip from the A303 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.04 miles from Porton.

Location: northbound between the A30 West and the junction with the A303 .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 10.44 miles from Porton.

Location: southbound exit slip to the A303 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.1 miles from Porton.

Location: southbound between the A350 South and the junction with the A303 .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 11.59 miles from Porton.

Location: northbound exit slip to the A303 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 10.93 miles from Porton.

Location: westbound between the A360 and the junction with the A36 .
Lane Closures : Lane one is closed.
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : There is one of two lanes closed.
Nearest town: 10.83 miles from Porton.

Location: westbound exit slip to the A36 .
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.28 miles from Porton.

Location: westbound.
Due to: Roadworks.
Period : expect disruption until 06:00 on 15 March 2026.
Lanes Closed : All lanes are closed.
Nearest town: 11.27 miles from Porton.

Location: westbound exit slip at junction J14 (Southampton) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 19 March 2026 to 21 March 2026.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.59 miles from Porton.

Location: westbound between junctions J3 (Southampton) and J2 (Salisbury) .
Lane Closures : Lanes 1, 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Schedule : From 21:00 on 30 March 2026 to 06:00 on 31 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.54 miles from Porton.

Location: westbound entry slip at junction J3 (Southampton) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Schedule : From 21:00 on 30 March 2026 to 06:00 on 31 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 16.5 miles from Porton.

Location: westbound exit slip at junction J2 (Salisbury) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 24 March 2026.
Schedule : From 21:00 on 30 March 2026 to 06:00 on 31 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 15.16 miles from Porton.

Location: northbound between the M3 and the junction with the A303 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 17 March 2026 to 06:00 on 29 May 2026.
Nearest town: 19.25 miles from Porton.

Location: eastbound between junctions J1 (Cadnam) and J2 (Salisbury) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 31 March 2026 to 2 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 15.05 miles from Porton.

Location: westbound between junctions J2 (Salisbury) and J1 (Cadnam) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 16 March 2026 to 06:00 on 2 April 2026.
Nearest town: 14.81 miles from Porton.

Location: westbound between junctions J2 (Salisbury) and J1 (Cadnam) .
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 21 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 14.82 miles from Porton.

Location: westbound between junctions J2 (Salisbury) and J1 (Cadnam) .
Lane Closures : Lanes 2 and 3 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 20:00 and 06:00 from 31 March 2026 to 2 April 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 14.81 miles from Porton.

Location: southbound between the junctions with the A360 and the A345 .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:00 on 16 March 2026 to 15:00 on 16 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 4.52 miles from Porton.

Location: westbound between the A343 and the junction with the A342 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 18 March 2026 to 06:00 on 21 March 2026.
Nearest town: 10.89 miles from Porton.

Location: westbound between junctions J3 (Southampton) and J2 (Salisbury) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 23 March 2026 to 06:00 on 31 March 2026.
Nearest town: 16.54 miles from Porton.

Location: westbound entry slip from the A34 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 23 March 2026.
Nearest town: 17.4 miles from Porton.

Location: westbound entry slip from the A34 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 March 2026 to 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.4 miles from Porton.

Location: southbound exit slip to the A303 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 March 2026 to 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.29 miles from Porton.

Location: westbound exit slip to the A34 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 March 2026 to 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.46 miles from Porton.

Location: westbound exit slip to the A34 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 March 2026 to 23 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 17.53 miles from Porton.

Location: southbound between the A343 and the junction with the A272 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 06:00 on 23 March 2026.
Nearest town: 17.61 miles from Porton.

Location: southbound between the A343 and the junction with the A272 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 20 March 2026 to 23 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 17.61 miles from Porton.

Location: southbound.
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 21:00 and 06:00 from 23 March 2026 to 28 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.75 miles from Porton.

Location: eastbound exit slip at junction J9 (Winchester) .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 21:00 on 16 March 2026 to 06:00 on 17 March 2026.
Nearest town: 19.36 miles from Porton.

Location: southbound between the junctions with the A3094 and the A360 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 06:00 on 13 April 2026 to 18:00 on 10 May 2026.
Nearest town: 4.9 miles from Porton.

Location: northbound between the junctions with the A360 and the A3094 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 06:00 on 13 April 2026 to 18:00 on 10 May 2026.
Nearest town: 4.79 miles from Porton.

Location: southbound between the junctions with the A3094 and the A360 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 18:00 on 10 May 2026 to 18:00 on 29 May 2026.
Nearest town: 5.03 miles from Porton.

Location: northbound between the junctions with the A360 and the A3094 .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 18:00 on 10 May 2026 to 18:00 on 29 May 2026.
Nearest town: 4.79 miles from Porton.

Location: westbound between the junctions with the A36 and the A350 .
Lane Closures : Lane one will be closed.
Due to: Emergency roadside drains works are planned.
Status : Pending.
Schedule : Expect disruption everyday between 09:00 and 15:00 from 16 March 2026 to 19 March 2026.
Schedule : Expect disruption everyday between 09:00 and 15:00 from 23 March 2026 to 26 March 2026.
Schedule : Expect disruption everyday between 09:00 and 15:00 from 30 March 2026 to 31 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.63 miles from Porton.

Location: southbound between the A272 and the junction with the M3 .
Due to: Roadworks scheme is planned.
Status : Pending.
Schedule : From 20:00 on 28 March 2026 to 06:00 on 27 May 2026.
Nearest town: 17.3 miles from Porton.
