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: 3.99 miles from Dauntsey Lock.

Location: westbound between junctions J17 (Chippenham) and J18 (Bath) .
Lane Closures : Lane one is closed.
Due to: Road repairs.
Period : expect disruption until 05:00 on 16 June 2026.
Lanes Closed : There is one of three lanes closed.
Nearest town: 5.6 miles from Dauntsey Lock.

Location: eastbound between junctions J16 (Swindon) and J15 (Swindon) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 21:00 on 19 June 2026 to 06:00 on 20 June 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 7.12 miles from Dauntsey Lock.

Location: eastbound entry slip at junction J16 (Swindon) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Barrier repairs 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: 7.25 miles from Dauntsey Lock.

Location: westbound between junctions J17 (Chippenham) and J18 (Bath) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : Expect disruption everyday between 08:00 and 16:00 from 22 June 2026 to 26 June 2026.
Nearest town: 7.65 miles from Dauntsey Lock.

Location: westbound between junctions J16 (Swindon) and J17 (Chippenham) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:00 on 18 June 2026 to 16:00 on 18 June 2026.
Nearest town: 4.97 miles from Dauntsey Lock.

Location: southbound between the junctions with the A417 and the A361 .
Lane Closures : Lane one will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 18 June 2026 to 06:00 on 19 June 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 11.21 miles from Dauntsey Lock.
