Description: A55 : Westbound : J18 Llandudno Junction to J17 Conwy Morfa : Tunnel closed : Contraflow via Eastbound Tunnel : 17/03/26-18/03/26 1900-0700 :, Start time: 17/03/2026 19:00 , End Date: 18/03/2026 7:00, Severity: Road closure, Source: Welsh Government, Last updated: 14/03/2026 8:52
Nearest town: 15.69 miles from St Asaph (Llanelwy).

Location: southbound exit slip at junction J4 (Heswall) .
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 19:00 on 14 March 2026 to 04:00 on 15 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.75 miles from St Asaph (Llanelwy).

Location: northbound exit slip at junction J4 (Heswall) .
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 19:00 on 14 March 2026 to 04:00 on 15 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 18.9 miles from St Asaph (Llanelwy).

Location: northbound between junctions J5 (Bebington) and J4 (Heswall) .
Lane Closures : Lane one will be closed.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 09:30 on 21 March 2026 to 15:00 on 21 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 18.97 miles from St Asaph (Llanelwy).

Location: southbound.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 21:00 on 20 March 2026 to 05:00 on 21 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 19.15 miles from St Asaph (Llanelwy).

Location: northbound between junctions J4 (Heswall) and J3 (Tranmere) .
Lane Closures : Lane one will be closed.
Due to: Litter clearance is planned.
Status : Pending.
Schedule : From 09:30 on 20 March 2026 to 15:30 on 20 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.77 miles from St Asaph (Llanelwy).

Location: northbound between junctions J4 (Heswall) and J3 (Tranmere) .
Lane Closures : Lane one will be closed.
Due to: Barrier repairs are planned.
Status : Pending.
Schedule : From 08:00 on 18 March 2026 to 17:00 on 18 March 2026.
Lanes Closed : There will be one of three lanes closed.
Nearest town: 17.93 miles from St Asaph (Llanelwy).

Location: southbound between junctions J4 (Heswall) and J5 (Bebington) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.96 miles from St Asaph (Llanelwy).

Location: southbound between junctions J3 (Tranmere) and J4 (Heswall) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.84 miles from St Asaph (Llanelwy).

Location: northbound between junctions J5 (Bebington) and J4 (Heswall) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 20 March 2026 to 06:00 on 21 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 19.11 miles from St Asaph (Llanelwy).

Location: southbound between junctions J3 (Tranmere) and J4 (Heswall) .
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 17 March 2026 to 19 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.44 miles from St Asaph (Llanelwy).

Location: northbound between junctions J5 (Bebington) and J4 (Heswall) .
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 17 March 2026 to 19 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.98 miles from St Asaph (Llanelwy).

Location: southbound entry slip at junction J4 (Heswall) .
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 17 March 2026 to 19 March 2026.
Lanes Closed : All lanes will be closed.
Nearest town: 18.88 miles from St Asaph (Llanelwy).

Location: southbound between junctions J2 (West Kirby) and J3 (Tranmere) .
Lane Closures : Lane one will be closed.
Due to: Roadworks 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 three lanes closed.
Nearest town: 18 miles from St Asaph (Llanelwy).

Location: southbound at junction J2 (West Kirby) .
Lane Closures : Lane one will be closed.
Due to: Roadworks 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: 18.11 miles from St Asaph (Llanelwy).

Location: northbound between junctions J3 (Tranmere) and J2 (West Kirby) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 16 March 2026 to 06:00 on 17 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 17.77 miles from St Asaph (Llanelwy).

Location: northbound between junctions J4 (Heswall) and J3 (Tranmere) .
Lane Closures : Lanes 1 and 2 will be closed.
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 20:00 on 19 March 2026 to 06:00 on 20 March 2026.
Lanes Closed : There will be two of three lanes closed.
Nearest town: 18.15 miles from St Asaph (Llanelwy).

Location: southbound at junction J4 (Heswall) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:00 on 16 March 2026 to 16:00 on 16 March 2026.
Nearest town: 18.78 miles from St Asaph (Llanelwy).

Location: northbound at junction J4 (Heswall) .
Due to: Roadworks are planned.
Status : Pending.
Schedule : From 09:00 on 16 March 2026 to 16:00 on 16 March 2026.
Nearest town: 18.89 miles from St Asaph (Llanelwy).

Location: northbound.
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 26 March 2026 to 06:00 on 27 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.26 miles from St Asaph (Llanelwy).

Location: southbound.
Lane Closures : Lane two will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 25 March 2026 to 06:00 on 26 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.33 miles from St Asaph (Llanelwy).

Location: northbound.
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 24 March 2026 to 06:00 on 25 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.26 miles from St Asaph (Llanelwy).

Location: eastbound.
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 26 March 2026 to 06:00 on 27 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.33 miles from St Asaph (Llanelwy).

Location: eastbound.
Lane Closures : Lane one will be closed.
Due to: Emergency roadworks are planned.
Status : Pending.
Schedule : From 21:00 on 24 March 2026 to 06:00 on 25 March 2026.
Lanes Closed : There will be one of two lanes closed.
Nearest town: 19.33 miles from St Asaph (Llanelwy).
