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A55Chester to Holyhead · 87 mi

A55

No full closures on the A55 tonight, but 2 lane or slip road closures. For live incidents see A55 traffic.

The short answer

Is the A55 closed?

Updated at 08:55

Tonight

Is the A55 closed tonight?

The A55 stays open tonight, but 2 lane or slip road closures are planned, so expect narrower lanes or a shut slip at those junctions.

This weekend

Is the A55 closed this weekend?

No. Nothing is planned to close on the A55 this weekend.

Next 18 hours

A55 closures tonight

27/10/2026 19:00

A55 : Both directions :J12 Tal y Bont to J14 Madryn Interchange - eastbound Lane 1. (incl staggered closures on all slips at J14 and J13) 27/10/26-28/10/26 1900-0600 :

· Traffic Wales

27/10/2026 19:00

Penmaenbach Tunnel, Closed, Contraflow via Headland, Width limit 3.2m, 27/10/26-28/10/26 1900-0700 :

Penmaenbach Tunnel · Traffic Wales

Friday evening to Monday morning

A55 closures this weekend

No closures planned on the A55 this weekend.

Next 2 weeks

Planned later

28/10/2026 19:00

J12 Tal y Bont to J11 Llys y Gwynt - westbound / eastbound – Lane 1 (incl staggered closures on all slips at J11 and J12) 28/10/26-30/10/26 1900-0600 :

J12 Tal y Bont to J11 Llys y Gwynt - westbound / eastbound – Lane 1 (incl staggered closures on all slips at J11 and J12) 28/10/26-30/10/26 1900-0600 : · Traffic Wales

Traffic information from Traffic Wales, plus National Highways’ Transport Data Feeds where they cover the road.

About this road

The A55 at a glance

The A55 is the North Wales Expressway, running the coast from Chester past Colwyn Bay and Bangor to the Holyhead ferries. The Britannia Bridge onto Anglesey closes to high-sided vehicles in strong winds, and the Conwy and Penmaenbach tunnels have regular overnight maintenance. Data comes from Traffic Wales and refreshes every 5 minutes.

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