Conwy Valley line reopens following recent storm damage

The Conwy Valley line reopened to passengers on, Monday 13 November, after Network Rail engineers carried out extensive repairs following recent storm damage.

The line closed on Friday 20 October following damage reported in the Blaenau Ffestiniog tunnel, the longest of its kind in the UK. This October saw more than average rain fall in Blaenau Ffestiniog, causing more water to enter the tunnel than usual and damaging a structural pillar inside.

Due to the extremely hard rock, natural features and natural water courses through the tunnel walls, Network Rail tunnel and mining specialists were drafted in for the repair work.

Network Rail engineers and contract partners AMCO installed scaffolding within the tunnel to hold an estimated 28 tonnes of rock whilst the damaged pillar was dismantled and rebuilt.

Essential repair work was also necessary on other parts of the line, near Glan Conwy and the Bertheos and Roman Bridge Tunnels.

Our engineers worked 24/7 to repair the Blaenau Ffestiniog tunnel after damage caused by recent storms.


The Conwy Valley line is a vital link for local people and important for economic growth in the area, so we worked hard to reopen the railway as soon as it was safe to do so.


We worked closely with Arriva Trains Wales to keep passengers moving with rail replacement buses during the closure, and I would like to thank passengers for their patience while this essential repair work took place.

Chris Howchin, route programme manager for Network Rail in Wales and the Borders

Find out more

Wales route

Delays explained: Flooding

Weather resilience and climate change

Our seasonal track treatment and weather support machines