Site Name: Trawsfynydd

Trawsfynydd is located on a 15.4 hectare site in Snowdonia National Park, North Wales, Trawsfynydd was the first inland civil Magnox nuclear station and drew its cooling water from Llyn (lake) Trawsfynydd.

The Central Electricity Generating Board was keen to recognise that Trawsfynydd was a Welsh power station, so a large, pebble ‘mosaic’ depicting a Welsh dragon forms the paving of the central courtyard which is now listed on the ‘Register of Historic Parks and Gardens in Wales’.

Trawsfynydd was the first Magnox site to recover radioactive waste from all its waste streams. Wet waste retrievals completed in 2018, followed by bulk fuel element debris retrievals in 2022.

Trawsfynydd is now the lead and learn site for Reactor Dismantling within Magnox’s Rolling Programme of Decommissioning.