Trawsfynydd nuclear power station flasks were transported to Trawsfynydd on a section of the former Bala to Blaenau Ffestiniog railway that had been closed in January 1961. A single track was restored northwards with an entirely new line through the centre of Blaenau Ffestiniog that connected to the Conwy Valley branch. In 1963-4 a "Goliath" gantry crane was installed over sidings about east of the power station. Beginning on 20 April 1964, nuclear flasks could be transported by rail between destinations such as Sellafield in Cumbria. The last regular departure was on 8 August 1995. The last train to carry nuclear material from Trawsfynydd
Hartlepool Nuclear Power Station Dungeness, the Central Electricity Generating Board (CEGB) proposed their third AGR station in 1967 to be situated on the edge of the Durham coalfield, near the seaside resort of Seaton Carew. The proposal came at a time when the CEGB's move toward alternative fuels to coal, threatened the coal industry's existence. Despite this, and a short ministerial delay, the plans for the Seaton Carew station (which became known as Hartlepool nuclear power station) went ahead. Because the construction of the station was given the go ahead, the National Coal Board were not able to get the CEGB behind the plans