Manod railway station goods transported were nuclear fuel rods carried in nuclear flasks to and from Calder Hall in Cumbria (later known as Sellafield). The line was also used during the late 1980s for freight traffic to a siding at serving the explosives factory in Penrhyndeudraeth. Passenger trains briefly returned to the line in 1989, passing through to a temporary platform at . These trains ran for one summer in an attempt to encourage tourism at the power station. Few people used the service to visit the power station, most riders travelled "for the ride", so the following year tourist trains drove to
Oldbury Nuclear Power Station an urban area twice the size of Bristol. Reactor 1 went critical on 18 September 1967 and first generated electricity on 9 November 1967, Reactor 2 started generating electricity in April 1968. The construction was undertaken by a consortium known as The Nuclear Power Group ('TNPG'). The reactors were supplied by TNPG and the turbines by AEI and C. A. Parsons & Co. The main civil engineering contractor was Sir Robert McAlpine. Construction on site began in 1961. Oldbury was the first nuclear power station in the UK to use prestressed concrete pressure vessels, earlier Magnox reactors having used steel