The Mox nuclear fuel plant at Sellafield will be closed on Wednesday afternoon, with the loss of about 600 jobs.
The closure is a consequence of the Fukushima incident in Japan, in March.
Workers at the plant were told on Wednesday morning that there was "considerable scope" for them to be re-employed in other parts of the Sellafield complex.
It will take several months for the plant to close fully.
The West Cumbrian mixed-oxide fuel plant has cost the taxpayer £1.4bn since it (…)