Nuclear waste removal under way at silo

Sellafield staff have removed 70 tonnes of waste from its silos

Seventy tonnes of radioactive waste have been removed from a nuclear site's most hazardous building.

Teams at Sellafield in Cumbria have removed the waste from the Magnox Swarf Storage Silos with the company saying it has placed it into safe storage.

The work began in 2022 after two decades of preparation, because when the building was constructed in the 1960s no-one had considered how the waste would be removed.

Sellafield's head of legacy silos Phil Reeve said so much waste had been removed that a 7m (23ft) crater had been dug in the middle of the pile.

However, the crater presents a risk of the waste around the edges collapsing inwards.

To fix the issue, Sellafield has created its own version of a garden rake - a 1.4 tonne machine which uses its stainless steel arms to pull the nuclear waste into the centre.

"It's a big moment to see it successfully deployed in an active environment for the first time," said Mr Reeve.

"It allows us to crack on with confidence."

A rake-like machine has been used to smooth out the waste

Because the removal of the waste had not been planned when the building was opened, engineers had to retrofit an exit route for it.

This involved assembling huge retrieval machines on top of the building's 22 waste compartments.

One machine is currently up and running with another two set to start soon.

But while work is well under way, the Sellafield team still has about 10,000 tonnes of waste to remove.