A 16th century castle in Scotland is teetering on the brink of collapse after flooding washed away a riverbank at the site.

Sky News reports that Abergeldie castle in Aberdeenshire is close to collapsing into the swollen river.

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The precarious situation follows weekend floods that swept away about 60 feet of land between the property and the river, according to the report.  The floods forced the Baron of Abergeldie and his wife to evacuate their tower house on Sunday.

The Telegraph reports that a team of engineers was expected to arrive Tuesday to see if they could secure the 450-year-old building.

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Abergeldie castle is next to the Queen’s famous Balmoral estate.