The cost of repairing the ancient bridge and surrounding pathways at Tarr Steps will run into thousands of pounds.
Somerset County Council and Exmoor National Park say the landmark on Exmoor has been affected by landslips, fallen trees and erosion from recent flooding.
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Somerset County Council has been fined after staff unwittingly helped a mother move her children to Australia, without the father knowing.
Staying dry with sunny spells
Dry with plenty of spring sunshine