The 1962 Vallès floods took place on 25 September 1962, mainly in the comarca of Vallès Occidental and to a less extent in Vallès Oriental and Barcelonès. The flood was caused by a cold drop (gota freda) with heavy rain, overflowing the Llobregat and Besòs rivers. The official death toll was 617, but estimates imply between 800 and 1000 deaths.
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