Editing Terrassa (section)

=== Catastrophes ===
{{See also|1962 Vallés floods}}[[File:Flood 1962.jpg|alt= Terrassa Flood 1962|thumb|Results of the 1962 flood in Terrassa the day after. Picture obtained in the Tobella's archive.]]
On 25 September 1962, after a long dry summer, between 212 and 252 litres of rain per square metre fell in three hours. It caused the rivers [[Llobregat]] and [[Besòs (river)|Besòs]] and their tributaries to overflow, creating a water avenue that caused 700 victims and heavy material losses.{{citation needed|date=August 2022}}

The [[Vallès Occidental]] ''[[Comarques of Catalonia|comarca]]'' was the most damaged. In particularly Terrassa, with 327 victims. The reason of these numbers was that building was permitted around two dry streams used to bring rain water to the [[Llobregat]] river. They met in a wedge shape and were not properly [[Channelized (river)|channelized]]. When the streams overflowed it created what was called "the dead triangle", with more than a hundred victims in the Ègara neighbourhood alone.<ref>{{Cite web|url=https://recordsdeterrassa.wordpress.com/riuades-1962/|title=Riuades 1962|date=4 March 2012|language=ca-ES|access-date=13 July 2016|archive-date=16 March 2016|archive-url=https://web.archive.org/web/20160316223829/https://recordsdeterrassa.wordpress.com/riuades-1962/|url-status=live}}</ref>