1941 Porto Alegre floods
In May 1941, the waters surrounding the city of Porto Alegre, Brazil, reached a level of 4.76 meters (16 feet; 190 inches) in height and later flooded the Porto Alegre Public Market, Rua da Praia, and the city center. The flood destroyed a large part of the Riacho Railway, which connected the center with the neighborhoods in the southern city. It led to the canalization of Arroio Dilúvio, which had been started in 1939, by the city government and the federal government.