Tietê River

Template: Infobox River / Obsolete

The Rio Tietê is a left, 1130 km long tributary of the Paraná in Brazil ( South America).

It rises at Salesópolis in the Serra do Mar, just 22 km from the Atlantic Ocean and flows through the state of São Paulo to the west including inter alia by the large reservoirs Barra Bonita, Promissão and Três Irmãos. Im also big Jupiá Reservoir it flows into the Paraná.

When flowing through São Paulo, the river is unexplained, inter alia, Ammonia and phosphorus - containing industrial and municipal effluents seriously polluted, fish can not live in oxygen-poor water. The sludge is contaminated with bacteria strong and must be dredged to the river navigable to halten.Die cleanup of the river and its banks in São Paulo has long been a mammoth project of the city and the provincial government. By contrast, the problems caused by river regulation and lack of retention basins severe flooding of the city during heavy rainfalls were successfully eliminated.