Rio Guarapiranga

Rio Guarapiranga
Aerial view of the confluence of the Rio Guarapiranga and Rio Grande to the Rio Pinheiros with the Guarapiranga reservoir in the background.
Data
location	São Paulo , Brazil
River system	Río de la Plata
Drain over	Pinheiros  → Tietê  → Rio Paraná  → Río de la Plata  → Atlantic
confluence	with the Rio Grande to the Rio Pinheiros Coordinates: 23 ° 39 ′ 25 ″  S , 46 ° 43 ′ 12 ″  W 23 ° 39 ′ 25 ″  S , 46 ° 43 ′ 12 ″  W.
Reservoirs flowed through	Guarapiranga reservoir

The Rio Guarapiranga is a river in the south of the Brazilian metropolis São Paulo in the state of the same name . Together with the Rio Grande it forms the Rio Pinheiros , a tributary of the Rio Tietê . Shortly before the confluence of the two rivers, the Rio Guarapiranga is dammed into the Guarapiranga Reservoir ( Represa de Guarapiranga ), one of the large drinking water reservoirs in the south of São Paulo.

On the lower reaches of the river there are some metal factories as well as residential areas of the lower middle class and the lower class.