Río Paraná

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Río Paraná
Rio Paraná as part of the Rio de la Plata river system

Rio Paraná as part of the Rio de la Plata river system

location South America , Brazil , Paraguay , Argentina
River system Río de la Plata
Drain over Río de la Plata  → Atlantic Ocean
origin Ilha Solteira reservoir
20 ° 22 ′ 57 ″  S , 51 ° 21 ′ 59 ″  W
confluence with the Río Uruguay to the Río de la Plata Coordinates: 33 ° 56 ′ 45 ″  S , 58 ° 24 ′ 34 ″  W 33 ° 56 ′ 45 ″  S , 58 ° 24 ′ 34 ″  W

length 3200 km (with Rio Grande 4880 km)
Catchment area 2,800,000 km²
A Eo : 2,582,672 km²
17,293 m³ / s
6.7 l / (s km²)
Left tributaries Rio Tietê , Rio Paranapanema , Rio Iguazu
Right tributaries Río Paraguay , Río Salado
Big cities Rosario , Buenos Aires
Medium-sized cities Foz do Iguaçu , Ciudad del Este , Encarnación , Posadas , Corrientes , Paraná
Navigable Yes
Paraná near Encarnación - behind it the city of Posadas

Paraná near Encarnación - behind it the city of Posadas

The Paraná ( Guaraní Parana ) is a river in South America . It begins at the confluence of the Paranaíba and the Rio Grande at the point where the Brazilian states of Minas Gerais , São Paulo and Mato Grosso do Sul also form a triangle . After about 3200 kilometers to the south it flows together with the Río Uruguay to the 290 km long and up to 220 km wide estuary of the Río de la Plata .

The catchment area of the Paraná covers an area of ​​around 2.8 million square kilometers up to its influence in the Rio de la Plata. For the course of the Paraná together with the longer of the two source tributaries, the 1360 km long Rio Grande, a total length of 4880 kilometers is given.

River course

Immediately after the confluence of the Paranaíba and the Rio Grande , the Paraná flows into the Ilha Solteira reservoir . In the further course of the Paraná is almost continuously dammed, so the first reservoir is followed by the Jupiá Reservoir , then a vast depression east of the Serra de Maracaju , some waterfalls , the Porto Primavera Reservoir and the Itaipú Reservoir with the associated Itaipú - Power plant a few kilometers above the confluence of the Iguazú , which shortly before flows through the Iguazú waterfalls . The river continues its southward course for 500 km and then turns west for about 300 km. Before turning south again, it flows through the Yacyretá power plant , a dam jointly built by Paraguay and Argentina. At the bend to the south, the Paraná receives its largest tributary, the Rio Paraguay .

From the city of Santa Fe the river runs more in an easterly direction with increasing branches through increasingly marshy terrain until it forms the Río de la Plata together with the Río Uruguay and flows into the Atlantic. From the mouth to Rosario it is navigable by seagoing vessels.

For several states the Paraná has the function of a border river, for example between the Brazilian states

and the states

  • Paraguay and Brazil - approx. 190 kilometers,
  • Paraguay and Argentina - approx. 600 kilometers,

The last 1000 kilometers of the river are exclusively in Argentina, whereby the Paraná is also an internal border river between the Argentine provinces of Chaco , Corrientes , Entre Ríos , Santa Fe and Buenos Aires


Power plants and reservoirs

Looking downstream, the Paraná is dammed by the following five power plants:

power plant operator Max. Power (MW) Reservoir Surface (km²) Volume (km³)
Ilha Solteira CESP 3444 Ilha Solteira 1195 21,166
Engenheiro Souza Dias CESP 1551.2 Jupiá 330 3.353
Porto Primavera CESP 1540 Porto Primavera 2250 20th
Itaipú 14,000 Itaipú 1350 29
Yacyretá 3100 Yacyretá 1600 21st

In addition, there are or have been other power plant projects on Paraná, such as B. the Corpus Christi project .

See also

Web links

Commons : Río Paraná  - album with pictures, videos and audio files


  • Colbert E. Cushing, Kenneth W. Cummins, G. Wayne Minshall: River and Stream Ecosystems of the World: With a New Introduction . University of California Press 2006, ISBN 0-520-24567-9 , pp. 257-280 ( limited online version in Google Book Search - USA )
  • James R. Penn: Rivers of the World . ABC-CLIO, 2001, pp. 198-201
  • Martin H. Iriondo, Juan César Paggi: The Middle Paraná River: Limnology of a Subtropical Wetland . Springer, 2007

Individual evidence

  1. James R. Penn: Rivers of the World . ABC-CLIO, 2001, pp. 198-201
  2. a b c d https ://www. britica.com/place/Parana-River