Zárate–Brazo Largo Bridge

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Zárate–Brazo Largo Bridge
Pte ZAE1.jpg
The Zárate–Brazo Largo Bridge
Coordinates 34°06′12″S 59°00′10″W / 34.1033°S 59.0027°W / -34.1033; -59.0027Coordinates: 34°06′12″S 59°00′10″W / 34.1033°S 59.0027°W / -34.1033; -59.0027
Carries National Route 12, General Urquiza Railway
Crosses Paraná River
Locale Zárate, Buenos Aires, and Brazo Largo, Entre Ríos
Official name Complejo Unión Nacional
Preceded by Rosario-Victoria Bridge
Design Cable-stayed bridge
Total length 550 m (1,804 ft)
Longest span 330 m (1,083 ft)
Construction start November, 1971
Opened December 14, 1977

The Zárate–Brazo Largo Bridges are two cable-stayed road and railway bridges in Argentina, crossing the Paraná River (Paraná Guazú and Paraná de las Palmas) between the cities of Zárate, Buenos Aires Province, and Brazo Largo, Entre Ríos Province.

The bridges have a suspended length of 550 m (1,804 ft), with a main span of 330 m (1,083 ft). Its pylons are 110 m (361 ft) high, and its deck depth is 2.6 m (8.5 ft). They were built between 1972 and 1977 on a design by Italian engineer Fabrizio de Miranda, and refurbished in 1998.

Zárate–Brazo Largo links the north of Buenos Aires with the southern part of the Argentine Mesopotamia, and also, by extension, Argentina with Uruguay and Brazil. The road link has four lanes. The main span is 50 m (164 ft) over the water level of the Paraná, which allows the passage of very large ships.

The bridge over the Parana de las Palmas is called "Bartolomé Mitre", while bridge over the Parana Guazú is called "Justo José de Urquiza".


  • (it) Baglietto E., Casirati M., Castoldi A., De Miranda F., Sammartino R., 1976, Ponti Zarate–Brazo Largo: modelli matematici e strutturali del comportamento statico e dinamico, in "Costruzioni Metalliche", 4/1976.
  • (it) De Miranda F., 1980, I ponti strallati di grande luce, Zanichelli Bologna (I), pp. 231–246.
  • Zárate-Brazo Largo Bridge I at Structurae
  • Zárate-Brazo Largo Bridge II at Structurae

External links[edit]