Zárate-Brazo Largo Bridge
Zárate-Brazo Largo Bridge, Road-rail bridge in Entre Ríos, Argentina
The Zárate-Brazo Largo complex includes two cable-stayed bridges spanning 555 meters across the Paraná de las Palmas and Paraná Guazú rivers.
The bridge complex, inaugurated on December 14, 1977, received its official name 'Complejo Unión Nacional' in 1995, connecting Zárate city with Brazo Largo.
The two bridges, named after General Bartolomé Mitre and Justo José de Urquiza, received National Historic Site designation in 2008.
The bridge structure accommodates both automotive traffic on National Route 12 and railway tracks of the General Urquiza Railroad system.
During November 1996, the bridge underwent emergency repairs when a tension cable anchor broke, leading to temporary restrictions for both rail and vehicle traffic.
Location: Zárate Partido
Inception: December 14, 1977
Official opening: December 14, 1977
Height: 50 m
Length: 555 m
Made from material: reinforced concrete
GPS coordinates: -34.10314,-59.00275
Latest update: September 23, 2025 16:45
Gustave Eiffel and his firm designed and constructed metal bridges across several continents between the 1860s and early 1900s. These structures enabled railway and road connections over rivers, gorges, and valleys. The bridges used wrought iron and later steel, with truss and arch designs that represented advanced engineering methods for their time. Examples of this work are found in Portugal, where the Maria Pia Bridge crosses the Douro River, and in France, including the Garabit Viaduct over the Truyère. In Vietnam, the Long Bien Bridge connects Hanoi across the Red River. Additional structures stand in Peru, Bolivia, and other South American countries. Many of these bridges remain operational or accessible as preserved engineering monuments.
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