Raúl Uranga – Carlos Sylvestre Begnis Subfluvial Tunnel, Underwater road tunnel in Santa Fe, Argentina
The Raúl Uranga - Carlos Sylvestre Begnis Subfluvial Tunnel extends 2,397 meters beneath the Paraná River, connecting the provinces of Entre Ríos and Santa Fe.
German engineering firm Hochtief AG led the construction consortium that completed this first permanent crossing of the Paraná River, opening on December 13, 1969.
The tunnel's name honors two provincial governors, Raúl Uranga and Carlos Sylvestre Begnis, who signed the construction agreement in 1960 to unite their regions.
The underground passage accommodates two traffic lanes and receives over 2.7 million vehicles annually, with cars and motorcycles representing 80% of total traffic.
The tunnel structure consists of multiple cylindrical segments measuring 64 by 10.8 meters, embedded into the riverbed at a depth of 32 meters.
Location: Santa Fe
Inception: 1969
Official opening: December 13, 1969
Website: http://tunelsubfluvial.gov.ar
GPS coordinates: -31.70139,-60.50361
Latest update: May 26, 2025 20:53
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