La Barra and Manantiales: the wavy bridge by Leonel Viera
A 1965 bridge that gave the world a new technique, inspired Neruda and became a National Monument. And the two resorts that grew around it.
Everyone who drives east out of Punta del Este passes over it and does the same thing: accelerates slightly, feels their stomach lift and comes down laughing.
The wavy bridge of La Barra is one of the most recognisable images in Uruguay. What almost nobody knows is that it was the first structure in the world built with the technique that made it possible — and that the man who designed it never qualified as an engineer.
Before the bridge, a ferry
Until 1912, crossing the arroyo Maldonado meant taking a boat. Then came a ferry held to the banks by a cable, which carried people, cargo, animals and — with luck — cars.
The resort of La Barra already existed: founded in 1913 by the Spanish surveyor Salvador Pallas Gómez, with an original plan of just over eight hectares divided into blocks and plots. The first residents were fishermen from San Carlos and Argentine holidaymakers.
The isolation — the stream on one side, Punta del Este on the other — is what gave La Barra its identity: close to the activity, separate from it.
In 1936, the Intendencia de Maldonado built the first bridge, in timber, the work of Juan Antonio Zanoni. It was so narrow that only one vehicle could cross at a time, and it shook as cars went over. When a bus was about to cross, the passengers got out and walked across to lighten the load.
In 1946 came a second bridge, in concrete — but resting on timber piles. A decade later, molluscs that feed on wood ate through the piers, and on 6 January 1957 the structure gave way. La Barra went back to the old timber bridge, with a traffic light at each end to organise the single-lane crossing.
The bridge that introduced a technique
Between 1963 and 1965 the definitive solution was raised, and it was bold in a way that would be difficult to approve today.
Its author was Leonel Viera, a Uruguayan builder who taught at the Faculty of Engineering of the Universidad de la República but never graduated. He also signed the Cilindro Municipal, in Montevideo, among other works in concrete.
The La Barra bridge was the first proof in the world of the stressed-ribbon technique — in which the deck itself works in tension, like a cable. There are three spans, of 30, 90 and 30 metres, making 150 metres in length and 10 in width, in prestressed concrete.
The prestressing method was rudimentary and brilliant: the piers were driven into the bed of the stream, steel cables were anchored at each end, concrete slabs were laid over them and, on top, tonnes of sandbags to tension the cables. Once the joints had been concreted, the bags were removed — and the structure was left permanently under tension.
The result is the undulation. It is not decoration: it is the geometry of the technique itself, and it creates an analogy with the waves of the stream that anyone grasps without needing an explanation.
The bridge is today a National Historic Monument, and since 1975 it has officially carried the name of its author.
The Neruda poem
In 1968, Pablo Neruda visited Punta del Este and wrote a poem about the curved bridge of La Barra. One passage says that the undulation of its grandeur “unites two separated solitudes / and aims to be nothing but a path”.
In 2002 a plaque bearing the poem was placed beside the bridge. The plaque was stolen. The poem remained.
In 1999, to cope with summer traffic, a second, twin bridge was opened — designed by the engineer Alberto Ponce Delgado — just twenty metres from the original, upstream. These are the two waves you see today.
The resort the bridge created
With the bridge of 1965, La Barra changed in nature within a few years.
The first six blocks of the settlement were converted into a tourist zone: pubs, restaurants, hotels and shops opened. The residential area had to shift east and north. What had been a fishing hamlet became the most fashionable resort on the Uruguayan coast.
Today La Barra has 1,229 permanent residents, according to the 2023 Census — and a season that multiplies that number many times over. It is the address of the art galleries, the design shops, the seasonal restaurants and the nightlife of the east.
Manantiales: the next step along
A few kilometres further on, Manantiales has 364 permanent inhabitants.
It is the quieter version of the same coastline: wide beaches, low houses, some of the best-known beach clubs in the region and a rhythm considerably slower than that of La Barra. It sits exactly between the bustle of La Barra and the discretion of José Ignacio — and many people who know all three end up choosing the one in the middle.
Between the two, along Ruta 10 and Ruta 104, stretches a rural belt close to the sea, with smallholdings, country houses and a golf club. That is where the property growth of the region has been happening in recent years.
The Fundación Pablo Atchugarry
Between La Barra and Manantiales stands one of the most significant cultural institutions in Uruguay — and one of the least known to foreign visitors.
The Fundación Pablo Atchugarry, on Ruta 104, is a non-profit organisation dedicated to every artistic discipline. It brings together a 15-hectare sculpture park, the sculpture studio of Atchugarry himself — the best-known contemporary Uruguayan sculptor —, an exhibition hall and an auditorium.
Together with the MACA, it is the axis of the contemporary art circuit of the east coast, and it operates well beyond the summer season.
Note on sources: the historical data come from Uruguayan public sources, including the Intendencia de Maldonado and local history archives; there are small divergences between sources as to the exact date the bridge opened, placed between 1963 and 1965 depending on the criterion adopted. The population is the figure recorded by the 2023 INE Census. Opening hours and programmes of cultural institutions should be confirmed before visiting.
Frequently asked questions
Where is the wavy bridge of La Barra?
Over the arroyo Maldonado, on Ruta 10, linking Punta del Este to La Barra, shortly before the mouth on the Atlantic Ocean. There are now two twin bridges: the original by Leonel Viera and the one from 1999.
Who built the La Barra bridge?
Leonel Viera, a Uruguayan builder who taught at the Faculty of Engineering but never graduated. The structure was the first application in the world of the stressed-ribbon technique, and it is a National Historic Monument.
Why is the bridge wavy?
The undulation is a consequence of the stressed-ribbon construction technique, in which the deck itself works in tension. It is not ornament: it is the geometry of the structure.
How many people live in La Barra and Manantiales?
According to the 2023 Census, La Barra has 1,229 permanent residents and Manantiales 364. In season, the numbers multiply.
What is the difference between La Barra, Manantiales and José Ignacio?
La Barra is the busiest, with galleries, shops and nightlife; Manantiales is the middle ground, with wide beaches and a slower rhythm; José Ignacio is the quietest and most exclusive, protected by an ordinance that limits construction to seven metres.
What is the Fundación Pablo Atchugarry?
A non-profit cultural institution between La Barra and Manantiales, with a 15-hectare sculpture park, the studio of the sculptor Pablo Atchugarry, an exhibition hall and an auditorium.
Where to start
The story of the La Barra bridge is, at bottom, the story of Uruguay in miniature: an ingenious solution, built with few resources by someone without the diploma, which ended up becoming heritage, inspiring a poet and transforming an entire region.
And it is still there, sixty years on, doing exactly what Neruda wrote that it did — uniting two separated solitudes, without aiming to be more than a path.
For anyone assessing the east coast as a place to live, La Barra and Manantiales are the middle ground between the infrastructure of Punta del Este as a permanent address and the discretion of José Ignacio — with the advantage of being a few minutes from Maldonado, which handles daily life all year round.
The full map of the regions is in Map of the regions of Uruguay. And when the choice becomes a project, this is the path we walk alongside the family in Relocation and Living.
Informational content. It does not constitute real-estate, legal, tax or investment advice. Data verified on 21 August 2026 with Uruguayan public sources and the Instituto Nacional de Estadística. Each situation is analysed individually.