Ronda’s Puente Nuevo (“New Bridge”) is the stone bridge that spans El Tajo, the gorge of the Guadalevín River that splits the town of Ronda in the province of Málaga, Andalusia, in southern Spain. Finished in 1793 after 34 years of building, it rises about 98 metres (320 ft) from the floor of the gorge and is about 70 metres long, joining the old Moorish town, La Ciudad, to the newer Mercadillo quarter. It is the newest and largest of the three bridges across the gorge, was completed by the architect José Martín de Aldehuela, and replaced an earlier bridge that collapsed in 1741, killing 50 people. Today it still carries a road between the two halves of the town and is the image by which Ronda is known.
Before 1735: a town on a cliff and the Puente Viejo
Ronda sits on the Ronda Depression, a plateau at around 750 metres (2,460 ft) above sea level, and the Guadalevín runs straight through it. The river rises in the Sierra de las Nieves and flows to the Guadiaro; its name comes from the Andalusi Arabic wādī al-lebín, “river of milk”. Where it crosses the town it has cut a canyon more than 100 metres deep with near-vertical walls, so that the old town on the southern side stands on what is almost an island of rock.
That rock is why Ronda was built where it is. Under Umayyad rule from 713 it was called Hisn al-Rundah, “Castle of Rundah”, and later it became the seat of a small taifa kingdom and then part of the Nasrid Kingdom of Granada, until the Crown of Castile took it by force in 1485. For centuries the only way across the gorge near the town was low down, close to the water. The oldest crossings, the small arch known as the Puente Árabe or Puente Romano and the Puente Viejo above it, sit near the river. The Puente Viejo is a single arch about 10 metres across and around 31 metres above the river. Its origin is disputed. Most authors consider it Berber work of the Islamic period, and after the Castilian conquest King Ferdinand ordered its repair in 1486. A flood carried it away in 1616 and it was rebuilt under the corregidor Juan Antonio Turubio de Quiñones. Until the eighteenth century it was the bridge that linked the walled city with the growing Mercadillo district outside it.
1735–1741: José García and Juan Camacho’s single arch
By the eighteenth century the Mercadillo, laid out after the Castilian conquest, had grown into a real second town, and the long climb down to the Puente Viejo and back up again was a serious obstacle. In 1735 work began on the first attempt to bridge the gorge at the height of the cliff tops. The architects José García and Juan Camacho chose a single arch to leap the chasm in one span.
The bridge went up quickly and badly. Spanish accounts put the failure down to a lack of support, an arch that was poorly closed and generally poor workmanship. In 1741, six years after work started, the whole structure collapsed into the gorge, and 50 people were killed. That disaster shaped everything that followed: the next design would put safety ahead of elegance.
1751–1793: Martín de Aldehuela fills the gorge
The decision to try again was taken in 1751. To pay for it, the town raised 15,000 reales from the Real Maestranza de Caballería, Ronda’s noble riding order, whose statutes date from 1573, and imposed a levy on the May Fair. Building began in 1759. Several master builders worked on it over the following decades, with Juan Antonio Díaz Machuca as chief builder, but the man most closely tied to it is José Martín de Aldehuela, an Aragonese architect from Manzanera in Teruel province who had worked on Cuenca Cathedral and, from 1778, in Málaga, where he completed the eleven-kilometre San Telmo aqueduct in 1782. He finished the bridge, and it was inaugurated in May 1793.
The design was deliberately conservative. Rather than one arch of around 35 metres across the gap, the builders in effect filled the narrowest part of the gorge with masonry, taking the foundations down about 100 metres to rest on the riverbed and carrying a much smaller central arch, about 15 metres across. Beneath it a second, lower arch lets the Guadalevín through. Two more round arches flank the upper level and carry the roadway. The stone, known locally as piedra de Ronda, was quarried from the bottom of the gorge itself, which is why the bridge seems to grow out of the cliff. Engineers have since described it as an inefficient structure, with far more material than it needed and very costly to build, and that weight is exactly what has kept it standing.
Aldehuela was busy in Ronda in the same years. He is credited with the design of the Plaza de Toros, the bullring built between 1779 and 1785 about two blocks from the bridge, one of the first in Spain built entirely of stone and the setting for the 1785 fight between Pedro Romero, of Ronda’s Romero bullfighting family, and his rival Pepe Hillo. A popular legend says that Aldehuela threw himself from the Puente Nuevo so that no more beautiful bridge could ever be built. It is false: he died in Málaga on 7 September 1802, in near poverty.
1793–1839: the highest bridge span in the world
When it opened, the Puente Nuevo held the highest bridge span in the world, a title it kept until 1839, when the Pont Charles-Albert, better known as the Pont de la Caille, was inaugurated over the Usses river in Haute-Savoie, France. Its practical effect was more local. The road across the top joined the two halves of Ronda directly at cliff-top level, so the old walled city and the Mercadillo, with its new bullring, could grow as one town. In 1918 Ronda hosted the Assembly of Ronda, and in the Plaza del Socorro, now the town’s political centre, Blas Infante showed the Andalusian flag and coat of arms for the first time.
The new bridge did not bring easy times. During the Napoleonic invasion and the Peninsular War, Ronda’s population fell from 15,600 to 5,000 in three years. The surrounding Serranía became a base first for guerrilla fighters and then for bandits, and their stories drew Romantic writers and artists including Washington Irving, Prosper Mérimée and Gustave Doré. Their work helped make Ronda, split by its gorge and joined by its bridges, a stop for travellers on the Romantic route through Andalusia.
1917 and 1936: rockfall, prison and civil war
The gorge below the bridge was a working place, lined with mills driven by the Guadalevín. In 1917, in the middle of the night, a rockfall in the gorge near the Puente Nuevo buried 15 people asleep in those mills, ten of them from a single family.
Above the central arch the bridge contains a chamber, entered through a small square building that once served as the guardhouse. Over the years it has been used for a variety of purposes, including as a prison. During the Spanish Civil War of 1936–1939, both sides are alleged to have used it to hold and torture captured opponents, and some prisoners were reportedly killed by being thrown from the windows onto the rocks of El Tajo. Ronda was hit hard by the war, which drove emigration and depopulation. Ernest Hemingway’s novel For Whom the Bell Tolls includes, in chapter 10, a scene in which Nationalist sympathisers in an Andalusian village are thrown from a cliff; it is said to have been based on killings at the cliffs of El Tajo in 1936.
From Rilke’s 1912 winter to Ronda in 2025
Ronda’s reputation as a destination was already forming before the civil war. The railway between Algeciras and Ronda, built from 1890 to 1892 by the Algeciras Gibraltar Railway Company, brought British officers up from the heat of Gibraltar, and the Hotel Reina Victoria opened in 1906. The poet Rainer Maria Rilke stayed there for three months between December 1912 and February 1913, and his room is kept as a small museum. Hemingway and the film director Orson Welles spent many summers in La Ciudad and wrote about the town and its bullfighting; after Welles died in 1985, his ashes were buried in a well on the rural property of his friend, the retired bullfighter Antonio Ordóñez.
Today the chamber over the central arch houses an exhibition on the bridge’s history and construction, and a viewpoint named after the architect, the Mirador de Aldehuela, looks back at his work. Ronda had a registered population of 33,671 in 2025 and is one of the municipalities in the Sierra de las Nieves National Park, where the Guadalevín begins. More than two centuries after Aldehuela finished it, cars and pedestrians still cross El Tajo on his bridge.
To understand how a river like the Guadalevín carves a canyon this deep, see our explainer on what a gorge is and how it forms, and for a very different Andalusian crossing, compare the modern cable-stayed Alamillo Bridge in Seville.