After being established in 1880 to design, build and manage hydraulic and reclamation works, Società italiana per le Condotte d’acqua provided for the construction of the Villoresi Canal. The diversion of the waters of the Ticino River was the first major work also on a European level. It took ten years to cover a total of 80 km at a cost of 16 million lira.
In the post-war period from 1930s to 1940s, in addition to building many aqueducts from Umbria to Sardinia and abroad, in Rhodes and Albania, Condotte stood out for the construction of prestigious buildings, designed by the best architects of the time, such as Camillo Nardi Greco who, in 1935, designed the Colonia Marina in Chiavari, considered a jewel of rationalism, the Palace of the International Film Festival and Palazzo Balbi in Venice.
In the following years, the company built railway tunnels, forced flow ducts, hydroelectric power plants, hundreds of aqueducts, viaducts, skyscrapers and carried out the work on the Italian side of the Mont Blanc tunnel, which involved 1500 people in three daily shifts for six years, in environments with temperatures ranging, depending on the season, from over 30°C to -20°C.
In the Seventies Condotte experienced an incessant increase in the construction of major works, from aqueducts to canals, from dams to bridges, all with innovative techniques. The viaduct over the Paraná River in Argentina was one of the first ‘’cable-stayed’’ viaducts, a type of “suspension” bridge wherein the deck is supported by a number of cables (stays) anchored to support pylons (towers).
In the 1980s Condotte worked on two projects abroad, the largest ever awarded by an Italian company. The ports of Sines in Portugal and that, as the leader of a group of Italian companies, of the pharaonic project of the Bandar Abbas Port Complex in Iran, wanted by the Shah of Persia in 1973, amounting to 2000 billion lire. This last work, however, turned into a big issue because Khomeini's revolution took place and the payments were not made.
The High-Speed program of the Italian Railways launched by Lorenzo Necci, the then “visionary” President, involved Condotte on the Rome-Florence, Turin - Milan and Rome-Naples routes. Abroad, Condotte carried out exceptional works such as the 2.5-kilometre “cable-stayed” bridge in the USA, with a gap of the main span of 381 metres. In addition, it should be remembered the tourism development project in the Red Sea, along 230 meters of coast on the Gulf of Aquaba.
In Venice it took part in the launch of Mose, the recently completed mega-project to defend Venice from high water. In Rome it built the new conference centre at Eur, designed by Massimiliano Fuksas, with a light body inside, the famous “Nuvola”, with articulated geometric shapes that house a main hall for 9000 seats.