Diga di Ridracoli, Water dam in Bagno di Romagna, Italy.

The Ridracoli Dam is a concrete barrier spanning a mountain valley that creates a large reservoir in the Romagna region. The structure holds back water to supply downstream areas and generate electricity.

Planning began in the early 1960s and technical design dates to 1974; slope consolidation and excavation ran from 1976 to 1979, when over 170,000 tonnes of rock were removed by explosive. The dam was completed in 1982 and inaugurated on 9 April 1988 in the presence of Senate President Giovanni Spadolini. Some 1,400 workers laboured for 12 years on the works, which cost 570 billion lire.

The Ecomuseum adjacent to the structure displays exhibits about water's role in shaping human communities and natural systems. Visitors can see how water management has influenced local life and development.

The area around the reservoir has hiking trails and different ways to explore the landscape by water or on foot. Visitors should wear appropriate footwear and be prepared for changing mountain weather.

The dam's arch is 432 metres long and holds back 33.06 million cubic metres of water at maximum operating capacity. Its crest carries eight rectangular openings that can discharge up to 600 cubic metres per second into a 6,000-square-metre stilling basin 14 metres deep.