Subiaco Dams

The Subiaco Dams are three Roman gravity dam structures along the Aniene River that functioned as an integrated water management system. The main dam reached about 50 meters high and roughly 13.5 meters wide, combining water control with recreational areas and supply through an aqueduct.

Emperor Nero commissioned these dams between 54 and 68 AD to create artificial lakes for his summer retreat. The structures represent an early chapter in water technology development and also served supply purposes via the Anio Novus aqueduct.

The dams reveal how Romans managed water as a resource tied to power and leisure, integrated into an imperial retreat. The structures show the connection between engineering skill and the lifestyle of the ruling class.

The remains sit about 75 kilometers east of Rome along the Aniene River. The site is best explored through guided tours that explain the historical context and accessible areas.

A monastery painting from 1428 shows Saint Benedict fishing from the dam crest. This image marks the oldest known artistic depiction of a dam structure in history.

GPS coordinates: 41.91070,13.12520

Latest update: December 9, 2025 18:43