Caldaccoli Aqueduct

The Caldaccoli Aqueduct is a Roman water conduit in San Giuliano Terme built from stone arches and underground channels. It carried both cold spring water and hot thermal water simultaneously to supply the distant city of Pisa.

Construction began in 92 CE when Lucius Venuleius Montanus commissioned the structure to serve the baths of Pisa. The project reflected Roman ingenuity in channeling waters from local springs to distant urban centers.

The structure represents Roman engineering methods for water management, featuring a dual system for transporting both cold and thermal waters simultaneously.

The remains sit within a private garden along Via Statale Abetone and require advance permission to visit. Access is restricted since the property is privately owned and not open to casual foot traffic.

The structure featured separate internal pipes to keep hot and cold water from mixing during transport. This dual-channel design was a clever Roman solution for delivering waters of different temperatures simultaneously.

Location: San Giuliano Terme

Inception: 92

GPS coordinates: 43.76883,10.43660

Latest update: December 13, 2025 17:03