Aqua Alsietina

The Aqua Alsietina, also Aqua Augusta, was an ancient Roman aqueduct ( aqueduct ) to supply the city of Rome.

History

It was built under Emperor Augustus in 2 BC. The water from the Lacus Alsietinus, a crater lake, had no drinking water quality. It was built by Emperor Augustus mainly to flood the well 2 BC built Naumachia used an arena could be shown in the naval battles with real ships. The excess water could be used for irrigation of the gardens outside the city. If for urgent repair work in emergencies, the normal water supply by the other aqueducts over the Tiber bridges that was not possible, the Aqua Alsietina was used to supply the public fountains. The situation only improved with the construction of the Aqua Traiana, an AD under Emperor Trajan 109 AD established drinking water pipe, which, directly tapped Transtiberim, the situated on the right bank of the Tiber neighborhood of Rome.

Water management

The water supply was the Lacus Alsietinus (now Lago di Martignano ), a small lake in ancient Etruria, right next to Lake Bracciano, north- west of Rome, guaranteed. The water line extended into today's Trastevere district of Rome (from the Latin trans = Tiberim across the Tiber ) and went over the hill Janiculum ( Gianicolo Monte today ). The Aqua Alsietina was mostly underground and only over a length of 500 meters on an arch structure. Their total length was just under 33 km, their flow under 16,000 cubic meters per day.