Archaeological Park of Urbs Salvia

History

The city was founded as a colonia during the 2nd century BC. It was in the Roman province of Picenum and on the via Salaria Gallica. Its monuments were largely built under Augustus and Tiberius.. It was later the birthplace of some leading figures of the Roman Empire, such as the consul Gaius Fufius Geminus and Lucius Flavius Silva Nonius Bassus.

Urbs Salvia was sacked by the Visigoths in 408–10 AD, and suffered destruction over the years from earthquakes and plundering.

Archaeological Park

The Archaeological Park of Urbs Salvia is exceptional for the ease with which the overall building plan can be deciphered. The itinerary starts at the Archaeological Museum which houses, among other things, epigraphs, statues and portraits that were excavated in Urbisaglia from the middle of the 18th century onwards.

Just outside the medieval city walls, on the highest point of the site, you can find the large reservoir collecting and cleaning the water coming from the Roman Aqueduct of Urbs Salvia. It was formed by an underground vaulted conduit with lateral walls made of bricks (opus latericium). The ancient aqueduct ran under the top of this hill and was about 1.5 km long. It had a gentle and constant slope so that it could carry water from a spring situated at the opposite side of the present-day Urbisaglia into this structure.

The cisterns consist of two barrel vaulted tunnels connected at both ends, with internal walls covered by hydraulic mortar. The whole structure was built in opus caementicium (Roman concrete).

Each tunnel was about 51 m long, 2.90 m wide and 4.10 m high and had a capacity of about 1,000 cubic metres of water.

The reservoir provided the whole town with spring water and it was situated in the highest area inside Urbs Salvia so that it could be powered only by gravity. In the reservoir are still visible:

the water outlet: the opening through which water was distributed to the town. The pipes (fistulae) were made of lead;

the ventilation shafts (lumina): a series of openings in the vault for air exchange, check of level and quality of water and periodical maintenance (manual cleaning of the internal walls);

the water inlet: whence water flowed inside. It is formed by one of the ends of the aqueduct and shows a very thick layer of water deposit (calcium carbonate);

traces of the planks utilized to build the vaults are still visible at some parts. …