Roman Structures > Aqueducts > Aqua Claudia

Aqua Claudia

Aqua Claudia[1] (Classical Latin: [ˈakwa ˈklaoodia]) was an aqueduct of ancient Rome that, like the Anio Novus, was begun by Emperor Caligula (12 AD – 41 AD) in 38 AD and finished by Emperor Claudius (10 BC – 54 AD) in 52 AD.[2] Its main springs, the Caeruleus and Curtius, were situated 300 paces to the left of the thirty-eighth milestone of the Via Sublacensis. Subiaco which was 70 km (43 mi) away from Rome was also a water source.Contents [hide]1Structure2Repairs3See also4Notes5External linksStructure[edit]The channel length was 45–46 miles (c. 69 km, most of which was underground), and volume at the springs was 191,190 cubic metres in 24 hours (or 185,000 cubic meters[3]). Following Nero's completion of the Arcus Neroniani, one of the aqueduct's branches, the Aqua Claudia could provide all 14 Roman districts with water. Directly after its filtering tank, near the seventh mile of the Via Latina, it finally emerged onto arches, which increase in height as the ground falls toward the city, reaching over 100 feet. It is also one of the two ancient aqueducts that flowed through the Porta Maggiore, the other being the Anio Novus. It is described in some detail by Frontinus in his work published in the later 1st century, De aquaeductu. The church of San Tommaso in Formis was later built into the side of the acqueduct.The Aqua Claudia maintained its structure and appearance for so long because of the ingredients inside the concrete. Romans would mix in volcanic ash[4] which was a benefit for the concrete because it made the concrete stronger and durable. The aqueduct was powered by gravity, dropping 1 foot every 300 feet. Part of the structure was on solid ground while 9.5 miles of the structure was borne on lofty arches.Repairs[edit]The aqueduct went through two repairs during its standing. It was said that the Aqua Claudia was used for 10 years, then failed and was out of use for 9 years. The first repair was done by Emperor Vespasian in 71 AD; 10 years after the Aqua Claudia’s first repair in 71 AD, it was repaired again in 81 AD by Emperor Titus. Some possible causes for the repairs could have been cracking of the concrete, which would have led to a leakage or an object could have clogged the stream of water from making its way to the city and its people. There are many possible causes, but for the causes of the repairs of the Aqua Claudia are unknown.[citation needed]See also[edit]Ancient Roman technologyFrontinusList of aqueducts in the city of RomeList of aqueducts in the Roman EmpireList of Roman aqueducts by dateParco degli AcquedottiRoman engineeringRoman technologyNotes[edit]Jump up ^ In Latin, "the Claudian water"Jump up ^ Frontinus, De aquaeductu 1.13Jump up ^ Schram, Wilke D. “Aqua Claudia.” Website on Roman Aqueducts. N.p., Jan. 2010. Web. 15 Mar. 2013.Jump up ^ ash from volcanoes near RomeExternal links[edit]Wikimedia Commons has media related to Aqua Interactive map with the full Aqua ClaudiaMap of Rome with Aqua Claudia running (red)The Aqua Claudia Webpage3D digital model of Rome featuring Aqua Claudia

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