The same set of arches carries two water conduits (specus): the upper one for Anius Novus is made of pozzolan concrete (opus caementicum) and plastered from inside with layer of a watertight concrete (opus signinum). The lower specus of Aqua Claudia is made of peperino stone. The vault of the presented part of Anio Novus is ruined.
Latitude: N 41d 50m 40,07s
Longitude: E 12d 33m 47,92s