The Aqua Appia was begun by the censor Appius Claudius Caecus (to whom also
Rome was indebted for her first great road), in B.C. 313. Its sources were near the Via
Praenestina, between the seventh and eighth milestones, and its termination was at the
salinae by the Porta Trigemina. Its length was u110 11,190 passus, for 11,130 of
which it was carried under the earth, and for the remaining 60 passus, within the city,
from the Porta Capena to the Porta Trigemina, it was on arches. The distribution of its
water began from the Clivus Publicius (Frontin. 5; Liv. ix.29; Diod. xx.36; Aur. Vict.
Vir. Illust. 34, who confounds it with the Anio). No traces of it remain.
P. Smith BA (in: A Dictionary of Greek and Roman Antiquities 1875, W. Smith DCL LLD)