AQUA TRAIANA
* an aqueduct built by Trajan (Not. app.; Pol. Silv. 545,546;
LP i. 211), which drew its supply from springs at the north-west corner
of the Lake of Bracciano (lacus Sabatinus). There are scanty traces of
the ancient channel, but they have mostly been concealed by the reconstruction of the aqueduct by Paul V in 1605 (whence the modern name
Acqua Paola). An inscribed cippus of 109 A.D. was found some 10 miles
from Rome (
CIL vi. 1260=31567=xi. 3793);
1 while another with the
inscription destroyed has been identified (
BC 1892, 289). A large
castellum with many lead pipes radiating from it was found in the Vigna
Lais on the via Aurelia (LA 461-463, but the only ones quite certainly
found here are
CIL xv. 7369-7373, while 7485, 7609, 7625, 7656, 7662 are
doubtful).
The channel has recently been found in the construction of the American
Academy (Mem. Am.
Acad. i. (1917) 59-61, and pl. 15), while in 1887
some of the mills for which it supplied the motive power were found
(LF 27; see
MOLINAE).
For its terminal castellum, see Cohen, Trai. 20-25, and for a branch from
it to an establishment for pisciculture, see
NS 1924, 56; YW 1923-4, 110.
The aqueduct was cut by Vitiges in 537 (Procop.
BG i. 15, 19) and
repaired by Belisarius (
CIL xi. 3298). For repairs in the seventh and
eighth centuries see
LPD i. 324, 327 n. 20; 503, 504, 510; and cf. DuP
35, 38. (
Jord. i. 1. 475;
ii. 225; LA 374-380; LR 56; HJ 648.)
