VIA TIBURTINA
(Not. app.; Eins. 6. 4):the road which led to Tibur, 20 miles from Rome. It probably left the city by the porta Esquilina of the Servian wall (for other theories, which made it pass through the porta Viminalis, see LF 17, 18; PBS i. 139; iii. 85-86, though the name Tiburtina vetus is not vouched for by any classical authority, and is only retained for convenience). This would account for the erection over it of the arch of Augustus (which later became the PORTA TIBURTINA), whereas the straight road from the porta Viminalis passed through a small postern (the so-called porta Chiusa) south-east of the castra Praetoria, which was closed at some unknown period (HJ 343, 367, 368). Beyond Tibur the road took the name of via Valeria as far as Cerfennia. A group of milestones has been found at the thirty-sixth mile (NS 1890, 160), and the forty-third milestone also exists in situ (PAS i. 108-140).
The prolongation beyond Cerfennia was made by Claudius, as its name, via Claudia Valeria, implies (CR 1904, 187; Ml6. 1907, 462; PBS ix. 75-106; CIL ix. 5973).
The via Valeria is classed with the Appia and the Latina as one of the γνωπιμώταται τῶν ὁδῶν（Strabo v. 3. 9). For its curatores, who administered the whole road (being all later than Claudius), see BC 1891, 112, 124-127; CIL ix. 3667; xiii. 1803; BCH 1890, 644 (in which both the Tiburtina and the Valeria are mentioned); ii. 4126; vi. 3844 1; x. 3761; xiv. 2933 (?)2; EE viii. 158a (Tiburtina only); vi. 1517 (Valeria only). For the first part of the road, see Jord. i. I. 222, 359; T. vii. 5-60; PBS iii. 84-200, 208.