It was constructed by Gaius Flaminius during his censorship (220 BC). Sources mention frequent improvements being made to it during the imperial period. Augustus instituted a general restoration of the roads of Italy, assigning supervision of different regions to various senators. He reserved the Flaminia for himself, and rebuilt all the bridges except the Pons Mulvius, by which it crosses the Tiber, north of Rome (built by Marcus Aemilius Scaurus in 109 BC), and an unknown Pons Minucius. Triumphal arches were erected in his honour on the former bridge and at "Ariminum", the latter of which is still preserved. Vespasian constructed a new tunnel through the pass of "Intercisa" (Furlo), in AD 77, and Trajan, as inscriptions show, repaired several bridges along the road.