The Via Flaminia was an ancient Roman road leading from Rome over the Apennine Mountains to Ariminum (Rimini) on the coast of the Adriatic Sea, and due to the ruggedness of the mountains was the major option the Romans had for travel between Etruria, Latium and Campania and the Po Valley. Today the same route, still called by the same name for much of its distance, is paralleled or overlain by Strada Statale (SS) 3, also called Strada Regionale (SR) 3 in Lazio and Umbria, and Strada Provinciale (SP) 3 in Marche. It leaves Rome, goes up the Val Tevere ("Valley of the Tiber River"), strikes into the mountains at Castello delle Formiche, ascends to Gualdo Tadino, goes over the divide at Scheggia Pass, 575 m (1,886 ft), to Cagli. From there it descends the eastern slope waterways between the Tuscan-Emilian Apennines and the Umbrian Apennines to Fano on the coast and goes north parallel to Highway A1 to Rimini.
This route, convenient to ancients, is far from it to heavy modern traffic between north Italy and the capital. It remains a country road, while the traffic crosses by railway and autostrada through dozens of tunnels between Florence and Bologna, a shorter, more direct route under the ridges and nearly inaccessible passes.
It was constructed by Gaius Flaminius during his censorship (220 BC). Sources mention frequent improvements being made to it during the imperial period. Augustus, when he instituted a general restoration of the roads of Italy, which he assigned for the purpose among various senators, reserved the Flaminia for himself, and rebuilt all the bridges except the Pons Mulvius, by which it crosses the Tiber, 3 km (2 mi) 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 77, and Trajan, as inscriptions show, repaired several bridges along the road.
In the Middle Ages it was known as the Ravenna road, as it led to the then more important city of Ravenna. Following the end of the Exarchate of Ravenna, it fell into disuse during the Lombard period, but was partially reconstructed in the Renaissance era and continued to be of military importance down to the Napoleonic era and World War II. As the SS 3 (Strada Statale 3) it remains one of the principal highways from Rome to the Adriatic.
The importance of the ancient Via Flaminia is twofold: during the period of Roman expansion in the 3rd and 2nd centuries BC, the Flaminia became, with the cheaper sea route, a main axis of transportation by which wheat from the Po valley supplied Rome and central Italy; during the period of Roman decline, the Flaminia was the main road leading into the heartland of Italy: it was taken by Julius Caesar at the beginning of the civil war, but also by various barbarian hordes, Byzantine generals, etc. A number of major battles were therefore fought on or near the Via Flaminia, for example at Sentinum (near the modern Sassoferrato) and near Tadinum (the modern Gualdo Tadino). In the early Middle Ages, the road, controlled by the Eastern Empire, was a civilizing influence, and accounted for much of what historians call the "Byzantine corridor".
Ancient route 
The Via Flaminia starts at Porta del Popolo in the Aurelian Walls of Rome: Via del Corso (Via Lata), which connects the Campidoglio to the gate, can be considered the urban stretch of the Via Flaminia. The road then runs due north, considerable remains of its pavement being extant under the modern road, passing slightly east of the site of the Etruscan Falerii (Civita Castellana), crossing the Tiber into Umbria over a bridge some slight vestiges of which can still be seen, the "Pile d' Augusto". From there it made its way to Ocriculum (Otricoli) and Narnia (Narni), where it crossed the Nera River by the largest Roman bridge ever built, a splendid four-arched structure to which Martial alludes, one arch of which and all the piers are still standing; and went on, followed at first by the modern road to Casuentum (San Gemini) which passes over two finely preserved ancient bridges, through Carsulae to Mevania (Bevagna), and thence to Forum Flaminii (S. Giovanni Profiamma). Later, a more circuitous route from Narnia to Forum Flaminii was adopted, increasing the distance by 12 Roman miles (18 km) and passing by Interamna Nahars (Terni), Spoletium (Spoleto) and Fulginium (Foligno) — from which a branch diverged to Perusia (Perugia).
From Forum Flaminii the Flaminia went on to Nuceria Camellaria (Nocera Umbra) — whence a branch road ran to Septempeda and thence either to Ancona or to Tolentinum (Tolentino) and Urbs Salvia (Urbisaglia) — and Helvillum (site uncertain, probably Sigillo, but maybe Fossato di Vico), to cross the main ridge of the Apennines, a temple of Jupiter Apenninus standing at or near the summit of the pass according to one ancient author. From there it descended to Cales (Cagli), where it turned north-east following the gorges of the Burano River.
The narrowest pass was crossed by means of a tunnel chiseled out of solid rock: a first tunnel apparently of the 3rd century BC was replaced by an adjacent tunnel by Vespasian. This is the modern Gola del Furlo, the ancient name of which, Intercisa, means "cut through" with reference to these tunnels. The modern 2‑lane road, the SS 3 Flaminia, still uses Vespasian's tunnel, the emperor's dedicatory inscription still in place; remnants of the earlier tunnel can also be seen.
The Flaminia emerged from the gorges of the Apennines at Forum Sempronii (Fossombrone) and reached the coast of the Adriatic at Fanum Fortunae (Fano). Thence, it ran north-west through Pisaurum (Pesaro) to Ariminum (Rimini). The total distance from Rome was 210 Roman miles (311 km) by the older road and 222 (329 km) by the newer. The road gave its name to a juridical district of Italy from the 2nd century onwards, the former territory of the Senones, which was at first associated with Umbria (with which indeed under Augustus it had formed the sixth region of Italy called Umbria et Ager Gallicus), but which after Constantine was always administered with Picenum.
- For an overview of the location of Roman bridges, see List of Roman bridges.
Extant remains of the road consist of rare patches of pavement (by far the largest is an intermittent stretch about 800 meters long at Rignano Flaminio in the northern Lazio), but for the most part of bridges, listed here in order from Rome:
- From Rome to Narni:
- the Milvian Bridge (now Ponte Milvio)
- the Pile di Augusto
- Ponte Sanguinaro S of Narni
- the great bridge at Narni
- Along the western branch:
- Ponte Caldaro, damaged in World War II
- Ponte Calamone both before Sangemini
- Ponte Fonnaia near Acquasparta
- a bridge just outside Acquasparta, on which was built the church of S. Giovanni de Butris
- Ponte del Diavolo at Cavallara near Bastardo
- Along the eastern branch:
- Ponte Sanguinaro in Spoleto
- scant remains of a bridge at Pontebari
- After the branches rejoin at S. Giovanni Profiamma:
- bridge-like structure at Pieve Fanonica
- Le Spugne near Nocera Umbra
- three bridges in the comune of Fossato di Vico (one of which, however, belongs properly to a branch road off the main trunk of the Flaminia)
- Ponte Spiano in Costacciaro
- an imposing bridge at Villa Scirca, blown up in World War II
- five bridges in the comune of Cantiano, near Pontedazzo and Pontericcioli
- Ponte Mallio (or Manlio) at Cagli, which appears to be partly of pre-Roman (Umbrian) construction
- Gallery at Furlo Pass
Other notable Roman vestiges along the road, aside from those within the individual towns, include a pair of tower tombs between Bevagna and Foligno; and along the eastern branch of the Flaminia in particular, in the area between Spoleto and Trevi, many small Romanesque churches, partly built of reused Roman stone (spolia) — including a few inscriptions — mark the straight line of the road quite clearly. A small stretch of the road remains in the ruins of Carsulae where it passes through the impressive Arco di Traiano.
In Rome it runs past and gives its name to the Stadio Flaminio sports stadium.
See also 
- Epigr. vii. 93, 8
- 1960 Summer Olympics official report. Volume 1. p. 84.
- 1960 Summer Olympics official report. Volume 2, Part 1. p. 319.
- The Via Flaminia at LacusCurtius
- Omnes Viae: Via Flaminia on the Peutinger Map