The Ponte Vecchio is a medieval stone closed-spandrel segmental arch bridge over the Arno River, in Florence, Italy. The only bridge in Florence spared from destruction during the Second World War, it is noted for the shops built along it; building shops on such bridges was once a common practice. Butchers, tanners, and farmers initially occupied the shops; the present tenants are jewelers, art dealers, and souvenir sellers. The Ponte Vecchio's two neighboring bridges are the Ponte Santa Trinita and the Ponte alle Grazie.
The ancient Romans were the first civilization to build large, permanent bridges. Early Roman bridges used techniques introduced by Etruscan immigrants, but the Romans improved those skills, developing and enhancing methods such as arches and keystones. There were three major types of Roman bridge: wooden, pontoon, and stone. Early Roman bridges were wooden, but by the 2nd century stone was being used. Stone bridges used the arch as their basic structure, and most used concrete, the first use of this material in bridge-building.
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct may be made from a series of arches, although other more economical structures are typically used today.
The Pons Fabricius or Ponte dei Quattro Capi, is the oldest Roman bridge in Rome, Italy, still existing in its original state. Built in 62 BC, it spans half of the Tiber River, from the Campus Martius on the east side to Tiber Island in the middle. Quattro Capi refers to the two marble pillars of the two-faced Janus herms on the parapet, which were moved here from the nearby Church of St Gregory in the 14th century.
Ponte Sant'Angelo, originally the Aelian Bridge or Pons Aelius, is a Roman bridge in Rome, Italy, completed in 134 AD by Roman Emperor Hadrian, to span the Tiber from the city centre to his newly constructed mausoleum, now the towering Castel Sant'Angelo. The bridge is faced with travertine marble and spans the Tiber with five arches, three of which are Roman; it was approached by means of a ramp from the river. The bridge is now solely pedestrian and provides a scenic view of Castel Sant'Angelo. It links the rioni of Ponte, and Borgo, to which the bridge administratively belongs.
The Pons Cestius is an ancient Roman bridge connecting the right bank of the Tiber with the west of the Tiber Island in Rome, Italy. In Late Antiquity, the bridge was replaced and renamed the Pons Gratiani. It is also known as Ponte San Bartolomeo. No more than one third of the present stone bridge is of ancient material, as it was entirely rebuilt and extended in the 19th century, after numerous earlier restorations.
The Ponte Pietra, is a Roman arch bridge crossing the Adige River in Verona, Italy. The bridge was completed in 100 BC, and the Via Postumia from Genoa to Aquileia passed over it. It is the oldest bridge in Verona.
The Pons Aemilius, today called Ponte Rotto, is the oldest Roman stone bridge in Rome, Italy. Preceded by a wooden version, it was rebuilt in stone in the 2nd century BC. It once spanned the Tiber, connecting the Forum Boarium with Trastevere; a single arch in mid-river is all that remains today, lending the bridge its name Ponte Rotto.
The Bridge of Tiberius or Bridge of Augustus is a Roman bridge in Rimini, Italy. The bridge features five semicircular arches made of white Istrian stone with an average span length of ca. 8 m. Above the arches lied niches framed with pilasters carrying entablatures and pediments. They were framed on the arch bridge's walls. Modillions supported cornices were covered by a coping at the top. An inscription commemorating the construction of the bridges was located near the coping. Construction work started during Augustus' reign and was finished under his successor Tiberius in 20 AD; an inscription thus calls the structure as "given by both emperors". The bridge was the only crossing of the Marecchia not destroyed by the retreating German army during the Battle of Rimini as it was judged militarily pointless.
The Alconétar Bridge, also known as Puente de Mantible, was a Roman segmental arch bridge in the Extremadura region, Spain. The ancient structure, which featured flattened arches with a span-to-rise ratio of 4–5:1, is one of the earliest of its kind. Due to its design, it is assumed that the bridge was erected in the early 2nd century AD by the emperors Trajan or Hadrian, possibly under the guidance of Apollodorus of Damascus, the most famous architect of the time.
The Ponte di Quintodecimo is a Roman stone bridge over the river Tronto next to the village of Quintodecimo, Marche, central Italy.
The Pont sur la Laye or Pont roman de Mane is an old stone arch bridge across the stream Laye in the French Provence close to the town Mane.
The Roman Bridge at Saint-Thibéry was a Roman bridge on the Via Domitia in southern France. The partly surviving structure crossed the river Hérault in Saint-Thibéry, 17 km (11 mi) east of Béziers.
The Ponte del Gran Caso is a Roman bridge across the Torrente Gran Caso, 2 km east of Ascoli Piceno in central Italy.
The Pont de Pierre, meaning "Stone Bridge", is a Roman bridge in the Italian city of Aosta in the Aosta Valley. The bridge crossed the Buthier about 600 m (2,000 ft) from the eastern exit of the Roman colony Augusta Praetoria; in later times the torrente changed its course, leaving the ancient bridge today without water.
The Ponte San Lorenzo is a Roman bridge over the river Bacchiglione in Padua, Italy. Constructed between 47 and 30 BC, it is one of the very earliest segmental arched bridges in the world. It is also notable for the slenderness of its piers, unsurpassed in antiquity.
The Ponte Nomentano is a Roman bridge in Rome, Italy, which carried the Via Nomentana over the Aniene. Having lain outside the city limits for most of its history, the picturesque bridge is noted for its medieval bridge tower, which served to protect this important northern approach to Rome.
The Ponte Salario, also called Ponte Salaro during the Middle Ages, is a road bridge in Rome, Italy, whose origins date back to the Roman period. In antiquity, it lay outside the city limits, 3 km north of the Porta Collina, at the point where the Via Salaria crossed the Aniene, a tributary of the Tiber. The visible side arches are assumed to originate from the first stone structure built during the 1st century BC.
The Bridge of Cava da Velha is a Roman bridge, situated in the civil parish of Castro Laboreiro e Lamas de Mouro, in the municipality of Melgaço in northern Portuguese district of Viana do Castelo.
