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Ponte Sant'Angelo in Rome, Italy Roman stone pillar bridge in Trier, Germany. The arches were added in the 14th century. Pons Cestius, Rome, during a flood. This is a list of Roman bridges. The Romans were the world's first major bridge builders. [1] The following constitutes an attempt to list all known surviving remains of Roman 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 BC stone was being used.
The Pont du Gard is an ancient Roman aqueduct bridge built in the first century AD to carry water over 50 km (31 mi) to the Roman colony of Nemausus . [3] It crosses the river Gardon near the town of Vers-Pont-du-Gard in southern France. The Pont du Gard is one of the best preserved Roman aqueduct bridges.
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The Ponte San Lorenzo was one of four Roman bridges in ancient Padua crossing the Medoacus (modern Bacchiglione). [3] Located in the Via San Francesco, the three-arched bridge is today for the most part framed by surrounding buildings, which have moved closer to the river over the centuries. [3]
The bridge with the most slender piers was the three-span Ponte San Lorenzo in Padua, Italy. A favourable ratio between pier thickness and span is considered a particularly important parameter in bridge building, since wide openings reduce stream velocities which tend to undermine the foundations and cause collapse. [19]
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 (Publius Aelius Hadrianus), to span the Tiber from the city centre to his newly constructed mausoleum, now the towering Castel Sant'Angelo.
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