Nysa Bridge, Roman deck arch bridge in Sultanhisar, Turkey.
The Nysa Bridge is a Roman stone structure crossing a stream with a two-tier design featuring arches and vaults throughout. The construction spans roughly 100 meters and maintains a width of about 6 to 7 meters along its entire length.
The structure was built in the late Roman period and ranks among the largest of its kind after the bridge in Pergamon. It formed part of the infrastructure of an important city that the Romans developed.
The bridge connected different parts of a Roman city where public buildings like theaters served the community. It was one of many structures that allowed daily life and trade to flow between neighborhoods.
The site sits in a rural area and is best reached on foot, as the surroundings are relatively open and flat. Visitors should wear sturdy shoes since the ground can be uneven and there is little shade available.
The bridge was engineered to handle large volumes of water during heavy rainfall with a carefully calculated slope. This hydraulic planning demonstrates how precisely the Romans designed their structures.
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