Hundwilertobel-Brücke, Reinforced concrete arch bridge in Appenzell Ausserrhoden, Switzerland.
The Hundwilertobel-Brücke is a reinforced concrete arch bridge that crosses the Urnäsch valley and connects two communities. The structure spans approximately 269 meters in length and rises about 77 meters above the valley floor, with the main arch alone stretching over 143 meters.
The original structure was built in 1925 to span the valley, but its steel framework deteriorated as traffic increased. In 1992, a new concrete structure replaced it at the same location to meet contemporary needs.
The bridge links two small communities and demonstrates how contemporary engineering fits into rural landscapes. Locals use it daily, and it has become part of how people see this corner of Appenzell.
The bridge is accessible from the main road network and features a continuous roadway approximately 10.76 meters wide. When visiting, having good light helps you see the construction details and the valley below clearly.
In 2017 the bridge received comprehensive protective nets totaling about 720 square meters, a project requiring significant investment. These nets protect not only visitors but also represent a visible sign of modern safety standards in Swiss infrastructure.
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