SOB-Sitterviadukt

The SOB-Sitter Viaduct is a stone railway bridge that crosses the Sitter River, built with multiple arches that carry tracks across the valley floor. The structure rises approximately 121 feet (37 meters) and spans a considerable distance to connect different sections of the St. Gallen region.

The viaduct was built in 1910 and formed part of the railway expansion across northeastern Switzerland during early industrialization. Its construction marked a turning point for regional transport infrastructure and allowed faster connections across challenging terrain.

The viaduct stands as a regional landmark that reflects how railways transformed the development of the Appenzell Alps area. Locals and visitors recognize its distinctive form as a symbol of early twentieth-century industrial progress.

The best view of the viaduct comes from paths along the Sitter River, where you can see the arches and stonework from below. The location is easily reached by public transport, and nearby walking trails offer different angles to appreciate the structure.

The viaduct was built without modern explosives or heavy machinery, relying instead on traditional craftsmanship methods required for such large stone structures. The precisely cut and fitted stones show the quality of workmanship from that era.

Location: Herisau

Inception: 1910

Made from material: stone

Address: Wägenwaldstrasse

GPS coordinates: 47.40051,9.32506

Latest update: December 8, 2025 19:49