Brusio spiral viaduct
Brusio spiral viaduct Viadotto elicoidale di Brusio | |
|---|---|
The Bernina Express on the viaduct | |
| Coordinates | 46°15′14″N 10°07′40″E / 46.25389°N 10.12778°E |
| Carries | Rhaetian Railway |
| Locale | Brusio, Switzerland |
| Official name | Viadotto elicoidale di Brusio |
| Other name(s) | Kreisviadukt Brusio |
| Owner | Rhaetian Railway |
| Maintained by | Rhaetian Railway |
| Characteristics | |
| Design | Spiral arch bridge, viaduct |
| Material | Stone |
| Total length | 110 m (360 ft) |
| No. of spans | 9, each of 10 m (33 ft) |
| History | |
| Opened | 1 July 1908 |
| Location | |
The Brusio spiral viaduct (or Brusio circular viaduct; Italian: Viadotto elicoidale di Brusio, German: Kreisviadukt Brusio) is a single-track nine-arched stone spiral railway viaduct on the Bernina Railway. It was opened on 1 July 1908.
A key structure of the World Heritage Site-listed Bernina Railway, it is located near Brusio, in the Canton of Graubünden, Switzerland, and was built to limit the railway's gradient at that location within its specified maximum of 7%. It is considered to be one of the architectural highlights of the Rhaetian Railway.