Gründjitobel Viaduct

46.824760299.691572191270Koordinaten: 46 ° 49 ' 29.1 "N, 9 ° 41' 29.7 " E; CH1903: 771887/188424

Gründjitobelbach

The Gründjitobel Viaduct is a single-track railway bridge on the Rhaetian Railway in the field of community Arosa (formerly Long Meadow ) in the canton of Graubünden in Switzerland.

Location

The building is part of the narrow gauge railway line from Chur to Arosa, it is located between Peist and long meadow area mat Gründji. The viaduct carries the railway line over the Gründjitobel, a deep, with sandy erosion formations ( " Steimannli " ) provided Moränenschlucht of gravel.

History

Because of the difficult geological conditions in Schanfigg had to be created for the privately built 1912-1914 Chur- Arosa line a total of 19 tunnels and 52 bridges. Most bridges have been created in the classical manner of stone, a building material, which the nearby Plessur presented in sufficient quantities. In places where the ground presented particularly restless, iron bridges were created. A completely new design was due to the distance to be overcome when Gründjitobel Viaduct and the little southeastern Langwieser viaduct used: Instead of a bridge with multiple openings resulted in a sensational building of reinforced concrete with a large wingspan. The risk that piers are washed away in the river, could thus be successfully met; since the existence of the web, the erosion could this structure because even not harm.

Specifications

The Gründjitobel viaduct is 145 m long. The main opening consists of an arc of 85 m span and 46 m above the valley floor. The whole building was virtually trouble-free and could be completed in just one year. Together with the larger Langwieser viaduct was one of Gründjitobel Viaduct in its construction to the greatest strained railway bridges in the world. The falsework which the construction of the bridge in Bern Halen already was used, came as the Langwieser Viaduct by Richard Coray from Trin. On July 10, 1913 began with its construction, and on 26 August 1913, was completed. The massive main arch in the tradition of Robert Maillart with horizontal rectangular cross-section was concreted on 15 September of the same year, the completion of the building took place on 1 July 1914., The the " father" of Halenbrücke, engineer Jacob Bolliger, planned plant was built by the Müller, Zeerleder and Gobat which the entire route Peist -Arosa created with the exception of Langwieser section.

Gallery

View from the Gründjitobel on the viaduct

Viaduct with regional

View from Gründji

Swell

• Hans -Bernhard Schönborn, the Rhaetian Railway, past and present, Geramond 2009, ISBN 978-3-7654-7162-9, p 119
• Marcel Just, Christof Kübler, Matthias Noell ( Eds.) Arosa - Modernity in the mountains, gta Verlag, Zurich 2007, ISBN 978-3-85676-214-8, p 14
• Hans Domenig: From Tingelzüglein to mountain railway, in: Terra Grischuna, Vol 59, Issue 1, Terra Grischuna Publishers, Chur 2000, ISSN 1011-5196.
• Railway Journal, The RhB, specials part 3, Hermann Merker Verlag GmbH Fürstenfeld Bruck, 1998, pp. 58 ff ISBN 3-89610-038-6.
• Hans Hofmann: Chur- Arosa, from the construction and operation of the railway, 2nd edition, published by H. Hofmann Calanda, Chur 1989/93, ISBN 3-905260-11-5.
• Catherine Hess, Paul Emanuel Müller: About the wild Plessur, in: Terra Grischuna, Volume 48, Issue 1, Terra Grischuna Publisher, Chur, 1990, ISSN 1011-5196.
• A. Jenny: Arosa and Chur- Arosa line, Orell Füssli of Travel No. 372-374 (nd).
• Hartmann: The Chur- Arosa line, in: Homeland Security, Volume X, 1915.
• H. Hiltbrunner: Graubünden: The Chur- Arosa line and the spa town of Arosa (Separate deduction), publishing Sadag, Geneva oJ (c. 1915 ).