Herzog & de Meuron
Concept Study
2011
Project
2013–2014
Realization
2014–2015

The Chäserrugg at 2262 meters / 7420 feet is the easternmost peak of the seven mountains that make up the Churfirsten Massif. It rises up gently from the Toggenburg to the north and becomes a steep cliff to the south, plummeting almost 6250 ft down to the Lake of Walensee. The high flat plateau formed by the Hinterrugg, Rosenboden and Chäserrugg stands in great contrast to the steep, precipitous walls of the cliff. Behind this impressive topography, the backdrop of the Alps stretches all the way to the horizon. The region has been accessible since 1972 via the Unterwasser-Iltios-Chäserrugg Cable Car and can be reached in less than an hour from Zurich and St.Gallen.

Ever since the cable car went into operation, the restaurant has been provisionally located in the housing originally built for the construction workers. Now it has been torn down to make room for a new restaurant. The station, a pragmatic steel structure on a concrete foundation typical of the 1970s, has remained and been clad in a different façade. The new mountain restaurant is placed perpendicular to the station, extending horizontally along the mountain panorama towards the south. A large roofed area connects the two structures and creates an outdoor arrival hall.

The new station is constructed in solid wood on a concrete foundation. It was prefabricated by local craftspeople in the valley and assembled on top of the mountain in the course of a summer. The interior was completed the following winter. We decided to use wood because we wanted to echo local tradition. Equally important was a thoughtful exploitation of resources: except for the crane, which was transported by helicopter, all of the parts required for the building were transported by cable car in the course of its regular runs. The excavated earth was used to make the concrete and also as an ingredient of the gravel surfacing.

The restaurant is a long, flexible space, its atmosphere marked by the repetitive woodwork from locally sourced spruce trees. The low-hung roof resting on closely placed columns is the dominant element of the building with a covered terrace in front. Glazed on three sides, the restaurant offers spectacular views of the scenery. Niches with built-in benches and tables occupy the fourth side of the room. Each niche has its own window and thus its own framed view of the mountainscape.

Herzog & de Meuron, 2015

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Process

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Drawings

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Team

Facts

Client
Toggenburg Bergbahnen TBB AG, Unterwasser, Switzerland
Planning
Project Architect: Herzog & de Meuron Basel Ltd, Basel, Switzerland
Construction Management: Ghisleni Partner AG, Rapperswil-Jona, Switzerland
Structural Engineering: Schnetzer Puskas Ingenieure AG, Basel, Switzerland
Structural Engineering: Pirmin Jung Schweiz AG, Sargans, Switzerland
Structural Engineering: Schällibaum AG, Herisau, Switzerland
HVAC Engineering : Amstein & Walthert St. Gallen AG, St. Gallen, Switzerland
Specialist / Consulting
Building Physics: Zimmermann & Leuthe GmbH, Aetigkofen, Switzerland
Catering Consultant: Gastro-Fachplanungen Ruedi Menet, Walzenhausen, Switzerland
Fire Protection Consulting: Amstein & Walthert St. Gallen AG, St. Gallen, Switzerland
Interior Consulting: Michele Rondelli, ZĂĽrich, Switzerland
Contractors
Wood Construction: Blumer-Lehmann ARGE, Gossau SG, Switzerland
Structural Work: Pozzi AG, Wattwil, Switzerland
Metal Work: Tobler Haustechnik + Metallbau AG, Alt St. Johann, Switzerland
Elevators: AS AufzĂĽge AG, St, Gallen, Switzerland
Heating: Lippuner EMT AG, Grabs, Switzlerand
Plumbing: Tobler Haustechnik + Metallbau AG, Neu St. Johann, Switzerland
Electrical: Kolb Elektro AG, Oberriet, Switzerland
Paint Work: Malerei Grob AG, Neu St. Johann, Switzerland
Scaffloding: Roth GerĂĽste AG, Pratteln, Switzerland
Special Collaborators
Snow Assessment Report: WSL-Institut fĂĽr Schnee- und Lawinenforschung SLF, Davos, Switzerland
Test Engineer: Casutt Wyrsch Zwicky, Chur, Switzerland
Wind Assessment Report: I.F.I. Institut fĂĽr Industrieaerodynamik GmbH, Aachen, Germany
Building Data
Site Area: 72'548 sqft, 6'740 sqm
Gross floor area (GFA): 26'909 sqft, 2'500 sqm
GFA above ground: 20'128 sqft, 1'870 sqm
GFA below ground: 6'781 sqft, 630 sqm
Net floor area: 17'545 sqft, 1'630 sqm
Footprint: 14'638 sqft, 1'360 sqm
Length: 147 ft, 45 m
Width: 173 ft, 53 m
Height: 49 ft, 15 m
Gross volume (GV): 391'640 cbft, 11'090 cbm
Links
www.chaeserrugg.ch

Bibliography

Luis Fernández-Galiano (Ed.): “Arquitectura Viva Monografias. Herzog & de Meuron 2013-2017.” Vol. No. 191-192, Madrid, Arquitectura Viva SL, 12.2016.

Location