The bridge through the Schanerloch gorge is part of the impressive road from the city of Dornbirn (Austria) to the hamlet of Ebnit which picturesquely situated by the well of the river Dornbirner Ache at the foot of scenic mountains. The spectacular route to this ancient settlement area is characterized by a series of natural rock tunnels and stone bridges.
Originating from the well known typology of the stone arch bridge, modern technology takes the geometry of the arch to its very limits. The reduction of the arch rise to a statically necessary minimum is combined with a twist along one axis. The latter is also responding to the bending road as a curve immediately follows the bridge in both driving directions. The result is a concrete sculpture that might look unspectacular in plan and from the driver’s point of view, but from the shore of the river winding through the gorge it unveils its compelling fascination: it playfully mimes the frozen dynamic of the mountain road and captures the dramatic place in reinforced concrete.
Perfect in form, a masterpiece of design and statical calculation precisely fixed in the spectacular scenery.
[Text by Marina Hämmerle]
[Photos by Marc Lins]
client: City of Dornbirn
location: Ebniter Straße, 6850 Dornbirn, Austria
architecture: Marte.Marte Architekten ZT GmbH, Weiler
Arch.DI Bernhard Marte
Arch.DI Stefan Marte
overall length: approx. 23m
overall width: 5,50m bis 6,50m
driving clearance (width): minimum 4,75m
reinforced concrete arch: minimum thickness 35cm
conrete volume: approx. 180m³
footing: directly into the adjacent rock wall
costs: approx. 220.000€
start of planning: 2005
start of construction: 2005
completion: 2005