Zurich South motorway triangle: Sihl bridges
Project overview
The bridges are located above the Allmend Brunau recreational area in the city of Zurich, and link the A3 motorway from Zurich and from Chur with the new Uetliberg tunnel. The twin bridges are direction-specific, both comprising two traffic lanes and a hard shoulder. Key dimensions: 1,400 metres bridge length, span widths of up to 50 metres, column heights of up to 12 metres. Longitudinal construction: prestressed curved and haunched-girder concrete bridges; transverse construction: box profiles with cantilever plates, parapets and noise barriers.
Client
Office of Civil Engineering, Building Department, canton of Zurich
Our services
Implementation of high standards of design. Preparation of preliminary project and construction project, invitation to tender and construction documents, site management. Execution without interruption of motorway traffic. Execution of construction above river, railway line and cantonal road.