Project order motorway section N4 Zürich, 1990 - 2008

Section 4.1.4. of the national road closed the gap in the western bypass between the Uetlibergtunnel and the existing motorway Zurich-Chur. In the process, important local recreation areas of the Allmend Brunau and the Sihl River area are crossed. In cooperation between structural engineering, landscape architecture and architecture, the ideal integration of the various necessary structures were developed. In the process, all design phases from conceptual line management to detailing of the noise protection walls were run through. Landscape, bridges, gallery buildings and tunnel portals combine to form a new whole that unites the complex demands of a local recreation area with the requirements of automobile traffic.