1.1 km Road Upgrade

The Saanenmöserstrasse Renewal project covered a 1.1 km section between Ledigraben and Rychestei, divided into two lots, each approximately 550 meters long. This major infrastructure upgrade involved renewing the entire road surface and foundation layers, widening the road space, and constructing or adapting parking lots, forecourts, paths, and agricultural roads.

New Retaining Walls Built

Construction activities included creating verges, widening curves, and building new retaining walls on the valley side using micropile foundations and tension piles for support. Natural stone retaining walls on the uphill side were retained but rehabilitated, and horizontal drains were installed to mitigate wet landslides. The new road drainage system was also completed, replacing all old drainage elements and ensuring proper water discharge.

Traffic Managed Efficiently

Significant challenges were addressed, including managing construction under heavy traffic, within a tight schedule, and in constrained space conditions. Single-lane traffic guidance was controlled by a radar-controlled traffic light system, ensuring minimal disruption to the high traffic volume. Construction was limited to 400-meter sections at a time, with material handling done off-site.

Completed On Schedule

Key contributors to the project included Implenia Switzerland Ltd for execution, and Theiler Ingenieure AG for engineering. The project was completed on schedule, beginning in April 2020 and finishing in June 2022. The construction volume amounted to 6 million CHF, benefiting local infrastructure and travel efficiency on the Saanenmöserstrasse.