Municipality of Hägendorf - Canalization of the Cholersbach
Due to the poor condition of the structure, the concrete surface in the municipality had to be completely replaced. As part of the project, the diameter was adjusted to allow for the drainage capacity of a 1 in 100 year flood event. The existing bed made of stone blocks was replaced by a gravel bed.
The Frey+Gnehm Ingenieure AG was commissioned by the municipality with the planning, overall management and construction management.