Open invitation to tender, deadline 29/10/2020, for detailed project, bid documents and construction of the 2.1km Kaiserstuhl tunnel on new Lungern North - Giswil South section of the N8. The duration of the contract is from 01/03/2021 to 31/12/2032. For further information on tender documents please click here (German/French) and here. Contact Hoch- und Tiefbauamt HTA, Sarnen, email hta@ow.ch. 39/20.
