Tenders Are Invited For Engineering Services – Sissach - Chienbergtunnel / Project Author For Overall Renovation Sia Phases 31 - 53

Engineering Services – Sissach - Chienbergtunnel / Project Author For Overall Renovation Sia Phases 31 - 53. The Sissach Bypass Was Put Into Operation In 2006. The Core Of The Bypass Is The 2,294 Meter Long Chienberg Tunnel. This Consists Of Two Sections Created Using Open-Cast Mining, One Using Cover Construction And A Tunnel Section Created By Mining. Due To The Current Structural Condition, The Chienberg Tunnel Is To Undergo Extensive Repairs After Around 25 Years Of Operation. The Standard-Compliant Repair Measures Must Also Be Implemented On All Engineering Structures Existing In The Project Perimeter Or In The Area Of ​​The Sissach Bypass Road As Well As On The Elements Of The Route. It Is Planned To Implement The Necessary Construction And Bsa Maintenance Measures For The Overall Renovation In 2032/33/34.