| Overall project and construction management: |
| Engineering Department of Canton Zurich, Office of Civil and Underground Engineering, National Highways Dept., Zurich/CH |
| Project design and construction supervision: |
| Tunnelling and overall
coordination Amberg Engineering Ltd., Regensdorf (tunnelling and overall coordination) Geology Dr. Heinrich Jäckli AG, Zurich Cut and cover sections Fietz AG, civil engineers, Zurich (Wannenboden excavation and portal station) Henauer + Gugler AG, engineering company, Zurich (Reppisch Valley excavation and ventilation station) Hans Eichenberger AG, engineers, Zurich (Gänziloo excavation and portal station) |
| Construction |
| Tunnel and excavation
Wannenboden and Gänziloo Joint Venture "Uetli", led by Zschokke Locher, Zurich; Murer AG, Erstfeld; Prader AG, Tunnelling, Zurich; CSC Bauunternehmung AG, Construction, Zurich; Wayss & Freytag, Munich/Frankfurt; Alpine Mayreder Bau GmbH, Salzburg-Wals; ZüblinSchlittlerSpaltenstein Bau AG, Zurich Excavation Reppisch Valley Joint Venture "Voreinschnitt Reppischtal", led by Marti AG Bauunternehmung, Zürich Eberhard AG Hastag Hans Stutz AG Schilling AG |
