Project Participants
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