Start of construction: December 2007
Construction volume (value of our services): 742 M CHF
Construction of an underground pumped-storage power station.
Construction volume (value of our services): 165 M EUR
The design was carried out by Technisches Büro, Implenia's, then Bilfinger's, in-house Structural Design department.
Start of construction: October 2007
The bridges were longitudinally prestressed with BBV tendons of various sizes.