Underground Civil Works

Donostia Underground. Bentaberri Tunnel

Owner: ETS
Client: UTE Metro Benta Berri

Works carried out in U.T.E.
Excavation carried out using heavy miners:

2,200 m of line tunnel with an average section of 60 m². A station 120 m long and 190 m² in section.

Construction of two intermediate attack galleries of 490 and 220 m. Construction of shafts and lifts using raise boring.