Val ‎d`Astico Hydropower Pipeline
Italy, Val d`Astico

In the northern Italian province of Vicenza, a project was initiated for water-powered generation of renewable energy. The aim was to use the water from the Asiago plateau and the Astico valley to power a turbine to generate electricity. 
The HDD Rig H-035 of the HK250T type bored uphill from September 2008. The installation of an eight-inch steel pipeline in the one-kilometer-long bore involved managing a difference in altitude of 450 meters. During installation, the HDD Rig encountered and easily mastered rock strengths of up to 160 megapascals and numerous unforeseen cavities and crevices.

Data Sheet

Country, Location

Italy, Val d`Astico






Rock, limestone

Tunnelling length

920 m

Machine Data

1x HDD Rig:
Diameter: 203 mm
Lining method: Pipeline
Pull force: 250 t
Torque: 90 kNm

Your contact person Contact us

Steffen Dubé President and General Manager Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser Commercial Manager Herrenknecht Tunnelling Systems USA, Inc.