Turkey, Uluabat
2006 – 2010

Energy requirements in Turkey are set to constantly rise bearing in mind the growth of both of its cities and industrial regions. To disengage itself as far as possible from the oil and gas market, the country is tapping its hydropower resources. A 100-megawatt HEP plant was constructed at the Uluabat Lake near the city of Bursa supplied via a tunnel of just under eleven kilometers from the already finished Cinarcik reservoir.

For this tunnel, the S-330 Earth Pressure Balance Shield started tunnelling in June 2006. On the jobsite from the Herrenknecht Group: the rail-mounted logistics system from MSD for removing the excavated material and transferring/installing the segments. After a stretch of just under ven kilometers through challenging ground conditions, the EPB Shield reached the target shaft in April 2010. The power plant went on line at the end of 2010 and caters for the ecological demands in that its waste water of fresh water quality is piped to the Lake Uluabat that is a biotope rich in species and is an attraction for many tourists.

Data Sheet

Country, Location

Turkey, Uluabat


2006 – 2010




Shale, sandstone

Tunnelling length

10,945 m

Machine Data

1x EPB Shield:
Diameter: 4,990 mm
Lining method: Segmental lining
Cutterhead power: 1,500 kW
Torque: 2,048 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.