Location: Kühtai – Austria
Start of construction: October 2021
Status: Under construction
Type: Pumped-storage power plant – excavation work, workshop maintenance
Client: Arge SKW Kühtai

Location: Linz – Austria
Start of construction: March 2021
Status: Completion August 2022
Type: Road tunnel – reinforcement and concrete works
Length: Intersection areas
Client: ICM Construction GmbH

Location: Jesenice – Slovenia
Start of construction: October 2020
Status: Completed April 2021
Type: Railway tunnel – refurbishment, excavation, reinforcement, and concreting works
Length: Approx. 4,000 meters
Client: STRABAG AG

Location: Arosa, Switzerland
Construction start: September 2020
Status: Completed November 2021
Type: Railway tunnel – excavation works, inner lining using sprayed concrete
Length: 299 meters
Client: Heitcamp Construction Swiss GmbH

Location: Brandberg – Germany
Start of construction: August 2018
Status: Completed November 2021
Type: Road tunnel – New construction (excavation, reinforcement, and concreting works)
Length: 765 meters
Client: Arge Tunnel Brandberg – Baresel – Heitkamp

Location: Municipality of Spital am Semmering – Austria
Start of construction: May 2017
Status: Under construction
Type: Railway tunnel – New construction (excavation, reinforcement, and concreting works)
Length: Approx. 13,000 meters
Client: Arge Tunnel Fröschnitzgraben

Location: St. Kanzian – Austria
Start of construction: May 2016
Status: Completed – September 2019
Type: Railway tunnel – refurbishment, excavation, reinforcement, and concreting works
Length: Stein Tunnel (1,535 meters) and Lind Tunnel (451 meters)
Client: Baresel GmbH

Location: Gloggnitz – Austria
Start of construction: August 2015
Status: Under construction
Type: Railway tunnel – New construction (excavation, reinforcement, and concreting works)
Length: Approx. 7,500 meters
Client: Arge Tunnel Semmering SBT 1.1 – Implenia – Hochtief – Thyssen Schachtbau