JÄGER is internationally active in the realm of underground construction. Among the core competences are conventional tunneling by drill and blast and NATM, mechanical excavation using tunnel boring machines, as well as cavern and shaft construction.
In addition to carrying out underground construction projects as a contractor, JÄGER offers tunnel construction technology services in the form of consultancy and expert personnel and equipment provision.
JÄGER has already completed more than 135 km of road and railway tunnels, both at home and abroad.
Hydroelectric power plants
JÄGER has been successfully involved in power plant construction since 1922.
Caverns and shafts
JÄGER stands for experience and expertise in cavern and shaft construction.
Potable water and irrigation tunnels
JÄGER has built potable water and irrigation tunnels in South America, Sub-Saharan Africa and southern Europe.
Special underground projects
Ski tunnels, escape tunnels, exploration tunnels amongst other special projects complete our portfolio.