Swietelsky AG
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Tunnel construction

Railway and road tunnels not only shorten distances but also make alpine zones more attractive as a habitat for humans and animals. Shifting traffic underground conserves natural resources and prevents noise development. In growing urban areas, underground tunnels guarantee environmentally friendly and efficient mobility. As a pioneer in both road construction and railway construction, SWIETELSKY recognised the potential of tunnel construction early on. By participating in important infrastructure projects, the company was able to make its mark, becoming a leading specialist in this field as well. What distinguishes SWIETELSKY from its competitors is its decades of experience in dealing with geological specificities, its skill in applying high-tech machines and processes, and its planners’ engineering know-how.

Category
Railway tunnels
Galleries, caverns, shafts
Road tunnels
Subway tunnels

Current projects

01/05
  • Tunnel Altenmarkt Betriebsgebäude, Trostberg - Tunnel construction
    Tunnel Altenmarkt Betriebsgebäude, Trostberg
    Category
    Tunnel construction
    Country
    Germany
  • Karawankentunnel, Rosenthal - Tunnel construction
    Karawankentunnel, Rosenthal
    Category
    Tunnel construction
    Country
    Austria
  • Stuttgart 21-Tunnel, Stuttgart - Tunnel construction
    Stuttgart 21-Tunnel, Stuttgart
    Category
    Tunnel construction
    Country
    Germany
  • Semmeringtunnel SBT 2.1, Steinhaus am Semmering - Tunnel construction
    Semmeringtunnel SBT 2.1, Steinhaus am Semmering
    Category
    Tunnel construction
    Country
    Austria
  • Tübbingwerk, Neunkirchen - Tunnel construction
    Tübbingwerk, Neunkirchen
    Category
    Tunnel construction
    Country
    Austria
  • Bosslertunnel, Neubaustrecke Wendlingen-Ulm - Tunnel construction
    Bosslertunnel, Neubaustrecke Wendlingen-Ulm
    Category
    Tunnel construction
    Country
    Germany
  • Steinbühltunnel, Neubaustrecke Wendlingen-Ulm - Tunnel construction
    Steinbühltunnel, Neubaustrecke Wendlingen-Ulm
    Category
    Tunnel construction
    Country
    Germany

Current lighthouse project

POWER PLANT EXPANSION KÜHTAI, Austria

TIWAG, a Tyrolean hydropower company, has launched the Kühtai pumped storage plant project, an extension of the existing Sellrain-Silz power plant group. The construction site is in the province of Tyrol, approx. 30 km due west of Innsbruck and approx. 2,000 m above sea level. SWIETELSKY was awarded the contract for the Kühtai extension project’s main construction lot as part of a bidding consortium. The contract has a net value of approx. EUR 425 million. Work is scheduled to be completed at the end of 2026. The expansion of the power plant facilities provides for an additional reservoir in Längental with a capacity of 31 million m³ plus an underground pumped storage plant as a second upper stage. The storage capacity can thus be increased by around 50%, with 216 million kWh more electricity generated per year using the additional water.

  • POWER PLANT EXPANSION KÜHTAI, Austria 1
  • POWER PLANT EXPANSION KÜHTAI, Austria 2
  • POWER PLANT EXPANSION KÜHTAI, Austria 3
01/05

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Swietelsky Tunnelbau GmbH & Co KG

Swietelsky Tunnelbau GmbH & Co KG
Zentrale

Innsbrucker Bundesstraße 61
5020 Salzburg
Austria

Tel: 0043 662 827603
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Swietelsky Tunnelbau GmbH & Co KG
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Kufstein/ Schwoich

Kufsteiner Wald 28
6334 Schwoich
Austria

Tel: 0043 5372 63600
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HTB Baugesellschaft m.b.H.
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Zell am See/ Fusch

Achenstraße 2
5672 Fusch an der Großglocknerstraße
Austria

Tel: 0043 6546 40116
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HTB Baugesellschaft m.b.H.
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Zirl

Neuraut 1
6170 Zirl
Austria

Tel: 0043 512 41515
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HTB Baugesellschaft m.b.H.
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Lienz

Bürgeraustraße 30
9900 Lienz
Austria

Tel: 0043 4852 667721
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HTB Baugesellschaft m.b.H.
Swietelsky AG

Swietelsky AG
ZNL Oberösterreich Bereich Spezialtiefbau
Standort Wels

Hans-Sachs-Straße 103
4600 Wels
Austria

Tel: +43 7242 601600
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Swietelsky AG
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Zentrale

Gewerbepark Pitztal 16
6471 Arzl im Pitztal
Austria

Tel: 0043 5412 639750
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HTB Baugesellschaft m.b.H.
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Klagenfurt

Josef-Sablatnig-Straße 251
9020 Klagenfurt
Austria

Tel: 0043 463 33533700
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HTB Baugesellschaft m.b.H.
HTB Baugesellschaft m.b.H.

HTB Baugesellschaft m.b.H.
Standort Nüziders

Landstraße 19
6714 Nüziders
Austria

Tel: 0043 5552 34739
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HTB Baugesellschaft m.b.H.

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