Vienna Metro Line U1/9 – Altes Landgut


The metro line U1 in Vienna, Austria is to be extended from Reumannplatz station to Rothneusiedl. Four new stations and twin running tunnels are to be constructed in the first exansion phase. The extension will provide optimal local and regional connections to the residents and workplaces of the redevelopment area Rothneusiedl.

Between Reumannplatz and Per-Albin-Hannsson-Siedlung (Donauländebahn), the U1 will replace the existing tram line 67. Via the stations Trostrasße and Altes Landgeut, the line will connect the densely populated areas along central parts of Favoritenstraße. Similarly, Alaudgasse and Stockholmer Platz stations will connect to the high-density areas of the Per-Albin-Hannsson-Siedlung (east and west). The university area south of the Favoriten junction will also be connected. The construction lot U1/9 was the central lot of the mined tunnels. The running tunnels have a length of approx. 700m and the Altes Landgut station approx. 120m. Construction started with the 40m-deep diaphragm wall Shaft L at Altes Landgut. The running tunnels were driven from the shaft with a sprayed concrete lining. The platform tunnel was initially constructed using a side drift followed by a single-stage enlargement. A further shaft and adit were constructed at the end of the station to create an emergency escape at Maria-Rekker-Gasse. IGT was responsible for the following:


  • Geological and hydrogeological documentation during construction of the tunnels and shafts.
  • Comparison of the tunnel design and the actual observed ground conditions
  • Documentation according to the Austrian standard 2203-1 and visualisation against chainage
  • Daily interpretation of the monitoring results above and below ground
    Analysis of groundwater level measurements
    Administration and servicing of databases
    Creation of weekly review and preview data
    Input to the selection of long-term behaviour monitoring measures
    Data management on project servers

Project Facts

  • Project

    Vienna Metro Line U1/9 – Altes Landgut

  • Client

    Wiener Linien GmbH und Co KG Department in charge: Vienna City Council MA-29 Bridges and Underground Works

  • Function

    Geological and hydrogeological documentation, analysis and interpretation of geotechnical monitoring results, creation of interim and final reports

  • Technical Facts

    Twin-bore running tunnels and Altes Landgut station. Running tunnel length 700m, station length 120m. Conventional tunnelling with sprayed concrete lining throughout. Two shafts with diaphragm walls in the station area. Platform tunnels and cross passages.

Print Factsheet


  • Dipl.-Ing. Martin Schmidt

    „MA-29 and Wiener Linien were very pleased with the services of the engineers from IGT Geotechnik und Tunnelbau during the excavation of lot U1/9. They always dependable, amicable and helpful and stood by us with competence and expertise.“

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