Einhausung Schwamendingen (ZH) – Lärmschutzmassnahme

Short description

Construction of the new opencast tunnel with a length of 940 metres, a width of 30 metres and a height of 8-10 metres.

The project

The enclosure of the N01/40 national road between the Aubrugg motorway junction and the Schöneichtunnel over a length of just under one kilometre will create a 30-metre wide utility building that is unique in Switzerland. A continuous green space and meeting place on the roof of the building, the future Ueberlandpark, will be accessible to the local population via ramps, stairs and lifts. It is intended to reconnect the neighbourhood, enhance the quality of life and living and become a recreational zone. The enclosure almost completely eliminates the nuisances caused by the motorway, such as noise and exhaust fumes. ASTRA is financing the groundbreaking project together with the canton and the city of Zurich.

Services in detail

  • Concrete: 115'000 m3
  • Laying concrete girders
    • Quantity: 234 pieces
    • Weight per beam: 70 tons
  • Special foundations: CHF 60 million
  • Microtunneling: 1 km


General challenges:

  • Ongoing traffic throughout the whole project 
  • 2 x 2 lanes
  • Environmental pollution (noise, water)
  • 23 Interim appointments (malus system)
  • Complexity
  • At a length of 450 m the tram tunnel runs under the existing motorway in snake form; only little pressure/weight may be applied to this tunnel
  • Moving the precast concrete girders
  • Geology / Groundwater level
  • Billing for 8,500 individual items
  • Demarcation of performance
  • Space requirement as the project is located within city limits
  • ARGE formation
  • Staffing and capacity: management, commercial staff, inventory
  • Knowhow coverage

Further information

The ARGE has already applied Building Information Modeling (BIM) in the submission phase.