Rehabilitation of the water reservoir ensures the flood protection in the Isar valley. The construction section comprises the construction of the seepage water tunnel as well as the access structures at both ends of the tunnel.
Railway tunnel provides a modern connection of Zaventem airport close to Brussels to the European high-speed railway system and to E 19 motorway.
The Zurich main station - Altstetten - Oerlikon cross-city line forms the central part of the West- East-axis of the Swiss railway lines. The Weinberg tunnel is the centrepiece of the cross-city line and connects the new through station “Löwenstraße” in Zurich with Oerlikon station.