Marina Tower, Vienna

The Marina Tower is a new high-rise block of 500 residential units being built in Vienna’s 2nd district, close to the city centre on the banks of the Danube. The building also offers space for a kindergarten, a fitness centre, a medical centre, shops and restaurants. The Marina Tower has “Gold” sustainability certification from the Austrian Sustainable Building Council (ÖGNI). The general contractor for the ground-up building work commissioned Implenia to build the construction pit and three basement floors, lay the foundations and handle the dewatering. A diaphragm wall, secured by around 60 anchors, is being built over an area of 3,000 m2 as a single-skin enclosure for the construction pit. Implenia is also building deep foundations down as far as 35 m. 110 bored piles form the foundation for a generous public promenade with direct access to the right bank of the Danube. The “Marina Deck” will form a wide pedestrian bridge over the Handelskai road and provide various options for leisure and recreational activities.

Facts & Figures

General contractor consortium formed by Swietelsky and Dywidag

Scope of contract
Construction pit with three basement floors for a 140 m high building, foundations, dewatering

3,000 m2

Construction pit sealing
6,600 m2 diaphragm wall

9,000 m2 diaphragm wall elements

Temporary anchors
Approximately 60

Bored piles for promenade
Approximately 110

Period of foundation engineering work
September 2018 to April 2019