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Underwater Concrete Base for Europe’s Deepest Parking Garage
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Underwater Concrete Base for Europe’s Deepest Parking Garage


Leiden, Netherlands – Leiden is a university city in the province of South Holland, which is mainly known for being the birthplace of Rembrandt. The Lammermarkt is an area with a park in the center of the city and is used for festivals and events. In addition, the picturesque “Molen de Valk”, also known as “The Falcon” is located here, a stone windmill that was built in 1785 and is now one of the distinctive sights of the city.

An underground parking garage is currently being built under the Lammermarkt. With a total depth of 22 meters, it will be the deepest underground parking garage in the Netherlands and even the entire the EU.

BAUER Funderingstechniek B.V., the Dutch subsidiary of BAUER Spezialtiefbau GmbH, constructed an underwater concrete base with 585 GEWI piles on behalf of BESIX and Dura Vermeer Groep NV. Drilling has been carried out to a depth of 55 meters. Three small-diameter drilling rigs on pontoons from KLEMM Bohrtechnik GmbH were used for this.

In addition, Bauer pumped away and de-sanded the drilling fluid under water. The work was completed in November 2015; the underground parking garage with its 525 parking spaces will be completely finished by 2017.

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