A building site in the heart of the city of Rotterdam challenged the currently available dredging tools. Contractor Martens & van Oord needed to remove clay but was hindered by the presence of piles. Damen Dredging Equipment made a special cutter head meeting the tight schedule.

The project concerned is a Market Hall in the city centre of Rotterdam, where a covered market with 228 apartments will be constructed. More importantly, the complex will include an underground 4-storey car park. The contractor had to dig the site to the right depth – no easy job due to the presence of 2.500 piles. Moreover, the bottom of the excavation site was pure clay, which is notoriously difficult to dredge.