Repair and maintenance
Rijkswaterstaat, the Dutch Directorate-General for Public Works and Water Management, has outsourced the maintenance of the Oosterscheldekering, with all adjacent locks, jetties, quays, bridges and viaducts, to civil contractor VolkerWessels. The project is executed based on a UAV-GC performance contract. The most striking maintenance is the preservation of the 65 pillar structures, 32 integrated sliding doors and 2 level measuring stations. Due to the continuous influence of seawater on the construction, the steel must be coated regularly. Besides this, the integral maintenance and repair of all electrical and mechanical installations and the maintenance of the structures, roads and waterways has to be carried out as well.