Synthesis of SBW belastingen

The Dutch Water Act (in Dutch: 'Waterwet 2009') stipulates that water boards must assess the quality of their primary water defences every six years. The Statutory Safety Assessment Suite (in Dutch: 'Wettelijk Toetsinstrumentarium', or shortly WTI) prescribes the rules to be applied. The WTI mainly comprises of the Safety Test Regulations (VTV), the Hydraulic Boundary Conditions (HBC) and the underlying Technical Reports and Guidelines. The HBC must be determined and established by the Minister of Transport, Public Works and Water Management every six years. The scope of the SBW-Belastingen project concerns the filling in of the main knowledge gaps in the determination of the HBC, insofar as they fall under one of the four pillars of SBWBelastingen: statistics, physics, probabilistics, uncertainty analysis. This new knowledge is obtained by means of site measurements, laboratory research, models and desk studies. A significant amount of research, covering all four pillars of SBW-Belastingen, has been performed in the period 2008-2010. This synthesis report summarises the main results from the research performed within the framework of SBW-Belastingen during the years 2008-2010. The report will give a general overview of all research topics addressed before the start of SBW-Belastingen as well as a more detailed description of the progress: conclusions and recommendations of the research topics addressed within the framework of SBW-Belastingen in the period 2008-2011. The result of this synthesis is a statement of the performed research so far and a recommendation for research to be performed in the period 2011-2016.