First the demands and the boundary conditions are set for the complete protection system; after that the protection system will be split in the three subsections (primary: peripheral levees, secondary: canal levees and watermanagement and tertiary: structural integrety housing). For each of these protection systems an analysis will be made; this analysis will be used to come up with possible alternatives for solving the problems. These alternatives are elaborated to some extent to be able to make a good comparison and afterwards a choice of which alternative is favorable. The chosen alternative will be worked on in more detail in the last stage of the project; the results will be presented in the final report. The set-up of this interim report is as follows: the second chapter contains a revised version of the plan of approach, which gives the background information and the goals of the project. Using these goals the program of requirements is formulated in chapter three. In chapter four a concept of how to deal with the primary and secondary protection is chosen; in the two following chapters (five and six) the primary and secondary alternatives are elaborated. Chapter seven deals with the solutions for the tertiary protection system. All is brought back together again in the final chapter, the conclusion. This conclusion will be the starting point for the next phase.