the holding and supporting elements are represented and in fig2 the complete protective barrier is shown according to the course of this protective barrier supports or posts 10 12 are set up a predetermined distances apart in the example of execution represented these spacings are greater along straight stretches and smaller along curvatures the supports 10 12 are joined with one another over pipes or pipe rods 14 16 18 which run parallel to one another and span a supporting plane the gaps between the pipe rods 14 16 18 are still rather large and are filled out by reinforcement filling elements which can take on the form of grids 20 or of sheet metal panels 22 in the case of high water protection there is laid in addition a watertight tarpaulin 24 fig2 over the basic structure in order to seal off the stowage wall surface described the supports or posts 10 12 consist of three main supporting elements namely an elongated plate form bottom element an elongated plate form stowage wall element 28 and an elongated plate form bracing element 30 which can be arranged to one another to form a bracing triangle the triangle sides are articulately connected with one another and extend in part beyond the base triangle the bottom element 26 forms the base on the one end of which the stowage wall element or the outer shank 28 is articulated and near the other end of which the bracing element or the supporting shank 10 is articulated the bracing element 30 engages about in the middle of the storage wall.