Acta Scientiarum Polonorum

Design and maintenance of most water engineering structures is inseparably linked to a set of relevant environmental
conditions. Since the latter undergo gradual transformations, the former are also dynamic. This
paper provides a brief analysis of deep riverbed erosion occurring in the Vistula river reach near the outlet of
Wilanówka stream. The resulting changes of the valley’s geomorphology are explained, as well as the detrimental
effects they have on the technical condition and functionality of the river engineering structures and
the levees within the analysed river reach. Selected requirements for water engineering structures according
to the Polish regulations are discussed.