Summary:

The analysis of flow and river bed conditions of the Vistula River on section km 599-600 km are presented in the paper. That section of the river has not been regulated yet. River bed is irregular with numerous islands and rich vegetation. Due to nature value of the river section the nature reserve “Kępa Antonińska” was established there. The river causes a risk of erosion of flood protection embankments. However, technical solutions for improving of river bed stability can not be applied there due to requirements of environmental protection. The analysis of solutions suggested by naturalists indicated that are not considering in satisfactorily degree the specific of fluvial processes. Application of those solutions will lead to deterioration of morphological condition in river bed on the nature reserve area.