Summary:

The authors performed the preliminary analysis of the silting conditions of the reservoir Otmuchów. The specific of this reservoir is it's geographic localiza-tion in catchment and hydrotechnic functions. The reservoir Otmuchów-Nysa
cascade is localized in the middle sector of the Nysa Kłodzka river in south-west, upland region of the Opole District. The main characteristic of the amount of se-diments settled in the reservoir, the physical sediment properties for different re-servoir zones are presented. The authors have also analyzed the silting conditions in this reservoir, and the changes of the reservoir capacit.