The methodological and practical issues in respect of assessment of the flood-plain and stream-way complex of the Berezhnytsya river are presented in the article. Researched river is one of the Ukrainian Carpathians minor rivers and constituted the right-bank tributary of the Dniester river. The presented study typify the stream-way segments. Furthermore were shown identification of the reasons of decreasing the qualitative characteristics of the Berezhnytsya flood-plain and stream-way complex. The set of works to stop processes that are destructive for the river and its ecosystem should be made.