The aim of this study was to verify previous assumptions and further improvement of the algorithm allows to indication of priority streams and ditches to perform maintenance work. Analyses for 24 streams and ditches of Obra’s basin within the South Obra Canal were carried out. Their results were compared on the basis of data from the years of 2000–2009, obtained from the Wielkpolska Land Reclamation and Water Units Board in Leszno. From profiles adopted to analyses, the main influence for place of streams or drainage ditches in the ranking of the maintenance needs, the catchment area, the average length, width and depth of the watercourse were. Essential importance of the current technical condition of facilities and buildings (the function of existing neglect and lack of maintenance) were given. Also, there was made an attempt in determine of importance of maintenance needs rank in facilities as a part of the water tourist route in the catchment covered by Natura 2000 areas. The result of the analyzes is a statement of differences in hierarchy of the maintenance needs on the basis of the proposed method and the actual scope of works carried out in 2000–2009 in the streams and ditches. As a main reason it can be pointed the fact that with a small amount of funding for maintenance of the equipment. In the first place works disaster of an intervention were conducted. The research and analysis showed that the method of index maintenance needs work can be a complementary tool in making decisions on efficient spending of funds in terms of their deficiencies.

23-32