The Blato River watershed was determined as especially vulnerable to flood hazards zone regarding the developed Bulgarian Flood Risk Management Plans. With regard to the climate change the number of such hazards increases. To prevent and mitigate the consequences various measures are applied in practice. Some of them are connected to the implementation of already existing engineering solutions. But in case of emergency some untypical temporary solutions are also introduced. In line with the detected severe climate pressure the need of new or additional flood mitigation measures increases. This requires a properly consideration of the state of the Blato River watershed, accounting the existing structures, their current state and potential for further use considering floods and climate change. As a step in this direction this material is briefly presenting the results of a study observing the anthropogenic works influence concerning the water erosion processes of the Blato River watershed. The examination is provided considering the erosion vulnerability concerning the detected flood processes. For the purpose in a geographic information system mapping environment, it is provided an analysis considering the Blato River watershed specifics, accounting the existing flood mitigation anthropogenic works. Obtained results clarify the effect of such implementation in case of floods and can be a good starting point in the process of future additional floods mitigation measures investigation.

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