Anthropogenic river alterations and their effects on the flood situations (Bílina River case study)

This paper summarizes the results of research focused on the evaluation of anthropogenic impacts on the formation and process of the flood. The HEM-F methodology, partially modified and supplemented by identifying potential risk parts which during the floods could complicate the water convection, was applied on part of the Bílina River. During mapping were evaluated selected reaches of the Bílina River, and determined watercourse characteristics and the degree of anthropogenic river alterations. The conclusions of the research indicate that more than 50% of the river length shows no significant risk factors that could have influence on the development and flood events