Project focuses on investigation of these water challenges and to find a solution to decrease the negative flood impact and improve ecological situation in the Uzh River basin and transboundary water sections. Project achievements will be the reliable information of the catchment area, GIS database, 2D models of different scenarios, FH and FR Maps and Flood Risk Management Plans according to EU Directives, researches of retention reservoirs providing information on effective flood protection and spatial planning. Uzhhorod with population 117 000 located downstream suffers floods and water scarcity at the same time. Lack of water causes the ecological problems, water quality deterioration, and riverbed of Uzh River pollution by the invasive species. Project aims to solve this problem in Uzhhorod by development of design documentation on regulating weir construction on the Uzh River and mobile dam application within the city. The project innovations - deciding flood and droughts and negative anthropogenic impact – water pollution by oil products. Also project innovation is application of modern IT, spatial and water engineering tools (2D hydrodynamic modelling, aerial photography, mobile dams). The FloodUZH will benefit to target groups by improving of flood protection in Uzh basin and water regime in Uzhhorod – population of target area, Uzhhorod community, water management authorities, local authorities, NGO.