The map shows European river water bodies with significant pressures from barriers. ‘Significant’ means that the pressure contributes to an impact that may result in failing to meet the WFD objectives of not having at least good status. Each redish line on the map indicates a river water body affected by barriers according to the country-specific assessment system of significant pressures. The map was created from WISE-WFD data reported for the 2nd RBMPs under the WFD (EU-27, and Norway)