The AMBER Barrier Atlas (copyright-protected)

Over the past three years (by 2020), available data had been compiled for hundreds of rivers within each of the EU countries. This task required contacting dozens of different organizations responsible for different river basins. From an informal survey conducted in 36 countries, the picture of currently existing barrier data was gathered. The data in this inventory was gathered from local, national, regional, and global databases and includes information on barrier location, type, and height.