“The consequences are dramatic”: Isar Krüner Weir ran dry several times. “Some people find it funny when the Isar disappears – the fish don’t,” says Hans-Peter Schamderl.
Schamerl has been calling for a so-called ballast basin above the Krün weir for years. There are also successful models from the Technical University of Munich at the test facility in Obernach. Gravel removal would therefore be possible at the gravel trap.