Stop logs/Stop gates

Stop logs Wasserwelt Wöhrder See (Nuremberg, Germany)
Stop logs Wasserwelt Wöhrder See (Nuremberg, Germany)
Stop logs (Heilbronn, Germany)
Stop logs (Heilbronn, Germany)
Stop gates treatment plant (Czajka, Poland)
Stop gates treatment plant (Czajka, Poland)
Stop gates treatment plant (Czajka, Poland)
Stop gates treatment plant (Czajka, Poland)