E. Govsha, B. Gjunsburgs Water Engineering and Technology Department, Riga Technical University, Azenes str. 16/20, Riga, LV-1048, govsa@rtu.lv   Abstract The damage of engineering structures in rivers, because of scour (near intakes, pumping stations, bridge structures – abutments, guide banks, dams, etc.) leads to considerable environmental and economical losses. During multiple floods the scour hole […]