"This paper sets out the results of the analysis of the progress of tthe core incident at the Mosti\u0161t\u011B Dam. The analysis of the internal erosion was carried out using a one dimensional hydrodynamic and internal erosion model. The assessment included mod" . . . "This paper sets out the results of the analysis of the progress of tthe core incident at the Mosti\u0161t\u011B Dam. The analysis of the internal erosion was carried out using a one dimensional hydrodynamic and internal erosion model. The assessment included mod" .