ABSTRACT
The main objective of the reported manuscript is to analyze the breach of an earthfill embankment, specifically the Lozorno II. dam, serving for further purposes to possible reclassification of the hazard category of the dam. The Lozorno II. dam is located in the Slovak repub-lic, lying in the Záhorská Lowland, where the need for reclassification results from intensive urban development downstream of the dam. For our work purposes we developed an HEC-RAS model from a digital terrain model (DTM) creating geospatial data in RAS Mapper to represent the river system and floodplain area specifically for performing a dam breach analysis with HEC-RAS Version 6.3.1. Results of the analysis, and the brief discussion on it are included in the presented paper.
