Dam is a very essential part of our society. It provides power supply, irrigation water, tourism, navigation and many other benefits. Dam structure is very
crucial and lack of strategy, maintenance, structure design can cause high level of flood devastation to the adjacent area. It affects at high level interms of loss
e, loss of economy, environment degradation etc. Dam breach process may be instantaneous or gradual, depend
paper hypothetical breach of earthen dam has been analysed by using HEC-RAS, which is a computer program and used for dam breach modelling.
Methodology adopted during modelling is summarised in this paper. Dam breach analysis is important, it provides detail knowle
e elevation values and also about inundated areas by using inundation maps. These maps are useful for
administration and other stakeholders at the time of emergency, so that local people can be saved by providing emergency warn
show that overtopping failure causes more flood with respect to piping failure in earthen dam, however the difference is meag
study based on limited data of Baur dam (Uttarakhand) analysed using HEC-RAS modelling breach guidelines. The results of HEC
worst scenario is pool reservoir level with overtopping failure pattern of Baur dam.