Heavy rainfall (480mm) on 16 July 2015 triggered a huge landslide (DGSE and GDKU, 2016) that dammed the Tui Lam Lui River approximately 52 km upstream of Yazagyo Dam near Hangken Village, Falam District in the Upper Chin Hill region in northwestern Myanmar The landslide dam was formed by quick deposits of landslide materials, which lack of sufficient compaction in damming material. In other hand it is lacking of seepage control and flood drainage facilities. For these reasons, the dam may breach and the consequent flood could create significant loss of life and downstream property. The stability of this landslide dam is a prime concern for local people.