The overburden material composed of loose fragments of rocks intermixed with soil resting on the ill-modified extensive slope cut failed due to oversaturation, increase of pore water pressure and loss of cohesion during rainfall events. Sparse vegetation
Kikon, A., and Jamir, I., 2021: Remote sensing based macro-scale (1:50,000) landslide susceptibility mapping in Toposheets 78M/9, M/10, M/11, M/13, M/14, M/15, 83A/2, A/3, A/4, A/7, A/8, A/11, A/12, 83B/1, B/5 & B/9 covering  parts of Tawang, West Kameng
Since the remedial measures already implemented is inadequate, it is recommended that the retaining wall may be upgraded.
NH 13 Slide 13
NH 13/ S of Tinghei
1. Afforestation of the hillslope. 2. Construction of concrete lined hillside drains. 3. Existing stone wall may be replaced by a RCC retaining wall with proper back filler material and sufficient weep holes founded on sound sub-stratum.

1. SFM is predominantly composed of loose unconsolidated fragments of rocks (quartzite and mica chlorite schist) intermixed with soil (Colluvium). 2. Oversaturation and failure of loose overburden material during rainfall. 3. Sparse vegetation due to aba