The slope forming material is predominantly composed of thick overburden material comprising in-situ soil intermixed with rock fragments. Rainfall resulted in oversaturation of fragile overburden material, increase of pore water pressure and loss of cohe
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
Implementation of adequate mitigative measures is suggested.
Seppa Road Slide 5
Seppa Road Section
1. Slope benching is already implemented, however the width and height ratio of the existing bench may be increased. 2. Construction of gabion wall for toe support. 3. Proper maintenance of lined hillside drain.

1. SFM: thick in-situ soil intermixed with fragments of weathered rock mass. 2. Regolith/ overburden thickness of >5 m. 3. Wet hydrological condition of the affected slope. 4. Oversaturation of weak slope material and loss of cohesion during rainfall. 5.