The affected slope is composed of silty in-situ soil cover of about >10 m thickness. The non-cohesive slope material due to rainfall resulted in oversaturation, loss of cohesion and reduction in shear strength of the material, thereby, resulting in deep
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
The road stretch along this section is highly susceptible to landslides.
NH 13 Slide 30
NH 13/ S of Nyakmadung
1. Systematic channeling and diversion of surface water runoff away from the affected slope. 2. Construction of lined hillside drain. 3. Construction of retaining wall with sufficient weep holes founded on sound sub-stratum.

1. The slope forming material is generally composed of silty and porous soil. 2. Regolith/ overburden thickness of >10 m. 3. Oversaturation of slope material and loss of cohesion during rainfall. 4. Slope cut for road construction.
