The affected area comprises unconsolidated sandy insitu soil of approximately 2ΓÇô5 m regolith thickness. During monsoon months, the debris charged Digar nala on its course erodes the toe of slope and destabilizes it. The partially eroded road section
Lemdur, K. and Kikon, A. (2018); MacroScale (1:50,000) Landslide Susceptibility Mapping in Toposheet nos. 83G/6 and 83G/7 in Karbi Anglong and Dima Hasao districts in Asam, Kohima District of NGaland and West MNipur distrcit of MNipur. GSI report of FS 2
Road bench is at risk if further toe erosion continues during monsoon season.
Digar nala slide No.3
Nobdi Langting–Darangbra road section.
Construction of strong reinforced retaining wall/gabion wall at the toe of the slide founded on firm substratum.
1. The affected slope comprises of sandy insitu soil.
2. Stream bank erosion/toe erosion by nala.
3. Oversaturation of slope forming material and increase in local pore water pressure
