The affected area comprises thick column of highly weathered siltstone and clayey in-situ soil. Benching has been already constructed over the slope however cutting the natural slope to a critical angle for road construction combined with over-saturation
Neethusree, K. J. and Suma, C. S, 2020. Macro-Scale (1:50,000) Landslide susceptibility mapping in Toposheet no. 83 C/12 and in parts of Toposheets nos. 83 D/5, 9, 13 & 14 in Dima Hasao, Cachar and Hailakandi districts of Assam, East Jaintia Hills distri
Balichhara road section is part of NH-27 which leads to Haflong hill town and other major parts of the state hence frequented by large number of vehicle throughout the year. Therefore, proper mitigation measures in vulnerable slopes should be implemented
Balichhara slide-2
NH-27(Old NH-54E, Silchar-Lumding road)
Construction of reinforced retaining wall at the toe of the slide founded on sound sub-stratum. Construction and proper maintenance of hill-side lined drainage.
1. Slope cut for road construction. 2. Weak lithology comprising mostly in-situ soil and weathered siltstone. 3. Pore-water pressure and reduction of strength on over-saturation.