During heavy rainfall, the stream undercuts the toe due to increase in water volume and velocity. Though the road traffic is low, the toe erosion taking place on the left bank is of major concern because the road that connects several villages runs just
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 in the events of high rainfall.
Dongki nala slide.
Kepre Tongikro Mongjang road section.
1. Timely maintenance of lined hillside draiNGe system at the toe of cut slope (road bench)
2. Gabion walls or riprap placed at the bank toe to prevent further undercutting.
3. In order to restore and strengthen the bank, establishing significant plant r
1. Toe erosion (stream bank erosion) by Dongki nala.
2. Weak slope forming material comprising mainly of weathered, friable, medium grained sandstone.
3. Overburden thickness of >5m.
4. Reduction of slope materialΓÇÖs shear strength on over saturation