Geologically, the area is made up of Shale, flaggy sandstone and calcareous rocks of Disang Group. Combination of factors like cutting of toe of the slope, thick overburden of about 2-5m and heavy rainfall resulted in the failure of slope. It is a shallo
Chasie M. &  Theophilus P.K., 2017: Updation of existing landslide inventory of North Eastern region based on the new incidences as and when occurs during the period, Unpubl. GSI progress report for FS 2016-30
The mitigation measures are to be implemented urgently. The slide materials have to be removed as this will disrupt the traffic. Landslide occurred in May 2016
NH 54 Ritzawl slide (2)
NH 54, 2 km west of Ritzawl village
Construction of retaining wall at the toe of the slope founded on firm sub-stratum
2. Proper channeling of surface run-off and construction of hill side drain for proper water outlet.
Toe cutting of the slope for road construction, incessant downpour, weak overburden are the main contributing factors. Oversaturation of the weak overburden material due to continuous rainfall for about a week led to infiltration of water which caused sl