It is a shallow rotational debris slide of retrogressive in nature. Combination of factors like cutting of the slope, thick overburden of about >5m, weak lithology, and incessant rainfall resulted in the failure of slope.
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 2016-31
Leakage from the water pipe is also contributing to slope failure. Half part of the road has collapsed. Reconstruction/ proper maintenance of culvert system is required. Landslide occurred on 2nd week of May 2016
Ritzawl slide (3)
NH-54, near Ritzawl village
1. Construction of retaining wall at the toe of the slope founded on firm sub-stratum.
2. Construction of hill side drains at the toe of slope cut.
3. Cascading the nala section and proper channeling of surface run-off.
Geologically, the area is made up of Shale, flaggy sandstone and calcareous rocks of Disang Group. Excavation or cutting of natural slope for road construction activities destabilized the slope. And incessant drizzle resulted in over saturation of the sl