The slope failure occurred on colluvial foot slope. Colluvium materials are loosely packed and on saturation during heavy rainfall, these loose materials loss their cohesive strength. In addition to that, cutting of toe of the slope destabilized the slop
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 2016-75
Retaining wall constructed at the toe of the slope was partially damaged; perhaps, its base width, height and thickness should be increased in order to sustain the displaced mass load and founded on bed rock. Landslide occurred on 17/05/2016
New Haflong R.S. slide - (2)
New Haflong Railway Station
1. Channeling of surface and sub-surface water away from the affected slope. 
2. Dressing of the slope/ removal of overburden material.
The area comprises of weathered sandstone of W3-W4 weathering scale, khaki shale and carbonaceous shale. Cutting of toe of the slope for construction activities and heavy downpour resulted in super-saturation, loss of cohesion of the slope forming materi