On August 15, 2018, one cut slope failure happened behind a house  near Kollamula,  with a length of 21m, width of 18 m and height of 15 m with 1 m depth. During the event,  One house belonging to Beena George, Ilampurayidathil, Kollamula got damaged.
Rubble benches were made across the steep cut slope which added material to the debris.
Kollamula slide 1
Kollamula
Unstable debris material on the slide area needs to be removed; a concrete retaining wall with weep holes and lined toe drainage need to be constructed, benching of slope is suggested, trees near the crown portion of the slide needs to be removed.
Unscientific cutting of slope behind the house, increase in pore water pressure and decrease in shear strength of the overburden material rsulted in failure of slope.