On 15th August 2018, a cut slope failure occured behind a house at Thannithodu village with 7 m length, 12 m width and 0.5 to 1 m depth. The slide occurred due to increase in pore water pressure and decrease in shear strength of the material during heavy
The house was constructed very close to the steep cut slope, without leaving any sufficient space, hence during the slide, the material directly fell above the construction, causing severe damage.
Thannithodu slide
Thannithodu Village
Unstable debris material on the slide zone needs to be cleared; construction of concrete retaining wall with weep holes sloping towards the house with provision of lined toe drainage.
Due to heavy rainfall, there was increase in pore water pressure and decrease in shear strength of the material; unplanned steep cutting of slope for construction of house resulted in slope failure.