Benching by random rubble constructed across flow path in the rubber plantation as part of restoration work.
Vallyantha  slide
Vallyantha
Removal of unstable material from the source as well as flow path,. No construction should be made blocking the natural stream coarse.
During heavy rainfall, due to increase in pore water pressure and decrease in shear strength of the overburden material, the slope got failed which initiated the debris flow along the seasonal stream down slope.