Painavu- Thodupuzha road
Easing of slope at the scarp face. Retaining wall of 3m hight should be provided which founded on the hard rock. Lined drains has to be provided to divert the surface run off away from the affected area.
Unscientific hill slope modification for road construction left cut slope with no lateral support. Toe erosion by the surface run off along the road contribute the failure. Reduction of strength on super saturation and excess pore water pressure.