Debris Flow  occurred at painavu, along the Thodupuzha-Puliyamala NH road side on 15th August 2018 where vegetation washed and  road was blocked. It is a shallow  transitional failure .Excess pore water pressure resulted in reduction of strength on supe
PAINAVU
Thodupuzha-Puliyamala road
The existing retaining wall with weep holes should be strengthened and this should be constructed proportionate to the  slide below the road. Lined road side  drains has to be provided to divert the surface run off.
Road damged due to uncontrolled surface runoff and also there by causing reduction of strength on super saturation due to excess pore water pressure.