Heavy rainfall caused river flooding and toe erosion by high river current in steep natural slope that led to reduction of shear strength
An interim report on Preliminary slope stability assessment of recent disaster affected areas of Pithoragarh District, Uttarakhand by A Bishwapriya, Suptg. Geologist, M V Dhakate and P K Gajbaiye, Sr Geologist, M IV, NR,Dehradun (LHZ/NR/UPUK/2013/056)
UK/Pith/ Munsyari-Jauljibi/LS/0032
State Highway
Flood protection walls, removal of the loose material and suitably designed retaining structures with weep holes and toe drains
Cause for the incident are presence of loose and unconsolidated material, flooding of the river with high current, development of the pore pressure and reduction of the shear strength of the material due to saturation by water percolation, gully erosion