The area witnessed a prolonged and heavy rainfall causing saturation of overburden mass. This led to increase in pore water pressure and reduction in shear strength of the material. Inside cutting of hill at steeper angle also played a role and debris ma
An Interim Report on Preliminary  Geological  Slope Stability Assessment of the Recent Disaster Affected Areas in Parts of Chamoli District, Uttarakhand by Bhupendra Singh, Bhupender Singh, Ajay Kumar and Arindam Roy, Senior Geologists, M-IV, NR GSI Dehr
UK_CHA_MDR_ 064
Near village Devkhal
Slope dressing by benches, improvement of drainage, breast wall with weep holes, lined toe drain along the road.
Heavy rainfall caused saturation of overburden causing reduction of shear strength and resultant slide. Toe cutting of the slope at higher angle added to the problem.