During the month of June 2013, due to heavy rainfall, the debris material got saturated which followed the reduction in shear strength of the material and started flowing down. Initially, it appears that  about 40 m road length was damaged and for mainta
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_NH_ 022
500 m upstream of Helang Bridge
Slope modification by benches, improvement of drainage network, diversion of surface run off from the slide area, repair and restoration of affected breast wall.
Continuous heavy precipitation for 3-4 days resulted in saturation of overburden mass causing reduction in shear strength of debris material.