The road alignment was founded on loose and unconsolidated overburden material. The present sinking might have been initiated due to heavy toe erosion by Changprong nala. During heavy precipitation, sudden increase in discharge and downward
movement of r
Report on the preliminary post disaster landslide studies in and around Tawang Town, Tawang District, Arunachal Pradesh by W. S. Rocky and G. Rongmei, Senior Geologist,Engineering Geology Division & S.C. Keshari, Senior Geologist, SU: GSI, Itanagar,  Geo
Dumgin Road sinking
Sealing of tension cracks, construction of network of catch water drains and road side drains, construction of retaining walls.
Toe erosion by Changprong River / nala