The debris slide occurred due to slope failure. In addition to that heavy downpour resulted in over saturation of which contributed to the driving force by development of pore water pressure and increase in overburden weight.
Anicia K.S., Arvind Kumar Singh, 2022, Remote Sensing based Macro-scale (1:50,000) landslide susceptibility mapping in TS no. 82 P/12, 15, 16; 91 C/3, 4, 7, 8, 12; 91 D/1, 2, 3, 4, 5, 6, 8, 9 and 10 covering parts of Lower Dibang Valley, Lohit, Anjaw and
NIL
From Khupa/ KVK Anjaw 6.7 kms along HMH road towards Hunli
Hunli-Metengliang-Hayuliang (HMH) road
1.Clearing of loose debris material and fragments of rock from the slope face. 2.Construction of retaining structures with sufficient weep holes to avoid toe erosion3. Removal of uprooted tree/ plants from the crown portion of the slide.
Extensive slope cut for road construction. Thick over burden material (up to 2-3m thick) coupled with incessant rainfall as well as rill erosion may cause for the slides.