On September 18, the leader of the Department of Transport of Dak Nong province said that the preliminary cause of cracks and landslides at many points along Ho Chi Minh road (National Highway 14), passing through Ong Bo slope in Quang Tin commune (Dak R'lap district) has been determined.
Previously, on the night of September 7 and early morning of September 8, many cracks of different sizes appeared in the above area. In the following days, the cracks grew rapidly.
As of September 11, the cracks were 5-60cm wide. The longest crack was about 75m. The deepest subsidence was about 60cm below the current elevation, and the crack was about 60cm wide. These cracks were about 20m from the edge of Highway 14.
The subsidence area has houses and other structures and has shown a lot of damage.
After receiving the information, the Department of Transport presided over, worked with relevant units and went to the field to inspect. Thereby, it was determined that the cracked and sunken area was the land of Mr. Ngo Van Vinh's household (residing in Quang Tin commune).
Mr. Vinh's land was granted a land use right certificate by the Department of Natural Resources and Environment with an area of nearly 10,000 square meters of agricultural land in 2020.
According to records, on the land where the land was leveled without a permit, Mr. Vinh built temporary houses for living and business. These constructions have appeared to be damaged.
The initial cause was determined by authorities to be that recently, the weather in the province has been complicated, with many long-term rains with large volumes.
On the other hand, the area and height of the leveled land mass are large, and there are no suitable technical solutions to ensure safety, so when it rains heavily, subsidence and cracking occur.
Currently, the subsidence and cracking situation at the land area along National Highway 14 (section through Dak Nong) is still developing, potentially affecting road works and causing traffic safety on the route.
