Survey and evaluate the cause of landslides on the right bank of Duong River in Tri Qua ward

BAC NINH - In response to the landslides in the Duong River bank area from km21+600 to km22+800 in Tri Qua ward that occurred in recent years, the Department of Agriculture and Environment of Bac Ninh province directed the Irrigation Sub-Department to review and establish a project to build an anti-erosion embankment system in this area.

Leaders of the Irrigation Department and Tri Qua Ward People's Committee inspected the landslide incident on the Duong River bank in Dinh To residential group.

Due to the influence of storm No. 11 with the rising flood level of Duong River, the impact of the flow combined with the weak geology and riverbed stratigraphy, since the end of October until now, in the alluvial land area on the right bank of Duong River in the residential area of ​​Dinh To, Tri Qua ward, landslides have continuously appeared, threatening the lives and causing damage to many properties and crops of the people.

According to the report of Dike Management Unit No. 2 (Irrigation Sub-Department), the riverbank erosion has been occurring since the end of October, developing rapidly and becoming increasingly serious. By November 6, the erosion was recorded to be about 70 m long, 30 - 40 m deep into the bank, creating a vertical collapse wall 20 - 30 m high from the water's edge to the beach, causing damage to many areas of crops and trees of the people.

Immediately after the landslide, the Irrigation Department (Department of Agriculture and Environment) together with the People's Committee of Tri Qua ward and the consulting unit, Bac Ninh Agricultural Construction and Rural Development Consulting Joint Stock Company, conducted a survey and assessed the cause to propose measures to handle and overcome the incident.

Many crops and plants of households were damaged due to landslides on the banks of the Duong River in Dinh To residential group.

Mr. Dao Thanh Hai, Deputy Head of the Irrigation Sub-Department, said that at the location of the landslide, from the beginning of October 2025 until now, the Bac Ninh Irrigation Sub-Department has been implementing a project to build embankments to prevent landslides on river banks and beaches from km 21+600 to km 22+800 in the area of ​​Dinh To residential group, Tri Qua ward with a total investment of 48 billion VND; implemented from October 2025, striving to complete in 2026.
For the locations where a part of the loose rock has been dropped to protect the toe of the embankment to keep it stable and prevent landslides, according to the project design documents, the section from km0+450 to km0+525 is the location where, according to the documents, the rock has not been dropped to protect the toe of the embankment to create a prism to prevent deep erosion under the foot of the embankment and to stabilize the embankment toe support block due to the sloping beach, so only the reinforcement of the embankment frame has been carried out, leading to landslides. Currently, the construction unit, Ninh Giang Construction Company, has not yet implemented construction to the location where the landslide arc appears.

The landslide is 70 m long, 30 - 40 m deep into the shore with rapid and increasingly serious erosion.

To completely overcome the problem, the project design consultant, Bac Ninh Agricultural Construction and Rural Development Consulting Joint Stock Company, proposed to adjust and supplement the design plan at the landslide location by dropping loose rocks to protect the foot, covering the soil roof, and building a concrete beam frame embankment.

According to Mr. Nguyen Duc Dien, Vice Chairman of Tri Qua Ward People's Committee, the eroded riverbank area is a public land area of ​​the locality that is being assigned to a number of households for cultivation of annual crops and other crops such as oranges, kumquats, bananas, etc.

In the face of the incident threatening the safety of people's lives and property, the Commune People's Committee will organize propaganda and mobilize people to voluntarily hand over land and crops to promptly implement the project of building embankments to prevent riverbank and beach erosion. At the same time, it is requested that the Investor, the Provincial Irrigation Sub-Department, fully implement regulations and policies on land compensation and crop support when reclaiming land to implement projects to repair and upgrade the dyke system and irrigation works.

News and photos: Nguyen Tuan

Source: https://baobacninhtv.vn/khao-sat-danh-gia-nguyen-nhan-sat-lo-bo-bai-huu-song-duong-thuoc-dia-phan-phuong-tri-qua-postid430533.bbg