Bac Ninh: Removing obstacles and quickly overcoming the landslide incident on Duong Huu dike

BAC NINH - Faced with the risk of landslides on the right dike of Duong River, the section passing through Dinh To residential group, Tri Qua ward (Bac Ninh), threatening agricultural production, dike safety and people's lives during the stormy season, the Department of Agriculture and Environment is implementing a project to build an anti-landslide embankment, striving to complete it before the stormy season in 2026.

Báo Bắc Ninh•02/12/2025

Increased risk of landslides

Tri Qua Ward has nearly 4 km of Duong river embankment, about 200 hectares of alluvial land along the embankment suitable for cultivating a number of fruit trees such as: bananas, grapefruit, oranges, tangerines, kumquats and various green vegetables. According to Mr. Nguyen Duc Dien, Vice Chairman of the Ward People's Committee, after Bac Ninh province implemented the policy of banning and stopping the operation of manual brick kilns, the entire alluvial land area along the Duong River in the ward was assigned to people for agricultural production, mainly specializing in growing fruit trees and various vegetables for high economic efficiency.

The rapid erosion of river banks needs to be remedied soon.

In 2017, Mr. Nguyen Van Hien's family, Dinh To residential group, boldly bid for 3 hectares of riverside land belonging to the local public land area to invest in growing orange and tangerine varieties, specializing in supplying to gardeners in Hung Yen province, earning about 1.2-1.5 billion VND/year. Investing in large-scale production, but every time the rainy and stormy season comes, his family is always worried about the situation of landslides, affecting production. Most recently, after storm No. 11 occurred in October 2025, the land area his family rented to grow oranges and kumquats was eroded with a length of 70 m, deeply penetrating from the river edge into the bank about 45 m, causing damage to more than 1,000 kumquat trees, the damage value is nearly 300 million VND.

The 1.2 km long embankment project to prevent landslides on the Duong River bank is invested by the Irrigation Sub-Department (Department of Agriculture and Environment), constructed by Ninh Giang Construction Limited Liability Company and implemented from August 2025 with a total cost of nearly 42 billion VND.

According to Mr. Vuong Chi Kien, Head of Dike Management Department No. 2 (Irrigation Sub-Department), in recent years, changes in the flow from illegal sand exploitation activities in the riverbed have led to an increased risk of landslides in the dike system and the area of land along the right dike of Duong. Statistics from 2020 to present, the coastal area along the right dike of Duong in Tri Qua ward has experienced dozens of landslides, of which in 2025, two consecutive incidents occurred after storm No. 11 with landslide arcs of 5x20 m and 45x70 m, respectively. The increase in landslides in recent years, especially after the 2025 storm season, threatens the safety of the dike system and affects people's agricultural production if not handled and remedied promptly.

Removing difficulties and speeding up project progress

To overcome the problem, the Irrigation Department (Department of Agriculture and Environment) implemented a project to build a dike to prevent landslides on the banks of the Duong River in Tri Qua Ward with a length of nearly 1.2 km; Ninh Giang Construction Limited Company won the bid and was deployed from August 2025 with a total cost of nearly 42 billion VND. Accordingly, loose rocks were dropped to protect the foot of about 600 m; concrete was poured to pave the roof of 1.1 km to prevent landslides in the riverbank area where landslides occurred.

The contractor has dropped 80% of the rock mass to protect the dike toe.

Immediately after receiving the site handover from the investor, the construction unit, Ninh Giang Construction Limited Liability Company, mobilized maximum human resources, materials, and means to implement the project. Mr. Nguyen Van Xep, Deputy Director of the Company, said: "With the highest determination to complete the project before the 2026 storm season, the Company regularly mobilizes 5-6 rock carriers, 40-50 workers, and many vehicles to speed up the project's progress. Up to now, the Company has released 80% of the volume of loose rock to protect the foot, is constructing the embankment and roof tarpaulin, and is preparing to pour concrete for the foot and the embankment roof beam frame."

Recently, the Irrigation Department (project investor) and the construction unit have actively mobilized maximum human resources, materials and means to speed up the progress. However, due to the riverbank erosion incident that occurred after storm No. 11 at the project implementation location, the Irrigation Department is having to complete procedures to adjust the project investment policy or supplement the component project to overcome the landslide incident that just occurred. Currently, the construction unit is still having to temporarily suspend the construction of the project to build a dike to prevent erosion of the Duong riverbank from km 21+600 to km 22+800 in Tri Qua ward so that the Irrigation Department can complete the procedures according to regulations.

According to Mr. Dao Thanh Hai, Deputy Head of the Irrigation Sub-Department, when the riverbank landslide occurred at the project implementation location, the Sub-Department, together with the locality and related units, conducted a field inspection, assessed the cause, and found a solution. Preliminary assessment of the cause was due to the impact of storm No. 11 with flood level near alert level 1, deep riverbed terrain, difference with high beach crest combined with weak geology (the embankment foot is mainly sand mixed with sediment) and the flow tends to approach the shore leading to rapid landslides. If not handled promptly, it can spread to both upstream and downstream and landslides deep into the riverbank, threatening the lives and property of people during production and the safety of the dike system. To continue implementing the project, it is necessary to develop a solution as a basis for adjusting the investment policy, adjusting the project, changing the design of the entire embankment line, reinforcing the foot and roof of the embankment to ensure safety against landslides. The work is being urgently carried out, striving to complete construction and handle incidents before the 2026 storm season.

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