Previously, heavy rain on August 20, 2024 at Km4+10 of National Highway 18B (section passing through Tai Pho village, Quang Duc commune, Hai Ha district) caused a landslide on the negative slope about 30m long and 20m deep.
2/3 of the road surface slid down the abyss and the drainage culvert broke, cutting off the road connecting National Highway 18 to Bac Phong Sinh border gate (Hai Ha).
To ensure traffic, authorities have set up checkpoints and divided traffic into three directions: heavy trucks moving through National Highway 18C from Km4 Mong Cai to Bac Phong Sinh border gate, other vehicles can go through Binh Lieu district or from Tai Pho village (Quang Duc commune, Hai Ha district) to the border gate.
Since September 20, after the Ministry of Transport issued an emergency construction order, repair work has been deployed.
The solution to overcome the landslide is to build a larger box culvert to drain water, and fill the soil on both sides (previously there was a D150 round culvert, broken length L=60m, however due to heavy rain, the area of the culvert was weak, flooded for a long time, leading to landslides).
The estimated cost of repairing landslides on National Highway 18B is about 4 billion VND. Of which, the cost of filling soil to restore the slope is 189 million VND, the cost of the cross-road culvert system is 2.272 billion VND, and the cost of constructing other items such as downstream water levels, stone cages, and concrete retaining walls is nearly 1 billion VND in total.
Speaking to Lao Dong on the morning of October 23, a leader of Road Bridge Management Joint Stock Company No. 2 - the construction unit said: From October 19, vehicles can travel on the route. In the next few days, the unit will asphalt the road surface. Currently, the contractor is handling the reinforcement of the downstream part of the horizontal culvert, completing the embankment, and will be completed in November 2024.
