The National Defense and Security Committee recommends that the Government carefully assess the impact of sand mining for roadbeds on coastal erosion.
Reviewing the Government's report on the transport sector, the National Defense and Security Committee assessed that the research on using sea sand as roadbed material deployed in the field basically meets the requirements.
However, the agency recommends a thorough assessment of the impact of sand mining on coastal erosion and environmental impacts related to agricultural land where roads pass through.
Vinh Hao Interchange, starting point of Vinh Hao - Phan Thiet Expressway, Binh Thuan Province. Photo: Viet Quoc
Regarding the removal of difficulties in material sources for transport projects in the Mekong Delta region, the Committee believes that the Government has made breakthrough instructions, helping to speed up the progress of projects.
Specifically, the Ministry of Transport, the Ministry of Natural Resources and Environment, and the Ministry of Construction have actively worked with localities to promptly resolve the issue; the material demand for the North-South Expressway project in the 2017-2020 period has been basically resolved; the project in the 2021-2023 period has approved the registration dossier for exploitation of 22 material mines.
Key projects and works in the Mekong Delta region have a huge demand for sand materials, but basically ensure the expected supply for construction according to schedule. The construction, announcement of prices and price indexes of construction materials are also strictly controlled, limiting speculation and price hikes for profit.
In May, the Ministry of Transport announced that it had piloted sea sand samples taken from Tra Vinh and Soc Trang to build highways. The results showed that the sea sand here met the physical and mechanical standards, meeting the requirements for roadbed sand.
The Ministry has piloted the use of sea sand on route DT978 under the Hau Giang - Ca Mau component project. The specialized agency will monitor until November and by the end of the year can determine the ability of sea sand to meet technical requirements.
The pilot project using sea sand to build roadbeds was launched in the context of a series of expressway projects being implemented but lacking filling materials. In September, Prime Minister Pham Minh Chinh requested relevant ministries and sectors to coordinate to speed up the progress of using sea sand to level the projects, reduce dependence on river sand and take initiative in material sources.
The sea sand used must meet technical standards and not have negative impacts on the environment such as: changes in seabed topography, coastal erosion, seawater pollution, and marine ecosystems before exploitation. The Ministry of Natural Resources and Environment is responsible for assessing the environmental impact of using sea sand to build highway foundations; identifying sea sand areas to guide exploration and exploitation.
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