📋 Tender Overview
Flooding is a warning about uncontrolled development, when technical infrastructure cannot keep up with the pace of urban expansion. If we do not adjust soon, we are creating obstacles for future growth, affecting the quality of life and psychology of urban people. Urban flooding is not just a technical problem but a sign of unbalanced development between economic growth and environmental protection. On the morning of October 29, the Ministry of Construction in coordination with the Prime Ministers Policy Advisory Council organized a seminar Urban flooding - Current status, causes and solutions. Technical infrastructure cannot keep up with urban development. Speaking at the seminar, Mr. Tran Quoc Khanh, former Deputy Minister of Industry and Trade, Standing Member of the Prime Ministers Policy Advisory Council, acknowledged: Urban flooding is not just a technical problem but a sign of unbalanced development between economic growth and environmental protection. Mr. Tran Quoc Khanh, former Deputy Minister of Industry and Trade, Standing Member of the Prime Ministers Policy Advisory Council - Photo: VGP/PT According to Mr. Khanh, climate change, extreme rain and rapid urbanization have made flooding a problem that has never gone away. If in the past, 200mm of rain per day was considered very high, now many places have far exceeded that level. Even the Diplomatic Corps area, the highest area in Hanoi, has experienced deep flooding, making it impossible to move. With just 50mm of rain, many streets are paralyzed, the floodwaters recede very slowly, in the past it took 2-3 hours to recede, but now we sit at home for up to 2 days. Flooding again is a manifestation of the inadequacies of modern urban progress, Mr. Khanh emphasized. Mr. Khanh also said that flooding is a warning about uncontrolled development, when technical infrastructure cannot keep up with the pace of urban expansion. If we do not adjust soon, we are creating obstacles for future growth, affecting the quality of life and psychology of urban people. Mr. Ta Quang Vinh, Director of the Department of Construction Infrastructure (Ministry of Construction). Mr. Ta Quang Vinh, Director of the Department of Construction Infrastructure (Ministry of Construction) admitted that the drainage systems of Vietnams urban areas were formed a long time ago and have been renovated and upgraded over many periods, but are still patchy and lacking in uniformity. In particular, the drainage system of current urban areas is mainly shared drainage (rainwater and wastewater drainage are in the same system), so the ability to drain storm water overflow is limited compared to separate drainage systems. This is also a cause of urban flooding when there is heavy rain. According to Mr. Vinh, in some urban areas, there are actually centralized wastewater treatment plants but they have not reached the designed capacity because the rate of drainage connections from households is still low or the collection network has not been synchronously invested; The predictability of current drainage plans does not keep up with the reality of climate change impacts and extreme weather phenomena. In addition to the speed of urbanization, Mr. Vinh assessed that investment in new construction, upgrading and improving the drainage capacity of urban drainage systems has not been given much attention, leading to the situation of not keeping up with the pace of urban development. Mechanical population growth is also one of the causes of reduced rainwater drainage capacity leading to urban flooding. In addition, in recent years, extreme weather phenomena have been increasing, heavy, prolonged, and sudden rains have occurred more and more often, rainfall exceeding the design frequency of urban drainage systems as well as combining with rising sea levels to form a combination of: river floods - rain - storms - high tides, completely paralyzing the drainage systems of some urban areas, leading to prolonged flooding on a large scale. Due to lack of resources, investment is not synchronized between road networks. drainage and wastewater treatment plants, so the wastewater treatment plants design capacity is not fully exploited, reducing project investment efficiency. Many rainwater (surface water) drainage systems in urban areas are overloaded, drainage capacity does not keep up with the reality of climate change impacts and extreme weather phenomena. Some anti-flood drainage projects have been invested in but implemented slowly and with low efficiency, not yet fundamentally dealing with flooding in some localities and keeping up with forecasts of the situation in response to weather developments and climate change; The database of the drainage system is not synchronized with data of other projects such as traffic, electricity, clean water, telecommunications cables, etc....Flooding not only causes physical damage, traffic disruption, and affects daily life, but also reduces the confidence and quality of life of urban residents, Mr. Vinh emphasized. The locality experiences unprecedented floods. This is an inadequate reality, especially after the historic flood in Hanoi and other localities, due to the impact. of storms No. 10 and 11. According to Mr. Le Van Du, Head of Water Supply and Drainage Infrastructure Management Department (Hanoi Department of Construction), the Capitals drainage planning to 2030, vision to 2050 (according to Decision 725/QD-TTg) divides Hanoi into 3 main drainage areas: Ta Day, Huu Day and North Hanoi, with a total area of about125,400 hectares. The main drainage sources include the Red River, Day River, Tich River, Bui River, Nhue River, Duong River, Ca Lo River... Mr. Le Van Du, Head of Water Supply and Sewerage Infrastructure Management Department (Hanoi Department of Construction) However, reality shows that drainage infrastructure cannot keep up with the pace of urbanization. Currently, only To Lich river basin is invested synchronously with Yen So pump
