The heavy rain from the night of June 20 to the morning of June 21 caused many areas in Thai Nguyen City to be deeply flooded. Some streets such as Minh Cau, Hoang Gia, Thinh Dan, Thai Nguyen University, Su Pham were flooded from 40 to 70cm. Many people and vehicles wade through the water, a series of vehicles stalled and encountered a situation of tears and laughter.
The heavy rain started at around 9am on June 20. At that time, many traffic participants were forced to wait on the roadside. Vehicles that stalled had to call for help from rescue vehicles. In the areas of the Royal Road, Thinh Dan area, the water rose to the edge of people's houses.
According to the reporter, by the morning of June 21, the flooding situation had not improved as heavy rain continued.
Ms. Nguyen Thi Hoa (Minh Cau, Thai Nguyen City) said: "Long-term heavy rain flooded many streets. Movement is affected when the water rises too high. Motorbikes and low-chassis cars cannot circulate. Many people tried to move but stalled in the middle of the road".
In fact, the situation of flooding every time there is heavy rain is no longer too unfamiliar to the people of Thai Nguyen City. The rainfall only ranges from 50mm - 100mm, causing many roads to turn into rivers.
Previously, the rain on June 15 also caused many areas to be deeply flooded, causing difficulties for vehicles.
The flooded black spots in Thai Nguyen City include Minh Cau Street, San Nen Area, Luong Ngoc Quyen, Hoang Gia Intersection, Hoang Van Thu, Thai Nguyen University Area. These are all the main roads in the city center with a large number of vehicles.
Flooding on many streets in Thai Nguyen City comes from the old drainage system, built decades ago. Many streets have small, degraded sewers, which cannot meet the needs of prolonged heavy rain.
At the same time, the rapid urbanization has caused ponds, low-lying fields, and the area of natural water seepage to increasingly narrow. The sidewalk and road surface items are concreted, causing overload for drainage.
Some regulating lakes have also narrowed, reducing the ability to regulate. Rainwater drains slowly, even refluxing from the sewers onto the road surface.
The drainage system of Thai Nguyen City is currently divided by terrain. Water from the North, East, South and city center leads through sewers and ditches into natural streams and then flows into the Cau River, the West drains into the Cong River.
In the case of rainfall below 90mm/hour, the system still operates effectively, only stagnating locally in a few low-lying areas. When there is heavy rain from 100mm, the system is quickly overloaded, causing flooding lasting from 2 to 3 hours in many areas.
Information from Thai Nguyen Urban Infrastructure Development and Drainage Company Limited, the unit has developed a natural disaster prevention and control plan for 2025, with the focus being on minimizing local flooding on the streets.
Key contents include surveying, dredging sewer systems; monitoring and regulating water levels in regulating lakes. Since the beginning of the year, the unit has maintained, dredged, and drained about 11km of sewers and ditches, improved drainage capacity, and limited flooding.
