Due to the influence of storm No. 10, from 11:30 a.m. to 5:30 p.m. on September 30, Hanoi will have moderate to heavy rain, with common rainfall of 250350mm, locally high in Hai Ba Trung ward 420mm, and 510mm Coconut Market. Heavy rain has caused the water level of rivers and lakes in the inner city to remain at a high level. As of 6:00 a.m. on October 1, 2025, the water level in To Lich River (Hoang Quoc Viet section) is 5.14 m; West Lake 6.25 m; Hoan Kiem Lake 8.00 m, exceeding the controlled water level by 7.70 m.
Statistics from Hanoi Drainage Company Limited show that the whole city has 82 severely flooded locations. Compared to the historic flood in October 2008, when the total rainfall was up to 550mm and 83 heavy flooding points were recorded in the inner city, including 26 flooding points from 100300m long with a depth of 30100cm, causing traffic congestion, the rainfall on September 30 has not exceeded the historical peak. However, the current flooding rate is equivalent to that of 2008, raising questions about the operational capacity of Hanoi's drainage system after many years of not improvement.
According to a representative of the Hanoi Department of Construction, on September 30, the heavy, continuous and prolonged rain exceeded the designed capacity of the urban drainage system, causing the system to be overloaded. Rainwater flooded the road, gathering to low-lying areas, causing deep flooding.
Meanwhile, the urban drainage system is in the process of investment and construction, not synchronously; the connecting works and regulating lakes according to the plan are being implemented slowly. Along with the rapid urbanization, some areas that were previously suburban areas now have roads and construction works higher than the current road, so when it rains heavily, water stagnates and the road is flooded.
Experts say that the fact that many regulating lakes have not been implemented according to the plan is also the reason for increasingly serious flooding.
Explaining the cause of widespread flooding and some prolonged flooding points, a representative of Hanoi Drainage Company Limited said that due to the impact of the circulation of storm No. 10 Bualoi, the city had moderate to heavy rain. The company has activated the flood treatment mode, synchronously deploying solutions: on-duty at locations at risk of flooding, operating pumping stations at a maximum of 100% of the designed capacity.
With some points depend on river water levels, especially the Nhue River area - where the drainage system has not been renovated, the treatment will depend on the actual situation. Currently, some drainage systems in Hanoi depend on agricultural pumping stations, so it is necessary to coordinate with the Hanoi agricultural sector to pump and discharge floodwater, said a representative of Hanoi Drainage One Member Co., Ltd.
Millions of arms turn to compatriots affected by storms and floods
Consecutive storms 8, 9, 10 and floods caused by the storm have killed many people and left many people missing. Many houses and production and business establishments had their roofs blown off and suffered heavy damage. People across the northern and central mountainous provinces are struggling to cope with floods and heavy losses in human lives and property due to floods and thunderstorms.
"A piece of food when hungry is worth a package when full", with the spirit of mutual love that has always been a beautiful image of the Vietnamese people, the Golden Heart Social Charity Fund calls on domestic and foreign philanthropists to join hands to share with people affected by floods to have food, clothing, shelter, students have books to go to school...
The Golden Heart Social Charity Fund would like to sincerely thank the precious feelings of agencies, businesses, and domestic and foreign philanthropists.
All help please send to: The socialist fund of the golden heart, No. 51 Hang Bo, Hoan Kiem, Hanoi. Phone: 024.39232756. Account number (STK): 113000000758 at VietinBank Hoan Kiem Branch, Hanoi. STK: 0021000303088 - At Vietcombank - Hanoi Branch, STK: 12410001122556 - At BIDV - Hoan Kiem Branch. Or scan the following QR code:
