Recently, continuous heavy rains have caused a series of reservoirs in Nghe An to reach high water levels, approaching the design threshold. Specifically, at Ve Vung Dam Reservoir (Quang Dong Commune), the current water level has reached 27.20/28.60m, equivalent to more than 80% of the design capacity with a total capacity of over 18.3 million m³. This is one of five reservoirs classified as "weak" with a high risk of insecurity during the flood season.
Mr. Ngo Xuan Trang - Head of Ho Nam Cluster said: "To respond to storm No. 3, we have arranged 7 workers to operate 24/7 at Ve Vung Lake. Tasks such as checking the dam body, main spillway, secondary spillway, detecting and handling unusual phenomena such as seepage and leakage are all carried out regularly and strictly." However, Mr. Trang also said that the lake's water intake system is currently damaged and needs to be repaired soon.
Similarly, at Song Sao Lake - a large irrigation project located in Nghia Lam commune with a capacity of 51 million m³ - the water level has reached 75.11/75.50m. In anticipation of storm No. 3 potentially causing heavy rain, the lake management unit has planned to release a spillway with a flow rate of less than 100 m³/s from the morning of July 22 to reduce water pressure in the lake.
Mr. Hoang Tran Lam - Chairman of the Board of Directors of Phu Quy Irrigation Company Limited, the unit managing Song Sao Lake - said: "Currently, the lake's sluice opening and closing equipment has been electrified, helping the operation process to be more convenient and accurate. The unit always maintains a team of 7 permanent workers to check the machinery, monitor the water level and the status of the project."
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Not only focusing on medium and small reservoirs, large projects such as Vuc Mau reservoir (Hoang Mai ward) - the largest reservoir in Nghe An province with a capacity of 75 million m³ - are also being operated strictly. The water level is currently at 17.81/21m, with 8 workers assigned to work day and night. The monitoring system, rain gauge, and spillway opening here are automated, ensuring effective and timely supervision and operation. Before the spillway is released, people and related units are notified in advance to proactively prepare response plans.
According to the Bac Nghe An Irrigation Company Limited - the unit currently managing 23 reservoirs, of which 5 are weak, including Ve Vung Dam Reservoir in Quang Dong Commune, Bau Gia Reservoir in Hung Chau Commune, Ma To Reservoir in Binh Minh Commune, Khe Than Reservoir in Quynh Tam Commune, Khe Bung Reservoir in Hoang Mai Ward, reinforcement and repair work has been carried out right before the storm season. Important items such as anti-seepage grouting, reinforcing the downstream slope with stone gabions, and handling of weak points have all been completed to ensure the safety of the works.
Information from the Nghe An Irrigation Department shows that the province currently has 1,061 large and small reservoirs, of which 278 are full. Of these, 100 are managed by enterprises, and 178 are managed by commune-level People's Committees. The remaining 783 reservoirs have water levels reaching 50-70% of their design capacity. However, the worrying thing is that more than 100 irrigation reservoirs across the province are damaged, with a high risk of being unsafe.
A representative of Nghe An Irrigation Department said: “To ensure the safety of reservoirs during the flood season, management units have been requested to operate and regulate water flexibly and reasonably. In particular, before spilling, all reservoirs must promptly notify the Provincial People's Committee, the Steering Committee for Natural Disaster Prevention and Search and Rescue, and related localities to have appropriate response plans.”
Source: https://baonghean.vn/tap-trung-cao-do-cho-van-hanh-an-toan-dieu-tiet-cac-ho-chua-lon-truoc-bao-so-3-10302811.html
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