As of 8:00 a.m. on November 10, 2025, according to an update from Vietnam Electricity Group, Hoa Binh Lake recorded upstream water levels at elevation of 116.5m; water flow to the lake reached 3,324m3/s; total discharge was 3,387m3/s.
Implementing the inter-reservoir operation process in the Red River basin, Hoa Binh Hydropower Plant opened 1 bottom spillway gate at 6:00 p.m. on November 9, 2025. The water level downstream of Hoa Binh Hydropower Dam will gradually increase to 12.5m.
At Tuyen Quang Lake, by 8:00 a.m. on November 10, the upstream water level reached 118.7m; the water flow to the lake reached 379m3/s; the total discharge was 588.61m3/s. Implementing the inter-reservoir operation process in the Red River basin, Tuyen Quang Hydropower Plant opened 1 bottom spillway gate of Tuyen Quang Hydropower Plant at 10:00 a.m. on November 5, 2025.
A similar situation occurred in Son La Lake, where the upstream water level reached 215.94m; the water flow to the lake was 2,130m3/s; the total discharge was 3,374m3/s.
Implementing the inter-reservoir operation process in the Red River basin, Son La Hydropower Plant opened a bottom spillway gate of Son La Hydropower Plant at 4:00 p.m. on November 9, 2025 to regulate the lake water level.
As of 8:00 a.m. on November 10, Lai Chau Lake recorded upstream water levels at 295 m; water flow to the lake reached 1,621 m3/s; total discharge of 1,621 m3/s. Currently, Lai Chau Hydropower Plant is opening a facial opening.
At Thac Ba Lake, by 8:00 a.m. on November 10, the upstream water level reached 58.11 m; the water flow to the lake reached 328 m3/s; the total discharge was 300.79 m3/s. Currently, Thac Ba Hydropower Plant is also maintaining an open gate for discharge.
In the context of complicated heavy rain and the potential impact of storm No. 14 Fung-wong, the flexible operation of hydroelectric reservoirs, ensuring safety downstream is considered a key factor in natural disaster prevention in the North.
