On the morning of September 15, speaking with Lao Dong Newspaper, Mr. Pham Van Vuong - Director of Hoa Binh Hydropower Company - informed that the lake water level is rising, currently 115.02m upstream (nearly 2m below normal water level), 11.27m downstream; inflow is 3,416m3/s; outflow is 1,714m3/s.
According to Mr. Vuong, the unit is closing all bottom spillways and reducing power generation capacity to ensure downstream safety. The closing and opening of the bottom spillways will depend on hydrological developments, the amount of water flowing in, and the direction of the National Steering Committee for Natural Disaster Prevention and Control.
On the same day, at Hoa Binh Hydropower Plant, according to Lao Dong Newspaper reporters, all bottom spillways were closed. Above the hydropower reservoir area, the water level rose, creating a majestic natural scene.
According to people in Hoa Binh city, compared to the dry season, the water level is now about 40-50 meters higher than before.
Previously, at 7:00 a.m. on September 11, the upstream water level of Hoa Binh Lake was at 111.65 m (dead water level was 80 m), the flow to the lake was 1,947 m3/s, the flow discharged downstream was 3,910 m3/s.
Implementing the telegram of the Minister of Agriculture and Rural Development, Hoa Binh Hydropower Company closed the remaining bottom spillway at 9:00 a.m. the same day.
