(HBO) – The Hoa Binh hydropower company opened one spillway gate at 7am on June 12 and then another at 1pm the same day. Then, 2 more spillway gate. This was the first time in 2022 that the company had to open spillway gates for reducing high water levels. The water release was carried out under the direction from the National Steering Committee for Natural Disaster Prevention and Control.

The Hoa Binh hydropower company opened the first spillway gate at 7am on June 12.

From June 11 to June 12 morning, the northern mountainous and midland region recorded gales and downpours with rainfall of 40 - 90mm, even over 120mm in several places, according to the National Centre for Hydro-Meteorological Forecasting.

As the Son La hydropower plant already opened a spillway to discharge floodwater, the flow to Hoa Binh Reservoir has approximated 5,300 cub.m. per second. The Hoa Binh hydropower plant is working at its maximum capacity with eight turbines operating continually.

With two spillway gates opened, the water flow from Hoa Binh Reservoir to downstream areas stood at around 5,600 cu.m. per second.

The reservoir’s water level stood at 109.7m by 7am on June 12. Under the Prime Minister’s regulation on procedures for inter-reservoir operation in the Red River basin, to ensure safety for the plant and downstream areas, its water level will have to be reduced to 105m by June 15.

Phan Van Vuong, Director of the Hoa Binh hydropower company, said before spillway gates were opened, the firm had notified the administration of localities, aquaculture establishments, and waterway vehicles in downstream areas of the water discharge so that they could gear up response measures.

As the discharge with such a large water volume is very dangerous, he called on people not to swim in the river or fish in downstream areas of the Hoa Binh hydropower dam./.

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