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On October 28, Dak Mi Hydropower Joint Stock Company (the investor of the Dak Mi 4 hydroelectric project) issued an announcement regarding the operation of the Dak Mi 4 hydroelectric reservoir (increasing the discharge from the second spillway).
Consequently, the start time of the operation at 15:30 on October 28, the expected discharge volume is up to 11,400 m.3per second.
Hydropower discharge scene Dak Mi 4 (clip material)
In the afternoon of October 28, the floods of the National Meteorological and Hydrological Forecast Center on the Vu Gia River increased very rapidly. The water level at 16:00 on October 28 on the Vu Gia River in Ai Nghia was 7.55 m, below alert 2 it was 0.25 m.
At that time, the amount of hydroelectric power that Dak Mi 4 was discharging downstream was 5,100 m3per second. The National Center for Hydrometeorological Forecasts that hydroelectricity continues to maintain a discharge of 5,000 m3/ second downstream, forecast in the next 6 to 12 hours, the water level in the Vu Gia river in Ai Nghia is likely to rise to 10.3 m – above alarm 3 is 1.3 m in 2009 was 0.47 m).
At 5:00 p.m. on October 28, the Dak Mi 4 hydroelectric plant discharges downstream at more than 7,000 m3 of water / second
In the case of hydropower discharge downstream as expected, that’s 11,400 m3/ second, from 6 to 12 o’clock, the water level in the Vu Gia River in Ai Nghia is likely to rise to 11.2 m – 2.2 m above alarm 3, exceeding the flood level by 0 historical of 2009, 43 m.
Meanwhile, according to the data updated at 5:00 p.m. on October 28, the water flow to the Dak Mi 4 hydroelectric reservoir is almost 8,400 m.3per second. This hydroelectric plant discharges water through the spillway to more than 7,000 m3per second.
News of emergency floods, especially important on the Vu Gia River in Quang Nam
In addition to the Dak Mi 4 hydropower, at 17:00 on October 28, the A Vuong hydropower is also discharging more than 300m downstream.3per second. The flow of water to the Vu Gia River is up to almost 7,400 m3per second.
The National Center for Hydrological Forecasts warns of the high risk of deep flooding in many low-lying areas and landslides in the districts of Nam Giang, Dai Loc, Dien Ban Duy Xuyen, Hoi An and Da Nang; and at the same time warn that the level of risk of natural disasters caused by floods, floods, flash floods, landslides is level 4.
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