At 1:00pm on Wednesday, the A Vuong, Song Bung 4 and Dak Mi 4 hydropower plants increased the discharge volume into the Vu Gia river to more than 1,500m³/s. The purpose was to lower the water level of 3 reservoirs to the lowest flood water level before 10:00 am on October 14, 2022 in a bid to prepare for another spell of heavy rains that is forecasted from the night of October 13 to 15.

The A Vuong hydropower plant is discharging water over the spillways to lower the reservoir level in order to prepare for the upcoming spell of heavy rains. Photo: HOANG HIEP

Following the direction of the Quang Nam Provincial Steering Committee for Natural Disaster Prevention and Control, and Search and Rescue, the A Vuong hydropower plant discharges water through power generators and spillways into the Vu Gia River with a total flow discharge volume of 150- 400m³/s larger than the water flow to the reservoirs from 11:00 am on October 12 to before 10:00 am on October 14.

During that period, the Song Bung 4 hydropower plant discharges water through power generators and spillways to the downstream of the Vu Gia River, which is 350-400m³/s larger than the water flow to the reservoir.

The Dak Mi 4 hydropower plant discharges water through generators to the Thu Bon River and through spillways to the downstream of the Vu Gia River with a total discharge volume greater than that of the reservoir by 400-450m³/s.

Currently, the flood has already receded in Hoa Vang District. At 1:00pm on Wednesday, the flood on the Yen River at the upstream of the An Trach Dam is slowly lowering. It is expected that by tonight, the flood on the Yen River is likely to rise slowly because the hydropower reservoirs are lowering its water level.

According to the Mid-Central Region Centre for Hydro-meteorological Forecasting, from October 13 night to October 15, mid-central localities from Thua Thien-Hue to Quang Ngai provinces, including Da Nang, are predicted to experience moderate to heavy rains, and thunderstorms, with a common rainfall of 200-350mm, and even more than 400mm in some places. Additionally, flash flooding and landslides are expected to occur in mountainous areas of localities from Quang Binh to Quang Ngai.

Reporting by HOANG HIEP - Translating by M.DUNG