Floods on Vu Gia and Thu Bon rivers continue to rise.

DNO - On the afternoon and evening of October 27, due to heavy rain in the basins of hydroelectric reservoirs on the upper reaches of Vu Gia and Thu Bon rivers, the discharge through the spillway increased. On the afternoon of October 27, flood water levels in the rivers downstream continued to rise, with the risk of widespread flooding as heavy rain is forecast to last until October 29.

Song Tranh 2 Hydropower Plant regulates floodwaters through the spillway. Photo: NAM TRAN

At 1:00 p.m., the flood level on Cai River (Dak Mi) rose again to 23.41 m (higher than alarm level 3 to 1.41 m) after peaking at 7:00 a.m. the same day at 23.02 m (higher than alarm level 3 to 1.02 m) and was showing an upward trend due to the increased discharge of water from Dak Mi 4 Hydropower Plant to Vu Gia River (at 3:00 p.m. the same day, the discharge of water from Dak Mi 4 Hydropower Plant to the spillway was 1,340 m ³ /s).

The flood level of Vu Gia River at Hoi Khach rose to 17.15m, 0.65m higher than alarm level 3 and is also rising due to the A Vuong and Song Bung 4 hydropower reservoirs increasing the discharge flow through the spillway to Vu Gia River (at 2:00 p.m. the same day, the discharge flow through the spillway of A Vuong Hydropower reservoir was 990m ³ /s and Song Bung 4 was 484m ³ /s).

The water level of Thu Bon River in Nong Son rose to 17.42m, 2.42m higher than alarm level 3 and is showing an increasing trend due to the Song Tranh 2 Hydropower Reservoir increasing the discharge through the spillway (at 3:00 p.m. the same day, it was 1,745m ³ /s).

Hydroelectric reservoirs are being monitored for flood discharge through spillways. Photo: NAM TRAN

The water levels of the rivers downstream, including Vu Gia River in Ai Nghia, Thu Bon River in Giao Thuy, Hoi An are all higher than alert level 3 and are continuing to rise due to heavy rain and increased discharge through spillways of some hydroelectric reservoirs upstream, causing deeper flooding in Dai Loc commune, Hoi An ward...

The flood water level of Yen River upstream of An Trach dam is still rising, causing deep flooding in areas in Hoa Tien commune and Hoa Xuan ward.

According to the forecast of the National Center for Hydro-Meteorological Forecasting, from this afternoon until tonight (October 27), there will continue to be rain in Da Nang city with accumulated rainfall ranging from 60-120mm, in some places over 200mm.

During the evening and night of October 27, there is a risk of flash floods on small rivers and streams, and landslides on steep slopes in many communes and wards.

Total accumulated rainfall in Da Nang city from July 27 to early morning of July 29 is generally from 300-500mm, locally over 800mm.

During the day and night of October 29, in the area from Ha Tinh to Da Nang city, there will be moderate rain, heavy rain and thunderstorms with common rainfall from 50-100mm, locally very heavy rain over 200mm. Heavy rain in the Central region is likely to last until the end of October 2025.

High risk of widespread flooding in Da Nang city; high risk of flash floods on rivers and streams and landslides on steep slopes...

Source: https://baodanang.vn/lu-tren-cac-song-vu-gia-thu-bon-tiep-tuc-dang-len-3308441.html