296 Million Cubic Meters Reservoir Spillway Destroyed by Flood, Reasons Behind Tofu Dreg Projects

296 Million Cubic Meters Reservoir Spillway Destroyed by Flood, Reasons Behind Tofu Dreg Projects

296 Million Cubic Meters Reservoir Spillway Destroyed by Flood, Reasons Behind Tofu Dreg Projects

On September 1st, due to heavy rainfall and upstream flooding, the end of the spillway of Eping Hydropower Station was destroyed, the washout pit has an area of about 1500 square meters with a maximum depth of 15m. The retaining wall on the right bank of the spillway collapsed and caved in. This Hydropower station is located in Zhuxi County, Hubei Province. To avoid danger, the local government immediately organized emergency repairs. At the same time, a total of 5456 people from 15 villages downstream were transferred. The Reservoir has a total storage capacity of 296 million cubic meters. Eping Hydropower Station is located upstream of the Duhe River, and about 70km downstream is Pankou Hydropower Station, whose reservoir covers a water area of 61 square kilometers with a total storage capacity of 2.34 billion cubic meters. About 87km downstream from the Pankou Reservoir, the Duhe River joins the Hanjiang River in Yunyang District of Shiyan City, and 120km downstream from there is the Danjiangkou Reservoir, which has a water area of over 1,000 square kilometers with a storage capacity of 29.05 billion cubic meters. The Danjiangkou Reservoir is also the water source of the Central Line for the South-North Water Transfer Project. Eping Reservoir and Pankou Reservoir are located in the Daba Mountains. Both sides of the rivers are steep, and the riverbeds have a large drop along with the water flow. Once the dam of Eping Reservoir collapses, the water is bound to rush rapidly downstream to Pankou Reservoir. If the Pankou dam breaks, more than 2 billion cubic meters of water will continue downstream to the Danjiangkou Reservoir, and if that breaks, more than 30 billion cubic meters of water will cause enormous damage to the downstream cities of Lao-he-kou, Xiangyang, Jingzhou, and Wuhan. Even people living in the other areas along the downstream of Yangtze River will be affected. This effect is known as the “dam-break domino effect”, or simply “snowball effect”. On May 31, 2011, Eping was officially connected to the grid for power generation, which marked the completion of the main project of the Hydropower Station. Here comes the question. The Eping Hydropower Station has only been in operation for 15 years. How did the spillway get destroyed, and the retaining wall on the right bank collapse? Is this another typical tofu dreg project of China?