China Starts Building World's Largest Dam Over Brahmaputra River

China has initiated the construction of a massive dam on the Brahmaputra River in Tibet, near Arunachal Pradesh. This $167.8 billion project is located at Nyingchi City and was announced by Chinese Premier Li Qiang during a ceremony. The dam, known locally as Yarlung Zangbo, is expected to be the world's largest infrastructure project.

The hydropower station will feature five cascade stations with an estimated investment of 1.2 trillion Yuan. It aims to generate over 300 billion kWh annually, enough for more than 300 million people. The electricity produced will primarily serve external demands while also meeting local needs in Tibet, referred to by China as Xizang.

Concerns and Implications

India and Bangladesh have expressed concerns about this project due to its potential impact on water flow. The dam's size could allow China to control water release, posing risks during conflicts. India is also constructing a dam on the Brahmaputra in Arunachal Pradesh.

The dam's location presents significant engineering challenges due to its proximity to tectonic plate boundaries prone to earthquakes. The Tibetan plateau frequently experiences seismic activity, raising safety concerns about the project's stability.

Safety Measures and Geological Considerations

An official statement last December assured that the hydropower project prioritises ecological protection and safety despite earthquake risks. Extensive geological studies and technological advancements have been employed to ensure secure development.

The Brahmaputra River flows through the Tibetan Plateau, creating Earth's deepest canyon. The dam will be constructed in one of the region's rainiest areas, adding complexity to its development.

International Cooperation and Data Sharing

In 2006, India and China established an Expert Level Mechanism (ELM) for trans-border river discussions. Under this framework, China shares hydrological data with India during flood seasons for both the Brahmaputra and Sutlej rivers.

Data sharing was a topic during talks between India's NSA Ajit Doval and China's Foreign Minister Wang Yi last December. These discussions aim to address mutual concerns regarding river management and border issues.

The project received approval in December last year and is set at a gorge where the Brahmaputra makes a U-turn into Arunachal Pradesh before flowing into Bangladesh. This ambitious endeavour dwarfs other infrastructure projects globally, including China's Three Gorges Dam.