The Zangmu Dam (藏木) is a gravity dam on the Yarlung Zangbo/Brahmaputra River 9 km (5.6 mi) northwest of Gyaca in the Tibet Autonomous Region of China. The purpose of the dam is hydroelectric power production using run-of-the-river technology. It is part of the Zangmu Hydropower Project and supports a 510 MW power station. Construction began in 2009 and the first generator was commissioned in November 2014. The last became operational on 13 October 2015. It is the first dam on the Brahmaputra/Yarlung Zangbo River and has caused controversy in India.