Baihetan Dam plant in the world, after the Three Gorges Dam. When finished, it will be the third largest dam in China and the fourth in the world, in terms of dam volume. Construction on the dam began in 2008 and is expected to be complete in 2021. Baihetan Dam The Baihetan Dam () is a large hydroelectric dam under construction on the Jinsha River, a tributary of the Yangtze River in Sichuan and Yunnan provinces, in the southwest of China. The dam is a 277 m tall double-curvature arch dam with a crest elevation of 827 m. Its width will be
Three Gorges Dam by 190 million tonnes, sulfur dioxide by 2.29 million tonnes, and nitrogen oxides by 980,000 tonnes. The dam increased the Yangtze's barge capacity sixfold, reducing carbon dioxide emission by 630,000 tonnes. From 2004 to 2007, a total of 198 million tonnes of goods passed through the ship locks. Compared to using trucking, barges reduced carbon dioxide emission by ten million tonnes and lowered costs by 25%. Two hazards are uniquely identified with the dam. One is that sedimentation projections are not agreed upon, and the other is that the dam sits on a seismic fault. At current levels, 80% of