Will the Three Gorges Dam be the world's largest hydro-electricity project? Or the worst ever environmental catastrophe?
Last week, a landslide in Badong County in Hubei Province, alongside the reservoir, killed more than 30 people after burying a bus.
Tan Qiwei, vice-mayor of Chongqing, a municipality next to the reservoir, told a government-sponsored conference in Septemeber last that the lake's banks had collapsed in 91 places.
These landslides are being caused by the huge weight of water behind the dam and fluctuations in the water level, delegates at the conference were told.
Farmers living near the dam's reservoir, which is 660 km (410 miles) long and an average of 1.1 km wide, tell a similar story.
They talk of frightening tremors since the dam was completed last year, that have left cracks in the walls of their homes.
Chongqing officials recently announced that four million more residents would have to be relocated to "protect the ecology of the reservoir area", according to state media reports.
The project's initial plan had been to move just 1.2 million people.
Wang Xiaofeng, deputy director of the government's Three Gorges Project Construction Committee, told the September conference, "[We cannot] profit from a fleeting economic boom at the cost of sacrificing the environment."
But despite these developments, China now insists that there have been no unforeseen environmental problems related to the project, due for completion in 2009.