The dam site is 27 miles upstream from Yichang City proper, at Sandouping Town, 38km upstream from the Gezhouba Dam Lock, inside the third of the Three Gorges. It is planned to be by far the largest hydroelectric project in the world. The Project calls for the construction of a concrete dam, a hydroelectric power plant and a series of locks just below the scenic Three Gorges region. The project is designed to be built in three phases and is scheduled for completion in year 2009.

The experimental dam of the Gezhouba Project is located at the lower end of the Three Gorges in the suburb of Yichang City, 38 km downstream of the TGP. Gezhouba Project is a cascade which regulates the tailwater flow from the TGP and improves the navigation conditions between the two dams.

From east to west, Qutang Gorge measures 8 kilometers, starting from Baidicheng and ending at Daixi township. With vertical cliffs of some thousand meters high as its two flanks, the Qutang Gorge is only a few dozens of meters wide just like a narrow gateway. With swash and rumble, the surging Yangtze River pours into the gateway with great momentum. Looking up towards the tops of towering precipitous mountains along the Gorge, one sees from a boat only a narrow strip of clouds and sky, but under foot the River tears on violently.