Home : China Guide : Three Gorges : Three Gorges Dam
 The Dam Site
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 dam is of a concrete gravity type. The total length of the dam axis is 2,309.47m, with the crest elevation at 185 m and a maximum height of 175 m.
The spillway section, which is located in the middle of the river course, is 483 m long in total. In this section, there are 23 bottom outlets and 22 surface sluice gates. The dimensions of the bottom outlets are 7 * 9 m, with the elevation of the inlets at 90 m. The net width of the surface sluice gates is 8 m, with its sill elevation at 158 m. In the downstream part of this section, flip bucket for energy dissipation is provided.
On both sides of this section, there will be arranged the intake - dam and non- overflow dam sections.
The maximum discharge capacity of the Project can reach 116,000 m 3 /s, which is able to discharge the possible maximum flood.
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