How long did it take to build the three gorges dam?

The Three Gorges Dam is 2,335 meters (7,661 ft) long, 185 meters tall (607 ft), and 115 meters (377.3 ft) wide.

The Three Gorges Dam site is 27 miles upstream from Yichang City proper, at Sandouping Town, 38km upstream from the Gezhouba Dam Lock.