China Completes Dam Across Yangtze River

China finished building the Three Gorges dam across the Yangtze River on Saturday, a key milestone for the world’s largest hydroelectric project.

The 1.4-mile-long dam was designed to stop deadly floods that regularly ravage China’s farming heartland, and eventually produce 22.4 million kilowatts of electricity — enough to light up Shanghai on a peak day with power to spare.