After two storms struck Hawaii over the past week, causing flooding, officials warned that a large dam on the island of Oahu ...

A worst-case collapse of China’s Three Gorges Dam sounds like a nightmare: a wall of water racing down the Yangtze, overwhelming cities like Wuhan and Shanghai, crippling a basin that powers about 40 ...

After three torrential storms dumped 10 inches of rain on Northern California in nine days in February 1986, Sacramento’s flood protections were bursting at the seams. Something had to give — and did.