OROVILLE, Calif. -- A gaping hole in the spillway for the tallest dam in the United States has grown and authorities said they expect it will continue eroding as water washes over it but the Oroville ...

Around this time, 89 years ago, the Hoover Dam began supplying electricity to the city of Los Angeles.Finished in 1935 and located along the Nevada and Arizona state lines, the concrete arch structure ...

The number of dams in the United States at risk of overtopping is increasing, "threatening their structural integrity and downstream communities," according to a new study from Florida. About 250,000 ...

Dams in the United States may be in worse condition than previously understood. More than 16,700 dams across the country are ...