AP investigation: Aging US dams pose risk to thousands

An investigation by The Associated Press shows that scores of dams across the U.S. are in a state of decay and are endangering thousands of people who live downstream.
The more than two-year investigation relied on federal data and records obtained separately from nearly every state to identify at least 1,680 high-hazard dams that are rated in poor or unsatisfactory condition. A high-hazard dam is one that would endanger human life if it failed.
The actual number is almost certainly greater: Som