![Dams Grade: 2013 Report Card for America’s Infrastructure](https://www.infrastructureusa.org/wp-content/uploads/2013/05/Screen-shot-2013-05-06-at-12.50.27-PM.png)
AMERICAN SOCIETY OF CIVIL ENGINEERS
The average age of the 84,000 dams in the country is 52 years old. The nation’s dams are aging and the number of high-hazard dams is on the rise. Many of these dams were built as low-hazard dams protecting undeveloped agricultural land. However, with an increasing population and greater development below dams, the overall number of high-hazard dams continues to increase, to nearly 14,000 in 2012.