Denver Water’s plan is to raise the 340-ft-tall dam to 471 ft, enabling it to nearly triple the Gross Reservoir’s capacity ...

The 726-foot-high arch-gravity dam stretches 1,244 feet across the Black Canyon and was built over five years starting in 1931, helping provide water and hydroelectrical power to the West.

There are only a few arch dams in the UK, such as Monar Dam in Scotland. Other dam types are generally built straight. A ...

Saturday commemorates the 89th anniversary of the Hoover Dam's completed construction, considered by most experts "a modern miracle" and one of the most visited sites in the world. The 726-foot-high ...