Official Bureau of Reclamation Web Site for Hoover Dam. Information provided about the construction of the dam, how it works, and how to take a tour of the dam. Skip to Primary Navigation

Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. Constructed between 1931 and 1936, during the Great Depression, it was dedicated on September 30, …

Hoover Dam, spanning the Arizona-Nevada border about 30 miles southeast of Las Vegas, is the most-visited dam in the world, counting some 7 million tourists a year. With its 110-mile-long Lake Mead, Hoover Dam and its corresponding system of tunnels, outlet works, spillways, powerplant, and transmission lines has transformed this bone-dry slice ...

Expect anything but the ordinary during your visit to Hoover Dam. Take a tour and go behind the scenes of this marvel of modern engineering to explore rarely seen areas and discover how the dam was carved out of the Colorado River’s Black Canyon in the 1930s.

Hoover Dam: Open to the public daily from 5:00 a.m. to 9:00 p.m. (PST). Open daily 9:00 a.m. to 5:00 p.m. (except Thanksgiving and Christmas Day). Doors close at 4:15 p.m. Last tour departs at 3:45 p.m. Additional Information: (702) 494-2517 or (702) 494-2901. Email: [email protected].

Hoover Dam is a concrete arch gravity dam located about 70 miles from Laughlin, Clark, Nevada. The dam, which is on the Colorado River, was primarily built for hydroelectric purposes, but also serves for Irrigation and Water Supply benefits.

2010年4月14日 · The largest dam in the world at the time of its completion in 1935, this National Historic Landmark stores enough water in Lake Mead to irrigate 2 million acres and serves as a popular tourist ...

2025年2月15日 · Hoover Dam, dam in Black Canyon on the Colorado River, at the Arizona - Nevada border, U.S. Constructed between 1930 and 1936, it is the highest concrete arch- gravity dam in the United States. It impounds Lake Mead, which extends for 115 miles (185 km) upstream and is one of the largest artificial lakes in the world.

Standing watch over the Colorado River, Hoover Dam draws more than seven million annual visitors and remains one of the West's most visited attractions. Learn more about Hoover Dam history, tours, activities, and more.

Hoover Dam and Lake Mead, spanning the Arizona-Nevada state line, are located in the Black Canyon of the Colorado River about 35 miles southeast of Las Vegas, Nevada. It is a concrete thick-arch structure, 726.4 feet high and 1,244 feet long.