While more than 100,000 persons lined the streets the city of Los Angeles staged a brilliant celebration of the first transfer of power from Boulder...歸檔
An 82,500 kilovolt-ampere rotor is lowered into place on the Arizona wing of the Boulder Dam during its construction.建築業
The top of the Hoover Dam, formerly known as Boulder Dam, on the Nevada - Arizona border and on the Colorado river.
The Hoover Dam is seen on October 8, 2025 in Boulder City, Nevada. Constructed between 1931 and 1936, the dam is located in the Black Canyon of the...
The Hoover Dam is seen on October 8, 2025 in Boulder City, Nevada. Constructed between 1931 and 1936, the dam is located in the Black Canyon of the...
The Hoover Dam, a concrete arch-gravity dam along the Colorado River on March 14, 2025 in Boulder City, Nevada.
The Hoover Dam, a concrete arch-gravity dam along the Colorado River on March 14, 2025 in Boulder City, Nevada.
Tourists view the Hoover Dam holding back the Colorado River to form Lake Mead April 15, 2023 in in Boulder City, Nevada. Built between 1930 and...
The Hoover Dam holds back the Colorado River April 15, 2023 in Boulder City, Nevada. Built between 1930 and 1936, the 726 foot dam is used for flood...
View of water intake towers at the Hoover Dam on August 19, 2022 in Lake Mead National Recreation Area, Arizona. The federal government announced...水壩
View shows Lake Mead behind the Hoover Dam, the Hoover Powerplant below and the Colorado River from the Nevada side of the Mike O'Callaghan-Pat...
July 05: Hoover Dam recorded its Highest Water Level at 1,225.44 feet in only a few times in history that water has overflowed from Lake Mead into...
Caterpillar Sixty Track-Type bulldozer working 800-feet above the Colorado River, one of six one-man roadbuilding machines used in the construction...建築業
Employee walks inside a tunnel at Hoover Dam in the Black Canyon of the Colorado River, on the border between the U.S. States of Nevada and...加州
Les ouvriers photographiés devant les transformateurs géants de l'usine électronique du 'Boulder Dam' servant à la construction du barrage de Boulder...水壩, 美國, 職業
Generators operate in the Arizona sector hydroelectric power plant of Hoover Dam near Boulder City, Nevada, U.S., on Wednesday, June 3, 2009. There...
An aerial view of the Hoover Dam and the Hoover Dam bypass under construction June 12, 2009 in the Lake Mead National Recreation Area, Arizona.
Four generators, each of 82,500 kilovolt ampere capacity, in the Nevada wing of the Boulder Dam during its construction, circa 1935.發電廠, 建築業
An aerial photo of Hoover Dam with the Lake Mead reservoir behind. The white lines along the shore indicate the dropping water level of the reservoir...
The Hoover Dam in the Black Canyon of the Colorado River, with Lake Mead visible behind it, circa 1950.
Men take in the view of the Boulder Dam and Lake Mead from the Nevada side of the Colorado River. | Location: Border of Arizona and Colorado, USA.
The Hoover Dam, built in 1936, supplies electricity and water to California, Nevada and Arizona. | Location: Black Canyon, Nevada, USA.
The Hoover Dam, built in 1936, supplies electricity and water to California, Nevada and Arizona. | Location: Black Canyon, Nevada, USA.
The Hoover Dam, built in 1936, supplies electricity and water to California, Nevada and Arizona. | Location: Black Canyon, Nevada, USA.
Black and white photograph of the Hoover Dam, buildings that are part of the dam facility and jet-flow gates are visible in the foreground; the image...水壩
Near Las Vegas is the Hoover Dam, greatest in the world, which is a favorite with sightseeing resort visitors. John Smith of Meridian, Mississippi...
Tall bleached 'bathtub ring' is visible on the steep rocky banks of Lake Mead at the Hoover Dam on May 12, 2015 in Lake Mead National Recreation...