![]() It held back what was then, and still is, the largest man-made lake in the United States. The amount of concrete used in building it was enough to pave a road stretching from San Francisco to New York City. Each spillway, designed to let floodwaters pass without harming the dam itself, can handle the volume of water that flows over Niagara Falls. Its base is as thick as two football fields are long. It was the highest dam in the world when it was completed in 1935. Hoover Dam is as tall as a 60-story building. This lesson is part of the National Park Service’s Teaching with Historic Places (TwHP) program. That is a year's supply for nearly one million households, according to the Arizona Department of Water Resources.(Bureau of Reclamation Andrew Pernick, photographer) The Bureau of Reclamation is likely to declare Lake Mead's most extreme shortage condition for the first time ever, which would cut water supplies to Arizona, Nevada and Mexico, spokesperson Patti Aaron said.Īrizona could have its supply cut by 320,000 acre-feet, Aaron said. "We're just desperately looking to the forecast to see when the monsoon might show up." Water supplies could be cut Wednesday, Arizona's governor declared an emergency after two fires burned more than 58,000 hectares and triggered evacuations.Īrizona is "in a completely unique situation relative to our historical records," said Michael Crimmins, a University of Arizona climate scientist. Officials across the West are enacting emergency measures. (Arizona Department of Forestry and Fire Management/Reuters) On Wednesday, Arizona's governor declared an emergency after two fires burned more than 58,000 hectares and triggered evacuations. Smoke plumes rise from a blaze as a wildfire rages on in Arizona on June 7. "Another couple inches would put us in a pretty good spot, but there's nothing like that in the forecast right now," he said. Jacobson's 1,415 hectares of mostly durum wheat, canola, peas and lentils near Crosby, N.D., have seen little rain this season beyond two inches in late May and a quarter-inch this week. ![]() In his decade of farming in North Dakota, Devin Jacobson has never seen it this dry. "Some states, especially parts of California and parts of the southwest, it's really quite extreme drought conditions," said Ben Cook, a climate scientist at NASA's Goddard Institute for Space Studies. Bureau of Reclamation, which manages water resources in the Western states. The rains that deluged the West at the end of 2015 - before the previous low-water mark was set at Lake Mead - were a mere respite from what is now a 22-year drought, the driest period in 115 years of record-keeping by the U.S. The drought that has brought Lake Mead low has gripped California, the Pacific Northwest, the Great Basin spanning Nevada, Oregon and Utah, plus the southwestern states of Arizona and New Mexico and even part of the Northern Plains.Īmid dangerous drought conditions, we’re inviting all Utahns - regardless of religious affiliation - to join us this weekend in collective and humble prayer for rain.Read more: /HS755aXE圓- 22-year-drought is driest period in 115 years It has fallen 42.7 metres since 2000 - nearly the height of the Statue of Liberty from torch to base - exposing a bathtub ring of bleached-white embankments. PT Wednesday, the lake surface fell to 327 metres above sea level, dipping below the previous record low set on July 1, 2016. It is crucial to the water supply of 25 million people including in the cities of Los Angeles, San Diego, Phoenix, Tucson and Las Vegas.Īs of 11 p.m. Lake Mead, formed in the 1930s from the damming of the Colorado River at the Nevada-Arizona border about 50 kilometres east of Las Vegas, is the largest reservoir in the United States. The reservoir created by Hoover Dam, an engineering marvel that symbolized the American ascendance of the 20th Century, has sunk to its lowest level ever, underscoring the gravity of the extreme drought across the U.S.
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