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Since Glen Canyon Dam was commissioned in 1964 and it first began filling, Lake Powell has never been like it is right now, at just 27% of its capacity. It’s threatening to dip below the minimum elevation needed to produce hydropower within the next year. A string of dry winters could push it to dead pool status.
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As water levels in Lake Powell keep dropping, activists say Glen Canyon Dam is in need of upgrades to its plumbing so it can keep sending water downstream.
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The U.S. Bureau of Reclamation announced two measures today to boost water levels in Lake Powell, keeping them high enough to continue generating hydropower at the Glen Canyon Dam. Both moves are being framed as painful but necessary band-aids.One measure will send water from Flaming Gorge Reservoir to help refill Lake Powell. About 500,000 acre-feet of water will be released from Flaming Gorge Reservoir, which straddles the border between Wyoming and Utah. Another measure will reduce the amount of water sent downstream, withholding supplies from Lake Mead, a reservoir that provides storage for California, Arizona and Nevada.
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A new plan will release water from Flaming Gorge Reservoir, a measure designed to boost dropping levels in Lake Powell. The releases come as a response to record lows, which are on course to drop too low to generate hydropower at the Glen Canyon dam. The Drought Response Operations Plan brings together the four states of the upper Colorado River basin – Colorado, Utah, Wyoming and New Mexico – and the federal government.
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Lake Powell is is strained by more than two decades of drought, and its water levels are dipping dangerously low. The reservoir passed an important threshold. Water levels went below 3,525 feet – the last major milestone before a threat to hydropower generation at the Glen Canyon Dam. What's next for the nation's second-largest reservoir?
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Lake Powell's fall to below 3,525 feet puts it at its lowest level since the lake filled after the federal government dammed the Colorado River at Glen Canyon more than a half century ago — a record marking yet another sobering realization of the impacts of climate change and megadrought.
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The U.S. Energy Information Administration projects that there was a 14% dip in hydropower in the U.S. this year. The vast majority of that decline is in the West. Less moisture and higher temps meant lower reservoir levels and decreased the ability to get energy from hydro dams. While utilities have long prepared for droughts, they’re becoming more frequent due to climate change.
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The U.S. government released projections Wednesday that indicate an even more troubling outlook for a river that serves 40 million people in the American West.
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Federal officials declared a first-ever water shortage for the lower Colorado River, triggering mandatory cutbacks for some users. Ongoing drought across the West, increased demand and the wide-reaching effects of climate change have steadily reduced water levels in the nation’s largest reservoirs. Usage restrictions will begin in January, and are expected to be felt most sharply by farmers in Arizona.
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The massive reservoir on the Colorado River hit a new historic low on July 24, dropping below 3,555.1 feet in elevation. The previous low was set in 2005. The last time the reservoir was this low was in 1969, when it first filled.