Record Low Levels at Lake Powell Signal Deepening Colorado River Crisis

Lake Powell, the United States’ second-largest reservoir, fell to a record low elevation of 3,519.91 feet on a recent Saturday, just under 30 feet above the level at which Glen Canyon Dam can no longer generate hydropower. A week earlier, Lake Mead reached its lowest point since the system was first filled in the 1950s. Together, the two reservoirs hold just under 60 % of the water stored in the Colorado River basin, marking the most severe depletion since 1957.

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The Colorado River basin has endured three decades of drought, the worst dry spell in at least 1,200 years. Higher temperatures and sustained withdrawals have shrunk the river’s flow by roughly 20 % since 2000. Reduced snowpack this winter further lowered inflows.

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• Lake Powell elevation: 3,519.91 ft (1072.9 m) – >20 ft below the start-of-year level (U.S. Bureau of Reclamation).

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• Hydropower threshold: ~3,490 ft; below 3,370 ft (“deadpool”) the dam would cease downstream flow.

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• Lake Mead status: lowest level since initial filling.

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• Basin reliance: water serves ?40 million people and irrigates >5 million acres across seven states.

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• Historical comparison: combined storage last this low in May 1957.

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Jack Schmidt, director of the Center for Colorado River Studies at Utah State University, called the situation “uncharted territory.” Brad Udall, senior water and climate research scientist at Colorado State University, warned that without “extraordinary measures” the reservoir could reach the minimum power pool this year. State and municipal officials in Arizona have begun securing backup water supplies, noting that cities such as Phoenix and Tucson are “first in line for cuts.” Federal authorities are preparing a plan, expected in the coming days, that will outline mandatory water-use reductions for the basin states through 2028.

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Tourism around Lake Powell is already feeling the strain. Marinas have relocated to deeper water, and several boat ramps have been closed or rebuilt. Visitors captured the high-water “bathtub ring” on July 15, 2026, a visual reminder of the receding shoreline.

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Federal officials will release a detailed water-allocation strategy within days, specifying cuts for Arizona, California, Nevada, and other basin states through 2028. While an upcoming El Niño could bring additional precipitation, experts stress that even a record snowpack would not lift the system out of the “danger zone.” Continued monitoring and potential “draconian” water-use restrictions are anticipated if levels approach the minimum power pool.

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• “Even record snowpack this winter will not be enough to get us out of the danger zone,” — Sarah Porter, director of the Kyl Center for Water Policy at Arizona State University

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