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last mo.

Lake Powell Falls to Record Low, Hydropower Threatened

The plunge brings Glen Canyon Dam within about 30 feet of the turbines' minimum operating level: federal managers have begun emergency transfers and proposed a multi‑year cuts plan to avert worse losses.

The Wahweap Marina floats on Lake Powell at the Glen Canyon National Recreation Area, on July 15, 2026.
Low water levels in Lake Powell are apparent in this February 2026 image showing the end of a floating dock hanging off a cliff at Antelope Marina in Page, Arizona. Workers carved a new path to the water through the solid rock.
A view of the Colorado River at Horseshoe Bend on July 31.
A tall bleached “bathtub ring” is visible on the rocky banks of Lake Powell as boats navigate the waters on July 30, 2026, in Page, Ariz.

Overview

  • Lake Powell fell to a provisional record low of about 3,519.9 feet on Saturday, a reading from the U.S. Bureau of Reclamation that places the reservoir roughly 30 feet above the minimum power pool where turbines stop working.
  • If levels drop below the minimum power pool at 3,490 feet the dam would have to route water through outlet works that bypass turbines, and falling further toward the deadpool near 3,370 feet would stop downstream flow through the structure.
  • Federal managers have started emergency transfers from upstream reservoirs and paid conservation programs while the Bureau of Reclamation advances a post‑2026 framework that could force multi‑year mandatory cuts concentrated on Lower Basin states.
  • The decline already hits people and businesses: marinas and boat ramps have closed or moved, farmers face sharper irrigations cuts because they hold senior water rights, and Tribes and smaller communities may lack affordable alternatives.
  • Scientists and officials say the low marks reflect a decades‑long decline in runoff driven by warming and reduced snowpack and that recovery would require multiple years of above‑average mountain runoff plus sustained demand reductions.