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NewsKPBS Public MediaAugust 17, 2026San Diego

Lake Powell water levels hit record low, threatening regional power and water supply

Lake Powell has reached a record-low elevation of 3,519.91 feet, placing the reservoir within 30 feet of the threshold where hydroelectric power generation must cease. This decline, alongside similar lows at Lake Mead, threatens water and electricity access for 40 million people across seven states.

water managementdroughthydroelectric powerColorado Riverinfrastructure
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Why It Matters

The depletion of Lake Powell threatens the stability of the regional power grid and water supply for 40 million residents in seven states, with federal officials considering major water cuts to prevent a total loss of hydroelectric capacity.

Key Facts

  • Lake Powell elevation dropped to 3,519.91 feet on Saturday, a new record low.
  • The reservoir is currently 20 feet lower than it was at the start of the year.
  • The water level is 30 feet away from the point where hydroelectric turbines stop producing power.
  • Federal officials warned in April that a major intervention is needed to avoid reaching the power-loss threshold by the end of this year.
  • The U.S. Bureau of Reclamation proposed a 10-year plan in July involving potential water cuts for Arizona, California, and Nevada.
  • Combined storage in Lake Powell and Lake Mead is at its lowest point since May 1957.
  • The Colorado River Basin provides resources for 40 million people across seven states.
  • Low water levels have forced the closure and relocation of marinas and boat ramps at Lake Powell.

Who's Mentioned

locationLake Powell“Second-largest reservoir in the U.S. currently at record-low levels.”organizationU.S. Bureau of Reclamation“Federal agency managing the reservoirs and proposing water cut plans.”locationLake Mead“Major reservoir in the Colorado River system also at historic lows.”otherGlen Canyon Dam“Dam holding back Lake Powell.”