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Lake Powell Water Levels — Historical and Current

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Most recent chart update:

 
Horizontal Axis: Years
Vertical Axis: Feet above Mean Sea Level

 
Horizontal Axis: Years
Vertical Axis: Million Acre-Feet

Term Definition
Power Pool Minimum water level that allows power generation
Dead Pool Minimum water level that allows water to flow out of the reservoir

These charts are dynamically updated. This page reads data from a government archive of water heights/storage for Lake Powell from its first filling to the present, and draws the chart on that basis. The database, located at https://www.usbr.gov/uc/water/hydrodata/, is updated regularly. This page's graphic updates itself in step with the data source, over time giving an easy-to-interpret picture of Lake Powell water levels.

 
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