Boysen Reservoir Water Level
Wyoming · Wind River
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Water level history
About Boysen Reservoir
Boysen Reservoir is a reservoir on the Wind River in Wyoming, operated by U.S. Bureau of Reclamation. Its full summer pool sits at 4725 ft above sea level. Live water levels come from the U.S. Army Corps of Engineers (CWMS) and update hourly.
Understanding Boysen Reservoir's water level
"Full pool" is the elevation U.S. Bureau of Reclamation targets when Boysen Reservoir is completely filled — 4725 feet above sea level. Above that line the Corps deliberately keeps empty "flood storage" to absorb heavy rain, so the lake rarely sits far above 4725 ft for long. A reading a few feet under full is usually just the normal operating band rather than a sign of drought.
Boysen Reservoir fills on spring runoff from mountain snowpack, peaks in early summer, and then falls through the rest of the year as water is released for irrigation and downstream demand. A low reading in late summer is the normal end of that cycle; a low reading in June usually means a thin snow year.
The recent high and low above are drawn from the published history available for Boysen Reservoir, so they show how today compares over that record rather than an all-time extreme. The 12-month and 5-year chart views make the trend and the lake's usual seasonal shape easy to see.
Boysen Reservoir — frequently asked
What is the current water level of Boysen Reservoir?
The gauge at the top of this page shows Boysen Reservoir's current elevation in feet above sea level, updated from the U.S. Army Corps of Engineers (CWMS).
What is full pool for Boysen Reservoir?
Boysen Reservoir's full summer pool is 4725 feet above sea level. Levels are typically drawn down below that in winter for flood storage.
Who manages Boysen Reservoir?
Boysen Reservoir is operated by U.S. Bureau of Reclamation on the Wind River.
Where is Boysen Reservoir located?
Boysen Reservoir is in Wyoming, on the Wind River.
Why is Boysen Reservoir low right now?
Reservoir levels fall during dry spells and seasonal drawdown — when U.S. Bureau of Reclamation lowers the pool for flood storage, power, or water supply — and recover after rain and snowmelt. The history chart above shows the recent trend.
What are the record high and low levels for Boysen Reservoir?
The recent record high and low elevations are shown in the stats on this page, computed from the available published history for Boysen Reservoir.
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See current levels for all 5 Wyoming lakes and reservoirs →
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