Blue Mesa Reservoir water level

Of full pool
19.1%
▼ 0.6 points since September 20, 2026

▼ 37.4 points from 56.5% a year ago

0%100% full
Current elevation
7413.03 ft
Reading as of
Sep 29, 2026

Source: data.usbr.gov/rise/api/catalog-item/78, accessed October 1, 2026. Updated every 6 hours.

Blue Mesa Reservoir is at 19.2% of full pool (7413.1 ft) as of September 26, 2026. Blue Mesa Reservoir was last full on August 20, 2023 (95% of normal storage). Blue Mesa Reservoir is near Gunnison, Colorado.

Blue Mesa Reservoir level history

Last full
August 20, 2023
95% of normal storage
Highest since 1965
7,519.64 ft
July 8, 1970
Lowest since 1969
7,413.1 ft
September 26, 2026, counted after it first filled
Data covers
1965 to today
from November 30, 1965

This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: Bureau of Reclamation daily data.

Storage, % of full pool, since 1966

Blue Mesa Reservoir storage, percent of full pool, since 1966: 0.1% on February 6, 1966, 19.3% on September 26, 2026.

Blue Mesa Reservoir is falling: 19.3% full, down 0.4 percentage points since September 20, 2026.

On this same date last year (September 28, 2025), Blue Mesa Reservoir was 56.5% full, 37.2 percentage points higher than today's 19.3%.

Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).

Latest
19.3%
September 26, 2026
Previous reading
19.7%
September 20, 2026
Same date last year
56.5%
September 28, 2025

Blue Mesa Reservoir is at 38.4533, -107.3342. Open in OpenStreetMap.

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The dam

Height
390 ft
Built
1966
Name
Blue Mesa Dam
Operator
Bureau of Reclamation

Sources: nid.sec.usace.army.mil, accessed September 29, 2026

On the water

No campgrounds, boat ramps, or swim spots linked to Blue Mesa Reservoir yet.

Common questions

Blue Mesa Reservoir is at 19.2% of full pool (7413.1 ft) as of September 26, 2026.
Blue Mesa Reservoir was last full on August 20, 2023, when it held 95% of its normal storage (elevation 7,506.28 ft). This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on Bureau of Reclamation daily data since January 31, 1966.
In Bureau of Reclamation daily data since November 30, 1965, Blue Mesa Reservoir's highest elevation was 7,519.64 ft on July 8, 1970. Its lowest after it first filled (July 23, 1969) was 7,413.1 ft on September 26, 2026. These are the highest and lowest daily readings in the published data, not official records.
Blue Mesa Reservoir is near Gunnison, Colorado (38.4533, -107.3342).
Bureau of Reclamation operates the dam at Blue Mesa Reservoir.
Blue Mesa Reservoir's dam is used for Flood control, Hydropower, Irrigation, Recreation.