Reservoir · Colorado · United States · BOR RISE
Blue Mesa Reservoir
Blue Mesa Reservoir Dam and Powerplant
19.9% full
Capacity
923.17 hm³
Volume stored
183 hm³
Vs month average
37% of normal
Coordinates
38.464°N, 107.225°W
Last updated
2026-10-26
Current fill
19.9%vs 7 days ago
+1.4 ppgaining
vs 1 year ago
-33.2 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
37%of normal
19.9% full on 2026-10-26, against an average of 53.2% for October across 6 years of readings (-33.3 points).
Drought Monitor at this site · 20 October 2026
D3extreme drought
The ground at Blue Mesa Reservoir's coordinates falls inside the D3 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Colorado drought figures →
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.464°N, 107.225°W · Open in Google Maps
About Blue Mesa Reservoir
As of October 26, 2026, Blue Mesa Reservoir is filled to 19.9% of its total capacity, holding 183.3 hm³ of water out of a maximum 923.17 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has risen by 1.4 percentage points, and it is 33.2 points below its level on the same date a year earlier.
Across the readings we hold for Blue Mesa Reservoir — 1824 data points between October 29, 2021 and October 26, 2026 — the level has ranged from a low of 18.5% (October 19, 2026) to a high of 102.2% (June 25, 2023). On average the reservoir is fullest around July and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It is at 38.464°N, 107.225°W.
Key facts
- Current fill level
- 19.9% of total capacity
- Water stored
- 183.3 hm³
- Total capacity
- 923.17 hm³
- 7-day change
- ▲ 1.4 pp
- Year-on-year
- ▼ 33.2 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 38.464°N, 107.225°W
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 19.9% | 183.3 |
| 25 Oct 2026 | 19.6% | 181.16 |
| 24 Oct 2026 | 19.3% | 178.32 |
| 23 Oct 2026 | 19.0% | 175.29 |
| 22 Oct 2026 | 18.7% | 172.46 |
| 21 Oct 2026 | 18.6% | 171.38 |
| 20 Oct 2026 | 18.6% | 171.34 |
| 19 Oct 2026 | 18.5% | 171.04 |
| 18 Oct 2026 | 18.6% | 171.25 |
| 17 Oct 2026 | 18.6% | 171.6 |
| 16 Oct 2026 | 18.6% | 171.94 |
| 15 Oct 2026 | 18.7% | 172.46 |